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Manufacturers

Boilers Boiler Efficiency Rating

ModelTypeFuelEfficiency
A J Wells and Sons Charnwood OLX45 Hearth BoilerNon-CondensingOil82.6%
A O Smith UB70 GCondensingGas89.5%
ACV HeatMaster 35TCCondensingGas89.7%
ACV HeatMaster 35TC PCondensingLPG90.7%
ACV Prestige 24 ExcellenceCondensingGas89.6%
ACV Prestige 24 Excellence PCondensingLPG90.6%
ACV Prestige 24 SoloCondensingGas89.3%
ACV Prestige 24 Solo PCondensingLPG90.3%
ACV Prestige 32 ExcellenceCondensingGas89.6%
ACV Prestige 32 Excellence PCondensingLPG90.6%
ACV Prestige 32 SoloCondensingGas89.3%
ACV Prestige 32 Solo PCondensingLPG90.3%
ACV Prestige 50 SoloCondensingGas88.9%
ACV Prestige 50 Solo PCondensingLPG89.9%
ACV Prestige 75 SoloCondensingGas88.9%
ACV Prestige 75 Solo PCondensingLPG89.9%
Alde Slimline 2927Non-CondensingGas70.0%
Alpha 240ENon-CondensingGas78.3%
Alpha 240E Alpha Combimax 350Non-CondensingGas78.7%
Alpha 240pNon-CondensingGas70.0%
Alpha 240XNon-CondensingGas74.3%
Alpha 240xeNon-CondensingGas70.0%
Alpha 240xpNon-CondensingGas70.0%
Alpha 280ENon-CondensingGas78.9%
Alpha 280E Alpha Combimax 600Non-CondensingGas79.3%
Alpha 280PNon-CondensingGas74.9%
Alpha 500ENon-CondensingGas78.6%
Alpha C23Non-CondensingGas78.9%
Alpha C27Non-CondensingGas78.9%
Alpha CB24Non-CondensingGas79.2%
Alpha CB24XNon-CondensingGas79.2%
Alpha CB28Non-CondensingGas80.1%
Alpha CB28XNon-CondensingGas80.1%
Alpha CB50Non-CondensingGas80.3%
Alpha CD 25 CCondensingLPG90.0%
Alpha CD 28 CCondensingLPG89.7%
Alpha CD 35 CCondensingLPG90.3%
Alpha CD 50 SCondensingLPG89.5%
Alpha CD 70 SCondensingLPG89.7%
Alpha CD12SCondensingLPG89.6%
Alpha CD13RCondensingGas88.5%
Alpha CD18RCondensingGas88.4%
Alpha CD18SCondensingGas88.6%
Alpha CD20SCondensingLPG89.8%
Alpha CD24CCondensingGas88.7%
Alpha CD24RCondensingGas88.6%
Alpha CD24SCondensingGas88.8%
Alpha CD25XCondensingGas88.6%
Alpha CD28SCondensingLPG89.8%
Alpha CD28XCondensingGas88.5%
Alpha CD30SCondensingGas88.6%
Alpha CD32CCondensingGas88.8%
Alpha CD50CondensingGas89.3%
Alpha E-Tec 28CondensingGas88.9%
Alpha E-Tec 28 LPGCondensingLPG89.9%
Alpha E-Tec 33CondensingGas89.0%
Alpha E-Tec 33 LPGCondensingLPG90.0%
Alpha EcoCondensingGas88.8%
Alpha Eco2CondensingLPG89.8%
Alpha Eco2 PlusCondensingGas88.8%
Alpha Evoke 28CondensingGas88.9%
Alpha Evoke 28 LPGCondensingLPG89.9%
Alpha Evoke 33CondensingGas89.0%
Alpha Evoke 33 LPGCondensingLPG90.0%
Alpha HE CB25CondensingGas85.9%
Alpha HE CB33CondensingGas85.9%
Alpha HE SY25CondensingGas86.0%
Alpha InTec 12SCondensingGas88.8%
Alpha InTec 18SCondensingGas89.3%
Alpha InTec 24XCondensingGas89.2%
Alpha InTec 26CCondensingGas89.2%
Alpha InTec 28SCondensingGas88.9%
Alpha InTec 28XCondensingGas88.2%
Alpha InTec 30CCondensingGas88.2%
Alpha InTec 30GSCondensingLPG89.8%
Alpha InTec 34CCondensingGas88.8%
Alpha InTec 40 GS2CondensingGas88.9%
Alpha InTec 40GSCondensingLPG89.9%
Alpha InTec 50 CSCondensingLPG90.0%
Alpha InTec2 20SECondensingGas88.9%
Alpha InTec2 25 XCondensingLPG89.8%
Alpha InTec2 25XECondensingGas88.8%
Alpha InTec2 26CECondensingGas88.8%
Alpha InTec2 28 XCondensingLPG89.8%
Alpha InTec2 28XCondensingGas88.8%
Alpha InTec2 28XECondensingGas88.8%
Alpha InTec2 30CECondensingGas88.8%
Alpha InTec2 30SECondensingGas89.0%
Alpha InTec2 35CECondensingGas88.9%
Alpha SY24Non-CondensingGas79.3%
Aquaflame Eco-Avance 25CondensingOil90.1%
Aquaflame Eco-Avance 28CondensingOil90.2%
Aquaflame Eco-Avance 30CondensingOil89.8%
Aquaflame Eco-Avance II 15CondensingOil89.9%
Aquaflame Eco-Avance II 19CondensingOil89.9%
Aquaflame Eco-Avance II 24CondensingOil90.1%
Aquaflame Eco-Avance II 27CondensingOil90.1%
Aquaflame Eco-Avance II 30CondensingOil90.1%
Aquaflame Eco-Avance II 38CondensingOil89.9%
Aquaflame Evolution II 110Non-CondensingOil84.6%
Aquaflame Evolution II 50Non-CondensingOil83.9%
Aquaflame Evolution II 65Non-CondensingOil83.9%
Aquaflame Evolution II 80Non-CondensingOil83.9%
Aquaflame Evolution II 95Non-CondensingOil84.0%
Aquaflame Gem 50Non-CondensingOil70.0%
Aquaflame Gem 50 BNon-CondensingOil70.0%
Aquaflame Gem 50 FNon-CondensingOil70.0%
Aquaflame Gem 70Non-CondensingOil70.0%
Aquaflame Gem 70 BNon-CondensingOil70.0%
Aquaflame Gem 70 FNon-CondensingOil70.0%
Aquaflame Gem 90Non-CondensingOil70.0%
Aquaflame Gem 90 BNon-CondensingOil70.0%
Aquaflame Gem 90 FNon-CondensingOil70.0%
Aquaflame HE 15CondensingOil90.7%
Aquaflame HE 19CondensingOil90.6%
Aquaflame HE 22CondensingOil90.0%
Aquaflame Quartz 110Non-CondensingOil70.0%
Aquaflame Quartz 110 BNon-CondensingOil70.0%
Aquaflame Quartz 110 FNon-CondensingOil70.0%
Aquaflame Quartz 135Non-CondensingOil70.0%
Aquaflame Quartz 135 BNon-CondensingOil70.0%
Aquaflame Quartz 135 FNon-CondensingOil70.0%
Aquaflame Quartz 150Non-CondensingOil70.0%
Aquaflame Quartz 160 BNon-CondensingOil70.0%
Aquaflame Quartz 160 FNon-CondensingOil70.0%
ARCA Pixel 25 FCCondensingGas89.1%
ARCA Pixel 25 FCRCondensingGas89.2%
ARCA Pixel 31 FCCondensingGas89.1%
ARCA Pixel 31 FCRCondensingGas89.2%
ARCA PIXELfast 120/25 FCCondensingGas89.1%
ARCA PIXELfast 120/26 FCXCondensingGas88.7%
ARCA PIXELfast 120/31 FCCondensingGas89.1%
ARCA PIXELfast 25 FCCondensingGas89.1%
ARCA PIXELfast 25 FC SunCondensingGas89.1%
ARCA PIXELfast 25FCRCondensingGas89.2%
ARCA PIXELfast 26 FCXCondensingGas88.7%
ARCA PIXELfast 26 FCX SunCondensingGas88.7%
ARCA PIXELfast 26 FCXRCondensingGas89.0%
ARCA PIXELfast 31 FCCondensingGas89.1%
ARCA PIXELfast 31 FC SunCondensingGas89.1%
ARCA PIXELfast 31 FCRCondensingGas89.2%
ARCA PIXELfast B 25 FCCondensingGas89.8%
ARCA PIXELfast B 26 FCXCondensingGas88.7%
ARCA PIXELfast B 31 FCCondensingGas89.8%
Ariston ACO 27 MFFICondensingGas88.7%
Ariston ACO 27 RFFICondensingGas88.8%
Ariston ACO 32 MFFICondensingGas88.9%
Ariston ACO 32 RFFICondensingGas89.0%
Ariston ACO 35 HP MFFI ACO 35 HP MFFICondensingGas88.9%
Ariston Clas 21 FF SystemNon-CondensingGas80.4%
Ariston Clas 24 FFNon-CondensingGas80.3%
Ariston Clas 28 FF SystemNon-CondensingGas80.4%
Ariston Clas HE 18 SystemCondensingGas89.3%
Ariston Clas HE 24CondensingGas88.9%
Ariston Clas HE 24 SystemCondensingGas89.0%
Ariston Clas HE 30CondensingGas88.9%
Ariston Clas HE 38CondensingGas88.5%
Ariston Clas HE evo 24CondensingGas88.7%
Ariston Clas HE evo 30CondensingGas88.7%
Ariston Clas HE evo 38CondensingGas88.7%
Ariston Clas HE R 12CondensingGas89.1%
Ariston Clas HE R 18CondensingGas89.3%
Ariston Clas HE R 24CondensingGas89.0%
Ariston Clas HE System 30CondensingGas89.0%
Ariston Clas HE System evo 18CondensingGas88.8%
Ariston Clas HE System evo 24CondensingGas88.8%
Ariston Clas HE System evo 30CondensingGas88.8%
Ariston CLAS NET ONE 24CondensingGas89.4%
Ariston CLAS NET ONE 30CondensingGas89.4%
Ariston CLAS NET ONE 38CondensingGas89.4%
Ariston CLAS ONE 24CondensingGas89.4%
Ariston CLAS ONE 30CondensingGas89.4%
Ariston CLAS ONE 38CondensingGas89.4%
Ariston CLAS SYSTEM ONE 18CondensingGas89.4%
Ariston CLAS SYSTEM ONE 24CondensingGas89.5%
Ariston CLAS SYSTEM ONE 30CondensingGas89.5%
Ariston Combi A 24 MFFI Combi ACondensingGas89.0%
Ariston Combi A 30 MFFI Combi ACondensingGas89.7%
Ariston E-Combi 24CondensingGas88.9%
Ariston E-Combi 30CondensingGas88.9%
Ariston E-Combi 38CondensingGas88.5%
Ariston E-Combi evo 24CondensingGas88.7%
Ariston E-Combi evo 30CondensingGas88.7%
Ariston E-Combi evo 38CondensingGas88.7%
Ariston E-COMBI ONE 24CondensingGas89.4%
Ariston E-COMBI ONE 30CondensingGas89.4%
Ariston E-System 24CondensingGas89.0%
Ariston E-System 30CondensingGas89.0%
Ariston E-System evo 24CondensingGas88.8%
Ariston E-System evo 30CondensingGas88.8%
Ariston E-SYSTEM ONE 24CondensingGas89.5%
Ariston E-SYSTEM ONE 30CondensingGas89.5%
Ariston Ecocombi 27 MFFI microCONDENS SeriesCondensingLPG89.7%
Ariston Ecogenus 24 MFFICondensingGas87.2%
Ariston Ecogenus 24 MFFI Mk2CondensingGas88.2%
Ariston Ecogenus 24 RFFI SystemCondensingGas87.3%
Ariston Ecogenus 24 RFFI System Mk2CondensingGas88.3%
Ariston Ecosystem 27 RFFI microCONDENS SeriesCondensingGas88.8%
Ariston Eurocombi A/23 MFFINon-CondensingGas78.1%
Ariston Eurocombi A/27 MFFINon-CondensingGas78.9%
Ariston Excalibur 23 MFFI Excalibur 80 MFFINon-CondensingGas80.1%
Ariston Excalibur 27 MFFI Excalibur 100 MFFINon-CondensingGas79.4%
Ariston Genus 27 BFFI PlusNon-CondensingGas78.1%
Ariston Genus 27 BFFI Plus Mk2Non-CondensingGas80.0%
Ariston Genus 27 RFFI SystemNon-CondensingGas79.0%
Ariston Genus 30 MFFINon-CondensingGas79.3%
Ariston Genus HE 24CondensingGas88.9%
Ariston Genus HE 24 SystemCondensingGas89.0%
Ariston Genus HE 30CondensingGas88.9%
Ariston Genus HE 38CondensingGas88.5%
Ariston Genus HE System 30CondensingGas89.0%
Ariston Genus Plus 30 BFFINon-CondensingLPG81.0%
Ariston Intesa TP 23 MFFINon-CondensingGas80.2%
Ariston Intesa TP 30 MFFINon-CondensingGas79.9%
Ariston Microcombi 23 MFFINon-CondensingGas80.1%
Ariston Microcombi 27 MFFI Micro Combi SeriesNon-CondensingGas79.4%
Ariston Microcombi 27 MFFI MK2Non-CondensingLPG81.2%
Ariston Microgenus 23 MFFINon-CondensingGas80.3%
Ariston Microgenus 24 HE MFFICondensingGas86.6%
Ariston Microgenus 27 MFFINon-CondensingGas80.2%
Ariston Microgenus 28 HE MFFICondensingGas86.3%
Ariston Microgenus 32 HE MFFICondensingGas86.5%
Ariston Microgenus II 24 MFFINon-CondensingLPG82.0%
Ariston Microgenus II 28 MFFINon-CondensingLPG81.4%
Ariston Microgenus II 31 MFFINon-CondensingLPG81.7%
Ariston Microsystem 10 RFFINon-CondensingGas78.2%
Ariston Microsystem 15 RFFINon-CondensingGas79.9%
Ariston Microsystem 21 RFFINon-CondensingGas80.4%
Ariston Microsystem 28 RFFINon-CondensingGas80.3%
ATAG A200SCondensingGas89.4%
ATAG A200S OVCondensingGas89.4%
ATAG A203CCondensingGas89.3%
ATAG A320SCondensingGas89.5%
ATAG A320S XCondensingGas89.8%
ATAG A325CCondensingGas89.4%
ATAG A325C XCondensingGas89.7%
ATAG A325ECCondensingGas89.2%
ATAG A325EC XCondensingGas89.7%
ATAG Blauwe Engel SHR 15CondensingGas89.3%
ATAG Blauwe Engel SHR 24CondensingGas89.3%
ATAG Blauwe Engel SHR 24TCondensingGas89.2%
ATAG Blauwe Engel SHR 35CondensingGas89.0%
ATAG Blauwe Engel SHR 35TCondensingGas88.9%
ATAG Blauwe Engel SHR 51CondensingGas89.2%
ATAG Blauwe Engel SHR 51 LCondensingGas89.0%
ATAG Blauwe Engel SHR 51 TLCondensingGas89.0%
ATAG Blauwe Engel SHR 51TCondensingGas89.1%
ATAG Blauwe Engel SHR 60CondensingGas89.0%
ATAG E22CCondensingGas89.4%
ATAG E22SCondensingGas89.5%
ATAG E32CCondensingGas89.4%
ATAG E32SCondensingGas89.5%
ATAG iC Economiser 27CondensingGas89.7%
ATAG iC Economiser 35CondensingGas89.7%
ATAG iC Economiser 39CondensingGas89.7%
ATAG iC24CondensingGas89.7%
ATAG IC24LPGCondensingLPG90.7%
ATAG iC28CondensingGas89.7%
ATAG IC28LPGCondensingLPG90.7%
ATAG iC36CondensingGas89.7%
ATAG IC36LPGCondensingLPG90.8%
ATAG iC40CondensingGas89.7%
ATAG IC40LPGCondensingLPG90.8%
ATAG iR15CondensingGas89.8%
ATAG IR15LPGCondensingLPG90.8%
ATAG iR18CondensingGas89.8%
ATAG IR18LPGCondensingLPG90.8%
ATAG iR24CondensingGas89.8%
ATAG IR24LPGCondensingLPG90.8%
ATAG iR32CondensingGas89.8%
ATAG IR32LPGCondensingLPG90.9%
ATAG iR40CondensingGas89.8%
ATAG IR40LPGCondensingLPG90.8%
ATAG iS15CondensingGas89.8%
ATAG IS15LPGCondensingLPG90.8%
ATAG iS18CondensingGas89.8%
ATAG IS18LPGCondensingLPG90.8%
ATAG iS24CondensingGas89.8%
ATAG IS24LPGCondensingLPG90.8%
ATAG iS32CondensingGas89.8%
ATAG IS32LPGCondensingLPG90.9%
ATAG iS40CondensingGas89.8%
ATAG IS40LPGCondensingLPG90.8%
ATAG Premier E-SHR 24CondensingGas89.0%
ATAG Premier E-SHR 24TCondensingGas89.3%
ATAG Premier E-SHR 35CondensingGas89.0%
ATAG Premier E-SHR 35TCondensingGas88.9%
ATAG Premier E-SHR15CondensingGas89.3%
ATAG Q25CCondensingGas89.3%
ATAG Q25SCondensingGas89.6%
ATAG Q25SCCondensingGas89.6%
ATAG Q38CCondensingGas89.3%
ATAG Q38SCondensingGas89.4%
ATAG Q38SCCondensingGas89.4%
ATAG Q51CCondensingGas89.4%
ATAG Q51SCondensingGas89.5%
ATAG Q60SCondensingGas89.5%
ATAG XL70CondensingGas89.5%
Atlantic 2000 R22/22 OilCondensingOil91.0%
Atlantic 2000 R22/40 OilCondensingOil91.1%
Atlantic Boilers KDB 181 KCACondensingGas88.9%
Atlantic Boilers KDB 201 KCACondensingGas88.7%
Atlantic Boilers KDB 251 KCACondensingGas88.8%
Atlantic Boilers KDB 301 KCACondensingGas89.0%
Atlantic Boilers KDB-200NHCCondensingOil89.4%
Atlantic Boilers KDB-350NHCCondensingOil89.3%
Atmos Atmos Compact Boiler N30CCondensingGas89.4%
Atmos Atmos Compact Combi N30KCondensingGas89.3%
Atmos Atmos Compact System Boiler N30BCondensingGas89.4%
Atmos InterCombi HE32CondensingGas88.9%
Atmos Multi 24/80CondensingGas89.6%
Atmos Multi 24/80 PlusCondensingGas89.6%
Atmos Multi 32/80CondensingGas89.5%
Atmos Multi 32/80 PlusCondensingGas89.5%
Baxi 100 HECondensingGas89.6%
Baxi 100/2 HE PlusCondensingGas88.8%
Baxi 124 COMBICondensingGas89.1%
Baxi 128 COMBICondensingGas89.1%
Baxi 200 224 COMBICondensingGas89.0%
Baxi 200 228 COMBICondensingGas89.0%
Baxi 400 424 COMBICondensingGas89.0%
Baxi 400 428 COMBICondensingGas89.0%
Baxi 50 HE PlusCondensingGas89.4%
Baxi 624 CombiCondensingGas89.0%
Baxi 630 CombiCondensingGas89.0%
Baxi 80 HE PlusCondensingGas89.6%
Baxi Avanta 15h Heat OnlyCondensingGas88.9%
Baxi Avanta 18 h Heat OnlyCondensingGas89.2%
Baxi Avanta 18h Heat OnlyCondensingLPG90.3%
Baxi Avanta 24h Heat OnlyCondensingGas88.9%
Baxi Avanta 28c ExclusiveCondensingGas89.2%
Baxi Avanta 30h Heat OnlyCondensingGas88.9%
Baxi Avanta 35c ExclusiveCondensingGas89.6%
Baxi Avanta 39c ExclusiveCondensingGas89.8%
Baxi Avanta Plus 18s systemCondensingGas88.8%
Baxi Avanta Plus 24c CombiCondensingGas88.7%
Baxi Avanta Plus 24s SystemCondensingGas89.2%
Baxi Avanta Plus 28c CombiCondensingGas89.1%
Baxi Avanta Plus 30s systemCondensingGas88.9%
Baxi Avanta Plus 35c CombiCondensingGas89.5%
Baxi Avanta Plus 39c CombiCondensingGas89.7%
Baxi Bermuda 50/6 InsetNon-CondensingGas78.1%
Baxi Bermuda 51/5Non-CondensingGas78.0%
Baxi Bermuda BBU 15 HECondensingGas88.8%
Baxi Combi 100 HE PlusCondensingGas89.4%
Baxi Combi 105 eNon-CondensingGas78.5%
Baxi Combi 105 HECondensingLPG86.9%
Baxi Combi 105 HE ACondensingGas88.7%
Baxi Combi 133 HE PlusCondensingGas88.7%
Baxi Combi 80 eNon-CondensingGas78.6%
Baxi Combi 80 EcoNon-CondensingGas78.6%
Baxi Combi 80 HE PlusCondensingGas89.4%
Baxi Combi 80 MaxflueNon-CondensingGas78.5%
Baxi Combi Instant 105 eNon-CondensingGas78.5%
Baxi Combi Instant 105 HECondensingLPG86.9%
Baxi Combi Instant 80 eNon-CondensingGas78.6%
Baxi Combi Instant 80 HECondensingLPG86.8%
Baxi Duo-tec 2 Combi 24CondensingGas89.0%
Baxi Duo-tec 2 Combi 24 GACondensingGas89.0%
Baxi Duo-tec 2 Combi 28CondensingGas89.0%
Baxi Duo-tec 2 Combi 28 CompactCondensingGas89.0%
Baxi Duo-tec 2 Combi 28 GACondensingGas89.0%
Baxi Duo-tec 2 Combi 33 GACondensingGas89.0%
Baxi Duo-tec 2 Combi 40CondensingGas89.0%
Baxi Duo-tec 2 Combi 40 GACondensingGas89.0%
Baxi Duo-tec 24 Combi ErPCondensingGas88.6%
Baxi Duo-tec 28 Combi ErPCondensingGas88.6%
Baxi DUO-TEC 28 LPG COMBI ErPCondensingLPG89.6%
Baxi Duo-tec 33 Combi ErPCondensingGas88.5%
Baxi Duo-tec 40 Combi ErPCondensingGas88.5%
Baxi Duo-tec Combi 24 HECondensingGas88.6%
Baxi Duo-tec Combi 24 HE ACondensingGas89.0%
Baxi Duo-tec Combi 24 HE LPGCondensingLPG91.0%
Baxi Duo-tec Combi 28 HECondensingGas88.6%
Baxi Duo-tec Combi 28 HE ACondensingGas89.0%
Baxi Duo-tec Combi 28 HE LPGCondensingLPG91.0%
Baxi Duo-tec Combi 33 HECondensingGas88.5%
Baxi Duo-tec Combi 33 HE ACondensingGas88.9%
Baxi Duo-tec Combi 33 HE LPGCondensingLPG90.9%
Baxi Duo-tec Combi 40 HECondensingGas88.5%
Baxi Duo-tec Combi 40 HE ACondensingGas88.9%
Baxi Ecoblue + 24 Combi ErPCondensingGas89.1%
Baxi Ecoblue + 28 Combi ErPCondensingGas89.1%
Baxi Ecoblue + 33 Combi ErPCondensingGas89.1%
Baxi EcoBlue 12 Heat ErPCondensingGas89.2%
Baxi Ecoblue 12 SystemCondensingGas89.2%
Baxi Ecoblue 12 System ErPCondensingGas89.3%
Baxi EcoBlue 15 Heat ErPCondensingGas89.2%
Baxi Ecoblue 15 SystemCondensingGas89.1%
Baxi Ecoblue 15 System ErPCondensingGas89.2%
Baxi EcoBlue 18 Heat ErPCondensingGas89.2%
Baxi Ecoblue 18 SystemCondensingGas89.1%
Baxi EcoBlue 21 Heat ErPCondensingGas89.2%
Baxi Ecoblue 24 CombiCondensingGas89.0%
Baxi Ecoblue 24 Combi ErPCondensingGas89.1%
Baxi EcoBlue 24 Heat ErPCondensingGas89.1%
Baxi Ecoblue 24 SystemCondensingGas89.1%
Baxi Ecoblue 24 System ErPCondensingGas89.2%
Baxi Ecoblue 28 CombiCondensingGas89.0%
Baxi Ecoblue 28 Combi ErPCondensingGas89.1%
Baxi Ecoblue 28 SystemCondensingGas89.1%
Baxi Ecoblue 28 System ErPCondensingGas89.2%
Baxi Ecoblue 32 SystemCondensingGas89.1%
Baxi Ecoblue 32 System ErPCondensingGas89.2%
Baxi Ecoblue 33 CombiCondensingGas89.0%
Baxi EcoBlue Advance 13 Heat ErPCondensingGas89.2%
Baxi EcoBlue Advance 16 Heat ErPCondensingGas89.2%
Baxi EcoBlue Advance 19 Heat ErPCondensingGas89.2%
Baxi EcoBlue Advance 21 Heat ErPCondensingGas89.1%
Baxi Ecoblue Advance 24 CombiCondensingGas89.0%
Baxi Ecoblue Advance 24 Combi ErPDCondensingGas89.1%
Baxi EcoBlue Advance 25 Heat ErPCondensingGas89.1%
Baxi Ecoblue Advance 28 CombiCondensingGas89.0%
Baxi Ecoblue Advance 28 Combi ERPCondensingGas89.0%
Baxi Ecoblue Advance 28 Combi ErPDCondensingGas89.1%
Baxi EcoBlue Advance 30 Heat ErPCondensingGas89.1%
Baxi Ecoblue Advance 33 CombiCondensingGas89.0%
Baxi Ecoblue Advance 33 Combi ERPCondensingGas89.0%
Baxi Ecoblue Advance 33 Combi ErPDCondensingGas89.1%
Baxi Ecoblue Advance 40 CombiCondensingGas89.0%
Baxi Ecoblue Advance 40 Combi ErPDCondensingGas89.1%
Baxi EcoBlue Advance Heat 13CondensingGas89.2%
Baxi EcoBlue Advance Heat 16CondensingGas89.2%
Baxi EcoBlue Advance Heat 19CondensingGas89.2%
Baxi EcoBlue Advance Heat 25CondensingGas89.1%
Baxi EcoBlue Advance Heat 30CondensingGas89.1%
Baxi EcoBlue Heat 12CondensingGas89.2%
Baxi EcoBlue Heat 15CondensingGas89.2%
Baxi EcoBlue Heat 18CondensingGas89.2%
Baxi EcoBlue Heat 21CondensingGas89.2%
Baxi EcoBlue Heat 24CondensingGas89.1%
Baxi Ecoblue Plus 24 CombiCondensingGas89.0%
Baxi Ecoblue Plus 28 CombiCondensingGas89.0%
Baxi Ecoblue Plus 33 CombiCondensingGas89.0%
Baxi Ecoblue18 System ErPCondensingGas89.2%
Baxi Ecoblue33 Combi ErPCondensingGas89.1%
Baxi Heating Bahama 100Non-CondensingGas79.5%
Baxi Heating BarcelonaCondensingGas88.3%
Baxi Heating Bermuda 25/1Non-CondensingGas65.0%
Baxi Heating Bermuda 401Non-CondensingGas65.0%
Baxi Heating Bermuda 45/3ENon-CondensingGas65.0%
Baxi Heating Bermuda 45/3MNon-CondensingGas65.0%
Baxi Heating Bermuda 45/4ENon-CondensingGas76.8%
Baxi Heating Bermuda 45/4MNon-CondensingGas72.7%
Baxi Heating Bermuda 551Non-CondensingGas65.0%
Baxi Heating Bermuda 552Non-CondensingGas65.0%
Baxi Heating Bermuda 57/3ENon-CondensingGas65.0%
Baxi Heating Bermuda 57/3MNon-CondensingGas65.0%
Baxi Heating Bermuda 57/4ENon-CondensingGas75.8%
Baxi Heating Bermuda 57/4MNon-CondensingGas71.8%
Baxi Heating Bermuda Inset 2 50/4Non-CondensingGas72.0%
Baxi Heating Boston 2 40 OFNon-CondensingGas55.0%
Baxi Heating Boston 2 40 RSNon-CondensingGas55.0%
Baxi Heating Boston 2 50 OFNon-CondensingGas55.0%
Baxi Heating Boston 2 50 RSNon-CondensingGas55.0%
Baxi Heating Boston 2 60 OFNon-CondensingGas55.0%
Baxi Heating Boston 2 60 RSNon-CondensingGas55.0%
Baxi Heating Boston 2 70 OFNon-CondensingGas55.0%
Baxi Heating Boston 2 70 RSNon-CondensingGas55.0%
Baxi Heating Boston 2 80 OFNon-CondensingGas55.0%
Baxi Heating Boston 2 80 RSNon-CondensingGas55.0%
Baxi Heating Boston 40 OFNon-CondensingGas55.0%
Baxi Heating Boston 40 RSNon-CondensingGas55.0%
Baxi Heating Boston 50 OFNon-CondensingGas55.0%
Baxi Heating Boston 50 RSNon-CondensingGas55.0%
Baxi Heating Boston 60 OFNon-CondensingGas55.0%
Baxi Heating Boston 60 RSNon-CondensingGas55.0%
Baxi Heating Boston 70 OFNon-CondensingGas55.0%
Baxi Heating Boston 70 RSNon-CondensingGas55.0%
Baxi Heating Boston 80 OFNon-CondensingGas55.0%
Baxi Heating Boston 80 RSNon-CondensingGas55.0%
Baxi Heating FF40 from PottertonNon-CondensingGas71.8%
Baxi Heating FF50 from PottertonNon-CondensingGas75.4%
Baxi Heating FF60 from PottertonNon-CondensingGas75.1%
Baxi Heating FF80 from PottertonNon-CondensingGas74.4%
Baxi Heating Genesis 80Non-CondensingGas70.0%
Baxi Heating Genesis 96Non-CondensingGas70.0%
Baxi Heating Solo 2 30 PFNon-CondensingGas68.0%
Baxi Heating Solo 2 30 RSNon-CondensingGas65.0%
Baxi Heating Solo 2 40 PFNon-CondensingGas68.0%
Baxi Heating Solo 2 40 RSNon-CondensingGas65.0%
Baxi Heating Solo 2 50 PFNon-CondensingGas68.0%
Baxi Heating Solo 2 50 RSNon-CondensingGas65.0%
Baxi Heating Solo 2 60 PFNon-CondensingGas68.0%
Baxi Heating Solo 2 60 RSNon-CondensingGas65.0%
Baxi Heating Solo 2 70 PFNon-CondensingGas68.0%
Baxi Heating Solo 2 80 PFNon-CondensingGas68.0%
Baxi Heating Solo 20/4 RSNon-CondensingGas65.0%
Baxi Heating Solo 20/4 RS SSNon-CondensingGas65.0%
Baxi Heating Solo 30/4 RSNon-CondensingGas65.0%
Baxi Heating Solo 30/4 RS SSNon-CondensingGas65.0%
Baxi Heating Solo 40/4 RSNon-CondensingGas65.0%
Baxi Heating Solo 40/4 RS SSNon-CondensingGas65.0%
Baxi Heating Solo 50/4 RSNon-CondensingGas65.0%
Baxi Heating Solo 50/4 RS SSNon-CondensingGas65.0%
Baxi Heating Solo 60/4 RSNon-CondensingGas65.0%
Baxi Heating Solo 60/4 RS SSNon-CondensingGas65.0%
Baxi Heating Solo PF 3 30Non-CondensingGas78.8%
Baxi Heating Solo PF 3 40Non-CondensingGas77.8%
Baxi Heating Solo PF 3 50Non-CondensingGas76.7%
Baxi Heating Solo PF 3 60Non-CondensingGas77.8%
Baxi Heating Solo PF 3 70Non-CondensingGas77.7%
Baxi Heating Solo PF 3 80Non-CondensingGas77.8%
Baxi Heating Solo WM 30/4 PFNon-CondensingGas68.0%
Baxi Heating Solo WM 40/4 PFNon-CondensingGas68.0%
Baxi Heating Solo WM 50/4 PFNon-CondensingGas68.0%
Baxi Heating Solo WM 70/4 PFNon-CondensingGas68.0%
Baxi Heating Wm 20/3rsNon-CondensingGas65.0%
Baxi Heating Wm 281rsNon-CondensingGas65.0%
Baxi Heating Wm 282rsNon-CondensingGas65.0%
Baxi Heating Wm 38/3Non-CondensingGas65.0%
Baxi Heating Wm 381rsNon-CondensingGas65.0%
Baxi Heating Wm 382rsNon-CondensingGas65.0%
Baxi Heating Wm 40/3ofNon-CondensingGas65.0%
Baxi Heating Wm 401ofNon-CondensingGas65.0%
Baxi Heating Wm 402ofNon-CondensingGas65.0%
Baxi Heating Wm 51/3Non-CondensingGas65.0%
Baxi Heating Wm 511rsNon-CondensingGas65.0%
Baxi Heating Wm 512rsNon-CondensingGas65.0%
Baxi Heating Wm 532rsNon-CondensingGas65.0%
Baxi Heating Wm 55/3ofNon-CondensingGas65.0%
Baxi Heating Wm 551ofNon-CondensingGas65.0%
Baxi Heating Wm 552ofNon-CondensingGas65.0%
Baxi Heating Wm 60/3rsNon-CondensingGas65.0%
Baxi MainEco 15 Heat ErPCondensingGas89.2%
Baxi MainEco 18 Heat ErPCondensingGas89.2%
Baxi MainEco 24 Heat ErPCondensingGas89.1%
Baxi MainEco Combi 24CondensingGas89.3%
Baxi MainEco Combi 28CondensingGas89.2%
Baxi MainEco Combi 35CondensingGas89.0%
Baxi MainEco Heat 15CondensingGas89.2%
Baxi MainEco Heat 18CondensingGas89.2%
Baxi MainEco Heat 24CondensingGas89.1%
Baxi MainEco System 18CondensingGas89.4%
Baxi MainEco System 24CondensingGas89.3%
Baxi Maxflow Combi FSNon-CondensingGas78.9%
Baxi Maxflow Combi WMNon-CondensingGas79.0%
Baxi Megaflo 15 System ErPCondensingGas88.7%
Baxi Megaflo 15 System IE ErPCondensingGas88.7%
Baxi Megaflo 18 System ErPCondensingGas88.7%
Baxi Megaflo 18 System IE ErPCondensingGas88.7%
Baxi Megaflo 2 System 12 Compact GACondensingGas89.2%
Baxi Megaflo 2 System 15 Compact GACondensingGas89.1%
Baxi Megaflo 2 System 18 Compact GACondensingGas88.9%
Baxi Megaflo 2 System 24 Compact GACondensingGas89.1%
Baxi Megaflo 2 System 28 Compact GACondensingGas89.1%
Baxi Megaflo 2 System 32 Compact GACondensingGas89.1%
Baxi Megaflo 24 System ErPCondensingGas88.7%
Baxi Megaflo 24 System IE ErPCondensingGas88.7%
Baxi Megaflo 28 System ErPCondensingGas88.6%
Baxi Megaflo 32 System ErPCondensingGas88.6%
Baxi Megaflo System 15 HECondensingGas88.7%
Baxi Megaflo System 15 HE ACondensingGas89.0%
Baxi Megaflo System 18 HECondensingGas88.7%
Baxi Megaflo System 18 HE ACondensingGas89.0%
Baxi Megaflo System 18 HE LPGCondensingLPG91.1%
Baxi Megaflo System 24 HECondensingGas88.7%
Baxi Megaflo System 24 HE ACondensingGas89.0%
Baxi Megaflo System 28 HECondensingGas88.6%
Baxi Megaflo System 28 HE ACondensingGas89.0%
Baxi Megaflo System 28 HE LPGCondensingLPG91.0%
Baxi Megaflo System 32 HECondensingGas88.6%
Baxi Megaflo System 32 HE ACondensingGas89.0%
Baxi Megaflo System 32 HE LPGCondensingLPG91.0%
Baxi Megaflow 2 System 24 CompactCondensingGas89.1%
Baxi Neta-tec Combi 24 GACondensingGas89.0%
Baxi Neta-tec Combi 28 GACondensingGas89.0%
Baxi Neta-tec Combi 33 GACondensingGas89.0%
Baxi Neta-tec Plus 24 GACondensingGas89.0%
Baxi Neta-tec Plus 28 GACondensingGas89.0%
Baxi Neta-tec Plus 33 GACondensingGas89.0%
Baxi Platinum 15 HECondensingGas89.4%
Baxi Platinum 2 Combi 28 GACondensingGas89.0%
Baxi Platinum 2 Combi 33 GACondensingGas89.0%
Baxi Platinum 2 Combi 40 GACondensingGas89.0%
Baxi Platinum 24 Combi ErPCondensingGas88.6%
Baxi Platinum 24 HECondensingGas88.6%
Baxi Platinum 28 Combi ErPCondensingGas88.6%
Baxi Platinum 28 HECondensingGas88.6%
Baxi Platinum 33 Combi ErPCondensingGas88.5%
Baxi Platinum 33 HECondensingGas88.5%
Baxi Platinum 40 Combi ErPCondensingGas88.5%
Baxi Platinum Combi 24 HECondensingGas88.6%
Baxi Platinum Combi 24 HE ACondensingGas89.0%
Baxi Platinum Combi 28 HECondensingGas88.6%
Baxi Platinum Combi 28 HE ACondensingGas89.0%
Baxi Platinum Combi 33 HECondensingGas88.5%
Baxi Platinum Combi 33 HE ACondensingGas88.9%
Baxi Platinum Combi 40 HECondensingGas88.5%
Baxi Platinum Combi 40 HE ACondensingGas88.9%
Baxi Platinum System 24 HECondensingGas88.7%
Baxi Potterton Baxi Bermuda Inset 2 50/4ENon-CondensingGas77.5%
Baxi Potterton Baxi Bermuda Inset 3 50/5Non-CondensingGas77.0%
Baxi Potterton Baxi Combi 130 HECondensingGas88.7%
Baxi Potterton Potterton Promax 15 HECondensingGas89.4%
Baxi Potterton Potterton Promax 24 HECondensingGas89.5%
Baxi Potterton Potterton Promax System HECondensingGas89.6%
Baxi Precision +CondensingGas89.2%
Baxi Precision+ ErPCondensingGas89.2%
Baxi Solo 12 HECondensingGas88.7%
Baxi Solo 12 HE ACondensingGas88.7%
Baxi Solo 12 Heat IE ErPCondensingGas88.7%
Baxi Solo 15 HECondensingGas89.4%
Baxi Solo 15 HE ACondensingGas89.4%
Baxi Solo 15 Heat IE ErPCondensingGas89.4%
Baxi Solo 18 HECondensingGas88.7%
Baxi Solo 18 HE ACondensingGas88.7%
Baxi Solo 18 Heat IE ErPCondensingGas88.7%
Baxi Solo 24 HECondensingGas88.8%
Baxi Solo 24 HE ACondensingGas88.8%
Baxi Solo 24 Heat IE ErPCondensingGas88.8%
Baxi Solo 3 PFL 30Non-CondensingGas79.4%
Baxi Solo 3 PFL 40Non-CondensingGas78.4%
Baxi Solo 3 PFL 50Non-CondensingGas78.0%
Baxi Solo 3 PFL 60Non-CondensingGas78.5%
Baxi Solo 3 PFL 70Non-CondensingGas78.2%
Baxi Solo 3 PFL 80Non-CondensingGas79.1%
Baxi Solo 3 PFL System 30Non-CondensingGas79.4%
Baxi Solo 3 PFL System 40Non-CondensingGas78.4%
Baxi Solo 3 PFL System 50Non-CondensingGas78.0%
Baxi Solo 3 PFL System 60Non-CondensingGas78.5%
Baxi Solo 3 PFL System 70Non-CondensingGas78.2%
Baxi Solo 3 PFL System 80Non-CondensingGas78.7%
Baxi Solo 30 HECondensingGas88.8%
Baxi Solo 30 HE ACondensingGas88.8%
Baxi Solo 30 Heat IE ErPCondensingGas88.8%
Baxi System 100 HE PlusCondensingGas88.8%
Baxi System 35/60Non-CondensingGas78.8%
Baxi System 60/100Non-CondensingGas78.2%
Beeston Solution 2000 S-HR15CondensingGas89.3%
Beeston Solution 2000 S-HR24CondensingGas89.3%
Beeston Solution 2000 S-HR24TCondensingGas89.3%
Beeston Solution 2000 S-HR35CondensingGas89.0%
Beeston Solution 2000 S-HR35TCondensingGas88.9%
Beeston Solution 2000 S-HR51CondensingGas89.2%
Beeston Solution 2000 S-HR51TCondensingGas89.1%
Beeston Solution 2000 S-HR60CondensingGas89.0%
Benson Heating Halstead Jetstreme 125Non-CondensingOil82.2%
Benson Heating Halstead Jetstreme 55Non-CondensingOil84.2%
Benson Heating Halstead Jetstreme 80Non-CondensingOil82.7%
Biasi 24SNon-CondensingGas78.3%
Biasi 24SRNon-CondensingGas78.4%
Biasi 28SNon-CondensingGas78.5%
Biasi Activ A 12OVCondensingGas88.4%
Biasi Activ A 15OVCondensingGas88.4%
Biasi Activ A 20OVCondensingGas88.9%
Biasi Activ A 25OVCondensingGas88.7%
Biasi Activ A Plus 16SCondensingLPG89.7%
Biasi Activ A Plus 25SCondensingLPG89.8%
Biasi Activ A Plus 30CCondensingLPG89.6%
Biasi Activ A Plus 35CCondensingLPG89.6%
Biasi ActivA 18SCondensingGas88.7%
Biasi ActivA 25CCondensingGas88.8%
Biasi ActivA 25SCondensingGas88.7%
Biasi ActivA 30CCondensingGas88.6%
Biasi ActivA 30SCondensingGas88.9%
Biasi ActivA 35CCondensingGas88.8%
Biasi ActivA Plus 25CCondensingGas88.7%
Biasi ADVANCE 25CCondensingGas88.5%
Biasi ADVANCE 25SCondensingGas88.7%
Biasi ADVANCE 30CCondensingGas88.6%
Biasi ADVANCE 30SCondensingGas88.7%
Biasi ADVANCE 35CCondensingGas88.6%
Biasi Advance Plus 16SCondensingGas88.7%
Biasi Advance Plus 16S ErPCondensingGas88.7%
Biasi Advance Plus 25CCondensingGas88.7%
Biasi Advance Plus 25C ErPCondensingGas88.7%
Biasi Advance Plus 25SCondensingGas88.8%
Biasi Advance Plus 25S ErPCondensingGas88.8%
Biasi Advance Plus 30CCondensingGas88.6%
Biasi Advance Plus 30C ErPCondensingGas88.6%
Biasi Advance Plus 30SCondensingGas88.7%
Biasi Advance Plus 30S ErPCondensingGas88.7%
Biasi Advance Plus 35CCondensingGas88.6%
Biasi Advance Plus 35C ErPCondensingGas88.6%
Biasi ALNOVIA 18RCondensingGas89.1%
Biasi ALNOVIA 18SCondensingGas89.0%
Biasi ALNOVIA 28RCondensingGas89.2%
Biasi ALNOVIA 28SCondensingGas89.1%
Biasi Garda HE M96.24SM/BCondensingLPG86.8%
Biasi Garda HE M96.24SM/B2CondensingGas86.4%
Biasi Garda HE M96.28SM/BCondensingLPG86.7%
Biasi Garda HE M96.28SM/B2CondensingGas86.5%
Biasi Garda HE M96.28SM/D2CondensingGas86.5%
Biasi Garda HE Silver M96.24SM/DCondensingLPG86.8%
Biasi Garda HE Silver M96.24SM/D2CondensingGas86.4%
Biasi Garda HE Silver M96.28SM/DCondensingLPG86.7%
Biasi Garda M90F. 24SNon-CondensingGas78.2%
Biasi Garda M90F. 24SRNon-CondensingGas78.3%
Biasi Garda M90F. 28SNon-CondensingGas78.3%
Biasi Garda M90F. 28SRNon-CondensingGas78.4%
Biasi Garda M90F. 32SNon-CondensingGas78.3%
Biasi Garda Plus HE M110.24SM/ECondensingGas88.4%
Biasi Garda Plus HE M110.32SM/ECondensingGas88.4%
Biasi Garda Plus HE M110B.24SM/ECondensingLPG90.1%
Biasi Garda Plus HE M110B.32SM/ECondensingLPG89.5%
Biasi Garda Plus HE Silver M110.24SM/DCondensingGas88.4%
Biasi Garda Plus HE Silver M110.32SM/DCondensingGas88.4%
Biasi Inovia 25CCondensingGas88.7%
Biasi Inovia 25C ErPCondensingGas88.7%
Biasi Inovia 25SCondensingGas88.8%
Biasi Inovia 25S ErPCondensingGas88.8%
Biasi Inovia 30CCondensingGas88.6%
Biasi Inovia 30C ErPCondensingGas88.6%
Biasi Inovia 35CCondensingGas88.6%
Biasi Inovia 35C ErPCondensingGas88.6%
Biasi Parva HE Combi M96.24SM/PCondensingLPG86.8%
Biasi Parva HE Combi M96.28SM/PCondensingLPG86.9%
Biasi Parva HE Combi M96.32SM/PCondensingLPG88.0%
Biasi Parva HE System M96.28SR/PCondensingLPG87.0%
Biasi Parva HE System M96.32SR/PCondensingLPG88.1%
Biasi Parva HE Systen M96.28SR/PCondensingGas86.6%
Biasi Parva M90 24SNon-CondensingGas78.2%
Biasi Parva M90 28SNon-CondensingGas78.3%
Biasi Riva 18 OVCondensingGas89.1%
Biasi Riva 24SNon-CondensingGas78.3%
Biasi Riva 24SRNon-CondensingGas78.4%
Biasi Riva 28SNon-CondensingGas78.5%
Biasi Riva 30 OVCondensingGas89.3%
Biasi Riva Advance HE M110.24SM/CCondensingGas88.4%
Biasi Riva Advance HE M110.32SM/CCondensingGas88.4%
Biasi Riva Advance HE M110B.24SM/CCondensingLPG90.1%
Biasi Riva Advance HE M110B.24SR/CCondensingGas89.2%
Biasi Riva Advance HE M110B.32SM/CCondensingLPG89.5%
Biasi Riva Compact HE M96.24SM/CCondensingLPG86.8%
Biasi Riva Compact HE M96.24SM/C2CondensingGas86.4%
Biasi Riva Compact HE M96.28SM/CCondensingLPG86.7%
Biasi Riva Compact HE M96.28SM/C2CondensingGas86.5%
Biasi Riva Compact HE M96.28SR/CCondensingLPG86.8%
Biasi Riva Compact HE M96.28SR/C2CondensingGas86.6%
Biasi Riva Compact HE M96.32SM/C2CondensingGas86.1%
Biasi Riva Compact M90E. 24SNon-CondensingLPG80.0%
Biasi Riva Compact M90E. 28SNon-CondensingLPG80.1%
Biasi Riva Compact M90E. 32SNon-CondensingGas78.3%
Biasi Riva Compact M90E.24SNon-CondensingGas78.2%
Biasi Riva Compact M90E.28SNon-CondensingGas78.3%
Biasi Riva Plus HE 24C ErPCondensingGas88.0%
Biasi Riva Plus HE 24S ErPCondensingGas88.1%
Biasi Riva Plus HE 28C ErPCondensingGas88.0%
Biasi Riva Plus HE 28S ErPCondensingGas88.1%
Biasi Riva Plus HE M296.24SM/CCondensingGas88.0%
Biasi Riva Plus HE M296.24SR/CCondensingGas88.1%
Biasi Riva Plus HE M296.28SM/CCondensingGas88.0%
Biasi Riva Plus HE M296.28SR/CCondensingGas88.1%
Biasi Riva Plus M90D. 24SNon-CondensingLPG80.0%
Biasi Riva Plus M90D. 24SRNon-CondensingLPG80.1%
Biasi Riva Plus M90D. 28SNon-CondensingLPG80.1%
Biasi Riva Plus M90D. 28SRNon-CondensingLPG80.2%
Biasi Riva Plus M90D.24SNon-CondensingGas78.2%
Biasi Riva Plus M90D.24SRNon-CondensingGas78.3%
Biasi Riva Plus M90D.28SNon-CondensingGas78.3%
Biasi Riva Plus M90D.28SRNon-CondensingGas78.4%
Biasi Savio Gaia 424SNon-CondensingGas78.3%
Biasi Savio Gaia 428SNon-CondensingGas78.5%
Biasi Savio Knightsbridge 424SNon-CondensingGas78.3%
Biasi Savio Knightsbridge 428SNon-CondensingGas78.5%
Boulter Bonus 40/65Non-CondensingOil85.5%
Boulter Bonus 65/90ANon-CondensingOil85.0%
Boulter Bonus 65/95Non-CondensingOil83.5%
Boulter Bonus Combi 90ANon-CondensingOil82.5%
Boulter Buderus 500 – 24SCondensingGas89.7%
Boulter Buderus 500-24/CCondensingGas89.6%
Boulter Buderus 500-24/CPCondensingLPG90.6%
Boulter Buderus 500-24SPCondensingLPG90.7%
Boulter Buderus 500-28CCondensingGas89.6%
Boulter Buderus 500-28CPCondensingLPG90.6%
Boulter Buderus 600-11RPCondensingLPG90.3%
Boulter Buderus 600-11SPCondensingLPG90.8%
Boulter Buderus 600-19RPCondensingLPG90.3%
Boulter Buderus 600-19SPCondensingLPG90.3%
Boulter Buderus 600-24CPCondensingLPG90.2%
Boulter Buderus 600-24RPCondensingLPG90.2%
Boulter Buderus 600-24SPCondensingLPG90.2%
Boulter Buderus 600/11RCondensingGas89.3%
Boulter Buderus 600/11SCondensingGas89.3%
Boulter Buderus 600/19RCondensingGas89.3%
Boulter Buderus 600/19SCondensingGas89.3%
Boulter Buderus 600/24CCondensingGas89.1%
Boulter Buderus 600/24RCondensingGas89.2%
Boulter Buderus 600/24SCondensingGas89.2%
Boulter Buderus 800-24PCondensingLPG89.5%
Boulter Buderus 800-24T25/HCondensingGas88.9%
Boulter Buderus 800-24T25/VCondensingGas88.9%
Boulter Buderus 800-29PCondensingLPG89.6%
Boulter Buderus 800-29T25/HCondensingGas88.9%
Boulter Buderus 800-29T25/VCondensingGas88.9%
Boulter Buderus 800-43PCondensingLPG89.6%
Boulter Buderus 800/24CondensingGas88.5%
Boulter Buderus 800/29CondensingGas88.6%
Boulter Buderus 800/43CondensingGas88.6%
Boulter Buderus 800/60CondensingGas88.6%
Boulter Camray 15/19 ExternalNon-CondensingOil80.5%
Boulter Camray 15/21 ExternalNon-CondensingOil70.0%
Boulter Camray 15/21 InternalNon-CondensingOil70.0%
Boulter Camray 3 135/175Non-CondensingOil85.1%
Boulter Camray 3 135/175 BNon-CondensingOil70.0%
Boulter Camray 3 135/175 FNon-CondensingOil70.0%
Boulter Camray 3 40/50Non-CondensingOil70.0%
Boulter Camray 3 50/70Non-CondensingOil70.0%
Boulter Camray 3 90/130 BNon-CondensingOil70.0%
Boulter Camray 3 90/130 FNon-CondensingOil70.0%
Boulter Camray 5 100/130Non-CondensingOil80.1%
Boulter Camray 5 100/140Non-CondensingOil80.1%
Boulter Camray 5 100/140 SystemNon-CondensingOil80.1%
Boulter Camray 5 100/140 UtilityNon-CondensingOil80.1%
Boulter Camray 5 150/200Non-CondensingOil83.6%
Boulter Camray 5 150/200GNon-CondensingOil85.5%
Boulter Camray 5 150/200KNon-CondensingOil84.2%
Boulter Camray 5 200/240Non-CondensingOil84.4%
Boulter Camray 5 40/65Non-CondensingOil85.5%
Boulter Camray 5 40/65 EXNon-CondensingOil85.5%
Boulter Camray 5 65/90 EXNon-CondensingOil84.7%
Boulter Camray 5 65/90ANon-CondensingOil85.0%
Boulter Camray 5 65/90A SystemNon-CondensingOil85.0%
Boulter Camray 5 65/90A UtilityNon-CondensingOil85.0%
Boulter Camray 5 65/95Non-CondensingOil83.5%
Boulter Camray 5 95/130ANon-CondensingOil85.3%
Boulter Camray 5 95/130A SystemNon-CondensingOil85.3%
Boulter Camray 5 95/130A UtilityNon-CondensingOil85.3%
Boulter Camray 5 CombiNon-CondensingOil81.8%
Boulter Camray 5 Combi 55Non-CondensingOil83.8%
Boulter Camray 5 Combi 70ANon-CondensingOil83.3%
Boulter Camray 5 Combi 90ANon-CondensingOil83.3%
Boulter Camray 5 Combi 90BENon-CondensingOil83.0%
Boulter Camray 5 System 100/130 SystemNon-CondensingOil80.1%
Boulter Camray 5 System 40/65 SystemNon-CondensingOil85.5%
Boulter Camray 5 System 65/95 SystemNon-CondensingOil83.5%
Boulter Camray 5 U 40/65 SNon-CondensingOil85.5%
Boulter Camray 5 U 65/90 SBNon-CondensingOil84.2%
Boulter Camray 5 U 95 / 130 SANon-CondensingOil85.3%
Boulter Camray 5 Utility 100/130 UtilityNon-CondensingOil80.1%
Boulter Camray 5 Utility 40/65 UtilityNon-CondensingOil85.5%
Boulter Camray 5 Utility 65/95 UtilityNon-CondensingOil83.5%
Boulter Camray 5 Wall Hung 50/70 ExternalNon-CondensingOil85.3%
Boulter Camray 5 Wall Hung 50/70 InternalNon-CondensingOil85.3%
Boulter Camray Combi 90/130 BNon-CondensingOil70.0%
Boulter Camray Combi 90/130 FNon-CondensingOil70.0%
Boulter Camray Combi plusNon-CondensingOil78.5%
Boulter Camray Compact 50/70 BNon-CondensingOil70.0%
Boulter Camray Compact 50/70 FNon-CondensingOil70.0%
Boulter Camray Quartet 110/150 BNon-CondensingOil70.0%
Boulter Camray Quartet 110/150 FNon-CondensingOil70.0%
Boulter Camray Quartet 40/60 BNon-CondensingOil70.0%
Boulter Camray Quartet 40/60 FNon-CondensingOil70.0%
Boulter Camray Quartet 60/80 BNon-CondensingOil70.0%
Boulter Camray Quartet 60/80 FNon-CondensingOil70.0%
Boulter Camray Quartet 90/110 BNon-CondensingOil70.0%
Boulter Camray Quartet 90/110 FNon-CondensingOil70.0%
Boulter Camray Utility 110/150 BNon-CondensingOil70.0%
Boulter Camray Utility 110/150 FNon-CondensingOil70.0%
Boulter Camray Utility 40/60 BNon-CondensingOil70.0%
Boulter Camray Utility 40/60 FNon-CondensingOil70.0%
Boulter Camray Utility 60/80 BNon-CondensingOil70.0%
Boulter Camray Utility 60/80 FNon-CondensingOil70.0%
Boulter Camray Utility 90/110 BNon-CondensingOil70.0%
Boulter Camray Utility 90/110 FNon-CondensingOil70.0%
Boulter Centurion 2.5Non-CondensingGas76.6%
Boulter Centurion 3.5Non-CondensingGas77.0%
Boulter Classic 135/165Non-CondensingOil84.1%
Boulter Classic 135/165ANon-CondensingOil84.6%
Boulter Classic 50/70Non-CondensingOil79.5%
Boulter Classic 50/70 ANon-CondensingOil85.0%
Boulter Classic 50/70 A SystemNon-CondensingOil85.0%
Boulter Classic 70/90Non-CondensingOil80.3%
Boulter Classic 70/90ANon-CondensingOil84.7%
Boulter Classic 70/90A SystemNon-CondensingOil84.7%
Boulter Classic 95/130Non-CondensingOil85.5%
Boulter Classic 95/130 SystemNon-CondensingOil85.5%
Boulter Compact 50/70Non-CondensingOil81.6%
Boulter Eco-System 12/19Non-CondensingOil85.5%
Boulter Eco-System 19/26Non-CondensingOil84.2%
Boulter Economy 130Non-CondensingOil70.0%
Boulter Economy 50/70Non-CondensingOil70.0%
Boulter Economy 70/90Non-CondensingOil70.0%
Boulter Economy 90Non-CondensingOil70.0%
Boulter Pathfinder C2/10A (Gas Oil)Non-CondensingOil84.9%
Boulter Pathfinder C2/10A (Kerosene)Non-CondensingOil84.7%
Boulter Pathfinder C2/6A (Gas Oil)Non-CondensingOil84.2%
Boulter Pathfinder C2/6A (Kerosene)Non-CondensingOil84.6%
Boulter Pathfinder C2/7A (Gas Oil)Non-CondensingOil84.3%
Boulter Pathfinder C2/7A (Kerosene)Non-CondensingOil84.5%
Boulter Pathfinder C2/8A (Gas Oil)Non-CondensingOil84.4%
Boulter Pathfinder C2/8A (Kerosene)Non-CondensingOil84.5%
Boulter Pathfinder C2/9A (Gas Oil)Non-CondensingOil84.6%
Boulter Pathfinder C2/9A (Kerosene)Non-CondensingOil84.6%
Boulter Pathfinder GA 36 kWNon-CondensingGas79.3%
Boulter Pathfinder GA 48 kWNon-CondensingGas79.6%
Boulter Pathfinder GA 60kWNon-CondensingGas79.6%
Boulter Pathfinder GA 70kWNon-CondensingGas79.5%
Boxer C24 24kW Combi BoilerNon-CondensingGas78.9%
Boxer C28 28kW Combi BoilerNon-CondensingGas78.9%
British / Scottish Gas RD1 3100Non-CondensingGas78.0%
British / Scottish Gas RD1 330Non-CondensingGas79.4%
British / Scottish Gas RD1 340Non-CondensingGas78.6%
British / Scottish Gas RD1 350Non-CondensingGas79.6%
British / Scottish Gas RD1 360Non-CondensingGas78.3%
British / Scottish Gas RD1 370Non-CondensingGas78.5%
British / Scottish Gas RD1 380Non-CondensingGas78.1%
British / Scottish Gas RD109Non-CondensingGas79.4%
British / Scottish Gas RD109 SilverNon-CondensingGas79.4%
British / Scottish Gas RD112Non-CondensingGas78.6%
British / Scottish Gas RD112 SilverNon-CondensingGas78.6%
British / Scottish Gas RD115Non-CondensingGas79.6%
British / Scottish Gas RD115 SilverNon-CondensingGas79.6%
British / Scottish Gas RD118Non-CondensingGas78.3%
British / Scottish Gas RD118 SilverNon-CondensingGas78.3%
British / Scottish Gas RD121Non-CondensingGas78.5%
British / Scottish Gas RD121 SilverNon-CondensingGas78.5%
British / Scottish Gas RD124Non-CondensingGas78.1%
British / Scottish Gas RD124 SilverNon-CondensingGas78.1%
British / Scottish Gas RD130Non-CondensingGas78.0%
British / Scottish Gas RD130 SilverNon-CondensingGas78.0%
British / Scottish Gas RD2 4100Non-CondensingGas78.9%
British / Scottish Gas RD2 4125Non-CondensingGas78.5%
British / Scottish Gas RD2 440Non-CondensingGas78.3%
British / Scottish Gas RD2 450Non-CondensingGas79.0%
British / Scottish Gas RD2 460Non-CondensingGas79.2%
British / Scottish Gas RD2 470Non-CondensingGas79.9%
British / Scottish Gas RD2 480Non-CondensingGas79.7%
British Gas 330CondensingGas89.7%
British Gas 330+CondensingGas88.7%
British Gas 430CondensingGas89.5%
British Gas 430 LPGCondensingLPG90.5%
British Gas 430/ICondensingGas89.5%
British Gas 532CondensingGas89.4%
British Gas 532 LPGCondensingLPG90.4%
British Gas 532/ICondensingGas89.4%
British Gas 535/iCondensingLPG90.1%
British Gas 537CondensingGas89.4%
British Gas 537 LPGCondensingLPG90.4%
British Gas 537/ICondensingGas89.4%
British Gas 539/iCondensingLPG90.0%
British Gas 542CondensingGas89.4%
British Gas 542 LPGCondensingLPG90.4%
British Gas 542/ICondensingGas89.4%
British Gas RD 428CondensingLPG89.8%
British Gas RD 428 SystemCondensingGas88.8%
British Gas RD 430i SystemCondensingGas88.8%
British Gas RD 532 CombiCondensingGas89.5%
British Gas RD 532i CombiCondensingGas89.5%
British Gas RD 537i CombiCondensingGas89.5%
British Gas RD 542i CombiCondensingGas88.9%
British Gas RD628 RSFNon-CondensingGas78.4%
British Gas/Scottish Gas C1 RSFNon-CondensingGas78.2%
Broag Remeha Avanta Plus 24sCondensingGas89.2%
Broag Remeha Avanta Plus 28cCondensingGas89.1%
Broag Remeha Avanta Plus 35cCondensingGas89.5%
Broag Remeha Avanta Plus 39cCondensingGas89.7%
Broag Remeha Quinta 45CondensingGas88.7%
Broag Remeha Quinta 65CondensingGas89.3%
Broag Remeha Quinta Quinta 30CondensingGas89.2%
Broag Remeha Selecta Selecta CombiCondensingGas89.3%
Broag Remeha Selecta Selecta SystemCondensingGas89.4%
Broag Remeha W40M EcoCondensingGas83.0%
Broag Remeha W60M EcoCondensingGas83.0%
Buderus Logamax Plus GB162-65kWCondensingGas88.9%
Burco Maxol Microturbo 40 SRF & 40 MDFNon-CondensingGas68.0%
Burco Maxol Microturbo 50 SRF & 50 MDFNon-CondensingGas68.0%
Caradon Ideal Mexico Slimline 2 cf40Non-CondensingGas65.0%
Caradon Ideal Mexico Slimline 2 cf55Non-CondensingGas65.0%
Caradon Ideal Mexico Slimline 2 rs40Non-CondensingGas65.0%
Caradon Ideal Mexico Slimline 2 rs55Non-CondensingGas65.0%
Caradon Ideal Mexico Slimline cf40Non-CondensingGas65.0%
Caradon Ideal Mexico Slimline cf55Non-CondensingGas65.0%
Caradon Ideal Mexico Slimline rs40Non-CondensingGas65.0%
Caradon Ideal Mexico Slimline rs55Non-CondensingGas65.0%
Caradon Ideal Mexico Super cf100Non-CondensingGas65.0%
Caradon Ideal Mexico Super cf125Non-CondensingGas65.0%
Caradon Ideal Mexico Super cf30/40Non-CondensingGas65.0%
Caradon Ideal Mexico Super cf40Non-CondensingGas65.0%
Caradon Ideal Mexico Super cf40/60Non-CondensingGas65.0%
Caradon Ideal Mexico Super cf55Non-CondensingGas65.0%
Caradon Ideal Mexico Super cf65Non-CondensingGas65.0%
Caradon Ideal Mexico Super cf75Non-CondensingGas65.0%
Caradon Ideal Mexico Super cf80Non-CondensingGas65.0%
Caradon Ideal Mexico Super rs100Non-CondensingGas65.0%
Caradon Ideal Mexico Super rs125Non-CondensingGas65.0%
Caradon Ideal Mexico Super rs30/40Non-CondensingGas65.0%
Caradon Ideal Mexico Super rs40Non-CondensingGas65.0%
Caradon Ideal Mexico Super rs40/60Non-CondensingGas65.0%
Caradon Ideal Mexico Super rs55Non-CondensingGas65.0%
Caradon Ideal Mexico Super rs65Non-CondensingGas65.0%
Caradon Ideal Mexico Super rs75Non-CondensingGas65.0%
Caradon Ideal Mexico Super rs80Non-CondensingGas65.0%
Chaffoteaux Celtic ffNon-CondensingGas70.0%
Chaffoteaux Challenger 30bfNon-CondensingGas65.0%
Chaffoteaux Challenger 30ffNon-CondensingGas72.0%
Chaffoteaux Challenger 30ofNon-CondensingGas65.0%
Chaffoteaux Challenger 40bfNon-CondensingGas65.0%
Chaffoteaux Challenger 50ffNon-CondensingGas72.0%
Chaffoteaux Challenger 50ofNon-CondensingGas65.0%
Chaffoteaux Corvec 28bfNon-CondensingGas65.0%
Chaffoteaux Corvec 28ofNon-CondensingGas65.0%
Chaffoteaux Corvec 28sNon-CondensingGas65.0%
Chaffoteaux Corvec 45bfNon-CondensingGas65.0%
Chaffoteaux Corvec 45ofNon-CondensingGas65.0%
Chaffoteaux Corvec 45sNon-CondensingGas65.0%
Chaffoteaux Corvec 48cfNon-CondensingGas65.0%
Chaffoteaux Corvec 64cfNon-CondensingGas65.0%
Chaffoteaux Corvec 80cfNon-CondensingGas65.0%
Chaffoteaux Corvec Maxiflame 2bfNon-CondensingGas65.0%
Chaffoteaux Corvec Miniflame cfNon-CondensingGas65.0%
Chaffoteaux et Maury Britony Combi 100Non-CondensingGas78.4%
Chaffoteaux et Maury Britony Combi 80Non-CondensingGas76.6%
Chaffoteaux et Maury Britony Combi SE100 Atac 28FFNon-CondensingGas78.4%
Chaffoteaux et Maury Britony Combi SE80 Atac 24FFNon-CondensingGas78.7%
Chaffoteaux et Maury Britony System 100Non-CondensingGas78.5%
Chaffoteaux et Maury Britony System 40Non-CondensingGas76.2%
Chaffoteaux et Maury Britony System 60Non-CondensingGas78.9%
Chaffoteaux et Maury Britony System II 100Non-CondensingGas78.5%
Chaffoteaux et Maury Britony System II 80Non-CondensingGas78.8%
Chaffoteaux et Maury Britony System II Plus 100Non-CondensingGas78.5%
Chaffoteaux et Maury Britony System II Plus 80Non-CondensingGas78.8%
Chaffoteaux et Maury Calydra 100Non-CondensingGas78.4%
Chaffoteaux et Maury Calydra 80Non-CondensingGas76.6%
Chaffoteaux et Maury Calydra 80 V2Non-CondensingGas78.7%
Chaffoteaux et Maury Calydra Comfort 100Non-CondensingGas78.4%
Chaffoteaux et Maury Calydra Green 24CondensingGas88.9%
Chaffoteaux et Maury Calydra Green 30CondensingGas88.5%
Chaffoteaux et Maury Centora Green 18-24 Eurocondens 18-24CondensingGas89.4%
Chaffoteaux et Maury Centora Green 24CondensingGas88.9%
Chaffoteaux et Maury Centora Green 30CondensingGas88.5%
Chaffoteaux et Maury Centora Green System 24CondensingGas89.0%
Chaffoteaux et Maury Centora Green System 30CondensingGas88.6%
Chaffoteaux et Maury Minima HE 24CondensingGas88.8%
Chaffoteaux et Maury Minima HE 30CondensingGas88.8%
Chaffoteaux et Maury Minima HE 35CondensingGas89.1%
Chaffoteaux et Maury Minima HE System 24CondensingGas88.9%
Chaffoteaux et Maury Minima HE System 30CondensingGas88.9%
Chaffoteaux et Maury MX2 24 FF LPG MinimaNon-CondensingLPG79.9%
Chaffoteaux et Maury MX2 24 FF MinimaNon-CondensingGas78.1%
Chaffoteaux et Maury MX2 30 FF LPG MinimaNon-CondensingLPG81.2%
Chaffoteaux et Maury MX2 30 FF MinimaNon-CondensingGas79.4%
Charles Portway & Son Portway 40FNon-CondensingOil65.0%
Charles Portway & Son Portway Inset TrioNon-CondensingOil65.0%
Charles Portway & Son Portway Tortoisaire MkIIINon-CondensingOil65.0%
Charles Portway & Son Portway Trio MkIVNon-CondensingOil65.0%
Charles Portway & Son Portway VisaireNon-CondensingOil65.0%
Claudio GR (Vokera) Excell 80SPNon-CondensingGas73.0%
Clyde CW45CondensingGas88.8%
Clyde CW60CondensingGas89.1%
Clyde GB112-43CondensingGas88.6%
Clyde GB112-60CondensingGas88.6%
Clyde GO4ENon-CondensingGas78.7%
Clyde GO5ENon-CondensingGas78.8%
Clyde GO6ENon-CondensingGas78.7%
Clyde GO7ENon-CondensingGas78.7%
Coopra BV Biasi Riva Condensing M101.31 S (P)CondensingGas89.3%
Coopra BV Biasi Riva Condensing M101.31 SR (P)CondensingGas89.4%
Coopra BV Biasi Riva Condensing M101.31 SRB (P)CondensingGas89.4%
Daikin EHYKOMB33AACondensingLPG90.1%
Daikin EHYKOMB33AA EHYKOMB33AASCondensingGas89.2%
Daikin EKOMBGU22AAV1 GC 47-464-02CondensingGas88.8%
Daikin EKOMBGU28AAV1CondensingGas88.8%
Daikin EKOMBGU33AAV1 GC47-464-04CondensingGas89.1%
Daikin EKOMBU22AAV1CondensingGas88.8%
Daikin EKOMBU28AAV1CondensingGas88.8%
Daikin EKOMBU33AAV1 GC 47 464 07CondensingGas89.1%
DD Heating Heatline C24CondensingGas85.5%
DD Heating Heatline C28CondensingGas86.1%
DD Heating Heatline C28SCondensingGas86.1%
DD Heating Heatline S20 CompactNon-CondensingGas79.3%
DD Heating Heatline S20S CompactNon-CondensingGas79.4%
DD Heating Heatline S24 CompactNon-CondensingGas79.9%
DD Heating Heatline S24S CompactNon-CondensingGas80.0%
DD Heating Heatline S30 CompactNon-CondensingGas79.0%
DD Heating Heatline S30S CompactNon-CondensingGas79.1%
DD Heating Heatline Solaris 24PCCondensingGas88.6%
DD Heating Heatline Solaris 30 PCCondensingGas88.6%
DD Heating Heatline Solaris 30PCSCondensingGas88.7%
DD Heating Heatline Star 24Non-CondensingGas78.6%
DD Heating Mikrofill Ethos 24 CNon-CondensingGas78.6%
De Dietrich MPX 20/24 MI COMPACTCondensingGas89.1%
De Dietrich MPX 24 COMPACTCondensingGas89.2%
De Dietrich MPX 24/28 MI COMPACTCondensingGas89.1%
De Dietrich MPX 28/33 BICCondensingGas89.1%
De Dietrich MPX 28/33 MI COMPACTCondensingGas89.1%
De Dietrich Thermique EMC-M 24CondensingGas89.4%
De Dietrich Thermique EMC-M 24/28MICondensingGas89.3%
De Dietrich Thermique EMC-M 30/35MICondensingGas89.2%
De Dietrich Thermique EMC-M 34/39MICondensingGas89.1%
Dimplex Combi 24CondensingLPG90.8%
Dimplex Combi 30CondensingLPG90.1%
Dimplex Combi 38CondensingLPG90.6%
Dimplex OV 18CondensingLPG90.9%
Dimplex OV 32CondensingLPG90.1%
Dimplex System 18CondensingLPG90.9%
Dimplex System 30CondensingLPG90.8%
E.C.A. Confeo Premix CP 24 HCHCondensingGas88.7%
E.C.A. Confeo Premix CP 24 HMCondensingGas88.6%
E.C.A. Confeo Premix CP 24 HSTCondensingLPG89.7%
E.C.A. Confeo Premix CP 30 HCHCondensingLPG89.9%
E.C.A. Confeo Premix CP 30 HMCondensingLPG89.8%
E.C.A. Confeo Premix CP 30 HSTCondensingLPG89.9%
Eco Hometec (UK) EC16HCondensingGas88.7%
Eco Hometec (UK) EC16HSCondensingGas88.7%
Eco Hometec (UK) EC16SCondensingGas88.6%
Eco Hometec (UK) EC23HCondensingGas89.2%
Eco Hometec (UK) EC23HSCondensingGas89.2%
Eco Hometec (UK) EC23SCondensingGas89.1%
Eco Hometec (UK) EC31HCondensingGas89.2%
Eco Hometec (UK) EC31HSCondensingGas89.2%
Eco Hometec (UK) EC31SCondensingGas89.1%
Eco Hometec (UK) EC38HCondensingGas89.0%
Eco Hometec (UK) EC38SCondensingGas88.9%
Eco Hometec (UK) Multi-Oil Type 2.1CondensingOil89.5%
Eco Hometec (UK) Multi-Oil Type 4CondensingOil89.5%
Econoflame Econoflame R30/45CondensingGas89.1%
Econoflame Econoflame R30/45 LPGCondensingLPG90.1%
Econoflame Econoflame R30/65CondensingGas88.9%
Econoflame Econoflame R30/65 LPGCondensingLPG89.9%
EHC Eco Save 21KCondensingGas89.4%
EHC Eco Save 25KCondensingGas89.0%
EHC Eco Save 32KCondensingGas89.1%
EHC Eco Save 37kCondensingGas88.9%
ELCO Klockner Heiztechnik Ultron 22CondensingGas86.8%
Elco Straton 22Non-CondensingOil85.6%
Elco Systron 2-22Non-CondensingOil85.6%
Elco THISION S PLUS 34CondensingGas89.4%
Elco THISION S PLUS 46CondensingGas89.5%
Elco THISION S PLUS 54CondensingGas89.5%
Elco Trigon 22CondensingGas88.8%
Eurocal Ambassador 15/21 KitchenCondensingOil92.0%
Eurocal Ambassador 21/27 KitchenCondensingOil91.6%
Eurocal Ambassador 27/38 KitchenCondensingOil91.6%
Eurocal Countryman 15/21 Outdoor CombiCondensingOil90.3%
Eurocal Countryman 15/21 Slimline OutdoorCondensingOil92.0%
Eurocal Countryman 21/27 Outdoor CombiCondensingOil89.9%
Eurocal Countryman 21/27 Slimline OutdoorCondensingOil91.6%
Eurocal Countryman 27/38 Outdoor CombiCondensingOil89.9%
Eurocal Countryman 27/38 Slimline OutdoorCondensingOil89.9%
Eurocal Senator 15/21 CombiCondensingOil90.3%
Eurocal Senator 21/27 CombiCondensingOil89.9%
Eurocal Senator 27/38 CombiCondensingOil89.9%
Europa 24 24kW Combi BoilerNon-CondensingGas78.9%
Europa 28 28 kW Combi BoilerNon-CondensingGas79.8%
EUROTERM E25CondensingGas88.0%
EUROTERM E27 PLUSCondensingGas89.5%
EUROTERM E29CondensingGas88.0%
EUROTERM E32 PLUSCondensingGas89.5%
Evo HE 12 HE 12CondensingGas88.7%
Evo HE 16 HE16CondensingGas89.7%
Evo HE 19 HE19CondensingGas89.4%
Evo HE 22 HE22CondensingGas88.8%
Evo HE C22/24 HE C 22/24CondensingGas88.7%
Evo HE C22/30 HE C22/30CondensingGas88.7%
Evo HE C22/35 HE C22/35CondensingGas88.7%
Express BC 24 CombiCondensingGas86.4%
Express BC 28 CombiCondensingGas86.5%
Fagor Electrodomesticos S.Coop FE-24E Supercompact Fe-24EUKNon-CondensingGas79.9%
Fagor Electrodomesticos S.Coop FE-24E Supercompact FE-24EUK NNon-CondensingGas79.9%
Fagor Electrodomesticos S.Coop FE-27E Supercompact FE-27EUKNon-CondensingLPG79.8%
Fagor Electrodomesticos S.Coop FE-27E Supercompact FE-27EUK NNon-CondensingGas78.4%
Fagor Electrodomesticos S.Coop FEB-20E Ecoplus FEB-20EUK GLPNon-CondensingLPG81.0%
Fagor Electrodomesticos S.Coop FEB-20E Ecoplus FEB-20EUK NNon-CondensingGas79.5%
Fagor Electrodomesticos S.Coop FEB-24E Supercompact FEB-24EUKNon-CondensingLPG82.1%
Fagor Electrodomesticos S.Coop FEB-24E Supercompact FEB-24EUK NNon-CondensingGas79.9%
Fagor Electrodomesticos S.Coop FEB-27E Supercompact FEB-27EUK NNon-CondensingGas78.4%
Fagor Electrodomesticos S.Coop FEE-35MA Supercompact FEE-35MAUKNon-CondensingLPG81.8%
Fagor Electrodomesticos S.Coop FEE-35MA Supercompact FEE-35MAUK NNon-CondensingGas80.0%
Fagor Electrodomesticos S.Coop Morco FEB-24E Supercompact FEB-24EUKNon-CondensingLPG82.1%
Fagor Electrodomesticos S.Coop Morco FEB-24E Supercompact FEB-24EUK NatNon-CondensingGas79.9%
Fer Industrie FalconNon-CondensingGas79.6%
Fer Industrie Falcon IINon-CondensingGas78.0%
Fer tech 18ovCondensingGas89.4%
Fer tech 25ovCondensingGas89.1%
Fer tech 31CCondensingGas89.0%
Fer tech 38CCondensingGas89.3%
Ferroli 100FFNon-CondensingGas70.0%
Ferroli 77CFNon-CondensingGas65.0%
Ferroli 77FFNon-CondensingGas70.0%
Ferroli 77FF(P)Non-CondensingGas70.0%
Ferroli Arena 30 ACondensingGas88.7%
Ferroli Arena 30 A Mk2CondensingGas88.9%
Ferroli Arena 30 CCondensingGas88.6%
Ferroli Arena 30 C Mk2CondensingGas88.8%
Ferroli Combi 76ffNon-CondensingGas70.0%
Ferroli Domicompact F 24 BCondensingGas86.8%
Ferroli Domicompact F 24 B LPGCondensingLPG87.8%
Ferroli Domicompact F 30 BCondensingGas86.8%
Ferroli Domicompact F 30 B LPGCondensingLPG87.8%
Ferroli DOMIcondens F24CondensingGas87.0%
Ferroli DOMIcondens F28CondensingGas87.0%
Ferroli DOMIcondens HE 26CCondensingGas88.5%
Ferroli Domina 80Non-CondensingGas79.6%
Ferroli Econcept 50 A LPGCondensingLPG90.3%
Ferroli Econcept 50ACondensingGas89.3%
Ferroli F 24 BCondensingGas86.8%
Ferroli F 24 B LPGCondensingLPG87.8%
Ferroli F 30 BCondensingGas86.8%
Ferroli F 30 B LPGCondensingLPG87.8%
Ferroli F24Non-CondensingGas79.6%
Ferroli F30Non-CondensingGas78.0%
Ferroli FERcondens 25 HECondensingGas88.5%
Ferroli Hawk II Hawk IINon-CondensingGas68.0%
Ferroli i25CondensingGas88.0%
Ferroli i29CondensingGas88.0%
Ferroli Maxima 35 C LPGCondensingLPG90.5%
Ferroli Maxima 35 S LPGCondensingLPG90.6%
Ferroli Maxima 35CCondensingGas89.5%
Ferroli Maxima 35SCondensingGas89.6%
Ferroli Modena 102Non-CondensingGas78.0%
Ferroli Modena 18S HECondensingGas89.2%
Ferroli Modena 25C HECondensingGas89.1%
Ferroli Modena 25S HECondensingGas89.3%
Ferroli Modena 27C HECondensingGas89.2%
Ferroli Modena 30C HECondensingGas89.2%
Ferroli Modena 32C HECondensingGas89.2%
Ferroli Modena 32S HECondensingGas89.3%
Ferroli MODENA 38C HE 47-267-63CondensingGas89.1%
Ferroli Modena 80Non-CondensingGas79.6%
Ferroli Optima 1000Non-CondensingGas70.0%
Ferroli Optima 200Non-CondensingGas74.2%
Ferroli Optima 2000CondensingGas83.0%
Ferroli Optima 2001CondensingGas85.5%
Ferroli Optima 201Non-CondensingGas74.2%
Ferroli Optima 600Non-CondensingGas70.0%
Ferroli Optima 700Non-CondensingGas70.0%
Ferroli Optima 800Non-CondensingGas70.0%
Ferroli Optima 900Non-CondensingGas70.0%
Ferroli Optimax 25 CCondensingGas89.3%
Ferroli Optimax 25 C LPGCondensingLPG90.3%
Ferroli Optimax 25 OVCondensingGas89.4%
Ferroli Optimax 25 OV LPGCondensingLPG90.4%
Ferroli Optimax 25 SCondensingGas89.4%
Ferroli Optimax 25 S LPGCondensingLPG90.4%
Ferroli Optimax HE 25 SCondensingGas89.1%
Ferroli Optimax HE 31 CCondensingGas89.0%
Ferroli Optimax HE 31 SCondensingGas89.4%
Ferroli Optimax HE 38 CCondensingGas89.3%
Ferroli Optimax HE Plus 18 OVCondensingLPG90.4%
Ferroli Optimax HE Plus 18 SCondensingLPG90.4%
Ferroli Optimax HE Plus 25 OVCondensingLPG90.1%
Ferroli Optimax HE Plus 25 SCondensingLPG90.1%
Ferroli Optimax HE Plus 31 CCondensingLPG90.0%
Ferroli Optimax HE Plus 35 SCondensingLPG90.4%
Ferroli Optimax HE Plus 38 CCondensingLPG90.3%
Ferroli Roma 55ffNon-CondensingGas72.0%
Ferroli Sigma 20-40Non-CondensingGas78.2%
Ferroli Sigma 30Non-CondensingGas76.9%
Ferroli Sigma 40Non-CondensingGas77.7%
Ferroli Sigma 40-60Non-CondensingGas78.1%
Ferroli Sigma 50Non-CondensingGas77.3%
Ferroli Sigma 60Non-CondensingGas77.5%
Ferroli Sigma 60-100Non-CondensingGas78.3%
Ferroli SYS 10-23Non-CondensingGas78.9%
Ferroli T-One 25C HECondensingGas89.1%
Ferroli T-One 30C HECondensingGas89.2%
Ferroli TempraNon-CondensingGas77.5%
Ferroli Tempra 12Non-CondensingGas78.1%
Ferroli Tempra 18Non-CondensingGas78.1%
Ferroli Tempra 24Non-CondensingGas78.0%
Ferroli Tempra 30Non-CondensingGas78.1%
Ferroli Xignal XignalNon-CondensingGas68.0%
Firebird Blue Flame Enviromax Heatpac 26kWCondensingOil92.5%
Firebird Blue Flame Enviromax Popular 26kWCondensingOil92.5%
Firebird Boilerhouse S 120-150Non-CondensingOil85.6%
Firebird Boilerhouse S 150-200Non-CondensingOil85.3%
Firebird Boilerhouse S 200-250Non-CondensingOil85.1%
Firebird Boilerhouse S 50-70Non-CondensingOil83.9%
Firebird Boilerhouse S 70-90Non-CondensingOil85.0%
Firebird Boilerhouse S 90-120Non-CondensingOil85.3%
Firebird Combi 115Non-CondensingOil83.1%
Firebird Combi 50-70Non-CondensingOil82.4%
Firebird Combi 70-90Non-CondensingOil82.4%
Firebird Combi 90Non-CondensingOil83.3%
Firebird Combi 90-120Non-CondensingOil83.6%
Firebird Combi C20CondensingOil89.4%
Firebird Combi C26CondensingOil89.4%
Firebird Combi C35CondensingOil89.2%
Firebird Combipac 115Non-CondensingOil83.1%
Firebird Combipac 50-70Non-CondensingOil82.4%
Firebird Combipac 70-90Non-CondensingOil82.4%
Firebird CombiPac 90Non-CondensingOil83.3%
Firebird Combipac 90-120Non-CondensingOil83.6%
Firebird Combipac C20CondensingOil89.4%
Firebird Combipac C26CondensingOil89.4%
Firebird Combipac C35CondensingOil89.2%
Firebird Enviromax Amber Supreme Heatpac 26CondensingOil93.2%
Firebird Enviromax Amber Supreme Popular 26CondensingOil93.2%
Firebird Enviromax Amber Supreme Utility 26CondensingOil93.2%
Firebird Enviromax Blue Supreme Heatpac 20CondensingOil93.4%
Firebird Enviromax Blue Supreme Heatpac 26CondensingOil93.4%
Firebird Enviromax Blue Supreme Popular 20CondensingOil93.4%
Firebird Enviromax Blue Supreme Popular 26CondensingOil93.4%
Firebird Enviromax Blue Supreme Utility 20CondensingOil93.4%
Firebird Enviromax Blue Supreme Utility 26CondensingOil93.4%
Firebird Enviromax Combi C20CondensingOil89.8%
Firebird Enviromax Combi C20kWCondensingOil90.1%
Firebird Enviromax Combi C26CondensingOil89.9%
Firebird Enviromax Combi C26kWCondensingOil90.1%
Firebird Enviromax Combi C35CondensingOil89.1%
Firebird Enviromax Combi C35kWCondensingOil89.7%
Firebird Enviromax Combi HE 20kWCondensingOil90.6%
Firebird Enviromax Combi HE 26kWCondensingOil90.4%
Firebird Enviromax Combi HE 35kWCondensingOil89.9%
Firebird Enviromax Combipac C20CondensingOil89.8%
Firebird Enviromax Combipac C20kWCondensingOil90.1%
Firebird Enviromax Combipac C26CondensingOil89.9%
Firebird Enviromax Combipac C26kWCondensingOil90.1%
Firebird Enviromax Combipac C35CondensingOil89.1%
Firebird Enviromax Combipac C35kWCondensingOil89.7%
Firebird Enviromax Combipac HE 26kWCondensingOil90.2%
Firebird Enviromax Heatpac C12/18 kWCondensingOil92.3%
Firebird Enviromax Heatpac C12/20kWCondensingOil92.2%
Firebird Enviromax Heatpac C20CondensingOil91.5%
Firebird Enviromax Heatpac C20kWCondensingOil91.8%
Firebird Enviromax Heatpac C26CondensingOil91.6%
Firebird Enviromax Heatpac C26kWCondensingOil91.8%
Firebird Enviromax Heatpac C35CondensingOil90.8%
Firebird Enviromax Heatpac C35kWCondensingOil91.4%
Firebird Enviromax Heatpac C44CondensingOil91.3%
Firebird Enviromax Heatpac C58CondensingOil90.6%
Firebird Enviromax Heatpac C73CondensingOil90.3%
Firebird Enviromax Kitchen C12/18kWCondensingOil92.3%
Firebird Enviromax Kitchen C20CondensingOil91.5%
Firebird Enviromax Kitchen C20kWCondensingOil91.8%
Firebird Enviromax Kitchen C26CondensingOil91.6%
Firebird Enviromax Kitchen C26kWCondensingOil91.8%
Firebird Enviromax Kitchen C35CondensingOil90.8%
Firebird Enviromax Kitchen C35kWCondensingOil91.4%
Firebird Enviromax Kitchen C44CondensingOil91.3%
Firebird Enviromax Kitchen C58CondensingOil90.6%
Firebird Enviromax Kitchen C73CondensingOil90.3%
Firebird Enviromax Kitchen System C12/20kWCondensingOil92.2%
Firebird Enviromax Popular C12/18KWCondensingOil92.3%
Firebird Enviromax Popular C12/20kWCondensingOil92.2%
Firebird Enviromax Popular C20CondensingOil91.5%
Firebird Enviromax Popular C20kWCondensingOil91.8%
Firebird Enviromax Popular C26CondensingOil91.6%
Firebird Enviromax Popular C26kWCondensingOil91.8%
Firebird Enviromax Popular C35CondensingOil90.8%
Firebird Enviromax Popular C35kWCondensingOil91.4%
Firebird Enviromax Popular C44CondensingOil91.3%
Firebird Enviromax Popular C58CondensingOil90.6%
Firebird Enviromax Popular C73CondensingOil90.3%
Firebird Enviromax Slimline Combi 20CondensingOil90.5%
Firebird Enviromax Slimline Combi 26CondensingOil90.5%
Firebird Enviromax System C20CondensingOil91.5%
Firebird Enviromax System C20kWCondensingOil91.8%
Firebird Enviromax System C26CondensingOil91.6%
Firebird Enviromax System C26kWCondensingOil91.8%
Firebird Enviromax System C35CondensingOil90.8%
Firebird Enviromax System C35kWCondensingOil91.4%
Firebird Enviromax System C44CondensingOil91.3%
Firebird Enviromax Systempac C12/20kWCondensingOil92.2%
Firebird Enviromax Systempac C20CondensingOil91.5%
Firebird Enviromax Systempac C20kWCondensingOil91.8%
Firebird Enviromax Systempac C26CondensingOil91.6%
Firebird Enviromax Systempac C26kWCondensingOil91.8%
Firebird Enviromax Systempac C35CondensingOil90.8%
Firebird Enviromax Systempac C35kWCondensingOil91.4%
Firebird Enviromax Systempac C44CondensingOil91.3%
Firebird Enviromax Utility C20CondensingOil91.5%
Firebird Enviromax Utility C20kWCondensingOil91.8%
Firebird Enviromax Utility C26CondensingOil91.6%
Firebird Enviromax Utility C26kWCondensingOil91.8%
Firebird Enviromax Utility C35CondensingOil90.8%
Firebird Enviromax Utility C35kWCondensingOil91.4%
Firebird Envirormax Kitchen C12/20kWCondensingOil92.2%
Firebird Heatpac 120-150Non-CondensingOil85.6%
Firebird Heatpac 150-200Non-CondensingOil85.3%
Firebird Heatpac 200-250Non-CondensingOil85.1%
Firebird Heatpac 70Non-CondensingOil83.9%
Firebird Heatpac 70 SystemNon-CondensingOil83.9%
Firebird Heatpac 70-90Non-CondensingOil85.0%
Firebird Heatpac 90-120Non-CondensingOil85.3%
Firebird Heatpac 90-120 SystemNon-CondensingOil85.3%
Firebird Heatpac C20CondensingOil91.1%
Firebird Heatpac C26CondensingOil91.1%
Firebird Heatpac C35CondensingOil90.9%
Firebird Heatpac S 70-90Non-CondensingOil85.0%
Firebird Heatpac S 90-120Non-CondensingOil85.3%
Firebird Heatpac Sealed System 70-90Non-CondensingOil85.0%
Firebird Kitchen C20CondensingOil91.1%
Firebird Kitchen C26CondensingOil91.1%
Firebird Kitchen C35CondensingOil90.9%
Firebird Oylympic Boilerhouse 50 – 70Non-CondensingOil83.9%
Firebird Oylympic Boilerhouse 50-82Non-CondensingOil85.0%
Firebird Oylympic Boilerhouse 70 – 90Non-CondensingOil85.0%
Firebird Oylympic Boilerhouse 90-115Non-CondensingOil85.3%
Firebird Oylympic De Luxe 50-82Non-CondensingOil85.0%
Firebird Oylympic DeLuxe 50-70Non-CondensingOil83.9%
Firebird Oylympic Deluxe 70-90Non-CondensingOil85.0%
Firebird Oylympic S 50-70Non-CondensingOil83.9%
Firebird Oylympic S 50-82Non-CondensingOil85.0%
Firebird Oylympic S 70-90Non-CondensingOil85.0%
Firebird Oylympic S 90-115Non-CondensingOil85.3%
Firebird Popular 120-150Non-CondensingOil85.6%
Firebird Popular 150-200Non-CondensingOil85.3%
Firebird Popular 200-250Non-CondensingOil85.1%
Firebird Popular 50-70Non-CondensingOil83.9%
Firebird Popular 50-90Non-CondensingOil85.0%
Firebird Popular 90-120Non-CondensingOil85.3%
Firebird Rhino 120-150 BoilerhouseNon-CondensingOil85.6%
Firebird Rhino 120-150 KitchenNon-CondensingOil85.6%
Firebird Rhino 150-200 BoilerhouseNon-CondensingOil85.3%
Firebird Rhino 150-200 KitchenNon-CondensingOil85.3%
Firebird Rhino 200-250 BoilerhouseNon-CondensingOil85.1%
Firebird Rhino 200-250 KitchenNon-CondensingOil85.1%
Firebird Rhino 50-90 BoilerhouseNon-CondensingOil85.0%
Firebird Rhino 50-90 KitchenNon-CondensingOil85.0%
Firebird Rhino 90-120 BoilerhouseNon-CondensingOil85.3%
Firebird Rhino 90-120 KitchenNon-CondensingOil85.3%
Firebird Rhino Heatpac 50-90Non-CondensingOil85.0%
Firebird Rhino Heatpac 90-120Non-CondensingOil85.3%
Firebird Rhino Slimline Heatpac 50/90Non-CondensingOil85.0%
Firebird Roomsealed Popular (Hideaway) 120-150Non-CondensingOil85.6%
Firebird Roomsealed Popular (Hideaway) 50 – 90Non-CondensingOil85.0%
Firebird Roomsealed Popular (Hideaway) 90-120Non-CondensingOil85.3%
Firebird S (White Cased) 120-150Non-CondensingOil85.6%
Firebird S (White Cased) 150-200Non-CondensingOil85.3%
Firebird S (White Cased) 200-250Non-CondensingOil85.1%
Firebird S (White Cased) 50-70Non-CondensingOil83.9%
Firebird S (White Cased) 70 SystemNon-CondensingOil83.9%
Firebird S (White Cased) 70-90Non-CondensingOil85.0%
Firebird S (White cased) 90-120Non-CondensingOil85.3%
Firebird S (White Cased) 90-120 SystemNon-CondensingOil85.3%
Firebird Sealed System 70-90Non-CondensingOil85.0%
Firebird Silver Boiilerhouse C20kWCondensingOil91.3%
Firebird Silver Boiilerhouse C35KWCondensingOil90.7%
Firebird Silver Boilerhouse C26kWCondensingOil91.2%
Firebird Silver Boilerhouse CR20CondensingOil90.5%
Firebird Silver Boilerhouse CR26CondensingOil90.2%
Firebird Silver Boilerhouse CR35CondensingOil89.0%
Firebird Silver System C20kWCondensingOil91.3%
Firebird Silver System C26kWCondensingOil91.2%
Firebird Silver System C35kWCondensingOil90.7%
Firebird Silver System CR20CondensingOil90.5%
Firebird Silver System CR26CondensingOil90.2%
Firebird Silver System CR35CondensingOil89.0%
Firebird Silver Utility C20kWCondensingOil91.3%
Firebird Silver Utility C26kWCondensingOil91.2%
Firebird Silver Utility C35kWCondensingOil90.7%
Firebird Silver Utility CR20CondensingOil90.5%
Firebird Silver Utility CR26CondensingOil90.2%
Firebird Silver Utility CR35CondensingOil89.0%
Firebird Silverpac C20kWCondensingOil91.3%
Firebird Silverpac C26kWCondensingOil91.2%
Firebird Silverpac C35kWCondensingOil90.7%
Firebird Silverpac CR20CondensingOil90.5%
Firebird Silverpac CR26CondensingOil90.2%
Firebird Silverpac CR35CondensingOil89.0%
Firebird System C20CondensingOil91.1%
Firebird System C26CondensingOil91.1%
Firebird System C35CondensingOil90.9%
Firebird Systempac C20CondensingOil91.1%
Firebird Systempac C26CondensingOil91.1%
Firebird Systempac C35CondensingOil90.9%
Fonderie Sime MURELLE HE 70 R ErPCondensingGas89.0%
Fonderie Sime MURELLE PRO HE 35 MkIICondensingGas89.0%
Fondital Antea KC 24CondensingGas88.1%
Fondital Antea KC 28CondensingLPG89.3%
Fondital Antea KR 24CondensingGas88.2%
Fondital Antea KR 28CondensingLPG89.4%
Fondital Antea KRB 24CondensingGas88.2%
Fondital Itaca KC 24CondensingLPG89.1%
Fondital Itaca KC 28CondensingLPG89.3%
Fondital Itaca KC 32CondensingLPG89.8%
Fondital Itaca KR 24CondensingLPG89.2%
Fondital Itaca KR 32CondensingLPG89.9%
Fondital Tahiti Condensing KC 24 Line TechCondensingGas88.5%
Fondital Tahiti Condensing KC 28 Line TechCondensingGas88.5%
Fondital Tahiti Condensing KC 32 Line TechCondensingGas88.5%
Fondital Tahiti Condensing KR 24 Line TechCondensingGas88.6%
Fondital Tahiti Condensing KR 28 Line TechCondensingGas88.6%
Fondital Tahiti Condensing KR 32 Line TechCondensingGas88.6%
Fondital Tahiti Condensing KR 55 Line TechCondensingLPG90.2%
Fondital Tahiti Condensing KRB 24 Line TechCondensingGas88.6%
Fondital Tahiti Condensing KRB 28 Line TechCondensingGas88.6%
Fondital Tahiti Condensing KRB 32 Line TechCondensingGas88.6%
Fondital Tahiti Dual HC 24 LineCondensingGas86.0%
Fondital Tahiti Dual HC 32 LineCondensingLPG86.7%
Fondital Tahiti Dual HR 24 LineCondensingGas86.1%
Fondital Tahiti Dual HR 32 LineCondensingLPG86.8%
Fondital Tahiti Dual HRB 24 LineCondensingGas86.1%
Fondital Tahiti Dual HRB 32 LineCondensingLPG86.8%
Fontecal Corolla 30 ACondensingGas90.0%
Fontecal Corolla 30 PCondensingGas89.3%
Fontecal Corolla 30 SCondensingGas89.4%
Fontecal Digit XERNon-CondensingLPG82.2%
Fontecal Polycal 21 A 100Non-CondensingOil82.3%
Fontecal Polycal 21 A 50Non-CondensingOil82.0%
Fontecal Polycal 21 SNon-CondensingOil83.4%
Fontecal Polycal 26 A 100Non-CondensingOil82.3%
Fontecal Polycal 26 A 50Non-CondensingOil82.0%
Fontecal Polycal 26 SNon-CondensingOil83.4%
GAH Heating Products 100/150 OptionNon-CondensingOil81.7%
GAH Heating Products 100/150 SelectNon-CondensingOil81.7%
GAH Heating Products 140/190 SelectNon-CondensingOil82.2%
GAH Heating Products 190/240 SelectNon-CondensingOil80.9%
GAH Heating Products 40/60 OptionNon-CondensingOil81.8%
GAH Heating Products 40/60 SelectNon-CondensingOil81.8%
GAH Heating Products 60/80 SelectNon-CondensingOil81.8%
GAH Heating Products 80/95 OptionNon-CondensingOil80.7%
GAH Heating Products 80/95 SelectNon-CondensingOil80.7%
GAH Heating Products Combistream BFC 40/60Non-CondensingOil83.9%
GAH Heating Products E40/50 SelectNon-CondensingOil81.6%
GAH Heating Products E50/80 SelectNon-CondensingOil80.7%
GAH Heating Products I40/50 SelectNon-CondensingOil81.6%
GAH Heating Products I50/80 SelectNon-CondensingOil82.2%
GAH Heating Products Thermecon 100/150 Option B/FNon-CondensingOil84.1%
GAH Heating Products Thermecon 100/150 Option C/FNon-CondensingOil84.1%
GAH Heating Products Thermecon 100/150 Select B/FNon-CondensingOil84.1%
GAH Heating Products Thermecon 100/150 Select C/FNon-CondensingOil84.1%
GAH Heating Products Thermecon 100/150 System B/FNon-CondensingOil84.1%
GAH Heating Products Thermecon 100/150 System C/FNon-CondensingOil84.1%
GAH Heating Products Thermecon 140/190 Option B/FNon-CondensingOil83.9%
GAH Heating Products Thermecon 140/190 Option C/FNon-CondensingOil83.9%
GAH Heating Products Thermecon 140/190 Select B/FNon-CondensingOil83.9%
GAH Heating Products Thermecon 140/190 Select C/FNon-CondensingOil83.9%
GAH Heating Products Thermecon 190/240 Option B/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 190/240 Option C/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 190/240 Select B/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 190/240 Select C/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 40/50 W/M ExternalNon-CondensingOil85.0%
GAH Heating Products Thermecon 40/50 W/M Internal B/FNon-CondensingOil85.0%
GAH Heating Products Thermecon 40/50 W/M Internal C/FNon-CondensingOil85.0%
GAH Heating Products Thermecon 40/60 Option B/FNon-CondensingOil85.6%
GAH Heating Products Thermecon 40/60 Option C/FNon-CondensingOil85.6%
GAH Heating Products Thermecon 40/60 Select B/FNon-CondensingOil85.6%
GAH Heating Products Thermecon 40/60 Select C/FNon-CondensingOil85.6%
GAH Heating Products Thermecon 50/80 W/M ExternalNon-CondensingOil84.7%
GAH Heating Products Thermecon 50/80 W/M Internal B/FNon-CondensingOil84.7%
GAH Heating Products Thermecon 50/80 W/M Internal C/FNon-CondensingOil84.7%
GAH Heating Products Thermecon 60/80 Option B/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 60/80 Option C/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 60/80 Select B/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 60/80 Select C/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 60/80 System B/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 60/80 System C/FNon-CondensingOil84.4%
GAH Heating Products Thermecon 80/95 Option B/FNon-CondensingOil84.2%
GAH Heating Products Thermecon 80/95 Option C/FNon-CondensingOil84.2%
GAH Heating Products Thermecon 80/95 Select B/FNon-CondensingOil84.2%
GAH Heating Products Thermecon 80/95 Select C/FNon-CondensingOil84.2%
GAH Heating Products Thermecon 80/95 System B/FNon-CondensingOil84.2%
GAH Heating Products Thermecon 80/95 System C/FNon-CondensingOil84.2%
GAH Heating Products Thermecon 90/120 Option B/FNon-CondensingOil83.9%
GAH Heating Products Thermecon 90/120 Option C/FNon-CondensingOil83.9%
GAH Heating Products Thermecon 90/120 Select B/FNon-CondensingOil83.9%
GAH Heating Products Thermecon 90/120 Select C/FNon-CondensingOil83.9%
GAH Heating Products Thermecon 90/120 System B/FNon-CondensingOil83.9%
GAH Heating Products Thermecon 90/120 System C/FNon-CondensingOil83.9%
GEM CC1 15/20CondensingOil89.1%
GEM CC2 20/26CondensingOil89.1%
GEM CC3 26/35CondensingOil89.2%
GEM CC4 35/41CondensingOil89.2%
GEM CKUT1 15/20CondensingOil90.8%
GEM CKUT2 20/26CondensingOil90.8%
GEM CKUT3 26/35CondensingOil90.9%
GEM CKUT4 35/41CondensingOil90.9%
GEM COD C1 15/20CondensingOil89.1%
GEM COD C2 20/26CondensingOil89.1%
GEM COD C3 26/35CondensingOil89.2%
GEM COD C4 35/41CondensingOil89.2%
GEM COD1 15/20CondensingOil90.8%
GEM COD1 SS 15/20CondensingOil90.8%
GEM COD2 20/26CondensingOil90.8%
GEM COD2 SS 20/26CondensingOil90.8%
GEM COD3 26/35CondensingOil90.9%
GEM COD3 SS 26/35CondensingOil90.9%
GEM COD4 35/41CondensingOil90.9%
GEM COD4 SS 35/41CondensingOil90.9%
GEM CS1 15/20CondensingOil90.8%
GEM CS2 20/26CondensingOil90.8%
GEM CS3 26/35CondensingOil90.9%
GEM CS4 35/41CondensingOil90.9%
GEM E-Compact 50/70 Boiler HouseCondensingOil92.0%
GEM E-Compact 50/70 CosymanCondensingOil92.0%
GEM E-Compact 70/90 Boiler HouseCondensingOil91.6%
GEM E-Compact 70/90 CosymanCondensingOil91.6%
Geminox Astrane 30S FIOULNon-CondensingOil84.1%
Geminox FCXCondensingOil89.5%
Geminox THI 0.9-9 CCondensingGas89.0%
Geminox THI 10-50 CCondensingGas88.7%
Geminox THI 2-13 CCondensingGas89.0%
Geminox THI 2-13 M75 VCondensingGas89.3%
Geminox THI 5-25 CCondensingGas89.0%
Geminox THI 5-25 C DCCondensingGas89.0%
Geminox THI 5-25 M75CondensingGas89.3%
Geminox THI 5-25 SEPCondensingGas88.9%
Geminox THI 5-25SCondensingGas89.3%
Geminox THR 10-50CondensingGas88.7%
Geminox THR 2-13CCondensingGas89.0%
Geminox THR 5-25 M75CondensingGas89.5%
Geminox THR 5-25CCondensingGas89.0%
Geminox THR 5-25SCondensingGas89.4%
Geminox THR 5-25SEPCondensingGas88.9%
Gerkros 14.6 – 20.5 kW Oil Condensing Combi BoilerCondensingOil89.0%
Gerkros 20.5 – 26.4 kW Oil Condensing Combi BoilerCondensingOil89.1%
Gerkros 50 70 Oil Condensing Boiler Boiler House ModelCondensingOil89.8%
Gerkros 50 70 Oil Condensing Boiler CosymanCondensingOil89.8%
Gerkros 50 70 Oil Condensing Boiler Utility ModelCondensingOil89.8%
Gerkros 70 90 Oil Condensing Boiler Boiler House ModelCondensingOil90.1%
Gerkros 70 90 Oil Condensing Boiler CosymanCondensingOil90.1%
Gerkros 70 90 Oil Condensing Boiler Utility ModelCondensingOil90.1%
Gerkros 90 120 Oil Condensing Boiler Boiler House ModelCondensingOil89.9%
Gerkros 90 120 Oil Condensing Boiler CosymanCondensingOil89.9%
Gerkros 90 120 Oil Condensing Boiler Utility ModelCondensingOil89.9%
Gerkros Cozy Mann 50/70 fdcNon-CondensingOil84.0%
Gerkros Cozy Mann 60/95 tdcNon-CondensingOil82.5%
Gerkros Cozy Mann 80/105 fdcNon-CondensingOil82.0%
Gerkros Cozy Mann 90/120 tdcNon-CondensingOil82.1%
Gerkros Gem fdc 50/70Non-CondensingOil84.0%
Gerkros Gem fdc 80/105Non-CondensingOil82.0%
Gerkros Gem Superior id 90/120Non-CondensingOil82.1%
Gerkros Gem Top Cleaner 60/95Non-CondensingOil82.5%
Gerkros Gem Top Cleaner 90/120Non-CondensingOil82.1%
Gerkros Termogas KSTCondensingGas85.3%
Gerkros Termogas KTCondensingGas88.2%
Gerkros Termogas KT/ACondensingGas88.4%
Gledhill GB10 AGB5010CondensingGas89.2%
Gledhill GB15 AGB5015CondensingGas88.8%
Gledhill GB20 AGB5020CondensingGas88.9%
Gledhill GB25 AGB5025CondensingGas89.3%
Gledhill GB30 AGB5030CondensingGas89.3%
Gledhill GB35C AGB5035CondensingGas89.3%
Gledhill Gulfstream 2000 GS2000/120/ECondensingGas86.9%
Gledhill Gulfstream 2000 GS2000/120/E-OVCondensingGas86.9%
Gledhill Gulfstream 2000 GS2000/130/ECondensingGas87.5%
Gledhill Gulfstream 2000 GS2000/130/E-OVCondensingGas87.5%
Gledhill GulfStream A-Class 12/OVCondensingGas90.2%
Gledhill GulfStream A-Class 12/SSCondensingGas90.2%
Gledhill GulfStream A-Class 20/OVCondensingGas90.0%
Gledhill GulfStream A-Class 20/SSCondensingGas90.0%
Gledhill GulfStream A-Class 30/OVCondensingGas88.6%
Gledhill GulfStream A-Class 30/SSCondensingGas88.6%
Glotec Glotec gt80CondensingGas83.0%
Glow-worm 105-120 105-120Non-CondensingGas65.0%
Glow-worm 105-120B 105-120BNon-CondensingGas65.0%
Glow-worm 12hxiCondensingGas88.7%
Glow-worm 15hxiCondensingGas88.7%
Glow-worm 18hxiCondensingGas88.6%
Glow-worm 18sxiCondensingGas88.6%
Glow-worm 23cNon-CondensingGas79.9%
Glow-worm 240Non-CondensingGas65.0%
Glow-worm 246Non-CondensingGas65.0%
Glow-worm 24ciNon-CondensingGas78.3%
Glow-worm 24ci PlusNon-CondensingGas78.3%
Glow-worm 24cxiCondensingGas88.5%
Glow-worm 24hxiCondensingGas88.9%
Glow-worm 30 ciNon-CondensingGas79.6%
Glow-worm 30 siNon-CondensingGas79.7%
Glow-worm 30ci PlusNon-CondensingGas79.6%
Glow-worm 30cxiCondensingGas88.5%
Glow-worm 30hxiCondensingGas88.7%
Glow-worm 30sxiCondensingGas88.7%
Glow-worm 35ciNon-CondensingGas78.6%
Glow-worm 38cxiCondensingGas88.5%
Glow-worm 38hxiCondensingGas89.2%
Glow-worm 45Non-CondensingGas65.0%
Glow-worm 45-60 45-60Non-CondensingGas65.0%
Glow-worm 45-60B 45-60BNon-CondensingGas65.0%
Glow-worm 45/2 BBUNon-CondensingGas68.4%
Glow-worm 45/4 BBUNon-CondensingGas78.4%
Glow-worm 45FNon-CondensingGas65.0%
Glow-worm 45FRNon-CondensingGas65.0%
Glow-worm 54/4 BBUNon-CondensingGas78.9%
Glow-worm 56Non-CondensingGas65.0%
Glow-worm 56/2 BBUNon-CondensingGas68.1%
Glow-worm 56/3e BBUNon-CondensingGas78.5%
Glow-worm 56/3pp BBUNon-CondensingGas74.5%
Glow-worm 56FNon-CondensingGas65.0%
Glow-worm 56FRNon-CondensingGas65.0%
Glow-worm 65-80 65-80Non-CondensingGas65.0%
Glow-worm 65-80B 65-80BNon-CondensingGas65.0%
Glow-worm 85-100 85-100Non-CondensingGas65.0%
Glow-worm 85-100B 85-100BNon-CondensingGas65.0%
Glow-worm BBU 45/4 Black Beauty 4Non-CondensingGas78.4%
Glow-worm BBU 45/4 Chatsworth 4Non-CondensingGas79.5%
Glow-worm BBU 45/4 Contour 4Non-CondensingGas78.4%
Glow-worm BBU 45/4 Dovedale 4Non-CondensingGas79.5%
Glow-worm BBU 45/4 Firelite 4Non-CondensingGas78.4%
Glow-worm BBU 45/4 Heartbeat 4Non-CondensingGas78.4%
Glow-worm BBU 45/4 Miami 4Non-CondensingGas78.4%
Glow-worm BBU 54/4 Black Beauty 4Non-CondensingGas78.8%
Glow-worm BBU 54/4 Chatsworth 4Non-CondensingGas79.4%
Glow-worm BBU 54/4 Contour 4Non-CondensingGas78.8%
Glow-worm BBU 54/4 Dovedale 4Non-CondensingGas79.4%
Glow-worm BBU 54/4 Firelite 4Non-CondensingGas78.8%
Glow-worm BBU 54/4 Heartbeat 4Non-CondensingGas78.8%
Glow-worm BBU 54/4 Miami 4Non-CondensingGas78.8%
Glow-worm Betacom 24CondensingGas85.9%
Glow-worm Betacom 24aCondensingGas89.0%
Glow-worm Betacom 24cCondensingGas85.6%
Glow-worm Betacom 28aCondensingGas89.2%
Glow-worm Betacom 30CondensingGas86.2%
Glow-worm Betacom 30cCondensingGas85.7%
Glow-worm BETACOM 4 30c-A (H-GB)CondensingGas89.6%
Glow-worm Betacom2 24CondensingGas89.0%
Glow-worm Betacom2 28CondensingGas88.5%
Glow-worm Betacom3 24cCondensingGas89.2%
Glow-worm Betacom3 30cCondensingGas89.2%
Glow-worm Camelot 240/6Non-CondensingGas65.0%
Glow-worm Capricorn 240/6Non-CondensingGas65.0%
Glow-worm Capricorn 246Non-CondensingGas65.0%
Glow-worm Compact 100 System ANon-CondensingGas79.3%
Glow-worm Compact 100eNon-CondensingGas78.2%
Glow-worm Compact 100e ANon-CondensingGas79.2%
Glow-worm Compact 100pNon-CondensingGas71.6%
Glow-worm Compact 60 System ANon-CondensingGas79.5%
Glow-worm Compact 75eNon-CondensingGas77.5%
Glow-worm Compact 75pNon-CondensingGas72.1%
Glow-worm Compact 80eNon-CondensingGas77.8%
Glow-worm Compact 80e ANon-CondensingGas79.5%
Glow-worm Compact 80pNon-CondensingGas72.2%
Glow-worm Easicom 2 24cCondensingGas89.2%
Glow-worm Easicom 2 28cCondensingGas89.2%
Glow-worm Easicom 24CondensingGas89.0%
Glow-worm Easicom 28CondensingGas88.5%
Glow-worm EASICOM 3 25rCondensingGas89.7%
Glow-worm EASICOM 3 25sCondensingGas89.7%
Glow-worm EASICOM 3 28c-A (H-GB)CondensingGas89.6%
Glow-worm Economy Plus 100fNon-CondensingGas72.0%
Glow-worm Economy Plus 24BNon-CondensingGas75.1%
Glow-worm Economy Plus 24FNon-CondensingGas77.2%
Glow-worm Economy Plus 30BNon-CondensingGas71.3%
Glow-worm Economy Plus 30CNon-CondensingGas72.4%
Glow-worm Economy Plus 30FNon-CondensingGas75.7%
Glow-worm Economy Plus 40BNon-CondensingGas71.9%
Glow-worm Economy Plus 40CNon-CondensingGas71.9%
Glow-worm Economy Plus 40FNon-CondensingGas77.0%
Glow-worm Economy Plus 50BNon-CondensingGas73.1%
Glow-worm Economy Plus 50CNon-CondensingGas72.4%
Glow-worm Economy Plus 50FNon-CondensingGas76.3%
Glow-worm Economy Plus 60BNon-CondensingGas75.4%
Glow-worm Economy Plus 60CNon-CondensingGas73.8%
Glow-worm Economy Plus 60FNon-CondensingGas75.8%
Glow-worm Economy Plus 75BNon-CondensingGas65.0%
Glow-worm Economy Plus 80FNon-CondensingGas77.6%
Glow-worm ENERGY 12rCondensingGas89.3%
Glow-worm ENERGY 12sCondensingGas89.3%
Glow-worm ENERGY 15rCondensingGas89.3%
Glow-worm ENERGY 15sCondensingGas89.3%
Glow-worm ENERGY 18rCondensingGas89.3%
Glow-worm ENERGY 18sCondensingGas89.3%
Glow-worm Energy 25cCondensingGas89.2%
Glow-worm ENERGY 25rCondensingGas89.3%
Glow-worm ENERGY 25sCondensingGas89.3%
Glow-worm Energy 30cCondensingGas89.2%
Glow-worm ENERGY 30rCondensingGas89.2%
Glow-worm ENERGY 30sCondensingGas89.2%
Glow-worm Energy 35 StoreCondensingGas89.4%
Glow-worm Energy 35cCondensingGas89.2%
Glow-worm Energysaver 30CondensingGas85.9%
Glow-worm Energysaver 30eCondensingGas85.9%
Glow-worm Energysaver 40CondensingGas86.0%
Glow-worm Energysaver 40eCondensingGas86.0%
Glow-worm Energysaver 40PCondensingLPG86.4%
Glow-worm Energysaver 50CondensingGas86.1%
Glow-worm Energysaver 50eCondensingGas86.1%
Glow-worm Energysaver 50PCondensingLPG86.5%
Glow-worm Energysaver 60CondensingGas86.2%
Glow-worm Energysaver 60eCondensingGas86.2%
Glow-worm Energysaver 60PCondensingLPG86.5%
Glow-worm Energysaver 70CondensingGas86.6%
Glow-worm Energysaver 80CondensingGas86.6%
Glow-worm Energysaver 80PCondensingLPG87.6%
Glow-worm Energysaver Combi 100CondensingGas89.2%
Glow-worm Energysaver Combi 80CondensingGas89.4%
Glow-worm Essential 24cCondensingGas89.2%
Glow-worm Essential 28cCondensingGas89.2%
Glow-worm Flexicom 12hxCondensingGas88.5%
Glow-worm Flexicom 15hxCondensingGas88.5%
Glow-worm Flexicom 18hxCondensingGas88.4%
Glow-worm Flexicom 18sxCondensingGas88.4%
Glow-worm Flexicom 24cxCondensingGas88.4%
Glow-worm Flexicom 24hxCondensingGas88.4%
Glow-worm Flexicom 30cxCondensingGas88.3%
Glow-worm Flexicom 30hxCondensingGas88.7%
Glow-worm Flexicom 30sxCondensingGas88.8%
Glow-worm Flexicom 35cxCondensingGas89.1%
Glow-worm Flexicom 35hxCondensingGas89.2%
Glow-worm Fuelsaver 100FNon-CondensingGas72.0%
Glow-worm Fuelsaver 25-30Non-CondensingGas65.0%
Glow-worm Fuelsaver 25-30BNon-CondensingGas65.0%
Glow-worm Fuelsaver 30-40Non-CondensingGas65.0%
Glow-worm Fuelsaver 30-40BNon-CondensingGas65.0%
Glow-worm Fuelsaver 30bmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 30brmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 30mk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 35fNon-CondensingGas68.0%
Glow-worm Fuelsaver 40-50Non-CondensingGas65.0%
Glow-worm Fuelsaver 40-50bNon-CondensingGas65.0%
Glow-worm Fuelsaver 40bmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 40brmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 40mk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 45fNon-CondensingGas68.0%
Glow-worm Fuelsaver 50bmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 50brmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 50mk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 55-60bNon-CondensingGas65.0%
Glow-worm Fuelsaver 55fNon-CondensingGas68.0%
Glow-worm Fuelsaver 60-70bNon-CondensingGas65.0%
Glow-worm Fuelsaver 60bmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 60brmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 60mk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 65fNon-CondensingGas68.0%
Glow-worm Fuelsaver 75bmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 75brmk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 75mk2Non-CondensingGas65.0%
Glow-worm Fuelsaver 80fNon-CondensingGas68.0%
Glow-worm Fuelsaver Complheat 30Non-CondensingGas76.5%
Glow-worm Fuelsaver Complheat 40Non-CondensingGas76.7%
Glow-worm Fuelsaver Complheat 55Non-CondensingGas76.4%
Glow-worm Fuelsaver Complheat 65Non-CondensingGas79.1%
Glow-worm Fuelsaver Complheat 80Non-CondensingGas79.0%
Glow-worm Fuelsaver Economy Plus 24BNon-CondensingGas65.0%
Glow-worm Fuelsaver Economy Plus 24FNon-CondensingGas68.0%
Glow-worm Fuelsaver Economy Plus 30BNon-CondensingGas65.0%
Glow-worm Fuelsaver Economy Plus 30FNon-CondensingGas68.0%
Glow-worm Fuelsaver Economy Plus 40BNon-CondensingGas65.0%
Glow-worm Fuelsaver Economy Plus 40CNon-CondensingGas65.0%
Glow-worm Fuelsaver Economy Plus 40FNon-CondensingGas68.0%
Glow-worm Fuelsaver Economy Plus 50CNon-CondensingGas65.0%
Glow-worm Fuelsaver Economy Plus 50FNon-CondensingGas68.0%
Glow-worm Fuelsaver Economy Plus 60BNon-CondensingGas65.0%
Glow-worm Fuelsaver Economy Plus 60CNon-CondensingGas65.0%
Glow-worm Fuelsaver Economy Plus 60FNon-CondensingGas68.0%
Glow-worm Fuelsaver Economy Plus 80FNon-CondensingGas68.0%
Glow-worm Galaxie 240/6Non-CondensingGas65.0%
Glow-worm Galaxie 246Non-CondensingGas65.0%
Glow-worm Glow-Worm 18siNon-CondensingGas76.8%
Glow-worm Hideaway 100Non-CondensingGas72.1%
Glow-worm Hideaway 100BNon-CondensingGas73.0%
Glow-worm Hideaway 100BFFNon-CondensingGas79.9%
Glow-worm Hideaway 100CFFNon-CondensingGas79.9%
Glow-worm Hideaway 115BFFNon-CondensingGas78.7%
Glow-worm Hideaway 115CFFNon-CondensingGas78.7%
Glow-worm Hideaway 120Non-CondensingGas73.0%
Glow-worm Hideaway 120BNon-CondensingGas72.0%
Glow-worm Hideaway 40Non-CondensingGas70.8%
Glow-worm Hideaway 40BNon-CondensingGas71.5%
Glow-worm Hideaway 40BFFNon-CondensingGas78.3%
Glow-worm Hideaway 40CFFNon-CondensingGas78.3%
Glow-worm Hideaway 50Non-CondensingGas71.0%
Glow-worm Hideaway 50BNon-CondensingGas71.4%
Glow-worm Hideaway 50BFFNon-CondensingGas78.2%
Glow-worm Hideaway 50CFFNon-CondensingGas78.2%
Glow-worm Hideaway 60Non-CondensingGas71.3%
Glow-worm Hideaway 60BNon-CondensingGas71.7%
Glow-worm Hideaway 60BFFNon-CondensingGas78.5%
Glow-worm Hideaway 60BLNon-CondensingGas65.0%
Glow-worm Hideaway 60CFFNon-CondensingGas78.5%
Glow-worm Hideaway 60LNon-CondensingGas65.0%
Glow-worm Hideaway 70Non-CondensingGas71.8%
Glow-worm Hideaway 70BNon-CondensingGas72.5%
Glow-worm Hideaway 70ofNon-CondensingGas65.0%
Glow-worm Hideaway 80Non-CondensingGas71.7%
Glow-worm Hideaway 80BNon-CondensingGas72.6%
Glow-worm Hideaway 80BFFNon-CondensingGas78.4%
Glow-worm Hideaway 80BLNon-CondensingGas65.0%
Glow-worm Hideaway 80CFFNon-CondensingGas78.4%
Glow-worm Hideaway 80LNon-CondensingGas65.0%
Glow-worm Hideaway 90Non-CondensingGas71.7%
Glow-worm Hideaway 90BNon-CondensingGas72.8%
Glow-worm Hideaway 90ofNon-CondensingGas65.0%
Glow-worm HOME 12rCondensingGas89.3%
Glow-worm HOME 12sCondensingGas89.3%
Glow-worm HOME 15rCondensingGas89.3%
Glow-worm HOME 15sCondensingGas89.3%
Glow-worm HOME 18rCondensingGas89.3%
Glow-worm HOME 18sCondensingGas89.3%
Glow-worm HOME 25cCondensingGas89.3%
Glow-worm HOME 25rCondensingGas89.3%
Glow-worm HOME 25sCondensingGas89.3%
Glow-worm HOME 30cCondensingGas89.3%
Glow-worm HOME 30rCondensingGas89.2%
Glow-worm HOME 35cCondensingGas89.3%
Glow-worm Inset BBU 40Non-CondensingGas75.5%
Glow-worm Inset BBU 50Non-CondensingGas77.6%
Glow-worm Majorca 240/6Non-CondensingGas65.0%
Glow-worm Majorca 246Non-CondensingGas65.0%
Glow-worm Majorca 340/6Non-CondensingGas65.0%
Glow-worm Majorca 340/6autoNon-CondensingGas65.0%
Glow-worm Majorca 346Non-CondensingGas65.0%
Glow-worm Micron 100FFNon-CondensingGas79.5%
Glow-worm Micron 120FFNon-CondensingGas78.1%
Glow-worm Micron 30 FFNon-CondensingGas78.3%
Glow-worm Micron 30FFNon-CondensingGas76.6%
Glow-worm Micron 40 FFNon-CondensingGas78.7%
Glow-worm Micron 40FFNon-CondensingGas77.3%
Glow-worm Micron 50FFNon-CondensingGas78.9%
Glow-worm Micron 60 FFNon-CondensingGas78.8%
Glow-worm Micron 60FFNon-CondensingGas77.2%
Glow-worm Micron 70 FFNon-CondensingGas78.3%
Glow-worm Micron 70FFNon-CondensingGas77.4%
Glow-worm Micron 80 FFNon-CondensingGas78.3%
Glow-worm Micron 80FFNon-CondensingGas77.2%
Glow-worm Micron100FFNon-CondensingGas77.5%
Glow-worm PROCOMBI ESSENTIAL 24c P – A (H-GB)CondensingLPG91.1%
Glow-worm PROCOMBI ESSENTIAL 35cCondensingGas89.7%
Glow-worm Royale 240/6Non-CondensingGas65.0%
Glow-worm Royale 246Non-CondensingGas65.0%
Glow-worm Saunier Duval SB30e ANon-CondensingGas79.3%
Glow-worm Saunier Duval SD30e ANon-CondensingGas79.2%
Glow-worm Spacesaver 20-30fNon-CondensingGas68.0%
Glow-worm Spacesaver 20-30rfNon-CondensingGas68.0%
Glow-worm Spacesaver 20-30rfsNon-CondensingGas68.0%
Glow-worm Spacesaver 22-30bNon-CondensingGas65.0%
Glow-worm Spacesaver 22-30fNon-CondensingGas65.0%
Glow-worm Spacesaver 30-40fNon-CondensingGas68.0%
Glow-worm Spacesaver 30-40rfNon-CondensingGas68.0%
Glow-worm Spacesaver 30-40rfsNon-CondensingGas68.0%
Glow-worm Spacesaver 30bmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 30brmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 30mk2Non-CondensingGas65.0%
Glow-worm Spacesaver 30rmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 38Non-CondensingGas65.0%
Glow-worm Spacesaver 38bfNon-CondensingGas65.0%
Glow-worm Spacesaver 40-50rfNon-CondensingGas68.0%
Glow-worm Spacesaver 40-50rfsNon-CondensingGas68.0%
Glow-worm Spacesaver 40bmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 40brmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 40fNon-CondensingGas68.0%
Glow-worm Spacesaver 40mk2Non-CondensingGas65.0%
Glow-worm Spacesaver 40rmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 45-60Non-CondensingGas65.0%
Glow-worm Spacesaver 45-60bNon-CondensingGas65.0%
Glow-worm Spacesaver 50-60rfNon-CondensingGas68.0%
Glow-worm Spacesaver 50-60rfsNon-CondensingGas68.0%
Glow-worm Spacesaver 50bfNon-CondensingGas65.0%
Glow-worm Spacesaver 50bmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 50fNon-CondensingGas68.0%
Glow-worm Spacesaver 50mk2Non-CondensingGas65.0%
Glow-worm Spacesaver 50rmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 52Non-CondensingGas65.0%
Glow-worm Spacesaver 60bmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 60brmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 60fNon-CondensingGas68.0%
Glow-worm Spacesaver 60mk2Non-CondensingGas65.0%
Glow-worm Spacesaver 60rmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 65-75fNon-CondensingGas68.0%
Glow-worm Spacesaver 75Non-CondensingGas65.0%
Glow-worm Spacesaver 75bfNon-CondensingGas65.0%
Glow-worm Spacesaver 80bmk2Non-CondensingGas65.0%
Glow-worm Spacesaver 80brmk2Non-CondensingGas65.0%
Glow-worm Spacesaver Complheat 60Non-CondensingGas72.0%
Glow-worm Spacesaver Complheat 70Non-CondensingGas72.0%
Glow-worm Spacesaver Kfb 20Non-CondensingGas68.0%
Glow-worm Spacesaver Kfb 60Non-CondensingGas68.0%
Glow-worm Spacesaver Kfb 70Non-CondensingGas68.0%
Glow-worm Suburban SuburbanNon-CondensingGas65.0%
Glow-worm Super 30Non-CondensingGas65.0%
Glow-worm Super 30bNon-CondensingGas65.0%
Glow-worm Super 40Non-CondensingGas65.0%
Glow-worm Super 40bNon-CondensingGas65.0%
Glow-worm Super 52Non-CondensingGas65.0%
Glow-worm Super 52bNon-CondensingGas65.0%
Glow-worm SUSTAIN 12rCondensingGas89.3%
Glow-worm SUSTAIN 12sCondensingGas89.3%
Glow-worm SUSTAIN 15rCondensingGas89.3%
Glow-worm SUSTAIN 15sCondensingGas89.3%
Glow-worm SUSTAIN 18rCondensingGas89.3%
Glow-worm SUSTAIN 18sCondensingGas89.3%
Glow-worm SUSTAIN 25cCondensingGas89.3%
Glow-worm SUSTAIN 30cCondensingGas89.3%
Glow-worm SUSTAIN 35cCondensingGas89.3%
Glow-worm Swiftflow 100Non-CondensingGas70.0%
Glow-worm Swiftflow 100 Honeywell valveNon-CondensingGas70.7%
Glow-worm Swiftflow 100 SIT valveNon-CondensingGas70.7%
Glow-worm Swiftflow 100eNon-CondensingGas76.6%
Glow-worm Swiftflow 120Non-CondensingGas73.1%
Glow-worm Swiftflow 125eNon-CondensingGas79.4%
Glow-worm Swiftflow 75Non-CondensingGas70.0%
Glow-worm Swiftflow 75 Honeywell valveNon-CondensingGas71.4%
Glow-worm Swiftflow 75 SIT valveNon-CondensingGas71.4%
Glow-worm Swiftflow 75eNon-CondensingGas76.5%
Glow-worm Swiftflow 80Non-CondensingGas70.0%
Glow-worm Swiftflow 80 Honeywell valveNon-CondensingGas73.1%
Glow-worm Swiftflow 80 SIT valveNon-CondensingGas73.1%
Glow-worm Swiftflow 80eNon-CondensingGas76.6%
Glow-worm Ultimate 100 FFNon-CondensingGas79.5%
Glow-worm Ultimate 100FFNon-CondensingGas77.5%
Glow-worm Ultimate 120FFNon-CondensingGas78.1%
Glow-worm Ultimate 2 25rCondensingGas89.3%
Glow-worm ULTIMATE 2 25sCondensingGas89.3%
Glow-worm ULTIMATE 2 30CCondensingGas89.2%
Glow-worm ULTIMATE 2 35cCondensingGas89.2%
Glow-worm Ultimate 24hCondensingGas88.4%
Glow-worm ULTIMATE 3 25r-A (H-GB)CondensingGas89.6%
Glow-worm ULTIMATE 3 25s-A (H-GB)CondensingGas89.7%
Glow-worm ULTIMATE 3 30c-A (H-GB)CondensingGas89.6%
Glow-worm ULTIMATE 3 35c-A (H-GB)CondensingGas89.7%
Glow-worm Ultimate 30BFNon-CondensingGas73.0%
Glow-worm Ultimate 30cCondensingGas88.9%
Glow-worm Ultimate 30FFNon-CondensingGas79.7%
Glow-worm Ultimate 30FF/LPNon-CondensingLPG78.0%
Glow-worm Ultimate 35cCondensingGas88.8%
Glow-worm Ultimate 40 FFNon-CondensingGas78.7%
Glow-worm Ultimate 40BFNon-CondensingGas72.1%
Glow-worm Ultimate 40FFNon-CondensingGas75.4%
Glow-worm Ultimate 40FF/LPNon-CondensingLPG78.0%
Glow-worm Ultimate 50 FFNon-CondensingGas78.8%
Glow-worm Ultimate 50BFNon-CondensingGas73.1%
Glow-worm Ultimate 50BF/LPNon-CondensingLPG74.8%
Glow-worm Ultimate 50FFNon-CondensingGas76.0%
Glow-worm Ultimate 50FF/LPNon-CondensingLPG80.1%
Glow-worm Ultimate 60 FFNon-CondensingGas79.4%
Glow-worm Ultimate 60BFNon-CondensingGas75.6%
Glow-worm Ultimate 60FFNon-CondensingGas76.6%
Glow-worm Ultimate 60FF/LPNon-CondensingLPG77.5%
Glow-worm Ultimate 70 FFNon-CondensingGas79.3%
Glow-worm Ultimate 70FFNon-CondensingGas77.1%
Glow-worm Ultimate 80 FFNon-CondensingGas79.4%
Glow-worm Ultimate 80bfNon-CondensingGas65.0%
Glow-worm Ultimate 80FFNon-CondensingGas76.3%
Glow-worm Ultimate 80FF/LPNon-CondensingLPG79.8%
Glow-worm Ultracom 12hxiCondensingGas88.7%
Glow-worm Ultracom 15hxiCondensingGas88.7%
Glow-worm Ultracom 18hxiCondensingGas88.6%
Glow-worm Ultracom 18sxiCondensingGas88.6%
Glow-worm Ultracom 2 12sxiCondensingGas89.5%
Glow-worm Ultracom 2 18sxiCondensingGas89.1%
Glow-worm Ultracom 2 24cxiCondensingGas89.0%
Glow-worm Ultracom 2 30cxiCondensingGas89.3%
Glow-worm Ultracom 2 30sxiCondensingGas89.4%
Glow-worm Ultracom 2 35 StoreCondensingGas89.4%
Glow-worm Ultracom 2 35cxiCondensingGas89.3%
Glow-worm Ultracom 24cxCondensingGas88.5%
Glow-worm Ultracom 24cxiCondensingGas88.5%
Glow-worm Ultracom 24hxiCondensingGas88.9%
Glow-worm Ultracom 30cxCondensingGas88.7%
Glow-worm Ultracom 30cxiCondensingGas88.5%
Glow-worm Ultracom 30hxiCondensingGas88.7%
Glow-worm Ultracom 30sxiCondensingGas88.8%
Glow-worm Ultracom 38cxiCondensingGas88.5%
Glow-worm Ultracom 38hxiCondensingGas89.2%
Glow-worm Ultrapower 100 SXICondensingGas89.2%
Glow-worm Ultrapower 170 SXICondensingGas89.3%
Glow-worm Xtrafast 120Non-CondensingGas78.6%
Glow-worm Xtrafast 96Non-CondensingGas79.4%
Glow-worm Xtramax ANon-CondensingGas78.9%
Glow-worm Xtramax HECondensingLPG90.2%
Grandee GCCF 15/23CondensingOil88.5%
Grandee GCCF 23/30CondensingOil88.1%
Grandee GCCW 15/22CondensingOil88.5%
Grandee GCCW 15/22 ExtCondensingOil88.5%
Grandee GCCW 23/28CondensingOil88.1%
Grandee GCCW 23/28 ExtCondensingOil88.1%
Grandee GCF 10-15CondensingOil89.5%
Grandee GCF 15/23CondensingOil90.2%
Grandee GCF 23/30CondensingOil89.8%
Grandee GCW 10-15CondensingOil89.5%
Grandee GCW 10-15 ExtCondensingOil89.5%
Grandee GCW 15/22CondensingOil90.2%
Grandee GCW 15/22 ExtCondensingOil90.2%
Grandee GCW 23/28CondensingOil89.8%
Grandee GCW 23/28 ExtCondensingOil89.8%
Grandee GSCF 10-15CondensingOil89.5%
Grandee GSCF 15/23CondensingOil90.2%
Grandee GSCF 23/30CondensingOil89.8%
Grandee GSCW 10-15CondensingOil89.5%
Grandee GSCW 10-15 ExtCondensingOil89.5%
Grandee GSCW 15/22CondensingOil90.2%
Grandee GSCW 15/22 ExtCondensingOil90.2%
Grandee GSCW 23/28CondensingOil89.8%
Grandee GSCW 23/28 ExtCondensingOil89.8%
Grant Combi 70 Mk IINon-CondensingOil83.0%
Grant Combi 70 V3Non-CondensingOil83.0%
Grant Combi 90 Mk IINon-CondensingOil83.9%
Grant Combi 90 V3Non-CondensingOil82.7%
Grant Combi MaxNon-CondensingOil82.2%
Grant Euroflame 90-120 BoilerhouseNon-CondensingOil84.4%
Grant Euroflame 90-120 OutdoorNon-CondensingOil84.4%
Grant Euroflame 90-120 System Kitchen UtilityNon-CondensingOil84.4%
Grant Euroflame Boilerhouse 50-70Non-CondensingOil84.7%
Grant Euroflame Boilerhouse 70-90Non-CondensingOil84.7%
Grant Euroflame Condensing Boilerhouse 50-70CondensingOil90.8%
Grant Euroflame Condensing Boilerhouse 70-90CondensingOil90.6%
Grant Euroflame Condensing Boilerhouse 90-120CondensingOil90.3%
Grant Euroflame Condensing Indoor 50-70CondensingOil90.8%
Grant Euroflame Condensing Indoor 70-90CondensingOil90.6%
Grant Euroflame Condensing Indoor 90-120CondensingOil90.3%
Grant Euroflame Condensing Module 50-70CondensingOil90.8%
Grant Euroflame Condensing Module 70-90CondensingOil90.6%
Grant Euroflame Condensing Module 90-120CondensingOil90.3%
Grant Euroflame Kitchen / Utility 50-70Non-CondensingOil84.7%
Grant Euroflame Kitchen / Utility 70-90Non-CondensingOil84.7%
Grant Euroflame Kitchen/Utility 90-120Non-CondensingOil84.4%
Grant Euroflame Outdoor Module 50-70Non-CondensingOil84.7%
Grant Euroflame Outdoor Module 70-90Non-CondensingOil84.7%
Grant Euroflame System 50-90Non-CondensingOil84.7%
Grant Multipass Boilerhouse 110-140Non-CondensingOil85.4%
Grant Multipass Boilerhouse 140-160Non-CondensingOil85.6%
Grant Multipass Boilerhouse 160-200Non-CondensingOil85.6%
Grant Multipass Boilerhouse 70-90Non-CondensingOil85.6%
Grant Multipass Boilerhouse 90-110Non-CondensingOil85.4%
Grant Multipass Kitchen 110-140Non-CondensingOil85.4%
Grant Multipass Kitchen 140-160Non-CondensingOil85.6%
Grant Multipass Kitchen 160-200Non-CondensingOil85.6%
Grant Multipass Kitchen 50-70Non-CondensingOil85.6%
Grant Multipass Kitchen 70-90Non-CondensingOil85.6%
Grant Multipass Kitchen 90-110Non-CondensingOil85.4%
Grant Multipass Outdoor 110-140Non-CondensingOil85.4%
Grant Multipass System 110-140Non-CondensingOil85.4%
Grant Multipass System 50-70Non-CondensingOil85.6%
Grant Multipass System 70-90Non-CondensingOil85.6%
Grant Multipass System 90-110Non-CondensingOil85.4%
Grant Outdoor Combi 90 V3Non-CondensingOil82.7%
Grant Outdoor Combi MaxNon-CondensingOil82.2%
Grant Outdoor Combi Mk IINon-CondensingOil83.9%
Grant Vortex 15CondensingOil91.1%
Grant Vortex 15 SCondensingOil91.1%
Grant Vortex 15-26 Kitchen BoilerCondensingOil91.9%
Grant Vortex 15-26S Kitchen BoilerCondensingOil91.9%
Grant Vortex 20CondensingOil91.5%
Grant Vortex 20 SCondensingOil91.5%
Grant Vortex 20G BoilerhouseCondensingOil92.9%
Grant Vortex 20G Boilerhouse SystemCondensingOil92.9%
Grant Vortex 20G Outdoor ModuleCondensingOil92.9%
Grant Vortex 20G Outdoor Module SystemCondensingOil92.9%
Grant Vortex 20G UtilityCondensingOil92.9%
Grant Vortex 20G Utility SystemCondensingOil92.9%
Grant Vortex 26CondensingOil91.9%
Grant Vortex 26 SCondensingOil91.9%
Grant Vortex 26-36 BoilerhouseCondensingOil93.3%
Grant Vortex 26-36 Boilerhouse SystemCondensingOil93.3%
Grant Vortex 26-36 Outdoor Module SystemCondensingOil93.3%
Grant Vortex 26-36 Utility BoilerCondensingOil93.3%
Grant Vortex 26-36-S Utility System BoilerCondensingOil93.3%
Grant Vortex 30G BoilerhouseCondensingOil92.5%
Grant Vortex 30G Boilerhouse SystemCondensingOil92.5%
Grant Vortex 30G Outdoor ModuleCondensingOil92.5%
Grant Vortex 30G Outdoor Module SystemCondensingOil92.5%
Grant Vortex 30G UtilityCondensingOil92.5%
Grant Vortex 30G Utility SystemCondensingOil92.5%
Grant Vortex 36CondensingOil93.3%
Grant Vortex 36SCondensingOil93.3%
Grant VORTEX BOILERHOUSE 15-21CondensingOil90.8%
Grant VORTEX BOILERHOUSE 21-26CondensingOil90.6%
Grant VORTEX BOILERHOUSE 26-35CondensingOil90.3%
Grant Vortex Condensing Combi 21CondensingOil89.5%
Grant Vortex Condensing Combi 26CondensingOil90.2%
Grant Vortex Condensing Combi 36CondensingOil91.6%
Grant Vortex Eco External 15-21CondensingOil90.8%
Grant Vortex Eco External 21-26CondensingOil90.6%
Grant Vortex Eco External 26-35CondensingOil90.3%
Grant Vortex Eco External System 15-21CondensingOil90.8%
Grant Vortex Eco External System 21-26CondensingOil90.6%
Grant Vortex Eco External System 26-35CondensingOil90.3%
Grant Vortex Eco Utility 15-21CondensingOil90.8%
Grant Vortex Eco Utility 21-26CondensingOil90.6%
Grant Vortex Eco Utility 26-35CondensingOil90.3%
Grant Vortex Eco Utility System 15-21CondensingOil90.8%
Grant Vortex Eco Utility System 21-26CondensingOil90.6%
Grant Vortex Eco Utility System 26-35CondensingOil90.3%
Grant Vortex Eco Wall Hung 12-16CondensingOil91.9%
Grant Vortex Eco Wall Hung 16-21CondensingOil91.6%
Grant Vortex Eco Wall Hung External 12-16CondensingOil91.9%
Grant Vortex Eco Wall Hung External 16-21CondensingOil91.6%
Grant Vortex Eco Wall Hung External System 12-16CondensingOil91.9%
Grant Vortex Eco Wall Hung External System 16-21CondensingOil91.6%
Grant Vortex Eco Wall Hung System 12-16CondensingOil91.9%
Grant Vortex Eco Wall Hung System 16-21CondensingOil91.6%
Grant Vortex Outdoor Combi 21CondensingOil89.5%
Grant Vortex Outdoor Condensing Combi 26CondensingOil90.2%
Grant Vortex Outdoor Condensing Combi 36CondensingOil91.6%
Grant Vortex Outdoor Module 15-21CondensingOil91.2%
Grant Vortex Outdoor Module 15-26CondensingOil91.9%
Grant Vortex Outdoor Module 26-36CondensingOil93.3%
Grant Vortex Outdoor Module 36-46CondensingOil90.7%
Grant Vortex Pro Boilerhouse 36-46CondensingOil90.7%
Grant Vortex Pro Boilerhouse 46-58CondensingOil91.7%
Grant Vortex Pro Boilerhouse 58-70CondensingOil91.4%
Grant Vortex PRO Combi XS 26CondensingOil90.0%
Grant Vortex Pro External 46-58CondensingOil91.7%
Grant Vortex Pro External 58-70CondensingOil91.4%
Grant Vortex Utility 15-21CondensingOil91.2%
Grant Vortex Utility 15-26CondensingOil91.9%
Grant Vortex Utility 36-46CondensingOil90.7%
Grant Vortex Utility 46-58CondensingOil91.7%
Grant Vortex Utility 58-70CondensingOil91.4%
Grant Vortex Utility System 15-26SCondensingOil91.9%
Grant Vortex Utility System 36-46SCondensingOil90.7%
Halstead 30/90Combi 30/90combiNon-CondensingGas70.0%
Halstead 40hNon-CondensingGas65.0%
Halstead 50hNon-CondensingGas65.0%
Halstead AceNon-CondensingGas76.2%
Halstead Ace aclNon-CondensingGas78.1%
Halstead Ace HE 24CondensingGas88.8%
Halstead Ace HE 30CondensingGas88.8%
Halstead Ace HE35CondensingGas89.3%
Halstead Ace HighNon-CondensingGas78.6%
Halstead Balmoral 45fNon-CondensingGas72.0%
Halstead Balmoral 65fNon-CondensingGas72.0%
Halstead Best 30Non-CondensingGas75.9%
Halstead Best 30 dbNon-CondensingGas78.1%
Halstead Best 40Non-CondensingGas75.6%
Halstead Best 40 dbNon-CondensingGas78.6%
Halstead Best 40 PNon-CondensingLPG80.4%
Halstead Best 50Non-CondensingGas76.4%
Halstead Best 50 dbNon-CondensingGas78.1%
Halstead Best 60Non-CondensingGas75.6%
Halstead Best 60 dbNon-CondensingGas79.2%
Halstead Best 60 PNon-CondensingLPG81.0%
Halstead Best 70 dbNon-CondensingGas78.5%
Halstead Best 80Non-CondensingGas76.2%
Halstead Blenheim 15/30Non-CondensingGas65.0%
Halstead Blenheim 30/40Non-CondensingGas65.0%
Halstead Blenheim 40Non-CondensingGas65.0%
Halstead Blenheim 40/50Non-CondensingGas65.0%
Halstead Blenheim 50Non-CondensingGas65.0%
Halstead Blenheim 50/60Non-CondensingGas65.0%
Halstead Blenheim 60/75Non-CondensingGas65.0%
Halstead Buckingham II BF100Non-CondensingGas65.0%
Halstead Buckingham II BF40Non-CondensingGas65.0%
Halstead Buckingham II BF50Non-CondensingGas65.0%
Halstead Buckingham II BF60Non-CondensingGas65.0%
Halstead Buckingham II BF70Non-CondensingGas65.0%
Halstead Buckingham II BF80Non-CondensingGas65.0%
Halstead Buckingham II CF100Non-CondensingGas65.0%
Halstead Buckingham II CF40Non-CondensingGas65.0%
Halstead Buckingham II CF50Non-CondensingGas65.0%
Halstead Buckingham II CF60Non-CondensingGas65.0%
Halstead Buckingham II CF70Non-CondensingGas65.0%
Halstead Buckingham II CF80Non-CondensingGas65.0%
Halstead Club HE 18CondensingGas88.9%
Halstead Eden cbCondensingGas88.5%
Halstead Eden CBX 24CondensingGas89.4%
Halstead Eden CBX 32CondensingGas89.0%
Halstead Eden CBX 38CondensingLPG89.6%
Halstead Eden sbCondensingGas88.7%
Halstead Eden SBX 30CondensingGas89.5%
Halstead Eden vbCondensingGas88.7%
Halstead Eden VBX 18CondensingGas89.5%
Halstead Eden VBX 30CondensingGas89.5%
Halstead FinestNon-CondensingGas77.3%
Halstead Finest fpxNon-CondensingLPG81.1%
Halstead Finest fxNon-CondensingGas79.3%
Halstead Finest GoldNon-CondensingGas77.3%
Halstead Finest Gold fgxNon-CondensingGas79.3%
Halstead Finest PlatinumNon-CondensingGas78.7%
Halstead Hero 30Non-CondensingGas79.2%
Halstead Hero 40Non-CondensingGas78.6%
Halstead Hero 50Non-CondensingGas78.5%
Halstead Hero 60Non-CondensingGas79.1%
Halstead Hero 75Non-CondensingGas78.4%
Halstead Hero 90Non-CondensingGas78.6%
Halstead iheat 20CondensingGas88.8%
Halstead Iheat 24cCondensingGas86.0%
Halstead iheat 25cCondensingGas88.8%
Halstead iheat 25sCondensingGas88.8%
Halstead Iheat 29cCondensingGas85.8%
Halstead iheat 30cCondensingGas88.8%
Halstead iheat 35cCondensingGas88.7%
Halstead Pulsejet 20CondensingGas88.7%
Halstead Pulsejet 32CondensingGas88.6%
Halstead Pulsejet 40CondensingGas88.6%
Halstead Quattro QuattroNon-CondensingGas70.0%
Halstead Triocombi triocombiNon-CondensingGas70.0%
Halstead Wickes 90Non-CondensingGas77.3%
Halstead Wickes AceNon-CondensingGas76.2%
Halstead Wickes Combi 102Non-CondensingGas78.6%
Halstead Wickes Combi 82Non-CondensingGas78.1%
Halstead Wickes Combi HE 24CondensingGas89.4%
Halstead Wickes LW 40 ciNon-CondensingGas78.6%
Halstead Wickes LW 40CiNon-CondensingGas75.3%
Halstead Wickes LW 50 ciNon-CondensingGas78.1%
Halstead Wickes LW 50CiNon-CondensingGas76.3%
Halstead Wickes LW 60 ciNon-CondensingGas79.2%
Halstead Wickes LW 60CiNon-CondensingGas75.6%
Heating World Group Beta 15/17 WMNon-CondensingOil70.0%
Heating World Group Beta 15/19Non-CondensingOil70.0%
Heating World Group Beta 42339Non-CondensingOil70.0%
Heating World Group Flamevector SHFS 12/18 BFNon-CondensingOil85.6%
Heating World Group Flamevector SHFS 12/18 CFNon-CondensingOil85.6%
Heating World Group Flamevector SHFS 18/21 BFNon-CondensingOil82.5%
Heating World Group Flamevector SHFS 18/21 CFNon-CondensingOil82.5%
Heating World Group Flamevector SHI 12/18 BFNon-CondensingOil85.6%
Heating World Group Flamevector SHI 12/18 CFNon-CondensingOil85.6%
Heating World Group Flamevector SHI 18/21 BFNon-CondensingOil82.5%
Heating World Group Flamevector SHI 18/21 CFNon-CondensingOil82.5%
Heating World Group Grandee 1.40Non-CondensingOil84.2%
Heating World Group Grandee 1.50Non-CondensingOil82.5%
Heating World Group Grandee 1.60Non-CondensingOil82.5%
Heating World Group Grandee 1S 12/18 BFNon-CondensingOil85.6%
Heating World Group Grandee 1S 12/18 BF EXTNon-CondensingOil85.6%
Heating World Group Grandee 1S 12/18 CFNon-CondensingOil85.6%
Heating World Group Grandee 2.70Non-CondensingOil83.3%
Heating World Group Grandee 2.80Non-CondensingOil83.3%
Heating World Group Grandee 2S 18/22 BFNon-CondensingOil85.6%
Heating World Group Grandee 2S 18/22 BF EXTNon-CondensingOil85.6%
Heating World Group Grandee 2S 18/22 CFNon-CondensingOil85.6%
Heating World Group Grandee 3.100Non-CondensingOil83.3%
Heating World Group Grandee 3.90Non-CondensingOil83.3%
Heating World Group Grandee 3S 22/27 BFNon-CondensingOil85.6%
Heating World Group Grandee 3S 22/27 BF EXTNon-CondensingOil85.6%
Heating World Group Grandee 3S 22/27 CFNon-CondensingOil85.6%
Heating World Group Grandee 4.40Non-CondensingOil84.2%
Heating World Group Grandee 4.40 BFNon-CondensingOil84.2%
Heating World Group Grandee 4.50Non-CondensingOil82.5%
Heating World Group Grandee 4.50 BFNon-CondensingOil82.5%
Heating World Group Grandee 4.60Non-CondensingOil82.5%
Heating World Group Grandee 4.60 BFNon-CondensingOil82.5%
Heating World Group Grandee 5.40Non-CondensingOil84.2%
Heating World Group Grandee 5.40 BFNon-CondensingOil84.2%
Heating World Group Grandee 5.50Non-CondensingOil82.5%
Heating World Group Grandee 5.50 BFNon-CondensingOil82.5%
Heating World Group Grandee 5.60Non-CondensingOil82.5%
Heating World Group Grandee 5.60 BFNon-CondensingOil82.5%
Heating World Group Grandee 5S 12/18 BFNon-CondensingOil85.6%
Heating World Group Grandee 5S 12/18 CFNon-CondensingOil85.6%
Heating World Group Grandee 6.60Non-CondensingOil84.5%
Heating World Group Grandee 6.60 BFNon-CondensingOil84.5%
Heating World Group Grandee 6.70Non-CondensingOil84.5%
Heating World Group Grandee 6.70 BFNon-CondensingOil84.5%
Heating World Group Grandee 6.80Non-CondensingOil84.5%
Heating World Group Grandee 6.80 BFNon-CondensingOil84.5%
Heating World Group Grandee 6S 15/23 BFNon-CondensingOil84.5%
Heating World Group Grandee 6S 15/23 CFNon-CondensingOil84.5%
Heating World Group Grandee 7.100Non-CondensingOil84.5%
Heating World Group Grandee 7.100 BFNon-CondensingOil84.5%
Heating World Group Grandee 7.110Non-CondensingOil84.5%
Heating World Group Grandee 7.110 BFNon-CondensingOil84.5%
Heating World Group Grandee 7.90Non-CondensingOil84.5%
Heating World Group Grandee 7.90 BFNon-CondensingOil84.5%
Heating World Group Grandee 7S 26/32 BFNon-CondensingOil84.5%
Heating World Group Grandee 7S 26/32 CFNon-CondensingOil84.5%
Heating World Group Grandee 8.120Non-CondensingOil84.5%
Heating World Group Grandee 8.120 BFNon-CondensingOil84.5%
Heating World Group Grandee 8.135Non-CondensingOil84.5%
Heating World Group Grandee 8.135 BFNon-CondensingOil84.5%
Heating World Group Grandee 8.150Non-CondensingOil84.5%
Heating World Group Grandee 8.150 BFNon-CondensingOil84.5%
Heating World Group Grandee 8S 35/40 BFNon-CondensingOil84.5%
Heating World Group Grandee 8S 35/40 CFNon-CondensingOil84.5%
Heating World Group Grandee 9S 40/50 BFNon-CondensingOil84.5%
Heating World Group Grandee 9S 40/50 CFNon-CondensingOil84.5%
Heating World Group Grandee Combi Compact SFS 15-20 CFNon-CondensingOil82.6%
Heating World Group Grandee Combi Compact SFS 15/20 BFNon-CondensingOil82.6%
Heating World Group Grandee Combi Condensing External FS 15/23CondensingOil88.5%
Heating World Group Grandee Combi Condensing External FS 23/30CondensingOil88.1%
Heating World Group Grandee Combi Condensing External W 15/22CondensingOil88.5%
Heating World Group Grandee Combi Condensing External W 23/28CondensingOil88.1%
Heating World Group Grandee Combi Condensing FS 15/23CondensingOil88.5%
Heating World Group Grandee Combi Condensing FS 23/30CondensingOil88.1%
Heating World Group Grandee Combi Condensing W 15/22CondensingOil88.5%
Heating World Group Grandee Combi Condensing W 23/28CondensingOil88.1%
Heating World Group Grandee Combi Floor 15-20Non-CondensingOil82.6%
Heating World Group Grandee Combi Floor 15-20 BFNon-CondensingOil82.6%
Heating World Group Grandee Combi SFS 15/20 BFNon-CondensingOil82.6%
Heating World Group Grandee Combi SFS 15/20 CFNon-CondensingOil82.6%
Heating World Group Grandee Combi SFS 20/25 BFNon-CondensingOil83.2%
Heating World Group Grandee Combi SFS 20/25 CFNon-CondensingOil83.2%
Heating World Group Grandee Combi SFS 25/29 BFNon-CondensingOil83.5%
Heating World Group Grandee Combi SFS 25/29 CFNon-CondensingOil83.5%
Heating World Group Grandee Combi SW 15/20 BFNon-CondensingOil82.8%
Heating World Group Grandee Combi SW 15/20 CFNon-CondensingOil82.8%
Heating World Group Grandee Combi SW 20/24 BFNon-CondensingOil83.4%
Heating World Group Grandee Combi SW 20/24 CFNon-CondensingOil83.4%
Heating World Group Grandee Combi SW 24/27 BFNon-CondensingOil83.9%
Heating World Group Grandee Combi SW 24/27 CFNon-CondensingOil83.9%
Heating World Group Grandee Standard Condensing External FS 15/23CondensingOil90.2%
Heating World Group Grandee Standard Condensing External FS 23/30CondensingOil89.8%
Heating World Group Grandee Standard Condensing External W 15/22CondensingOil90.2%
Heating World Group Grandee Standard Condensing External W 23/28CondensingOil89.8%
Heating World Group Grandee Standard Condensing FS 15/23CondensingOil90.2%
Heating World Group Grandee Standard Condensing FS 23/30CondensingOil89.8%
Heating World Group Grandee Standard Condensing W 15/22CondensingOil90.2%
Heating World Group Grandee Standard Condensing W 23/28CondensingOil89.8%
Heating World Group Grandee System Condensing External FS 15/23CondensingOil90.2%
Heating World Group Grandee System Condensing External FS 23/30CondensingOil89.8%
Heating World Group Grandee System Condensing External W 15/22CondensingOil90.2%
Heating World Group Grandee System Condensing External W 23/28CondensingOil89.8%
Heating World Group Grandee System Condensing FS 15/23CondensingOil90.2%
Heating World Group Grandee System Condensing FS 23/30CondensingOil89.8%
Heating World Group Grandee System Condensing W 15/22CondensingOil90.2%
Heating World Group Grandee System Condensing W 23/28CondensingOil89.8%
Heating World Group Sorrento 12/15Non-CondensingOil84.2%
Heating World Group Sorrento 15/18Non-CondensingOil82.5%
Heating World Group Sorrento 18/21Non-CondensingOil82.5%
Heating World Group Sorrento SFS 12/18 BFNon-CondensingOil85.6%
Heating World Group Sorrento SFS 12/18 CFNon-CondensingOil85.6%
Heating World Group Sorrento SFS 18/21 BFNon-CondensingOil82.5%
Heating World Group Sorrento SFS 18/21 CFNon-CondensingOil82.5%
Heating World Group Sorrento SHI 12/18 BFNon-CondensingOil85.6%
Heating World Group Sorrento SHI 12/18 CFNon-CondensingOil85.6%
Heating World Group Sorrento SHI 18/21 BFNon-CondensingOil82.5%
Heating World Group Sorrento SHI 18/21 CFNon-CondensingOil82.5%
Heatline CAPRIZ 2 24cCondensingGas89.2%
Heatline CAPRIZ 2 28cCondensingGas89.2%
Heatline Capriz 25CondensingGas85.6%
Heatline Capriz 25SCondensingGas85.7%
Heatline Capriz 28CondensingGas85.7%
Heatline Capriz 28SCondensingGas85.8%
Heatline CaprizPlus 24CondensingGas88.9%
Heatline CaprizPlus 24aCondensingGas88.9%
Heatline CaprizPlus 28CondensingGas88.8%
Heatline CaprizPlus 28aCondensingGas88.5%
Heatline MONZA 2 24cCondensingGas89.2%
Heatline MONZA 2 28cCondensingGas89.2%
Heatline Monza 24CondensingGas88.9%
Heatline Monza 24aCondensingGas88.9%
Heatline Monza 28CondensingGas88.8%
Heatline Monza 28aCondensingGas88.5%
Heatline Sargon 18SCondensingGas88.5%
Heatline Sargon 20SCondensingGas88.5%
Heatline Sargon 24CondensingGas88.4%
Heatline Sargon 24SCondensingGas88.5%
Heatline Sargon 30CondensingGas88.4%
Heatline Sargon 30SCondensingGas88.5%
Heatline Sargon 35CondensingGas88.4%
Heatline Solaris 24 pcsCondensingGas88.7%
Heatline Vizo 24CondensingGas85.5%
Heatline Vizo 28CondensingGas86.1%
Heatline Vizo Plus 24CondensingGas88.4%
HEB Boilers 60/80 OptionNon-CondensingOil80.8%
Hepworth Heating Economy 30FNon-CondensingGas72.0%
Hepworth Heating Economy 40FNon-CondensingGas72.0%
Hepworth Heating Economy 50FNon-CondensingGas72.0%
Hepworth Heating EnviroPlus F24eCondensingGas89.1%
Hepworth Heating Halstead Buckingham 4 100BFFNon-CondensingGas79.9%
Hepworth Heating Halstead Buckingham 4 100CFFNon-CondensingGas79.9%
Hepworth Heating Halstead Buckingham 4 115BFFNon-CondensingGas78.7%
Hepworth Heating Halstead Buckingham 4 115CFFNon-CondensingGas78.7%
Hepworth Heating Halstead Buckingham 4 40BFFNon-CondensingGas78.3%
Hepworth Heating Halstead Buckingham 4 40CFFNon-CondensingGas78.3%
Hepworth Heating Halstead Buckingham 4 50BFFNon-CondensingGas78.2%
Hepworth Heating Halstead Buckingham 4 50CFFNon-CondensingGas78.2%
Hepworth Heating Halstead Buckingham 4 60BFFNon-CondensingGas78.5%
Hepworth Heating Halstead Buckingham 4 60CFFNon-CondensingGas78.5%
Hepworth Heating Halstead Buckingham 4 80BFFNon-CondensingGas78.4%
Hepworth Heating Halstead Buckingham 4 80CFFNon-CondensingGas78.4%
Hepworth Heating Halstead Buckingham III BF 60Non-CondensingGas71.7%
Hepworth Heating Halstead Buckingham III BF100Non-CondensingGas73.0%
Hepworth Heating Halstead Buckingham III BF120Non-CondensingGas72.0%
Hepworth Heating Halstead Buckingham III BF40Non-CondensingGas71.5%
Hepworth Heating Halstead Buckingham III BF50Non-CondensingGas71.4%
Hepworth Heating Halstead Buckingham III BF70Non-CondensingGas72.5%
Hepworth Heating Halstead Buckingham III BF80Non-CondensingGas72.6%
Hepworth Heating Halstead Buckingham III CF100Non-CondensingGas72.1%
Hepworth Heating Halstead Buckingham III CF120Non-CondensingGas73.0%
Hepworth Heating Halstead Buckingham III CF40Non-CondensingGas70.8%
Hepworth Heating Halstead Buckingham III CF50Non-CondensingGas71.0%
Hepworth Heating Halstead Buckingham III CF60Non-CondensingGas71.3%
Hepworth Heating Halstead Buckingham III CF70Non-CondensingGas71.8%
Hepworth Heating Halstead Buckingham III CF80Non-CondensingGas71.7%
Hermann Srl Eura 32 SENon-CondensingGas79.3%
Hermann Srl Eura CondensingCondensingGas88.5%
Hermann Srl Euromini 24 SENon-CondensingGas79.9%
Hermann Srl Supermicra 24 SENon-CondensingGas78.7%
Hermann Srl Supermicra 30 SENon-CondensingGas80.0%
Hoval TopGas (30)CondensingGas88.2%
Hoval TopGas (35)CondensingGas88.0%
Hoval TopGas (45)CondensingGas88.0%
Hoval TopGas (60)CondensingGas88.0%
HRM Boilers Starflow 50/85Non-CondensingOil83.4%
HRM Boilers Starflow 85/110Non-CondensingOil80.0%
HRM Boilers Wallstar 12/14Non-CondensingOil84.0%
HRM Boilers Wallstar 12/15 11Non-CondensingOil84.2%
HRM Boilers Wallstar 15/19Non-CondensingOil81.8%
HRM Boilers Wallstar 15/20 12Non-CondensingOil85.3%
HRM Boilers Wallstar 20/24Non-CondensingOil81.4%
HRM Boilers Wallstar 20/25 13Non-CondensingOil85.6%
HRM Boilers Wallstar 25/19 20Non-CondensingOil83.3%
HRM Boilers Wallstar System 12/15 System 11Non-CondensingOil85.3%
HRM Boilers Wallstar System 15/20 System 12Non-CondensingOil85.3%
HRM Boilers Weybourne 50/70Non-CondensingOil85.6%
HRM Boilers Weybourne 70/95Non-CondensingOil85.6%
HRM Wallstar 12/14 Condensing aCondensingOil89.7%
HRM Wallstar 15/19 Condensing aCondensingOil89.6%
HRM Wallstar 15/19 Condensing EcoCondensingOil86.0%
HRM Wallstar 15/19 Condensing EOGBCondensingOil85.2%
HRM Wallstar 20/24 Condensing ACondensingOil91.8%
HRM Wallstar 20/24 Condensing EcoCondensingOil85.2%
HRM Wallstar 20/24 Condensing EOGBCondensingOil85.2%
HRM Wallstar CombiCondensingOil87.0%
HRM Wallstar System 15/19 Condensing aCondensingOil89.6%
HRM Wallstar System 15/19 Condensing EcoCondensingOil86.0%
HRM Wallstar System 15/19 Condensing EOGBCondensingOil85.2%
HRM X-Ternal 15/19 Condensing aCondensingOil89.6%
HRM X-Ternal 15/19 Condensing EcoCondensingOil86.0%
HRM X-Ternal 15/19 Condensing EOGBCondensingOil85.2%
HRM X-Ternal System 12/14 Condensing aCondensingOil89.7%
Husqvarna Husqvarna 8AW/DNon-CondensingOil65.0%
Hyrdoline B24CondensingGas85.6%
i 24CondensingGas89.0%
i 30CondensingGas89.0%
i 35CondensingGas88.9%
i-mini 24CondensingGas89.0%
i-mini 30CondensingGas89.0%
i-mini C24CondensingGas89.6%
i-mini C30CondensingGas89.6%
ICI Caldaie Solar C25CondensingGas89.1%
ICI Caldaie Solar C31CondensingGas88.8%
ICI Caldaie Solar Micro 24FNon-CondensingGas80.3%
ICI Caldaie Solar Micro 28FNon-CondensingGas80.1%
ICI Caldaie Solar System 24FNon-CondensingGas80.4%
ICI Caldaie Solar System 28FNon-CondensingGas80.2%
ICI Caldaie Solar System C25CondensingGas89.2%
ICI Caldaie Solar System C31CondensingGas88.9%
icon Heating Base Cube 24/35 UKCondensingGas88.5%
icon Heating Base Cube 30/35 UKCondensingGas88.7%
icon Heating Base Cube Duo 24/35 UKCondensingGas88.5%
Ideal Buccaneer GTE4/OILNon-CondensingOil85.6%
Ideal Buccaneer GTE5/OILNon-CondensingOil85.6%
Ideal Buccaneer GTE6/OILNon-CondensingOil85.6%
Ideal C 80FFNon-CondensingGas78.4%
Ideal C 95FFNon-CondensingGas78.5%
Ideal Classic 24CondensingGas88.9%
Ideal Classic 30CondensingGas89.0%
Ideal Classic FF 3100Non-CondensingGas78.0%
Ideal Classic FF 330Non-CondensingGas79.4%
Ideal Classic FF 340Non-CondensingGas78.6%
Ideal Classic FF 340 LFNon-CondensingGas79.1%
Ideal Classic FF 350Non-CondensingGas79.6%
Ideal Classic FF 350 LFNon-CondensingGas78.4%
Ideal Classic FF 350 PNon-CondensingLPG81.8%
Ideal Classic FF 360Non-CondensingGas78.3%
Ideal Classic FF 360 LFNon-CondensingGas79.1%
Ideal Classic FF 360 PNon-CondensingLPG80.2%
Ideal Classic FF 370Non-CondensingGas78.5%
Ideal Classic FF 380Non-CondensingGas78.1%
Ideal Classic FF 380 PNon-CondensingLPG79.9%
Ideal Classic FF2100Non-CondensingGas76.7%
Ideal Classic FF230Non-CondensingGas77.2%
Ideal Classic FF240Non-CondensingGas76.2%
Ideal Classic FF250Non-CondensingGas76.7%
Ideal Classic FF250PNon-CondensingLPG81.7%
Ideal Classic FF260Non-CondensingGas76.9%
Ideal Classic FF260PNon-CondensingLPG78.5%
Ideal Classic FF270Non-CondensingGas77.2%
Ideal Classic FF275PNon-CondensingLPG77.4%
Ideal Classic FF280Non-CondensingGas76.1%
Ideal Classic HE 12CondensingGas86.6%
Ideal Classic HE 15CondensingGas85.9%
Ideal Classic HE 15 PCondensingLPG88.2%
Ideal Classic HE 18CondensingGas86.6%
Ideal Classic HE 18 PCondensingLPG87.3%
Ideal Classic HE 9CondensingGas86.4%
Ideal Classic LX FF230Non-CondensingGas77.2%
Ideal Classic LX FF240Non-CondensingGas76.2%
Ideal Classic LX FF250Non-CondensingGas76.7%
Ideal Classic LX FF250PNon-CondensingLPG81.7%
Ideal Classic LX FF260Non-CondensingGas76.9%
Ideal Classic LX FF260PNon-CondensingLPG78.5%
Ideal Classic LX FF270Non-CondensingGas77.2%
Ideal Classic LX FF275PNon-CondensingLPG77.4%
Ideal Classic LX FF280Non-CondensingGas76.5%
Ideal Classic LX RS230Non-CondensingGas71.2%
Ideal Classic LX RS240Non-CondensingGas73.2%
Ideal Classic LX RS245PNon-CondensingLPG73.9%
Ideal Classic LX RS250Non-CondensingGas72.3%
Ideal Classic LX RS255PNon-CondensingLPG72.8%
Ideal Classic LX RS260Non-CondensingGas72.3%
Ideal Classic RS 230Non-CondensingGas71.2%
Ideal Classic RS 240Non-CondensingGas73.2%
Ideal Classic RS 245PNon-CondensingLPG73.9%
Ideal Classic RS 250Non-CondensingGas72.3%
Ideal Classic RS 255PNon-CondensingLPG72.8%
Ideal Classic RS 260Non-CondensingGas72.3%
Ideal Classic RS 330Non-CondensingGas78.3%
Ideal Classic RS 340Non-CondensingGas78.9%
Ideal Classic RS 350Non-CondensingGas79.9%
Ideal Classic RS 360Non-CondensingGas79.0%
Ideal Classic SE12 FFNon-CondensingGas78.6%
Ideal Classic SE12 FF SilverNon-CondensingGas78.6%
Ideal Classic SE12 RSNon-CondensingGas78.9%
Ideal Classic SE15 FFNon-CondensingGas79.6%
Ideal Classic SE15 FF SilverNon-CondensingGas79.6%
Ideal Classic SE15 RSNon-CondensingGas79.9%
Ideal Classic SE18 FFNon-CondensingGas78.3%
Ideal Classic SE18 FF SilverNon-CondensingGas78.3%
Ideal Classic SE18 RSNon-CondensingGas79.0%
Ideal Classic SE21 FFNon-CondensingGas78.5%
Ideal Classic SE21 FF SilverNon-CondensingGas78.5%
Ideal Classic SE24 FFNon-CondensingGas78.1%
Ideal Classic SE24 FF SilverNon-CondensingGas78.1%
Ideal Classic SE30 FFNon-CondensingGas78.0%
Ideal Classic SE30 FF SilverNon-CondensingGas78.0%
Ideal Classic SE9 FFNon-CondensingGas79.4%
Ideal Classic SE9 FF SilverNon-CondensingGas79.4%
Ideal Classic SE9 RSNon-CondensingGas78.3%
Ideal Classic Slimline FF 330Non-CondensingGas79.9%
Ideal Classic Slimline FF 340Non-CondensingGas79.2%
Ideal Classic Slimline FF 350Non-CondensingGas79.9%
Ideal Classic Slimline FF 360Non-CondensingGas79.7%
Ideal Classic Slimline SE12 FFNon-CondensingGas79.2%
Ideal Classic Slimline SE15 FFNon-CondensingGas79.9%
Ideal Classic Slimline SE18 FFNon-CondensingGas79.7%
Ideal Classic Slimline SE9 FFNon-CondensingGas79.9%
Ideal Concord CX40Non-CondensingGas72.0%
Ideal Concord CX50Non-CondensingGas72.4%
Ideal Concord CX60Non-CondensingGas73.5%
Ideal Concord CXA 40/HNon-CondensingGas79.9%
Ideal Concord CXA 50/HNon-CondensingGas79.9%
Ideal Concord CXA 60/HNon-CondensingGas79.8%
Ideal Concord CXA40Non-CondensingGas76.0%
Ideal Concord CXA50Non-CondensingGas76.4%
Ideal Concord CXA60Non-CondensingGas77.5%
Ideal Concord CXC48CondensingGas85.4%
Ideal Concord CXC70CondensingGas85.2%
Ideal Concord CXD40Non-CondensingGas76.2%
Ideal Concord CXD50Non-CondensingGas76.2%
Ideal Concord CXD60Non-CondensingGas77.7%
Ideal Concord CXS 40/HNon-CondensingGas80.4%
Ideal Concord CXS 50/HNon-CondensingGas80.1%
Ideal Concord CXS 60/HNon-CondensingGas80.3%
Ideal Concord CXS40Non-CondensingGas76.2%
Ideal Concord CXS50Non-CondensingGas76.2%
Ideal Concord CXS60Non-CondensingGas77.7%
Ideal Concord CXSD 40/HNon-CondensingGas80.4%
Ideal Concord CXSD 50/HNon-CondensingGas80.1%
Ideal Concord CXSD 60/HNon-CondensingGas80.3%
Ideal Concord CXSD40Non-CondensingGas76.2%
Ideal Concord CXSD50Non-CondensingGas76.2%
Ideal Concord CXSD60Non-CondensingGas77.7%
Ideal Elise H15CondensingGas89.7%
Ideal Elise H24CondensingGas88.8%
Ideal Esprit 2 24CondensingGas88.7%
Ideal Esprit 2 30CondensingGas88.7%
Ideal Esprit 2 35CondensingGas88.7%
Ideal Esprit Eco 24CondensingGas88.9%
Ideal Esprit Eco 30CondensingGas89.0%
Ideal Esprit HE 24CondensingGas88.9%
Ideal Esprit HE 30CondensingGas88.9%
Ideal Esprit HE 35CondensingGas88.9%
Ideal Evomax 30CondensingGas89.6%
Ideal Evomax 30PCondensingLPG90.6%
Ideal Evomax 40CondensingGas89.3%
Ideal Evomax 40PCondensingLPG90.3%
Ideal Evomax 60CondensingGas89.4%
Ideal Evomax 60PCondensingLPG90.5%
Ideal excel HE C24CondensingGas85.9%
Ideal excel HE C28CondensingGas85.9%
Ideal excel HE C32CondensingGas85.9%
Ideal Exclusive 24CondensingGas88.9%
Ideal Exclusive 30CondensingGas89.0%
Ideal Exclusive 35CondensingGas89.0%
Ideal Icos HE 12CondensingGas88.7%
Ideal icos HE15CondensingGas89.7%
Ideal icos HE18CondensingGas89.4%
Ideal icos HE24CondensingGas88.8%
Ideal Icos HE30CondensingGas89.1%
Ideal Icos HE36CondensingGas89.6%
Ideal icos m3080CondensingGas88.8%
Ideal icos System HE 15CondensingGas89.7%
Ideal icos System HE 24CondensingGas88.8%
Ideal icos system m3080CondensingGas88.8%
Ideal Imax W45CondensingGas88.9%
Ideal Imax W45PCondensingLPG89.8%
Ideal Imax W60CondensingGas89.1%
Ideal Imax W60PCondensingLPG90.1%
Ideal Independent + C24CondensingGas89.0%
Ideal Independent + C30CondensingGas89.0%
Ideal Independent + C35CondensingGas88.9%
Ideal INDEPENDENT + COMBI 24CondensingGas89.6%
Ideal INDEPENDENT + COMBI 30CondensingGas89.6%
Ideal INDEPENDENT + COMBI 30PCondensingLPG90.7%
Ideal INDEPENDENT + COMBI 35CondensingGas89.6%
Ideal Independent C24CondensingGas89.0%
Ideal Independent C30CondensingGas89.0%
Ideal Independent C35CondensingGas88.9%
Ideal INDEPENDENT COMBI 24CondensingGas89.6%
Ideal INDEPENDENT COMBI 30CondensingGas89.6%
Ideal INDEPENDENT COMBI 30PCondensingLPG90.7%
Ideal INDEPENDENT COMBI 35CondensingGas89.6%
Ideal Independent System 15CondensingGas89.3%
Ideal Independent System 18CondensingGas89.2%
Ideal Independent System 24CondensingGas89.5%
Ideal Independent System 30CondensingGas89.6%
Ideal INDEPENDENT SYSTEM S15CondensingGas89.4%
Ideal INDEPENDENT SYSTEM S18CondensingGas89.6%
Ideal INDEPENDENT SYSTEM S24CondensingGas89.8%
Ideal INDEPENDENT SYSTEM S30CondensingGas89.5%
Ideal INDEPENDENT SYSTEM S30PCondensingLPG90.5%
Ideal INSTINCT 24CondensingGas88.9%
Ideal INSTINCT 30CondensingGas89.0%
Ideal INSTINCT 35CondensingGas88.9%
Ideal Isar HE 30 HE30CondensingGas88.7%
Ideal isar HE24CondensingGas88.7%
Ideal isar HE30CondensingGas88.7%
Ideal isar HE35CondensingGas88.7%
Ideal isar m30100CondensingGas88.7%
Ideal istor HE260CondensingGas89.4%
Ideal istor HE325CondensingGas89.5%
Ideal LOGIC + COMBI C24CondensingGas89.6%
Ideal LOGIC + COMBI C30CondensingGas89.6%
Ideal LOGIC + COMBI C30PCondensingLPG90.7%
Ideal LOGIC + COMBI C35CondensingGas89.6%
Ideal Logic + Heat 12CondensingGas89.4%
Ideal Logic + Heat 15CondensingGas89.3%
Ideal Logic + Heat 18CondensingGas89.2%
Ideal Logic + Heat 24CondensingGas89.5%
Ideal Logic + Heat 30CondensingGas89.6%
Ideal LOGIC + HEAT H12CondensingGas89.4%
Ideal LOGIC + HEAT H15CondensingGas89.4%
Ideal LOGIC + HEAT H18CondensingGas89.6%
Ideal LOGIC + HEAT H24CondensingGas89.8%
Ideal LOGIC + HEAT H30CondensingGas89.5%
Ideal LOGIC + HEAT H30PCondensingLPG90.5%
Ideal Logic + System 15CondensingGas89.3%
Ideal Logic + System 18CondensingGas89.2%
Ideal Logic + System 24CondensingGas89.5%
Ideal Logic + System 30CondensingGas89.6%
Ideal LOGIC + SYSTEM S15CondensingGas89.4%
Ideal LOGIC + SYSTEM S18CondensingGas89.6%
Ideal LOGIC + SYSTEM S24CondensingGas89.8%
Ideal LOGIC + SYSTEM S30CondensingGas89.5%
Ideal LOGIC + SYSTEM S30PCondensingLPG90.5%
Ideal Logic Code Combi 26CondensingGas89.0%
Ideal Logic Code Combi 33CondensingGas89.0%
Ideal Logic Code Combi 38CondensingGas88.9%
Ideal Logic Code Combi ES 26CondensingGas89.0%
Ideal Logic Code Combi ES 33CondensingGas89.0%
Ideal Logic Code Combi ES 38CondensingGas88.9%
Ideal LOGIC CODE COMBI ESP1 26CondensingGas89.6%
Ideal LOGIC CODE COMBI ESP1 33CondensingGas89.6%
Ideal LOGIC CODE COMBI ESP1 33PCondensingLPG90.7%
Ideal LOGIC CODE COMBI ESP1 38CondensingGas89.6%
Ideal LOGIC CODE COMBI ESP1 38PCondensingLPG90.7%
Ideal Logic combi 24CondensingGas89.0%
Ideal Logic combi 30CondensingGas89.0%
Ideal Logic combi 35CondensingGas88.9%
Ideal LOGIC COMBI C 24CondensingGas89.6%
Ideal LOGIC COMBI C 30CondensingGas89.6%
Ideal LOGIC COMBI C 35CondensingGas89.6%
Ideal LOGIC COMBI C24PCondensingLPG90.7%
Ideal LOGIC COMBI C30PCondensingLPG90.7%
Ideal Logic Combi E 24CondensingGas89.0%
Ideal Logic Combi E 30CondensingGas89.0%
Ideal Logic Combi E 35CondensingGas88.9%
Ideal Logic Combi EC 24CondensingGas89.0%
Ideal Logic Combi EC 30CondensingGas89.0%
Ideal Logic Combi EC 35CondensingGas88.9%
Ideal Logic Combi ES 24CondensingGas89.0%
Ideal Logic Combi ES 30CondensingGas89.0%
Ideal Logic Combi ES 35CondensingGas88.9%
Ideal LOGIC COMBI ESP 24CondensingGas89.0%
Ideal LOGIC COMBI ESP 30CondensingGas89.0%
Ideal LOGIC COMBI ESP 35CondensingGas88.9%
Ideal LOGIC COMBI ESP1 24CondensingGas89.6%
Ideal LOGIC COMBI ESP1 30CondensingGas89.6%
Ideal LOGIC COMBI ESP1 30PCondensingLPG90.7%
Ideal LOGIC COMBI ESP1 35CondensingGas89.6%
Ideal LOGIC COMBI ESP1 35PCondensingLPG90.7%
Ideal Logic Heat 12CondensingGas89.4%
Ideal Logic Heat 15CondensingGas89.3%
Ideal Logic Heat 18CondensingGas89.2%
Ideal Logic Heat 24CondensingGas89.5%
Ideal Logic Heat 30CondensingGas89.6%
Ideal LOGIC HEAT H12CondensingGas89.4%
Ideal LOGIC HEAT H15CondensingGas89.4%
Ideal LOGIC HEAT H18CondensingGas89.6%
Ideal LOGIC HEAT H24CondensingGas89.8%
Ideal LOGIC HEAT H24PCondensingLPG90.8%
Ideal LOGIC HEAT H30CondensingGas89.5%
Ideal LOGIC HEAT H30PCondensingLPG90.5%
Ideal Logic System 15CondensingGas89.3%
Ideal Logic System 18CondensingGas89.2%
Ideal Logic System 24CondensingGas89.5%
Ideal Logic System 30CondensingGas89.6%
Ideal LOGIC SYSTEM S15CondensingGas89.4%
Ideal LOGIC SYSTEM S15IECondensingGas89.4%
Ideal LOGIC SYSTEM S18CondensingGas89.6%
Ideal LOGIC SYSTEM S18IECondensingGas89.6%
Ideal LOGIC SYSTEM S24CondensingGas89.8%
Ideal LOGIC SYSTEM S24IECondensingGas89.8%
Ideal LOGIC SYSTEM S24P IECondensingLPG90.8%
Ideal LOGIC SYSTEM S30CondensingGas89.5%
Ideal LOGIC SYSTEM S30IECondensingGas89.5%
Ideal LOGIC SYSTEM S30PCondensingLPG90.5%
Ideal LOGIC SYSTEM S30P IECondensingLPG90.5%
Ideal Logic+ combi 24CondensingGas89.0%
Ideal Logic+ combi 30CondensingGas89.0%
Ideal Logic+ combi 35CondensingGas88.9%
Ideal Maximiser SE 42CondensingGas88.5%
Ideal Maximiser SE 65CondensingGas88.8%
Ideal Mexico HE 24CondensingGas88.8%
Ideal Mexico HE 30CondensingGas88.9%
Ideal Mexico HE 36CondensingGas89.0%
Ideal Mexico HE15CondensingGas89.7%
Ideal Mexico HE18CondensingGas89.4%
Ideal Mexico Slimline CF 440Non-CondensingGas78.5%
Ideal Mexico Slimline CF3/40Non-CondensingGas70.8%
Ideal Mexico Slimline CF3/50Non-CondensingGas71.6%
Ideal Mexico Slimline RS 445Non-CondensingGas78.4%
Ideal Mexico Slimline RS3/40Non-CondensingGas74.6%
Ideal Mexico Slimline RS3/50Non-CondensingGas72.9%
Ideal Mexico Super 100FFNon-CondensingGas77.6%
Ideal Mexico Super 125FFNon-CondensingGas77.9%
Ideal Mexico Super 40FFNon-CondensingGas76.7%
Ideal Mexico Super 4100 FFNon-CondensingGas78.9%
Ideal Mexico Super 4125 FFNon-CondensingGas78.5%
Ideal Mexico Super 440 FFNon-CondensingGas78.3%
Ideal Mexico Super 450 FFNon-CondensingGas79.0%
Ideal Mexico Super 460 FFNon-CondensingGas79.2%
Ideal Mexico Super 470 FFNon-CondensingGas79.9%
Ideal Mexico Super 480 FFNon-CondensingGas79.7%
Ideal Mexico Super 50FFNon-CondensingGas76.7%
Ideal Mexico Super 60FFNon-CondensingGas77.1%
Ideal Mexico Super 70FFNon-CondensingGas77.6%
Ideal Mexico Super 80FFNon-CondensingGas79.4%
Ideal Mexico Super CF 4120Non-CondensingGas79.0%
Ideal Mexico Super CF 4140Non-CondensingGas78.6%
Ideal Mexico Super CF 445Non-CondensingGas78.5%
Ideal Mexico Super CF 455Non-CondensingGas78.5%
Ideal Mexico Super CF 465Non-CondensingGas79.7%
Ideal Mexico Super CF 475Non-CondensingGas78.9%
Ideal Mexico Super CF 495Non-CondensingGas78.8%
Ideal Mexico Super CF3/100Non-CondensingGas71.6%
Ideal Mexico Super CF3/100PNon-CondensingLPG73.8%
Ideal Mexico Super CF3/125Non-CondensingGas71.8%
Ideal Mexico Super CF3/125PNon-CondensingLPG74.5%
Ideal Mexico Super CF3/140Non-CondensingGas72.7%
Ideal Mexico Super CF3/140PNon-CondensingLPG74.8%
Ideal Mexico Super CF3/40Non-CondensingGas71.8%
Ideal Mexico Super CF3/50Non-CondensingGas71.3%
Ideal Mexico Super CF3/60Non-CondensingGas71.8%
Ideal Mexico Super CF3/60PNon-CondensingLPG74.4%
Ideal Mexico Super CF3/70Non-CondensingGas72.7%
Ideal Mexico Super CF3/75PNon-CondensingLPG74.0%
Ideal Mexico Super CF3/80Non-CondensingGas72.3%
Ideal Mexico Super RS 4100Non-CondensingGas79.0%
Ideal Mexico Super RS 4125Non-CondensingGas79.4%
Ideal Mexico Super RS 440Non-CondensingGas78.6%
Ideal Mexico Super RS 450Non-CondensingGas79.1%
Ideal Mexico Super RS 460Non-CondensingGas79.0%
Ideal Mexico Super RS 470Non-CondensingGas79.0%
Ideal Mexico Super RS 485Non-CondensingGas79.1%
Ideal Mexico Super RS3/100Non-CondensingGas72.5%
Ideal Mexico Super RS3/100PNon-CondensingLPG74.7%
Ideal Mexico Super RS3/125Non-CondensingGas72.7%
Ideal Mexico Super RS3/40Non-CondensingGas72.8%
Ideal Mexico Super RS3/50Non-CondensingGas72.1%
Ideal Mexico Super RS3/60Non-CondensingGas74.0%
Ideal Mexico Super RS3/60PNon-CondensingLPG75.2%
Ideal Mexico Super RS3/70Non-CondensingGas72.7%
Ideal Mexico Super RS3/75PNon-CondensingLPG75.3%
Ideal Mexico Super RS3/80Non-CondensingGas72.0%
Ideal Mini C24 24kW Combi BoilerNon-CondensingGas78.2%
Ideal Mini C28 28kW Combi BoilerNon-CondensingGas78.3%
Ideal Mini C32 32kW Combi BoilerNon-CondensingGas78.3%
Ideal mini HE C24CondensingGas86.4%
Ideal mini HE C24 LPGCondensingLPG86.8%
Ideal mini HE C28CondensingGas86.5%
Ideal mini HE C28 LPGCondensingLPG86.9%
Ideal Mini HE C32CondensingGas86.1%
Ideal Mini S24 24kW System BoilerNon-CondensingGas78.3%
Ideal Mini S28 28kW System BoilerNon-CondensingGas78.4%
Ideal Minimser SE30CondensingGas85.5%
Ideal Minimser SE40CondensingGas85.8%
Ideal Minimser SE50CondensingGas85.7%
Ideal Minimser SE60CondensingGas85.6%
Ideal Minimser SE70CondensingGas85.7%
Ideal Minimser SE80CondensingGas85.6%
Ideal Project Heat 15CondensingGas89.3%
Ideal Project Heat 24CondensingGas89.5%
Ideal Project System 15CondensingGas89.3%
Ideal Project System 24CondensingGas89.5%
Ideal Response 100Non-CondensingGas79.4%
Ideal Response 120Non-CondensingGas79.4%
Ideal Response 80Non-CondensingGas79.3%
Ideal Response SECondensingGas87.4%
Ideal Systemiser SECondensingGas87.5%
Ideal Vogue c26CondensingGas89.2%
Ideal VOGUE C26 GEN2CondensingGas89.2%
Ideal VOGUE C26P GEN2CondensingLPG90.2%
Ideal Vogue c32CondensingGas89.3%
Ideal VOGUE C32 GEN2CondensingGas89.3%
Ideal VOGUE C32P GEN2CondensingLPG90.3%
Ideal Vogue c40CondensingGas89.2%
Ideal VOGUE C40 GEN2CondensingGas89.2%
Ideal VOGUE C40P GEN2CondensingLPG90.2%
Ideal Vogue s15CondensingGas89.1%
Ideal VOGUE S15 GEN2CondensingGas89.1%
Ideal VOGUE S15P GEN2CondensingLPG90.1%
Ideal Vogue s18CondensingGas89.4%
Ideal VOGUE S18 GEN2CondensingGas89.4%
Ideal VOGUE S18P GEN2CondensingLPG90.4%
Ideal Vogue s26CondensingGas89.4%
Ideal VOGUE S26 GEN2CondensingGas89.4%
Ideal VOGUE S26P GEN2CondensingLPG90.4%
Ideal Vogue s32CondensingGas89.4%
Ideal VOGUE S32 GEN2CondensingGas89.4%
Ideal VOGUE S32P GEN2CondensingLPG90.4%
Ikon 23 tNon-CondensingGas78.7%
Ikon 28 tNon-CondensingGas79.9%
Ikon 40-50 CINon-CondensingGas78.9%
Ikon 60-80 CINon-CondensingGas78.3%
Intergas Combi Compact ECO RF 24CondensingGas88.8%
Intergas Combi Compact ECO RF 30CondensingGas88.8%
Intergas Combi Compact ECO RF 36CondensingGas89.1%
Intergas Combi Compact HRE 24/18CondensingGas88.8%
Intergas Combi Compact HRE 28/24CondensingGas88.8%
Intergas Combi Compact HRE 36/30CondensingGas89.1%
Intergas Compact HRE 18 OVCondensingGas88.9%
Intergas Compact HRE 18 SBCondensingGas88.9%
Intergas Compact HRE 24 OVCondensingGas88.9%
Intergas Compact HRE 24 SBCondensingGas88.9%
Intergas Compact HRE 30 OVCondensingGas89.2%
Intergas Compact HRE 30 SBCondensingGas89.2%
Intergas Rapid 25CondensingGas89.0%
Intergas Rapid 32CondensingGas88.9%
iQE Comfort 30CondensingGas88.9%
iQE Horizon 15/26CondensingOil90.6%
iQE Horizon 26/35CondensingOil90.3%
iQE Horizon COMBI26CondensingOil90.2%
iQE Horizon OM15/26CondensingOil90.6%
iQE Horizon OM26/35CondensingOil90.3%
iQE Horizon OMCOMBI26CondensingOil90.2%
iQE Simplicity 20TCondensingGas88.7%
iQE Simplicity 25CondensingGas88.8%
iQE Simplicity 25TCondensingGas88.9%
iQE Simplicity 30CondensingGas88.8%
iQE Simplicity 30TCondensingGas88.9%
iQE Simplicity 35CondensingGas88.6%
IRSAP CWAI 24 MCondensingGas88.5%
IRSAP CWAI 32 MCondensingGas88.8%
IRSAP CWAS 24 MCondensingGas88.9%
IRSAP CWAS 32 MCondensingGas89.2%
IRSAP Ecogreen CWAI 24 MCondensingGas88.5%
IRSAP Ecogreen CWAI 32 MCondensingGas88.8%
IRSAP Ecogreen CWAS 24 MCondensingGas88.9%
IRSAP Ecogreen CWAS 32 MCondensingGas89.2%
Itho Images bv Ethos 28CondensingGas89.4%
Itho Images bv Ethos 36CondensingGas89.4%
Itho Images bv Ethos 46CondensingGas89.4%
Jaguar 23Non-CondensingGas78.7%
Jaguar 28Non-CondensingGas79.3%
Johnson & Starley QuanTec 16RCondensingGas89.7%
Johnson & Starley QuanTec 16RKCondensingGas89.7%
Johnson & Starley QuanTec 24CCondensingGas89.6%
Johnson & Starley QuanTec 24RCondensingGas89.6%
Johnson & Starley QuanTec 24RKCondensingGas89.6%
Johnson & Starley QuanTec 24SCondensingGas89.6%
Johnson & Starley QuanTec 30CCondensingGas89.5%
Johnson & Starley QuanTec HR28CCondensingGas89.3%
Johnson & Starley Quantec HR28CPCondensingLPG90.3%
Johnson & Starley Reno HE16HCondensingGas89.1%
Johnson & Starley Reno HE16HPCondensingLPG91.1%
Johnson & Starley Reno HE16SCondensingGas89.1%
Johnson & Starley Reno HE16SPCondensingLPG91.1%
Johnson & Starley Reno HE25HCondensingGas89.2%
Johnson & Starley Reno HE25HPCondensingLPG90.4%
Johnson & Starley Reno HE25SCondensingGas89.2%
Johnson & Starley Reno HE25SPCondensingLPG90.4%
Johnson & Starley Reno HE30CCondensingGas89.1%
Johnson & Starley Reno HE30CPCondensingLPG90.3%
Johnson & Starley Reno HE31HCondensingGas88.8%
Johnson & Starley Reno HE31HPCondensingLPG91.0%
Johnson & Starley Reno HE31SCondensingGas88.8%
Johnson & Starley Reno HE31SPCondensingLPG91.0%
Johnson & Starley Reno HE37CCondensingGas88.7%
Johnson & Starley Reno HE37CPCondensingLPG90.9%
Johnson & Starley RenoXtra 30 CPCondensingLPG90.4%
Johnson & Starley RenoXtra 30CCondensingGas89.4%
Johnson & Starley RenoXtra 30CACondensingGas89.4%
Johnson & Starley RenoXtra 37 CPCondensingLPG90.7%
Johnson & Starley RenoXtra 37CCondensingGas89.6%
Keston C 36 CombiCondensingGas89.8%
Keston C 36P CombiCondensingLPG90.8%
Keston C 40PCondensingLPG90.3%
Keston C 55PCondensingLPG90.8%
Keston Celsius 25CondensingGas88.9%
Keston Celsius 25PCondensingLPG90.7%
Keston Combi 30CondensingGas89.0%
Keston Combi 35CondensingGas88.9%
Keston COMBI C30CondensingGas89.6%
Keston COMBI C35CondensingGas89.6%
Keston COMBI C35PCondensingLPG90.7%
Keston Heat 45CondensingGas89.2%
Keston Heat 55CondensingGas89.6%
Keston K 130CondensingGas87.9%
Keston K 130PCondensingLPG89.9%
Keston K 170CondensingGas89.1%
Keston K 170PCondensingLPG91.1%
Keston K 40CondensingGas89.3%
Keston K 50CondensingGas87.2%
Keston K 50PCondensingLPG88.9%
Keston K 55CondensingGas89.7%
Keston K 60CondensingGas87.3%
Keston K 60PCondensingLPG89.1%
Keston K 80CondensingGas87.4%
Keston K 80PCondensingLPG89.8%
Keston Keston 30CCondensingGas89.0%
Keston KESTON COMBI C30PCondensingLPG90.7%
Keston KESTON SYSTEM S30CondensingGas89.5%
Keston KESTON SYSTEM S30PCondensingLPG90.6%
Keston Q37CondensingGas89.3%
Keston Q37PCondensingLPG90.3%
Keston Qudos 28hCondensingGas90.3%
Keston Qudos 28hpCondensingLPG90.5%
Keston Qudos 28sCondensingGas90.3%
Keston Qudos 28spCondensingLPG90.5%
Keston System 30CondensingGas89.6%
Keston Thermomatic RSM20FBNon-CondensingGas78.1%
Keston Thermomatic RSM25FBNon-CondensingGas78.0%
Kidd VHE 1 KeroseneCondensingOil88.6%
Kidd VHE 1 Natural GasCondensingGas85.6%
Kidd VHE 2 KeroseneCondensingOil89.6%
Kidd VHE 2 Natural GasCondensingGas85.7%
Kidd VHE 260 KeroseneCondensingOil89.2%
Kidd VHE 260 Natural GasCondensingGas85.9%
Lamborghini ALBA 20 ASNon-CondensingGas79.1%
Lamborghini ALBA 20 ASBNon-CondensingGas79.7%
Lamborghini ALBA 20 BSNon-CondensingGas76.6%
Lamborghini ALBA 24 ASNon-CondensingGas78.9%
Lamborghini ALBA 24 ASBNon-CondensingGas78.8%
Lamborghini ALBA 24 RSNon-CondensingGas79.0%
Lamborghini Caloreclima Extrema 30 CCondensingGas89.1%
Lamborghini Caloreclima Extrema 38 CCondensingGas89.1%
Lamborghini Futuria 24 MCW Top U/GBCondensingGas88.3%
Lamborghini Vela X 24 MBS W Top/GBNon-CondensingGas78.8%
Lamborghini Xilo 20 MCS W Top U/GBNon-CondensingGas76.6%
Lamborghini Xilo D 24 MCS W Top U/GBNon-CondensingGas78.9%
Main 12 HECondensingGas85.8%
Main 12 HE ACondensingGas88.7%
Main 12 Heat ErPCondensingGas88.7%
Main 15 HECondensingGas85.6%
Main 15 HE ACondensingGas89.0%
Main 15 Heat ErPCondensingGas89.4%
Main 18 HECondensingGas85.6%
Main 18 HE ACondensingGas88.7%
Main 18 Heat ErPCondensingGas88.7%
Main 24 HECondensingGas85.6%
Main 24 HE ACondensingGas88.8%
Main 24 Heat ErPCondensingGas88.8%
Main 30 HE ACondensingGas88.8%
Main 30 Heat ErPCondensingGas88.8%
Main 9 HECondensingGas85.6%
Main Combi 24Non-CondensingGas78.6%
Main Combi 24 HECondensingGas86.4%
Main Combi 25 EcoCondensingGas89.0%
Main Combi 30 EcoCondensingGas88.7%
Main Combi 30 HECondensingGas86.4%
Main Combi Eco Classic 24CondensingGas89.0%
Main Combi Eco Classic 30CondensingGas88.7%
Main Combi Eco Elite 25CondensingGas89.0%
Main Combi Eco Elite 30CondensingGas88.7%
Main Eco Elite 24 System ErPCondensingGas89.1%
Main Eco Elite 25 Combi ErPCondensingGas89.0%
Main Eco Elite 28 System ErPCondensingGas88.8%
Main Eco Elite 30 Combi ErPCondensingGas88.7%
Main System 18 HECondensingGas86.7%
Main System 24 EcoCondensingGas89.1%
Main System 24 HECondensingGas86.5%
Main System 28 EcoCondensingGas88.8%
Main System 28 HECondensingGas86.4%
Main System Eco Elite 24CondensingGas89.1%
Main System Eco Elite 28CondensingGas88.8%
Malvern 30 NGCondensingGas83.8%
Malvern 40 NGCondensingGas84.2%
Malvern 50 NGCondensingGas84.8%
Malvern 70 NGCondensingGas83.0%
Malvern 70/80 NGCondensingGas84.5%
Malvern Combi NGCondensingGas85.2%
Malvern Dbi CombiCondensingLPG87.2%
Malvern Dbi Combi NGCondensingGas86.2%
Malvern tentwentyCondensingGas86.3%
Malvern twentytwentysixCondensingGas85.6%
Maxol Eastham 25bfNon-CondensingGas65.0%
Maxol Eastham 25ofNon-CondensingGas65.0%
Maxol Eastham 40bfNon-CondensingGas65.0%
Maxol Eastham 50Non-CondensingGas65.0%
Maxol Homewarm 600Non-CondensingGas65.0%
Maxol Marathon eNon-CondensingGas65.0%
Maxol Marathon mk1Non-CondensingGas65.0%
Maxol Marathon mk1rNon-CondensingGas65.0%
Maxol Marathon rNon-CondensingGas65.0%
Maxol Maxolympic 15Non-CondensingGas65.0%
Maxol Maxolympic f15Non-CondensingGas65.0%
Maxol Maxolympic f20Non-CondensingGas65.0%
Maxol Microsystem 402MDFNon-CondensingGas79.9%
Maxol Microsystem 402RFNon-CondensingGas79.9%
Maxol Microsystem 502MDFNon-CondensingGas79.9%
Maxol Microsystem 502RFNon-CondensingGas79.9%
Maxol Microturbo 402 RFNon-CondensingGas79.9%
Maxol Microturbo 402MDFNon-CondensingGas79.9%
Maxol Microturbo 40mdfNon-CondensingGas72.0%
Maxol Microturbo 40rfNon-CondensingGas72.0%
Maxol Microturbo 502MDFNon-CondensingGas79.9%
Maxol Microturbo 502RFNon-CondensingGas79.9%
Maxol Microturbo 50mdfNon-CondensingGas72.0%
Maxol Microturbo 50rfNon-CondensingGas72.0%
Maxol Morocco 20Non-CondensingGas71.4%
Maxol Morocco 30Non-CondensingGas71.4%
Maxol Morocco 40Non-CondensingGas71.4%
Maxol Mystique coalridgeNon-CondensingGas65.0%
Maxol Ruud 118Non-CondensingGas65.0%
Maxol Supacombi HE 24CondensingGas86.4%
Maxol Supacombi HE 28CondensingGas86.5%
Merlin 100/150 BFNon-CondensingOil81.3%
Merlin 100/150 CFNon-CondensingOil81.3%
Merlin 2000 40/60 BLNon-CondensingOil85.3%
Merlin 2000 40/60 CFNon-CondensingOil85.3%
Merlin 2000 60/80 BLNon-CondensingOil85.5%
Merlin 2000 60/80 CFNon-CondensingOil85.5%
Merlin 2000 80/100 BLNon-CondensingOil85.6%
Merlin 2000 80/100 CFNon-CondensingOil85.6%
Merlin 45/65 BLNon-CondensingOil83.7%
Merlin 45/65 CFNon-CondensingOil83.7%
Merlin 65/95 BLNon-CondensingOil81.8%
Merlin 65/95 CFNon-CondensingOil81.8%
Merlin Internal Wall Hung 40/65 BLNon-CondensingOil80.8%
Merlin Internal Wall Hung 40/65 CFNon-CondensingOil80.8%
Merlin Internal Wall Hung 40/65 EXTNon-CondensingOil80.8%
MHS Boilers Stata Streamline 68CondensingGas88.4%
MHS Boilers Strata 1 HE 60CondensingGas89.5%
MHS Boilers Strata 1 HE-38CondensingGas89.0%
MHS Boilers Strata 1 HE-45CondensingGas89.4%
MHS Boilers Strata 1 HEI-38/45 CombiCondensingGas89.0%
MHS Boilers Strata Streamline 31CondensingGas88.3%
MHS Boilers Strata Streamline 47CondensingGas88.3%
MHS Boilers Strata Streamline 75CondensingGas88.4%
MHS Boilers Ultramax WM 65CondensingGas88.9%
Mikrofill Ethos 36CCondensingGas88.9%
Mikrofill Ethos 54CCondensingGas89.0%
Mistral BH 1 50/70Non-CondensingOil85.6%
Mistral BH 2 70/90Non-CondensingOil85.6%
Mistral BH 50/90 ContractNon-CondensingOil85.6%
Mistral BH 90/150 ContractNon-CondensingOil85.5%
Mistral BH1-5070 Boiler HouseNon-CondensingOil82.3%
Mistral BH2-7090 Boiler HouseNon-CondensingOil82.3%
Mistral BH3 90/120Non-CondensingOil85.5%
Mistral BH3-9012 Boiler HouseNon-CondensingOil83.8%
Mistral BH4 120/150Non-CondensingOil85.5%
Mistral BH4-1215 Boiler HouseNon-CondensingOil83.8%
Mistral Boilers CBH5 41/50CondensingOil90.4%
Mistral Boilers CBH6 50/58CondensingOil90.4%
Mistral Boilers CBH7 58/68CondensingOil90.4%
Mistral Boilers CKUT5 41/50CondensingOil90.4%
Mistral Boilers CKUT6 50/58CondensingOil90.4%
Mistral Boilers CKUT7 58/68CondensingOil90.4%
Mistral Boilers CMC5 41/50CondensingOil88.7%
Mistral Boilers CMC6 50/58CondensingOil88.7%
Mistral Boilers CMC7 58/68CondensingOil88.7%
Mistral Boilers COD5 41/50CondensingOil90.4%
Mistral Boilers COD5 SS 41/50CondensingOil90.4%
Mistral Boilers COD6 50/58CondensingOil90.4%
Mistral Boilers COD6 SS 50/58CondensingOil90.4%
Mistral Boilers COD7 58/68CondensingOil90.4%
Mistral Boilers COD7 SS 58/68CondensingOil90.4%
Mistral Boilers CODMC5 41/50CondensingOil88.7%
Mistral Boilers CODMC6 50/58CondensingOil88.7%
Mistral Boilers CODMC7 58/68CondensingOil88.7%
Mistral Boilers CS5 41/50CondensingOil90.4%
Mistral Boilers CS6 50/58CondensingOil90.4%
Mistral Boilers CS7 58/68CondensingOil90.4%
Mistral C 50/90 PlusNon-CondensingOil83.9%
Mistral C 50/90 Standard ContractNon-CondensingOil83.9%
Mistral C 90/150 ContractNon-CondensingOil83.8%
Mistral C 90/150 Plus ContractNon-CondensingOil83.8%
Mistral C1 50/70 PlusNon-CondensingOil83.9%
Mistral C1 50/70 StandardNon-CondensingOil83.9%
Mistral C1-5070 CombiNon-CondensingOil80.6%
Mistral C2 70/90 PlusNon-CondensingOil83.9%
Mistral C2 70/90 StandardNon-CondensingOil83.9%
Mistral C2-7090 CombiNon-CondensingOil80.6%
Mistral C3 90/120 PlusNon-CondensingOil83.8%
Mistral C3 90/120 StandardNon-CondensingOil85.5%
Mistral C3-9012 Mega CombiNon-CondensingOil82.1%
Mistral C4 120/150 PlusNon-CondensingOil83.8%
Mistral C4 120/150 StandardNon-CondensingOil83.8%
Mistral C4-1215 Mega CombiNon-CondensingOil82.1%
Mistral CBH – 5070 Boiler HouseCondensingOil90.7%
Mistral CBH – 7090 Boiler HouseCondensingOil90.7%
Mistral CBH 15/26 ContractCondensingOil90.8%
Mistral CBH 26/40 ContractCondensingOil90.9%
Mistral CBH1 15/20CondensingOil90.8%
Mistral CBH2 20/26CondensingOil90.8%
Mistral CBH3 – 9012 Boiler HouseCondensingOil90.0%
Mistral CBH3 26/35CondensingOil90.9%
Mistral CBH4 – 1215 Boiler HouseCondensingOil90.0%
Mistral CBH4 35/40CondensingOil90.9%
Mistral CC 15/26 Plus ContractCondensingOil89.1%
Mistral CC 15/26 Std ContractCondensingOil89.1%
Mistral CC 26/40 plus contractCondensingOil89.2%
Mistral CC 26/40 Std ContractCondensingOil89.2%
Mistral CC1 – 5070 Condensing CombiCondensingOil89.0%
Mistral CC1 15/20 PlusCondensingOil89.1%
Mistral CC1 15/20 StdCondensingOil89.1%
Mistral CC2 – 7090 Condensing CombiCondensingOil89.0%
Mistral CC2 20/26 PlusCondensingOil89.1%
Mistral CC2 20/26 StdCondensingOil89.1%
Mistral CC3 – 9012 CombiCondensingOil88.3%
Mistral CC3 26/35 plusCondensingOil89.2%
Mistral CC3 26/35 StdCondensingOil89.2%
Mistral CC4 – 1215 CombiCondensingOil88.3%
Mistral CC4 35/40 plusCondensingOil89.2%
Mistral CC4 35/40 StdCondensingOil89.2%
Mistral CK 3 – 9012 KitchenCondensingOil90.0%
Mistral CK1 – 5070 KitchenCondensingOil90.7%
Mistral CK2 – 7090 KitchenCondensingOil90.7%
Mistral CK4 – 1215 KitchenCondensingOil90.0%
Mistral CKUT 15/26 ContractCondensingOil90.8%
Mistral CKUT 26/40 ContractCondensingOil90.9%
Mistral CKUT 3 – 9012 Kitchen UtilityCondensingOil90.0%
Mistral CKUT1 – 5070 Kitchen UtilityCondensingOil90.7%
Mistral CKUT1 15/20CondensingOil90.8%
Mistral CKUT2 – 7090 Kitchen UtilityCondensingOil90.7%
Mistral CKUT2 20/26CondensingOil90.8%
Mistral CKUT3 26/35CondensingOil90.9%
Mistral CKUT4 – 1215 Kitchen UtilityCondensingOil90.0%
Mistral CKUT4 35/40CondensingOil90.9%
Mistral COD – 5070 Outdoor ModelCondensingOil90.7%
Mistral COD – 7090 Outdoor ModelCondensingOil90.7%
Mistral COD – C – 5070 Outdoor CombiCondensingOil89.0%
Mistral COD – C – 7090 Outdoor CombiCondensingOil89.0%
Mistral COD – SS – 5070 Outdoor Sealed SystemCondensingOil90.7%
Mistral COD – SS – 7090 Outdoor Sealed SystemCondensingOil90.7%
Mistral COD 15/26 ContractCondensingOil90.8%
Mistral COD 26/40 ContractCondensingOil90.9%
Mistral COD SS 15/26 ContractCondensingOil90.8%
Mistral COD1 15/20CondensingOil90.8%
Mistral COD1 SS 15/20CondensingOil90.8%
Mistral COD2 20/26CondensingOil90.8%
Mistral COD2 SS 20/26CondensingOil90.8%
Mistral COD3 – 9012 OutdoorCondensingOil90.0%
Mistral COD3 – C – 9012 Outdoor CombiCondensingOil88.3%
Mistral COD3 – SS – 9012 Outdoor Sealed SystemCondensingOil90.0%
Mistral COD3 26/35CondensingOil90.9%
Mistral COD4 – 1215 OutdoorCondensingOil90.0%
Mistral COD4 – C – 1215 Outdoor CombiCondensingOil88.3%
Mistral COD4 – SS – 1215 Outdoor Sealed SystemCondensingOil90.0%
Mistral COD4 35/40CondensingOil90.9%
Mistral CODC 15/26 Plus ContractCondensingOil89.1%
Mistral CODC 15/26 Std ContractCondensingOil89.1%
Mistral CODC 26/40 plus contractCondensingOil89.2%
Mistral CODC 26/40 Std ContractCondensingOil89.2%
Mistral CODC1 15/20 PlusCondensingOil89.1%
Mistral CODC2 20/26 PlusCondensingOil89.1%
Mistral CODC2 20/26 StdCondensingOil89.1%
Mistral CODC3 26/35 plusCondensingOil89.2%
Mistral CODC3 26/35 StdCondensingOil89.2%
Mistral CODC4 35/40 plusCondensingOil89.2%
Mistral CODC4 35/40 StdCondensingOil89.2%
Mistral CODSS 26/40 ContractCondensingOil90.9%
Mistral CODSS 3 26/35CondensingOil90.9%
Mistral CODSS 4 35/40CondensingOil90.9%
Mistral CS 15/26 ContractCondensingOil90.8%
Mistral CS 26/40 ContractCondensingOil90.9%
Mistral CS1 – 5070 Sealed SystemCondensingOil90.7%
Mistral CS1 15/20CondensingOil90.8%
Mistral CS2 – 7090 Sealed SystemCondensingOil90.7%
Mistral CS2 20/26CondensingOil90.8%
Mistral CS3 – 9012 Sealed SystemCondensingOil90.0%
Mistral CS3 26/35CondensingOil90.9%
Mistral CS4 – 1215 Sealed SystemCondensingOil90.0%
Mistral CS4 35/40CondensingOil90.9%
Mistral DKUT 17/33Non-CondensingOil85.6%
Mistral K1-5070 KitchenNon-CondensingOil82.3%
Mistral K2-7090 KitchenNon-CondensingOil82.3%
Mistral K3-9012 KitchenNon-CondensingOil83.8%
Mistral K4-1215 KitchenNon-CondensingOil83.8%
Mistral KUT 1 50/70Non-CondensingOil85.6%
Mistral KUT 2 70/90Non-CondensingOil85.6%
Mistral KUT 50/90 ContractNon-CondensingOil85.6%
Mistral KUT 90/150 ContractNon-CondensingOil85.5%
Mistral KUT1 5070 Kitchen UtilityNon-CondensingOil82.3%
Mistral KUT2-7090 Kitchen UtilityNon-CondensingOil82.3%
Mistral KUT3 90/120Non-CondensingOil85.5%
Mistral KUT3-9012 Kitchen UtilityNon-CondensingOil83.8%
Mistral KUT4 120/150Non-CondensingOil85.5%
Mistral KUT4-1215 Kitchen UtilityNon-CondensingOil83.8%
Mistral Lo-Nox BF CBH 1 15/20CondensingOil91.6%
Mistral Lo-Nox BF CBH 2 20/27CondensingOil91.6%
Mistral Lo-Nox BF CBH 3 27/35CondensingOil91.6%
Mistral Lo-Nox BF CBH 4 35/42CondensingOil91.6%
Mistral Lo-Nox BF CC1 15/20CondensingOil89.9%
Mistral Lo-Nox BF CC1 Plus 15/20CondensingOil89.9%
Mistral Lo-Nox BF CC2 20/27CondensingOil89.9%
Mistral Lo-Nox BF CC2 Plus 20/27CondensingOil89.9%
Mistral Lo-Nox BF CC3 27/35CondensingOil89.9%
Mistral Lo-Nox BF CC3 Plus 27/35CondensingOil89.9%
Mistral Lo-Nox BF CC4 35/42CondensingOil89.9%
Mistral Lo-Nox BF CC4 Plus 35/42CondensingOil89.9%
Mistral Lo-Nox BF CKUT 1 15/20CondensingOil91.6%
Mistral Lo-Nox BF CKUT 2 20/27CondensingOil91.6%
Mistral Lo-Nox BF CKUT 3 27/35CondensingOil91.6%
Mistral Lo-Nox BF CKUT 4 35/42CondensingOil91.6%
Mistral Lo-Nox BF COD1 15/20CondensingOil91.6%
Mistral Lo-Nox BF COD2 20/27CondensingOil91.6%
Mistral Lo-Nox BF COD3 27/35CondensingOil91.6%
Mistral Lo-Nox BF COD4 35/42CondensingOil91.6%
Mistral Lo-Nox BF CODC1 15/20CondensingOil89.9%
Mistral Lo-Nox BF CODC1 Plus 15/20CondensingOil89.9%
Mistral Lo-Nox BF CODC2 20/27CondensingOil89.9%
Mistral Lo-Nox BF CODC2 Plus 20/27CondensingOil89.9%
Mistral Lo-Nox BF CODC3 27/35CondensingOil89.9%
Mistral Lo-Nox BF CODC3 Plus 27/35CondensingOil89.9%
Mistral Lo-Nox BF CODC4 35/42CondensingOil89.9%
Mistral Lo-Nox BF CODC4 Plus 35/42CondensingOil89.9%
Mistral Lo-Nox BF CODSS1 15/20CondensingOil91.6%
Mistral Lo-Nox BF CODSS2 20/27CondensingOil91.6%
Mistral Lo-Nox BF CODSS3 27/35CondensingOil91.6%
Mistral Lo-Nox BF CODSS4 35/42CondensingOil91.6%
Mistral Lo-Nox BF CS1 15/20CondensingOil91.6%
Mistral Lo-Nox BF CS2 20/27CondensingOil91.6%
Mistral Lo-Nox BF CS3 27/35CondensingOil91.6%
Mistral Lo-Nox BF CS4 35/42CondensingOil91.6%
Mistral OD 1 50/70Non-CondensingOil85.6%
Mistral OD 2 70/90Non-CondensingOil85.6%
Mistral OD 50/90Non-CondensingOil85.6%
Mistral OD 90/150 ContractNon-CondensingOil85.5%
Mistral OD C1 50/70 PlusNon-CondensingOil83.9%
Mistral OD SS 50/90 ContractNon-CondensingOil85.6%
Mistral OD SS 90/150 ContractNon-CondensingOil85.5%
Mistral OD-C1-5070 Outdoor CombiNon-CondensingOil80.6%
Mistral OD-C2-7090 Outdoor CombiNon-CondensingOil80.6%
Mistral OD1 SS 50/70Non-CondensingOil85.6%
Mistral OD1-5070 OutdoorNon-CondensingOil82.3%
Mistral OD1-SS-5070 Outdoor Sealed SystemNon-CondensingOil82.3%
Mistral OD2 SS 70/90Non-CondensingOil85.6%
Mistral OD2-7090 OutdoorNon-CondensingOil82.3%
Mistral OD2-SS-7090 Outdoor Sealed SystemNon-CondensingOil82.3%
Mistral OD3 90/120Non-CondensingOil85.5%
Mistral OD3 SS 90/120Non-CondensingOil85.5%
Mistral OD3-9012 Outdoor ModelNon-CondensingOil83.8%
Mistral OD3-C-9012 Outdoor Mega CombiNon-CondensingOil82.1%
Mistral OD3-SS-9012 Outdoor Sealed SystemNon-CondensingOil83.8%
Mistral OD4 – 1215 Outdoor ModelNon-CondensingOil83.8%
Mistral OD4 120/150Non-CondensingOil85.5%
Mistral OD4 SS 120/150Non-CondensingOil85.5%
Mistral OD4-C-1215 Outdoor Mega CombiNon-CondensingOil82.1%
Mistral OD4-SS-1215 Outdoor Sealed SystemNon-CondensingOil83.8%
Mistral ODC 3 90/120 PlusNon-CondensingOil83.8%
Mistral ODC 50/90 Plus ContractNon-CondensingOil83.9%
Mistral ODC 50/90 Standard ContractNon-CondensingOil83.9%
Mistral ODC 90/150 PlusNon-CondensingOil83.8%
Mistral ODC 90/150 StandardNon-CondensingOil83.8%
Mistral ODC1 50/70 StandardNon-CondensingOil83.9%
Mistral ODC2 70/90 PlusNon-CondensingOil83.9%
Mistral ODC2 70/90 StandardNon-CondensingOil83.9%
Mistral ODC3 90/120 StandardNon-CondensingOil83.8%
Mistral ODC4 120/150 PlusNon-CondensingOil83.8%
Mistral ODC4 120/150 StandardNon-CondensingOil83.8%
Mistral S1 50/70Non-CondensingOil85.6%
Mistral S1-5070 Sealed SystemNon-CondensingOil82.3%
Mistral S2 70/90Non-CondensingOil85.6%
Mistral S2-7090 Sealed SystemNon-CondensingOil82.3%
Mistral S3 90/120Non-CondensingOil85.5%
Mistral S3-9012 Sealed SystemNon-CondensingOil83.8%
Mistral S4 120/150Non-CondensingOil85.5%
Mistral S4-1215 Sealed SystemNon-CondensingOil83.8%
Mistral SS 50/90 ContractNon-CondensingOil85.6%
Mistral SS 90/150 ContractNon-CondensingOil85.5%
Morco GB24CondensingLPG89.9%
Morco GB24-NGCondensingGas88.9%
Morco GB30CondensingLPG90.0%
Morco GB30-NGCondensingGas89.0%
Morco Morco 24 CPMCondensingGas88.7%
Morco Morco 30 CPMCondensingGas88.7%
Motan MKDens 25CondensingGas88.2%
Motan MKDens 36CondensingGas88.5%
Myson Combustion Products Economist wm15/30bfaNon-CondensingGas65.0%
Myson Combustion Products Economist wm30/40bfNon-CondensingGas65.0%
Myson Combustion Products Economist wm40/50bfNon-CondensingGas65.0%
Myson Combustion Products Economist wm50/60bfNon-CondensingGas65.0%
Myson Combustion Products Economist wm60/80bfNon-CondensingGas65.0%
Myson Combustion Products Economist wm80/100bfNon-CondensingGas65.0%
Myson Combustion Products Midas bNon-CondensingGas65.0%
Myson Combustion Products Midas bfNon-CondensingGas65.0%
Myson Combustion Products Midas sfiNon-CondensingGas70.0%
Myson Combustion Products Midas siNon-CondensingGas70.0%
Myson Combustion Products Velaire Vitesse 100/130 BNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 100/130 CNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 130/170 BNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 130/170 CNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 170/250 CNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 40/50 BNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 40/50 CNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 50/60 BNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 50/60 CNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 60/80 BNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 60/80 CNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 80/100 BNon-CondensingOil70.0%
Myson Combustion Products Velaire Vitesse 80/100 CNon-CondensingOil70.0%
Myson Combustion Products Wallflame 60Non-CondensingOil65.0%
Myson Combustion Products Wallflame 80Non-CondensingOil65.0%
Navien NCB-20LHWECondensingGas89.1%
Navien NCB-23LHWECondensingGas89.2%
Navien NCB-24LDWECondensingGas89.0%
Navien NCB-28LDWECondensingGas89.1%
Navien NCB-28LHWECondensingGas89.1%
Navien NCB-33LHWECondensingGas89.2%
Navien NCB-34LDWECondensingGas89.0%
Navien NCB-40LDWECondensingGas89.1%
Navien NCN-21KCondensingGas89.4%
Navien NCN-25KCondensingGas89.0%
Navien NCN-32KCondensingGas89.1%
Navien NCN-37KCondensingGas88.9%
Nefit Buderus Ltd Boulter Buderus 600-28CCondensingGas89.5%
Nefit Buderus Ltd Boulter Buderus 600/28CPCondensingLPG90.7%
Nova Florida Pictor Condensing KC 24 Line TechCondensingGas88.5%
Nova Florida Pictor Condensing KC 28 Line TechCondensingGas88.5%
Nova Florida Pictor Condensing KC 32 Line TechCondensingGas88.5%
Nova Florida Pictor Condensing KR 24 Line TechCondensingGas88.6%
Nova Florida Pictor Condensing KR 28 Line TechCondensingGas88.6%
Nova Florida Pictor Condensing KR 32 Line TechCondensingGas88.6%
Nova Florida Pictor Condensing KRB 24 Line TechCondensingGas88.6%
Nova Florida Pictor Condensing KRB 28 Line TechCondensingGas88.6%
Nova Florida Pictor Condensing KRB 32 Line TechCondensingGas88.6%
NST Sogno ELI 8-22Non-CondensingLPG82.2%
NST Sogno Eli 8-22 MNon-CondensingGas80.3%
NST Sogno ELI 8-26Non-CondensingLPG82.2%
NST Sogno ELI 8-30Non-CondensingGas80.3%
NST Sogno ELR 8-22Non-CondensingLPG82.3%
NST Sogno ELR 8-26Non-CondensingLPG82.3%
NST Sogno ELR 8-30Non-CondensingLPG82.3%
NST Sono ELI 8-30Non-CondensingLPG82.2%
Oceanspa Ocean 80ffNon-CondensingGas70.0%
Oceanspa Ocean 80ffstyleNon-CondensingGas70.0%
Oceanspa Ocean 80ofstyleNon-CondensingGas65.0%
Optia FF100Non-CondensingGas78.0%
Optia FF30Non-CondensingGas79.4%
Optia FF40Non-CondensingGas78.6%
Optia FF50Non-CondensingGas79.6%
Optia FF60Non-CondensingGas78.3%
Optia FF70Non-CondensingGas78.5%
Optia FF80Non-CondensingGas78.1%
Optia HE 12CondensingGas86.6%
Optia HE 15CondensingGas85.9%
Optia HE 18CondensingGas86.6%
Optia HE 9CondensingGas86.4%
Parkray Parkray 401Non-CondensingGas65.0%
Parkray Parkray 402Non-CondensingGas65.0%
Parkray Parkray 404Non-CondensingGas65.0%
Perrymatics Perrymatic 50Non-CondensingOil65.0%
Perrymatics Perrymatic 50/60Non-CondensingOil65.0%
Perrymatics Perrymatic 80Non-CondensingOil65.0%
Perrymatics Perrymatic 95Non-CondensingOil65.0%
Perrymatics Perrymatic Jetstreme Mk1Non-CondensingOil65.0%
Potterton Apollo 25CondensingGas89.0%
Potterton Apollo 30CondensingGas88.7%
Potterton Assure 13 HeatCondensingGas89.1%
Potterton Assure 15 SystemCondensingGas89.1%
Potterton Assure 16 HeatCondensingGas89.1%
Potterton Assure 18 SystemCondensingGas89.1%
Potterton Assure 19 HeatCondensingGas89.1%
Potterton Assure 25 CombiCondensingGas89.0%
Potterton Assure 25 HeatCondensingGas89.1%
Potterton Assure 30 CombiCondensingGas89.0%
Potterton Assure 30 HeatCondensingGas89.1%
Potterton British Gas Potterton PrecisionCondensingGas88.8%
Potterton FF55Non-CondensingGas78.2%
Potterton FF75Non-CondensingGas78.4%
Potterton Gold 15 Heat ErPCondensingGas89.4%
Potterton Gold 18 Heat ErPCondensingGas88.7%
Potterton Gold 18 System ErPCondensingGas88.7%
Potterton Gold 24 Combi ErPCondensingGas88.6%
Potterton Gold 24 HECondensingGas88.6%
Potterton Gold 24 HE ACondensingGas89.0%
Potterton Gold 24 Heat ErPCondensingGas88.8%
Potterton Gold 24 System ErPCondensingGas88.7%
Potterton Gold 28 Combi ErPCondensingGas88.6%
Potterton Gold 28 HECondensingGas88.6%
Potterton Gold 28 HE ACondensingGas89.0%
Potterton GOLD 28 LPG COMBI ErPCondensingLPG89.6%
Potterton Gold 28 System ErPCondensingGas88.6%
Potterton Gold 33 Combi ErPCondensingGas88.5%
Potterton Gold 33 HECondensingGas88.5%
Potterton Gold 33 HE ACondensingGas88.9%
Potterton Gold Combi 28 HE LPGCondensingLPG91.0%
Potterton Gold FSB 30 HECondensingGas88.8%
Potterton Gold H 15CondensingGas89.0%
Potterton Gold H 18CondensingGas88.7%
Potterton Gold H 24CondensingGas88.8%
Potterton Gold System 18 HE ACondensingGas89.0%
Potterton Gold System 24 HE ACondensingGas89.0%
Potterton Gold System 28 HE ACondensingGas89.0%
Potterton Heatmax Combi 24 HECondensingGas89.0%
Potterton Heatmax Combi 28 HECondensingGas89.0%
Potterton Heatmax Combi 33 HECondensingGas88.9%
Potterton International Heating 35Bf 35bfNon-CondensingGas55.0%
Potterton International Heating 35Cf 35cfNon-CondensingGas55.0%
Potterton International Heating BOA 148Non-CondensingOil65.0%
Potterton International Heating BOA 68Non-CondensingOil65.0%
Potterton International Heating C40 c40/12Non-CondensingGas55.0%
Potterton International Heating C50 c50/15Non-CondensingGas55.0%
Potterton International Heating C70 c70/21Non-CondensingGas55.0%
Potterton International Heating C80 c80/23Non-CondensingGas55.0%
Potterton International Heating C95 c95/28Non-CondensingGas55.0%
Potterton International Heating Fireside 35/51Non-CondensingGas65.0%
Potterton International Heating Fireside 50Non-CondensingGas65.0%
Potterton International Heating Fireside 50tgNon-CondensingGas65.0%
Potterton International Heating Fireside 51Non-CondensingGas65.0%
Potterton International Heating Fireside 52Non-CondensingGas65.0%
Potterton International Heating Fireside fs44lbeNon-CondensingGas65.0%
Potterton International Heating Fireside superNon-CondensingGas65.0%
Potterton International Heating Flamingo 50ofNon-CondensingGas65.0%
Potterton International Heating Flamingo cf20/35Non-CondensingGas65.0%
Potterton International Heating Flamingo cf35/50Non-CondensingGas65.0%
Potterton International Heating Flamingo rs20/35Non-CondensingGas65.0%
Potterton International Heating Flamingo rs50Non-CondensingGas65.0%
Potterton International Heating FRS 52Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 cf100Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 cf125Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 cf220Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 cf40Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 cf50Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 cf60Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 cf80Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 rs100Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 rs50Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 rs60Non-CondensingGas65.0%
Potterton International Heating Kingfisher 2 rs80Non-CondensingGas65.0%
Potterton International Heating Kingfisher cf125Non-CondensingGas65.0%
Potterton International Heating Kingfisher cf150Non-CondensingGas65.0%
Potterton International Heating Kingfisher cf45Non-CondensingGas65.0%
Potterton International Heating Kingfisher cf55Non-CondensingGas65.0%
Potterton International Heating Kingfisher rs50Non-CondensingGas65.0%
Potterton International Heating KOA 60/18 SNNon-CondensingOil65.0%
Potterton International Heating KOA 75/22 SNNon-CondensingOil65.0%
Potterton International Heating KOA 90/26 SNNon-CondensingOil65.0%
Potterton International Heating Lynx 2Non-CondensingGas70.0%
Potterton International Heating Lynx electronicNon-CondensingGas65.0%
Potterton International Heating Netaheat Electronic 10/16Non-CondensingGas65.0%
Potterton International Heating Netaheat Electronic 16/22eNon-CondensingGas68.0%
Potterton International Heating Netaheat Electronic 6/10Non-CondensingGas65.0%
Potterton International Heating Netaheat mk2f10-16bfNon-CondensingGas68.0%
Potterton International Heating Netaheat mk2f16-22bfNon-CondensingGas68.0%
Potterton International Heating Rs70/21 rs70/21Non-CondensingGas55.0%
Potterton International Heating Rs90/26 rs90/26Non-CondensingGas55.0%
Potterton International Heating Tattler rs46Non-CondensingGas55.0%
Potterton Kingfisher Mf CFL 40Non-CondensingGas78.4%
Potterton Kingfisher MF CFL100Non-CondensingGas78.0%
Potterton Kingfisher MF CFL50Non-CondensingGas78.5%
Potterton Kingfisher MF CFL60Non-CondensingGas78.0%
Potterton Kingfisher MF CFL70Non-CondensingGas78.0%
Potterton Kingfisher MF CFL80Non-CondensingGas78.3%
Potterton Kingfisher MF CFL90Non-CondensingGas78.0%
Potterton Kingfisher Mf RSL 40Non-CondensingGas78.5%
Potterton Kingfisher MF RSL100Non-CondensingGas78.0%
Potterton Kingfisher MF RSL50Non-CondensingGas78.5%
Potterton Kingfisher MF RSL60Non-CondensingGas78.5%
Potterton Kingfisher MF RSL70Non-CondensingGas78.1%
Potterton Kingfisher MF RSL80Non-CondensingGas78.2%
Potterton Kingfisher MF RSL90Non-CondensingGas78.1%
Potterton Myson British Gas 30F2Non-CondensingGas75.2%
Potterton Myson British Gas 40F2Non-CondensingGas76.3%
Potterton Myson British Gas 50F2Non-CondensingGas76.7%
Potterton Myson British Gas 60F2Non-CondensingGas76.7%
Potterton Myson British Gas 80F2Non-CondensingGas75.9%
Potterton Myson C40 c40/12Non-CondensingGas55.0%
Potterton Myson C55 c55/16Non-CondensingGas55.0%
Potterton Myson C80 c80/23Non-CondensingGas55.0%
Potterton Myson C95 c95/28Non-CondensingGas55.0%
Potterton Myson Combi 100Non-CondensingGas78.8%
Potterton Myson Combi 80Non-CondensingGas79.2%
Potterton Myson Envoy 30CondensingGas87.2%
Potterton Myson Envoy 30 SystemCondensingGas87.2%
Potterton Myson Envoy 40CondensingGas87.1%
Potterton Myson Envoy 40 SystemCondensingGas87.1%
Potterton Myson Envoy 50CondensingGas87.1%
Potterton Myson Envoy 50 SystemCondensingGas87.1%
Potterton Myson Envoy 60CondensingGas86.8%
Potterton Myson Envoy 60 SystemCondensingGas86.8%
Potterton Myson Envoy 80CondensingGas86.7%
Potterton Myson Envoy 80 FlowsureCondensingGas87.5%
Potterton Myson Envoy 80 Flowsure plusCondensingGas87.5%
Potterton Myson Envoy 80 SystemCondensingGas86.7%
Potterton Myson Fireside 52Non-CondensingGas65.0%
Potterton Myson Flamingo 2 cf20/30Non-CondensingGas65.0%
Potterton Myson Flamingo 2 cf50Non-CondensingGas65.0%
Potterton Myson Flamingo 2 rs20/30Non-CondensingGas65.0%
Potterton Myson Flamingo 2 rs40Non-CondensingGas65.0%
Potterton Myson Flamingo 2 rs50Non-CondensingGas65.0%
Potterton Myson Flamingo cf20-30Non-CondensingGas65.0%
Potterton Myson Flamingo rs20-30Non-CondensingGas65.0%
Potterton Myson Flamingo rs35/50Non-CondensingGas65.0%
Potterton Myson Flamingo rs40Non-CondensingGas65.0%
Potterton Myson Flamingo rs50sNon-CondensingGas65.0%
Potterton Myson FRS 52Non-CondensingGas65.0%
Potterton Myson Heating 35Bf 35bfNon-CondensingGas55.0%
Potterton Myson Heating 35Cf 35cfNon-CondensingGas55.0%
Potterton Myson Heating Apollo 30/50cNon-CondensingGas65.0%
Potterton Myson Heating Apollo Fanfare 15/30Non-CondensingGas72.0%
Potterton Myson Heating Apollo Fanfare 15/30iNon-CondensingGas72.0%
Potterton Myson Heating Apollo Fanfare 30/50Non-CondensingGas72.0%
Potterton Myson Heating Apollo Fanfare 30/50iNon-CondensingGas72.0%
Potterton Myson Heating Economist wm15/30bfNon-CondensingGas65.0%
Potterton Myson Heating Housewarmer smodelNon-CondensingGas65.0%
Potterton Myson Heating Marathon 100bNon-CondensingGas65.0%
Potterton Myson Heating Marathon 100cNon-CondensingGas65.0%
Potterton Myson Heating Marathon 120/150cNon-CondensingGas65.0%
Potterton Myson Heating Marathon 40cNon-CondensingGas65.0%
Potterton Myson Heating Marathon 50cNon-CondensingGas65.0%
Potterton Myson Heating Marathon 60bNon-CondensingGas65.0%
Potterton Myson Heating Marathon 60cNon-CondensingGas65.0%
Potterton Myson Heating Marathon 70bNon-CondensingGas65.0%
Potterton Myson Heating Marathon 70cNon-CondensingGas65.0%
Potterton Myson Heating Marathon 80bNon-CondensingGas65.0%
Potterton Myson Heating Marathon 80cNon-CondensingGas65.0%
Potterton Myson Heating Olympic 20/35bNon-CondensingGas65.0%
Potterton Myson Heating Olympic 20/35cfNon-CondensingGas65.0%
Potterton Myson Heating Olympic 20/35fNon-CondensingGas68.0%
Potterton Myson Heating Olympic 38/50bNon-CondensingGas65.0%
Potterton Myson Heating Olympic 38/50cfNon-CondensingGas65.0%
Potterton Myson Heating Olympic 38/50fNon-CondensingGas68.0%
Potterton Myson Heating Wilson ga40bfNon-CondensingGas55.0%
Potterton Myson Heating Wilson ga40cfNon-CondensingGas55.0%
Potterton Myson Heating Wilson ga53bfNon-CondensingGas55.0%
Potterton Myson Heating Wilson ga53cfNon-CondensingGas55.0%
Potterton Myson Heating Wilson ga70bfNon-CondensingGas55.0%
Potterton Myson Heating Wilson ga70cfNon-CondensingGas55.0%
Potterton Myson Housewarmer 45Non-CondensingGas77.4%
Potterton Myson Housewarmer 55Non-CondensingGas78.4%
Potterton Myson Kingfisher 2 cf150Non-CondensingGas65.0%
Potterton Myson Kingfisher 2 rs40Non-CondensingGas65.0%
Potterton Myson Kingfisher cf100Non-CondensingGas65.0%
Potterton Myson Kingfisher cf40Non-CondensingGas65.0%
Potterton Myson Kingfisher cf40aNon-CondensingGas65.0%
Potterton Myson Kingfisher cf50Non-CondensingGas65.0%
Potterton Myson Kingfisher cf50aNon-CondensingGas65.0%
Potterton Myson Kingfisher cf60Non-CondensingGas65.0%
Potterton Myson Kingfisher cf80Non-CondensingGas65.0%
Potterton Myson Kingfisher Mf CF 100Non-CondensingGas76.9%
Potterton Myson Kingfisher Mf CF 40Non-CondensingGas76.8%
Potterton Myson Kingfisher Mf CF 50Non-CondensingGas76.7%
Potterton Myson Kingfisher Mf CF 60Non-CondensingGas76.8%
Potterton Myson Kingfisher Mf CF 70Non-CondensingGas76.5%
Potterton Myson Kingfisher Mf CF 80Non-CondensingGas76.9%
Potterton Myson Kingfisher Mf CF 90Non-CondensingGas77.6%
Potterton Myson Kingfisher Mf RS 100Non-CondensingGas76.9%
Potterton Myson Kingfisher Mf RS 40Non-CondensingGas76.8%
Potterton Myson Kingfisher Mf RS 50Non-CondensingGas76.7%
Potterton Myson Kingfisher Mf RS 60Non-CondensingGas76.8%
Potterton Myson Kingfisher Mf RS 70Non-CondensingGas76.5%
Potterton Myson Kingfisher Mf RS 80Non-CondensingGas76.9%
Potterton Myson Kingfisher Mf RS 90Non-CondensingGas77.6%
Potterton Myson Kingfisher rs100Non-CondensingGas65.0%
Potterton Myson Kingfisher rs60Non-CondensingGas65.0%
Potterton Myson Kingfisher rs80Non-CondensingGas65.0%
Potterton Myson Netaheat Electronic 10/16eNon-CondensingGas68.0%
Potterton Myson Netaheat Electronic 16/22Non-CondensingGas65.0%
Potterton Myson Puma 100Non-CondensingGas74.8%
Potterton Myson Puma 100 SecurityNon-CondensingGas74.8%
Potterton Myson Puma 100eNon-CondensingGas78.8%
Potterton Myson Puma 100e SecurityNon-CondensingGas78.8%
Potterton Myson Puma 100ecNon-CondensingGas78.8%
Potterton Myson Puma 80Non-CondensingGas75.2%
Potterton Myson Puma 80 SecurityNon-CondensingGas75.2%
Potterton Myson Puma 80eNon-CondensingGas79.2%
Potterton Myson Puma 80e SecurityNon-CondensingGas79.2%
Potterton Myson Puma Flowsure plusNon-CondensingGas79.6%
Potterton Myson Rs38/11 rs38/11Non-CondensingGas55.0%
Potterton Myson Rs50/15 rs50/15Non-CondensingGas55.0%
Potterton Myson Rs70/21 rs70/21Non-CondensingGas55.0%
Potterton Myson Scottish Gas 30F2Non-CondensingGas75.2%
Potterton Myson Scottish Gas 40F2Non-CondensingGas76.3%
Potterton Myson Scottish Gas 50F2Non-CondensingGas76.7%
Potterton Myson Scottish Gas 60F2Non-CondensingGas76.7%
Potterton Myson Scottish Gas 80F2Non-CondensingGas75.9%
Potterton Myson Statesman FlowsureNon-CondensingOil78.3%
Potterton Myson Statesman Flowsure plusNon-CondensingOil78.3%
Potterton Myson Statesman Kitchen 45/50 KeroseneNon-CondensingOil85.1%
Potterton Myson Statesman Kitchen 50/70 Gas oilNon-CondensingOil81.4%
Potterton Myson Statesman Kitchen 50/70 KeroseneNon-CondensingOil81.4%
Potterton Myson Statesman Kitchen 70/90 Gas oilNon-CondensingOil84.8%
Potterton Myson Statesman Kitchen 70/90 KeroseneNon-CondensingOil84.8%
Potterton Myson Statesman Kitchen 90/110 Gas oilNon-CondensingOil81.9%
Potterton Myson Statesman Kitchen 90/110 KeroseneNon-CondensingOil81.9%
Potterton Myson Statesman System 65/85Non-CondensingOil80.0%
Potterton Myson Statesman Utility 50/70 Gas oilNon-CondensingOil81.4%
Potterton Myson Statesman Utility 50/70 KeroseneNon-CondensingOil81.4%
Potterton Myson Statesman Utility 70/90 Gas oilNon-CondensingOil84.8%
Potterton Myson Statesman Utility 70/90 KeroseneNon-CondensingOil84.8%
Potterton Myson Statesman Utility 90/110 Gas oilNon-CondensingOil81.9%
Potterton Myson Statesman Utility 90/110 KeroseneNon-CondensingOil81.9%
Potterton Myson Suprima 100Non-CondensingGas78.3%
Potterton Myson Suprima 120Non-CondensingGas77.8%
Potterton Myson Suprima 30Non-CondensingGas76.6%
Potterton Myson Suprima 40Non-CondensingGas76.8%
Potterton Myson Suprima 50Non-CondensingGas77.5%
Potterton Myson Suprima 60Non-CondensingGas77.9%
Potterton Myson Suprima 70Non-CondensingGas78.4%
Potterton Myson Suprima 80Non-CondensingGas77.2%
Potterton Osprey 2 CFL 125Non-CondensingGas78.6%
Potterton Osprey 2 CFL 150Non-CondensingGas78.1%
Potterton Osprey 2 CFL 180Non-CondensingGas78.7%
Potterton Osprey 2 CFL 220Non-CondensingGas78.0%
Potterton Paramount 40 Natural GasCondensingGas88.6%
Potterton Paramount 60 Natural GasCondensingGas88.5%
Potterton Performa 12 SL HECondensingGas85.8%
Potterton Performa 15 SL HECondensingGas85.6%
Potterton Performa 18 SL HECondensingGas85.6%
Potterton Performa 21 SL HECondensingGas85.6%
Potterton Performa 24Non-CondensingGas78.6%
Potterton Performa 24 Eco HECondensingLPG86.8%
Potterton Performa 24 SL HECondensingGas85.6%
Potterton Performa 24i HECondensingLPG86.8%
Potterton Performa 28Non-CondensingGas78.1%
Potterton Performa 28iNon-CondensingGas78.1%
Potterton Performa 30 HECondensingLPG86.9%
Potterton Performa 9 SL HECondensingGas85.6%
Potterton Performa System 12 HECondensingLPG86.4%
Potterton Performa System 12eNon-CondensingGas78.9%
Potterton Performa System 18 HECondensingLPG86.9%
Potterton Performa System 18eNon-CondensingGas78.8%
Potterton Performa System 24 HECondensingLPG86.9%
Potterton Performa System 24eNon-CondensingGas78.7%
Potterton Performa System 28 HECondensingLPG87.0%
Potterton Performa System 28eNon-CondensingGas78.2%
Potterton Powermax HE 115 CPCondensingGas89.5%
Potterton Powermax HE 115 CPIHCondensingGas89.5%
Potterton Powermax HE 150 CPCondensingGas89.6%
Potterton Powermax HE 150 CPIHCondensingGas89.6%
Potterton Powermax HE 85 CPCondensingGas89.5%
Potterton Powermax HE 85 CPIHCondensingGas89.5%
Potterton Profile 100eNon-CondensingGas73.9%
Potterton Profile 18HOCondensingGas89.2%
Potterton Profile 18SCondensingGas89.2%
Potterton Profile 24HOCondensingGas89.6%
Potterton Profile 24SCondensingGas89.2%
Potterton Profile 30HOCondensingGas89.6%
Potterton Profile 30SCondensingGas89.6%
Potterton Profile 40eNon-CondensingGas71.8%
Potterton Profile 40eLNon-CondensingGas78.0%
Potterton Profile 50eNon-CondensingGas75.4%
Potterton Profile 50eLNon-CondensingGas78.3%
Potterton Profile 60eNon-CondensingGas75.1%
Potterton Profile 60eLNon-CondensingGas78.2%
Potterton Profile 80eNon-CondensingGas74.4%
Potterton Profile 80eLNon-CondensingGas78.4%
Potterton Promax 12 HE PlusCondensingGas88.7%
Potterton Promax 12 System ErPCondensingGas89.0%
Potterton Promax 15 System ErPCondensingGas89.0%
Potterton Promax 15/2 HE PlusCondensingGas89.4%
Potterton Promax 18 HE PlusCondensingGas88.7%
Potterton Promax 18 System ErPCondensingGas89.0%
Potterton Promax 24 Combi ErPCondensingGas89.0%
Potterton Promax 24 Store ErP 115i Cylinder AssemblyCondensingGas89.1%
Potterton Promax 24 Store ErP 150i Cylinder AssemblyCondensingGas89.2%
Potterton Promax 24 Store ErP 90i Cylinder AssemblyCondensingGas89.1%
Potterton Promax 24 System ErPCondensingGas89.0%
Potterton Promax 24/2 HE PlusCondensingGas89.6%
Potterton Promax 28 Combi ErPCondensingGas89.0%
Potterton Promax 30 HE PlusCondensingGas88.8%
Potterton Promax 32 System ErPCondensingGas89.0%
Potterton Promax 33 Combi ErPCondensingGas88.9%
Potterton Promax Combi 24 HE PlusCondensingGas88.6%
Potterton Promax Combi 24 HE Plus ACondensingGas89.0%
Potterton Promax Combi 24 HE Plus LPGCondensingLPG91.0%
Potterton Promax Combi 28 HE PlusCondensingGas88.6%
Potterton Promax Combi 28 HE Plus ACondensingGas89.0%
Potterton Promax Combi 33 HE PlusCondensingGas88.5%
Potterton Promax Combi 33 HE Plus ACondensingGas88.9%
Potterton Promax FSB 30 HECondensingGas88.8%
Potterton Promax HE Store 115 LitreCondensingGas89.1%
Potterton Promax HE Store 150 LitreCondensingGas89.2%
Potterton Promax HE Store 90 LitreCondensingGas89.1%
Potterton Promax SL 12CondensingGas88.7%
Potterton Promax SL 12 Heat ErPCondensingGas88.7%
Potterton Promax SL 15CondensingGas89.0%
Potterton Promax SL 15 Heat ErPCondensingGas89.4%
Potterton Promax SL 18CondensingGas88.7%
Potterton Promax SL 18 Heat ErPCondensingGas88.7%
Potterton Promax SL 24CondensingGas88.8%
Potterton Promax SL 24 Heat ErPCondensingGas88.8%
Potterton Promax SL 30CondensingGas88.8%
Potterton Promax SL 30 Heat ErPCondensingGas88.8%
Potterton Promax System 12 HE PlusCondensingGas88.6%
Potterton Promax System 12 HE Plus ACondensingGas89.0%
Potterton Promax System 15 HE PlusCondensingGas88.7%
Potterton Promax System 15 HE Plus ACondensingGas89.0%
Potterton Promax System 18 HE PlusCondensingGas88.7%
Potterton Promax System 18 HE Plus ACondensingGas89.0%
Potterton Promax System 24 HE PlusCondensingGas88.7%
Potterton Promax System 24 HE Plus ACondensingGas89.0%
Potterton Promax System 24 HE Plus LPGCondensingLPG91.1%
Potterton Promax System 32 HE PlusCondensingGas88.6%
Potterton Promax System 32 HE Plus ACondensingGas89.0%
Potterton Promax Ultra Combi 24 ErPCondensingGas89.1%
Potterton Promax Ultra Combi 28 ErPCondensingGas89.1%
Potterton Promax Ultra Combi 33 ErPCondensingGas89.1%
Potterton Promax Ultra Combi 40 ErPCondensingGas89.1%
Potterton Scottish Gas Potterton PrecisionCondensingGas88.8%
Potterton Statesman 45/50LNon-CondensingOil85.1%
Potterton Statesman 50/70LNon-CondensingOil85.4%
Potterton Statesman 70/90LNon-CondensingOil84.9%
Potterton Statesman 90/110LNon-CondensingOil84.7%
Potterton Statesman Flowsure 70/90LNon-CondensingOil82.9%
Potterton Statesman Flowsure Plus 70/90LNon-CondensingOil83.0%
Potterton Statesman System 70/90LNon-CondensingOil84.9%
Potterton Statesman Utility 110/130LNon-CondensingOil84.3%
Potterton Statesman Utility 130/150LNon-CondensingOil85.3%
Potterton Statesman Utility 50/70LNon-CondensingOil85.4%
Potterton Statesman Utility 70/90LNon-CondensingOil84.9%
Potterton Statesman Utility 90/110LNon-CondensingOil84.7%
Potterton Suprima 100LNon-CondensingGas78.0%
Potterton Suprima 120LNon-CondensingGas78.7%
Potterton Suprima 30 HECondensingGas85.6%
Potterton Suprima 30LNon-CondensingGas78.0%
Potterton Suprima 40 HECondensingGas85.8%
Potterton Suprima 40LNon-CondensingGas78.5%
Potterton Suprima 50 HECondensingGas85.6%
Potterton Suprima 50LNon-CondensingGas78.1%
Potterton Suprima 60 HECondensingGas85.6%
Potterton Suprima 60LNon-CondensingGas78.1%
Potterton Suprima 70 HECondensingGas85.6%
Potterton Suprima 70LNon-CondensingGas78.6%
Potterton Suprima 80 HECondensingGas85.6%
Potterton Suprima 80LNon-CondensingGas78.8%
Potterton Titanium 12 HeatCondensingGas89.1%
Potterton Titanium 15 HeatCondensingGas89.1%
Potterton Titanium 18 HeatCondensingGas89.1%
Potterton Titanium 24CondensingGas89.0%
Potterton Titanium 24 Combi ErPCondensingGas88.6%
Potterton Titanium 24 HeatCondensingGas89.1%
Potterton Titanium 28CondensingGas89.0%
Potterton Titanium 28 Combi ErPCondensingGas88.6%
Potterton Titanium 30 HeatCondensingGas89.1%
Potterton Titanium 33CondensingGas88.9%
Potterton Titanium 33 Combi ErPCondensingGas88.5%
Potterton Titanium 40CondensingGas88.9%
Potterton Titanium 40 Combi ErPCondensingGas88.5%
Potterton Ultra 12 Heat 12CondensingGas89.2%
Potterton Ultra 12 System 12CondensingLPG90.3%
Potterton Ultra 15 Heat 15CondensingGas89.2%
Potterton Ultra 15 System 15CondensingLPG90.2%
Potterton Ultra 18 Heat 18CondensingGas89.2%
Potterton Ultra 18 System 18CondensingLPG90.2%
Potterton Ultra 21 Heat 21CondensingGas89.2%
Potterton Ultra 24 Heat 24CondensingGas89.1%
Potterton Ultra 24 System 24CondensingLPG90.2%
Potterton Ultra 28 System 28CondensingLPG90.2%
Powermatic Sgm 3gbNon-CondensingGas65.0%
Powermatic Sgm 4gbNon-CondensingGas65.0%
Powermax 140Non-CondensingGas82.1%
Powermax 155Non-CondensingGas80.9%
Powermax 155xNon-CondensingGas82.0%
Powermax 185Non-CondensingGas81.8%
Pro A28CondensingGas88.8%
Pro A32CondensingGas88.8%
Pro A36CondensingGas88.7%
Pro Pro-Combi 100HECondensingGas86.2%
Pro Pro-Combi 120HECondensingGas85.6%
Pro Pro-Combi 85HECondensingGas86.0%
Pro Procombi CT 25CondensingGas89.0%
Pro Procombi CT 29CondensingGas88.9%
Pro Procombi Exclusive 24CondensingGas88.9%
Pro Procombi Exclusive 30CondensingGas89.0%
Pro Procombi Exclusive 35CondensingGas89.0%
Protherm 100ECNon-CondensingGas79.3%
Protherm 80 ENon-CondensingGas78.7%
Protherm 80 ECNon-CondensingGas78.7%
Protherm Protherm 40-50 CINon-CondensingGas78.9%
Protherm Protherm 60-80 CINon-CondensingGas78.3%
Quantum DBCondensingGas88.6%
Quantum DB System BoilerCondensingGas88.6%
Quantum Q 100 LPGCondensingLPG87.2%
Quantum Q 60 LPGCondensingLPG86.9%
Quantum Q 80 LPGCondensingLPG86.6%
Quantum Q50CondensingGas87.2%
R H Ingham Ingham Danesmoor 42Non-CondensingOil65.0%
R H Ingham Ingham Danesmoor 60Non-CondensingOil65.0%
R H Ingham Ingham Danesmoor 80Non-CondensingOil65.0%
R H Ingham Ingham Danesmoor ABK 60/100Non-CondensingOil65.0%
R H Ingham Ingham Danesmoor PJ 20/30Non-CondensingOil65.0%
R H Ingham Ingham Danesmoor PJ 30/45Non-CondensingOil65.0%
R H Ingham Ingham Danesmoor PJ20/30Non-CondensingOil65.0%
Radiant B-condense RH 28CondensingGas85.9%
Radiant B-Condense RHA 28CondensingGas86.3%
Radiant B-Condense RHA 28/100CondensingGas86.8%
Radiant B-condense RHR 28CondensingGas85.8%
Radiant Radiant RBS 24Non-CondensingGas79.0%
Radiant Radiant RK 50CondensingGas88.9%
Radiant RBA CS 30Non-CondensingGas80.8%
Radiant RBA CS 30/100Non-CondensingGas81.1%
Radiant RBA/CS 100 ENon-CondensingGas78.6%
Radiant RBA/CS 24 ENon-CondensingGas78.3%
Radiant RBC 20 ENon-CondensingGas76.7%
Radiant RBS 20 ENon-CondensingGas77.5%
Radiant RBS 20 E MidyNon-CondensingGas79.6%
Radiant RH 25CondensingGas85.9%
Radiant RH 25/BCondensingGas85.9%
Radiant RH 29CondensingGas85.6%
Radiant RH 29/BCondensingGas85.6%
Radiant RH 34CondensingGas85.6%
Radiant RH 34/BCondensingGas85.6%
Radiant RHA 25CondensingGas86.3%
Radiant RHA 25/100CondensingGas86.8%
Radiant RHA 29CondensingGas86.0%
Radiant RHA 29/100CondensingGas86.5%
Radiant RHA 34CondensingGas86.0%
Radiant RHA 34/100CondensingGas86.5%
Radiant RHR 25CondensingGas85.8%
Radiant RHR 29CondensingGas85.5%
Radiant RHR 34CondensingGas85.5%
Radiant RK 18CondensingGas89.0%
Radiant RK 18/BCondensingGas89.0%
Radiant RK 25CondensingGas88.4%
Radiant RK 29CondensingGas88.8%
Radiant RK 29/BCondensingGas88.8%
Radiant RK 34CondensingGas89.0%
Radiant RK 34/BCondensingGas89.0%
Radiant RKA 100CondensingGas89.3%
Radiant RKA 18CondensingGas89.4%
Radiant RKA 18/100CondensingGas89.9%
Radiant RKA 18/8CondensingGas88.9%
Radiant RKA 25CondensingGas88.9%
Radiant RKA 25/100CondensingGas89.3%
Radiant RKA 25/8CondensingGas88.3%
Radiant RKA 29CondensingGas89.2%
Radiant RKA 29/100CondensingGas89.7%
Radiant RKA 34CondensingGas89.4%
Radiant RKA 34/100CondensingGas89.8%
Radiant RKR 18CondensingGas88.9%
Radiant RKR 25CondensingGas88.3%
Radiant RKR 29CondensingGas88.7%
Radiant RKR 34CondensingGas88.9%
Radiant RMAS 20Non-CondensingGas79.1%
Radiant RMAS 21 E NOxNon-CondensingGas80.3%
Radiant RMAS 21 E/3SNon-CondensingGas80.9%
Radiant RMAS 24 ENon-CondensingGas78.1%
Radiant RMAS 30 ENon-CondensingGas80.7%
Radiant RS 20 ENon-CondensingGas78.5%
Radiant RS 21 E NOxNon-CondensingGas79.8%
Radiant RS 21 E/3SNon-CondensingGas80.4%
Radiant RS 24 ENon-CondensingGas77.7%
Radiant RS 24 E MidyNon-CondensingGas79.4%
Radiant RS 30 ENon-CondensingGas80.2%
Radiant RSF 20 ENon-CondensingGas78.4%
Radiant RSF 21 E NOxNon-CondensingGas79.7%
Radiant RSF 21 E/3SNon-CondensingGas80.3%
Radiant RSF 24 ENon-CondensingGas77.6%
Radiant RSF 24 E SlimNon-CondensingGas79.3%
Radiant RSF 30 ENon-CondensingGas80.1%
Ravenheat Combiplus 32 (T) LPGCondensingLPG90.4%
Ravenheat Combiplus 32 (T) Natural GasCondensingGas89.4%
Ravenheat Combiplus 32 LPGCondensingLPG90.4%
Ravenheat Combiplus 32 Natural GasCondensingGas89.4%
Ravenheat Combistore 32 (T) LPGCondensingLPG90.4%
Ravenheat Combistore 32 (T) Natural GasCondensingGas89.4%
Ravenheat Combistore 32 LPGCondensingLPG90.4%
Ravenheat Combistore 32 Natural GasCondensingGas89.4%
Ravenheat CS 80(T) Natural GasCondensingGas88.5%
Ravenheat CS 90 (T) Natural GasCondensingGas88.7%
Ravenheat CSI 120 Low Nox Natural GasCondensingGas89.4%
Ravenheat CSI 120T Low Nox Timeclock Natural GasCondensingGas89.4%
Ravenheat CSI 150 System T Low NoxCondensingGas89.0%
Ravenheat CSI 150 T Low NoxCondensingGas88.9%
Ravenheat CSI 85CondensingGas86.9%
Ravenheat CSI 85 ACondensingGas90.0%
Ravenheat CSI 85 A TCondensingGas90.0%
Ravenheat CSI 85 AAACondensingLPG89.2%
Ravenheat CSI 85 AAATCondensingLPG89.2%
Ravenheat CSI 85 LPGCondensingLPG88.9%
Ravenheat CSI 85TCondensingGas86.9%
Ravenheat CSI 85T LPGCondensingLPG88.9%
Ravenheat CSI PrimaryCondensingGas86.5%
Ravenheat CSI Primary 150 Low NoxCondensingLPG90.0%
Ravenheat CSI Primary ACondensingGas88.8%
Ravenheat CSI Primary AAACondensingLPG89.3%
Ravenheat CSI primary Low Nox Natural GasCondensingGas89.5%
Ravenheat CSI Primary LPGCondensingLPG88.5%
Ravenheat CSI SystemCondensingGas87.0%
Ravenheat CSI System ACondensingGas90.1%
Ravenheat CSI System A TCondensingGas90.1%
Ravenheat CSI System AAACondensingLPG89.3%
Ravenheat CSI System AAA TCondensingLPG89.3%
Ravenheat CSI system Low Nox Natural GasCondensingGas89.5%
Ravenheat CSI System TCondensingGas87.0%
Ravenheat CSI systemT Low Nox Timeclock Natural GasCondensingGas89.5%
Ravenheat HE 80(T) Natural GasCondensingGas88.6%
Ravenheat HE 85 ACondensingGas90.0%
Ravenheat HE 85 A LPGCondensingLPG91.2%
Ravenheat HE 85 AAACondensingLPG89.2%
Ravenheat HE 85 AAATCondensingLPG89.2%
Ravenheat HE 85A TCondensingGas90.0%
Ravenheat HE 85A T LPGCondensingLPG91.2%
Ravenheat HE 90(T) Natural gasCondensingGas88.7%
Ravenheat HE 98 (T)CondensingGas88.7%
Ravenheat HE Primary ACondensingGas88.8%
Ravenheat HE Primary A LPGCondensingLPG90.8%
Ravenheat HE Primary AAACondensingLPG89.3%
Ravenheat HE System ACondensingGas90.1%
Ravenheat HE System A LPGCondensingLPG91.3%
Ravenheat HE System A TCondensingGas90.1%
Ravenheat HE System A T LPGCondensingLPG91.3%
Ravenheat HE System AAACondensingLPG89.3%
Ravenheat HE System AAA TCondensingLPG89.3%
Ravenheat Little Star LS 100Non-CondensingGas79.6%
Ravenheat Little Star LS 100 TNon-CondensingGas79.6%
Ravenheat Little Star LS 80Non-CondensingGas79.6%
Ravenheat Little Star LS 80 (T)Non-CondensingGas79.6%
Ravenheat RSF 100ENon-CondensingGas76.6%
Ravenheat RSF 100E LPGNon-CondensingLPG78.3%
Ravenheat RSF 100E*Non-CondensingGas78.9%
Ravenheat RSF 100ETNon-CondensingGas76.6%
Ravenheat RSF 100ET LPGNon-CondensingLPG78.3%
Ravenheat RSF 100ET*Non-CondensingGas78.9%
Ravenheat RSF 20/20ENon-CondensingGas77.1%
Ravenheat RSF 20/20E LPGNon-CondensingLPG78.9%
Ravenheat RSF 20/20ETNon-CondensingGas77.1%
Ravenheat RSF 20/20ET LPGNon-CondensingLPG78.9%
Ravenheat RSF 25/20ENon-CondensingGas76.5%
Ravenheat RSF 25/20E LPGNon-CondensingLPG78.2%
Ravenheat RSF 25/20ETNon-CondensingGas76.5%
Ravenheat RSF 25/20ET LPGNon-CondensingLPG78.2%
Ravenheat RSF 25/25ENon-CondensingGas76.6%
Ravenheat RSF 25/25E LPGNon-CondensingLPG78.3%
Ravenheat RSF 25/25ETNon-CondensingGas76.6%
Ravenheat RSF 25/25ET LPGNon-CondensingLPG78.3%
Ravenheat RSF 82 ENon-CondensingGas78.5%
Ravenheat RSF 82 ETNon-CondensingGas78.5%
Ravenheat RSF 820/20Non-CondensingGas74.5%
Ravenheat RSF 820/20TNon-CondensingGas74.5%
Ravenheat RSF 84 ETNon-CondensingGas77.1%
Ravenheat RSF 84ENon-CondensingGas77.1%
Ravenheat RSF 84E LPGNon-CondensingLPG78.9%
Ravenheat RSF 84E*Non-CondensingGas78.8%
Ravenheat RSF 84ET LPGNon-CondensingLPG78.9%
Ravenheat RSF 84ET*Non-CondensingGas78.8%
Ravenheat Silver Star 24Non-CondensingGas79.6%
Ravenheat Silver Star 24 LPGNon-CondensingLPG81.4%
Ravenheat Silver Star 24TNon-CondensingGas79.6%
Ravenheat Silver Star 24T LPGNon-CondensingLPG81.4%
Ravenheat Silver Star 29Non-CondensingGas79.6%
Ravenheat Silver Star 29 LPGNon-CondensingLPG81.4%
Ravenheat Silver Star 29TNon-CondensingGas79.6%
Ravenheat Silver Star 29T LPGNon-CondensingLPG81.4%
Ravenheat White Star 24Non-CondensingGas79.6%
Ravenheat White Star 24 LPGNon-CondensingLPG81.4%
Ravenheat White Star 24TNon-CondensingGas79.6%
Ravenheat White Star 24T LPGNon-CondensingLPG81.4%
Ravenheat White Star 29Non-CondensingGas79.6%
Ravenheat White Star 29 LPGNon-CondensingLPG81.4%
Ravenheat White Star 29TNon-CondensingGas79.6%
Ravenheat White Star 29T LPGNon-CondensingLPG81.4%
Remeha Avanta 12 VCondensingGas88.8%
Remeha Avanta 15vCondensingGas88.9%
Remeha Avanta 18VCondensingGas89.2%
Remeha Avanta 24 VCondensingGas88.9%
Remeha Avanta 28 ECOCondensingGas89.1%
Remeha Avanta 30 VCondensingGas88.9%
Remeha Avanta Exclusive 28cCondensingGas89.1%
Remeha Avanta Exclusive 35cCondensingGas89.5%
Remeha Avanta Exclusive 39cCondensingGas89.7%
Remeha Avanta Plus 18SCondensingGas88.8%
Remeha Avanta Plus 24 CCondensingGas88.7%
Remeha Avanta Plus 30 SCondensingGas88.9%
Remeha Quinta Pro 30CondensingGas88.8%
Remeha Quinta Pro 45CondensingGas88.7%
Remeha Quinta Pro 65CondensingGas89.3%
Rhino Savannah R15/20 KitchenCondensingOil92.0%
Rhino Savannah R20/26 KitchenCondensingOil92.0%
Rhino Savannah R26/35 KitchenCondensingOil91.0%
Rhino Savannah RB 15/20 BoilerhouseCondensingOil92.0%
Rhino Savannah RB20/26 BoilerhouseCondensingOil92.0%
Rhino Savannah RB26/35 BoilerhouseCondensingOil91.0%
Rhino Savannah RC15/20 Combi BoilerCondensingOil90.3%
Rhino Savannah RC20/26 Combi BoilerCondensingOil90.3%
Rhino Savannah RC26/35 Combi BoilerCondensingOil89.3%
Rhino Savannah RH15/20 HeatpacCondensingOil92.0%
Rhino Savannah RH20/26 HeatpacCondensingOil92.0%
Rhino Savannah RH26/35 HeatpacCondensingOil91.0%
Rhino Savannah RP15/20 CombipacCondensingOil90.3%
Rhino Savannah RP20/26 CombipacCondensingOil90.3%
Rhino Savannah RP26/35 CombipacCondensingOil89.3%
Rinnai UK E32SCondensingGas89.5%
ROC L1GB37-B40CPCondensingGas89.1%
ROC LJLGB26-B28CPCondensingGas89.6%
ROC LJLGB26-B28CVCondensingGas89.6%
Rotex A1 BO 15-eCondensingOil91.3%
Rotex A1 BO 20-eCondensingOil91.2%
Rotex A1 BO 27-eCondensingOil90.7%
Rotex A1 BO 34-eCondensingOil90.4%
Rotex A1 BO 35iCondensingOil90.3%
Rotex GCU 25CondensingGas89.1%
Rotex GCU 25 FCondensingLPG90.2%
Rotex GCU 35CondensingGas88.7%
Rotex GCU 35 FCondensingLPG89.5%
Rotex GCU Compact 315CondensingGas89.1%
Rotex GCU Compact 315 BIVCondensingGas89.1%
Rotex GCU Compact 324CondensingGas88.7%
Rotex GCU Compact 324 BIVCondensingGas88.7%
Rotex GCU Compact 515CondensingGas89.2%
Rotex GCU Compact 515 BIVCondensingGas89.2%
Rotex GCU Compact 524CondensingGas88.8%
Rotex GCU Compact 524 BIVCondensingGas88.8%
Rotex GCU Compact 533CondensingGas89.5%
Rotex GCU Compact 533 BIVCondensingGas89.5%
Rotex GSU 25CondensingGas89.1%
Rotex GSU 25 FCondensingLPG90.2%
Rotex GSU 320-eCondensingGas89.7%
Rotex GSU 320F-eCondensingLPG90.7%
Rotex GSU 35CondensingGas88.7%
Rotex GSU 35 FCondensingLPG89.5%
Rotex GSU 520 S-eCondensingGas89.9%
Rotex GSU 520SF-eCondensingLPG90.9%
Rotex GSU 530S-eCondensingGas89.1%
Rotex GSU 530SF-eCondensingLPG90.1%
Rotex GSU 535-eCondensingGas89.7%
Rotex GSU 535F-eCondensingLPG90.7%
Sabre 24Non-CondensingGas80.3%
Sabre 24 LPGNon-CondensingLPG82.2%
Sabre 25 HE PlusCondensingGas89.0%
Sabre 25HECondensingGas86.0%
Sabre 25HE PlusCondensingGas88.5%
Sabre 28Non-CondensingGas80.3%
Sabre 28 LPGNon-CondensingLPG81.8%
Sabre 29 HE PlusCondensingGas88.9%
Sabre 29HECondensingGas86.2%
Sabre 29HE PlusCondensingGas88.9%
Sabre 29HE SystemCondensingGas86.3%
SARIgas EcoTop ETF 28ACondensingGas86.2%
SARIgas EcoTop ETF 28A MACondensingGas86.2%
Sarigas Max MF 25 ANon-CondensingGas79.9%
Sarigas Zoom ZF 420ANon-CondensingGas78.3%
Saturn NCH 30HCondensingOil91.0%
Saturn NHC 25 ECondensingOil89.4%
Saturn NHC 25BCondensingOil89.4%
Saturn NHC 25EHCondensingOil91.7%
Saturn NHC 25HCondensingOil91.7%
Saturn NHC 30 ECondensingOil89.3%
Saturn NHC 30BCondensingOil89.3%
Saturn NHC 30EHCondensingOil91.0%
Saturn NHC 41 ECondensingOil89.3%
Saturn NHC 41BCondensingOil89.3%
Saturn NHC 41EHCondensingOil91.3%
Saturn NHC 41HCondensingOil91.3%
Saunier Duval 500 30bNon-CondensingGas65.0%
Saunier Duval 500 30cNon-CondensingGas65.0%
Saunier Duval 500 30fNon-CondensingGas68.0%
Saunier Duval 500 40bNon-CondensingGas65.0%
Saunier Duval 500 40cNon-CondensingGas65.0%
Saunier Duval 500 40fNon-CondensingGas68.0%
Saunier Duval 500 50bNon-CondensingGas65.0%
Saunier Duval 500 50cNon-CondensingGas65.0%
Saunier Duval 500 50fNon-CondensingGas68.0%
Saunier Duval 500 60bNon-CondensingGas65.0%
Saunier Duval 500 60cNon-CondensingGas65.0%
Saunier Duval 500 60fNon-CondensingGas68.0%
Saunier Duval 500 80bNon-CondensingGas65.0%
Saunier Duval 50ff/LPNon-CondensingLPG80.1%
Saunier Duval Ecosy 24ECondensingGas89.4%
Saunier Duval Ecosy 28ECondensingGas89.2%
Saunier Duval Ecosy SB24ECondensingGas89.5%
Saunier Duval Ecosy SB28ECondensingGas89.3%
Saunier Duval EnviroPlus F28ECondensingGas89.5%
Saunier Duval EnviroPlus F28E SBCondensingGas89.6%
Saunier Duval Envirotek F28ECondensingGas89.5%
Saunier Duval Envirotek F28E SBCondensingGas89.6%
Saunier Duval Isofast Condens F35eCondensingGas88.8%
Saunier Duval Isofast F28ENon-CondensingGas79.4%
Saunier Duval Isofast F35ENon-CondensingGas78.6%
Saunier Duval Isomax F28E ANon-CondensingGas78.9%
Saunier Duval Saunier Duval F30ENon-CondensingGas79.6%
Saunier Duval Sd 235CNon-CondensingGas65.0%
Saunier Duval Sd 623Non-CondensingGas70.0%
Saunier Duval SD Isotwin Condens F35 ECondensingLPG90.2%
Saunier Duval SD Thema Condens F 18 E SBCondensingLPG89.8%
Saunier Duval SD Thema Condens F 24 ECondensingLPG89.7%
Saunier Duval SD Thema Condens F 30 ECondensingLPG89.8%
Saunier Duval SD Themaplus Condens F 30 ECondensingLPG89.8%
Saunier Duval Semia Condens F24ECondensingGas86.1%
Saunier Duval Semia Condens F30ECondensingGas86.1%
Saunier Duval System 400 30Non-CondensingGas68.0%
Saunier Duval System 400 40Non-CondensingGas68.0%
Saunier Duval System 400 55Non-CondensingGas68.0%
Saunier Duval System 400 65Non-CondensingGas68.0%
Saunier Duval System 400 80Non-CondensingGas68.0%
Saunier Duval Thelia 23Non-CondensingGas70.0%
Saunier Duval Thelia 23ENon-CondensingGas70.0%
Saunier Duval Thelia 30Non-CondensingGas70.0%
Saunier Duval Thelia SB23Non-CondensingGas70.0%
Saunier Duval Thelia Twin 28eNon-CondensingGas70.0%
Saunier Duval Thema Classic F24ENon-CondensingGas78.3%
Saunier Duval Thema Classic F24E PlusNon-CondensingGas78.3%
Saunier Duval Thema Classic F30E PlusNon-CondensingGas79.6%
Saunier Duval Thema Classic F30E SBNon-CondensingGas79.7%
Saunier Duval Thema Classic F35ENon-CondensingGas78.6%
Saunier Duval Themis 23Non-CondensingGas65.0%
Saunier Duval Xeon 18 HECondensingGas88.6%
Saunier Duval Xeon 30 HECondensingGas88.7%
Saunier Duval Xeon 30ffNon-CondensingGas79.7%
Saunier Duval Xeon 30ff/LPNon-CondensingLPG78.0%
Saunier Duval Xeon 30HE LPGCondensingLPG90.7%
Saunier Duval Xeon 40ffNon-CondensingGas78.7%
Saunier Duval Xeon 40ff/LPNon-CondensingLPG78.0%
Saunier Duval Xeon 50ffNon-CondensingGas78.8%
Saunier Duval Xeon 60ffNon-CondensingGas79.4%
Saunier Duval Xeon 60ff/LPNon-CondensingLPG77.5%
Saunier Duval Xeon 80 ffNon-CondensingGas79.4%
Saunier Duval Xeon 80ffNon-CondensingGas76.3%
Saunier Duval Xeon 80ff/LPNon-CondensingLPG79.8%
Saunier Duval Xeon Condens 18CondensingGas88.6%
Saunier Duval Xeon Condens 30CondensingGas88.8%
Saunier Duval Xeon Condens 30 LPGCondensingLPG90.7%
Saunier Duval Xeon40ffNon-CondensingGas75.4%
Scottish Gas 330+CondensingGas88.7%
Servowarm Elite 21CondensingGas85.6%
Servowarm Elite 21 Condensing CombinationCondensingGas86.2%
Servowarm Elite 21 PlusCondensingGas86.3%
Servowarm Elite HE 30CondensingGas83.8%
Servowarm Elite HE 40CondensingGas84.2%
Servowarm Elite HE 50CondensingGas84.8%
Servowarm Elite HE 70/80CondensingGas84.5%
Servowarm Elite HE CombiCondensingGas85.2%
Sile SpA Condensa 23 BICondensingGas89.2%
Sile SpA Condensa 23 NCondensingGas88.9%
Sile SpA Condensa 23 RCondensingGas88.8%
Sile SpA Condensa 32 BICondensingGas88.7%
Sile SpA Condensa 32 MaxiCondensingGas88.7%
Sile SpA Condensa 32 NCondensingGas88.4%
Sile SpA Condensa 32 NNCondensingGas89.1%
Sile SpA Condensa 32 RCondensingGas89.0%
Sile SpA Condensa 50 MaxiCondensingGas89.5%
Sile SpA Condensa 50 NCondensingGas89.1%
Sile SpA Condensa 50 N3VCondensingGas89.2%
Sile SpA Condensa 50 RCondensingGas89.0%
Sile SpA SuperRapida 22Non-CondensingGas79.7%
Sile SpA SuperRapida 26Non-CondensingGas79.8%
Sile SpA SuperRapida 31Non-CondensingGas79.6%
Sile SpA Turbinox 21 BINon-CondensingLPG80.9%
Sile SpA Turbinox 21 NNon-CondensingLPG80.6%
Sile SpA Turbinox 25 BINon-CondensingLPG81.6%
Sile SpA Turbinox 25 NNon-CondensingLPG81.3%
Sile SpA Turbinox 30Non-CondensingGas79.3%
sime 1 R 4 FreestandingNon-CondensingOil81.6%
sime 1 R 5 FreestandingNon-CondensingOil82.0%
sime 1 R 6 FreestandingNon-CondensingOil82.3%
Sime Brava DGT HE 25CondensingGas89.1%
Sime Brava DGT HE 30CondensingGas88.9%
Sime Brava DGT HE 35CondensingGas89.1%
sime Dewy 30/130 HE FSCondensingLPG91.3%
sime Dewy 30/80 HE FSCondensingLPG91.3%
sime Dewy HE 30/50 WMCondensingGas88.7%
sime Dewy HE 30/50 WM LPGCondensingLPG89.7%
Sime Ecomfort 25 HECondensingGas86.9%
sime Ecomfort 30 HECondensingGas86.8%
sime Ecomfort 30 HE LPGCondensingLPG87.8%
Sime Ecomfort 35 HECondensingGas86.4%
Sime Ecomfort Plus 25 HECondensingLPG89.5%
Sime Ecomfort Plus 30 HECondensingLPG89.6%
Sime Ecomfort System 25 HECondensingGas87.0%
Sime Ecomfort System Plus 25 HECondensingLPG89.6%
sime Estelle 3Non-CondensingOil83.4%
sime Estelle 4Non-CondensingOil83.6%
sime Estelle 5Non-CondensingOil83.8%
sime Estelle 6Non-CondensingOil83.9%
sime Estelle 7Non-CondensingOil84.1%
Sime Estelle HE 4CondensingOil91.3%
Sime Estelle HE 5CondensingOil91.3%
Sime Estelle HE B4 INOXCondensingOil89.6%
sime FE-25HE UK/1 NCondensingGas89.2%
sime FE-30HE UK/1 NCondensingGas89.7%
Sime Format 100 BNon-CondensingLPG82.2%
sime Format 100 CNon-CondensingGas79.2%
sime Format 100 C TSNon-CondensingGas80.3%
sime Format 100 C TS LPGNon-CondensingLPG82.2%
sime Format 110 CNon-CondensingGas78.4%
sime Format 110 C LPGNon-CondensingLPG80.2%
sime Format 110 C TSNon-CondensingGas80.3%
sime Format 110 C TS LPGNon-CondensingLPG82.2%
sime Format 25 HECondensingGas89.2%
sime Format 25 HE LPGCondensingLPG90.2%
sime Format 30 HECondensingGas89.7%
sime Format 30 HE LPGCondensingLPG90.7%
Sime Format 80 BNon-CondensingLPG82.2%
sime Format 80 CNon-CondensingGas79.0%
sime Format 80 C TSNon-CondensingGas80.3%
sime Format 80 C TS LPGNon-CondensingLPG82.2%
Sime Format DGT HE 12 SystemCondensingGas89.2%
Sime Format DGT HE 20 SystemCondensingGas88.7%
Sime Format DGT HE 25CondensingGas88.6%
Sime Format DGT HE 25/15CondensingGas88.6%
Sime Format DGT HE 30CondensingGas88.8%
Sime Format DGT HE 35CondensingGas89.1%
sime Format System 24Non-CondensingGas79.1%
sime Format System 24 EINon-CondensingGas79.1%
sime Format System 24TSNon-CondensingGas80.4%
sime Format System 24TS LPGNon-CondensingLPG82.3%
sime Format System 25 HECondensingGas89.3%
sime Format System 25 HE LPGCondensingLPG90.3%
sime Format System 30Non-CondensingGas79.3%
sime Format System 30 EINon-CondensingGas79.3%
sime Format System 30 HECondensingGas89.8%
sime Format System 30 HE LPGCondensingLPG90.8%
sime Format System 30TSNon-CondensingGas80.4%
sime Format System 30TS LPGNon-CondensingLPG82.3%
sime Format System 35TSNon-CondensingGas80.4%
sime Format System 35TS LPGNon-CondensingLPG82.3%
sime Friendly Format 100 ENon-CondensingLPG80.4%
sime Friendly Format 100ENon-CondensingGas78.6%
sime Friendly Format 80Non-CondensingLPG81.1%
sime Friendly Format 80 ENon-CondensingLPG81.1%
Sime Heating Products (UK) Format FriendlyNon-CondensingGas79.3%
Sime Heating Products (UK) Format Friendly eNon-CondensingGas79.3%
Sime Heating Products (UK) Format super 100Non-CondensingGas78.6%
Sime Heating Products (UK) Friendly 11010Non-CondensingGas70.0%
Sime Heating Products (UK) Friendly ENon-CondensingGas70.0%
Sime Heating Products (UK) MurrelleNon-CondensingGas75.3%
Sime Heating Products (UK) Sime Super 4Non-CondensingGas78.3%
Sime Heating Products (UK) Super 102 Deluxe 11006Non-CondensingGas70.0%
Sime Meridian HE 25CondensingLPG90.2%
Sime Meridian HE 30CondensingLPG89.9%
Sime Meridian HE 30 CCondensingGas88.9%
Sime Murelle Advanced HE 30CondensingGas88.5%
Sime Murelle Advanced HE 30 ErPCondensingGas88.5%
sime MURELLE ADVANCED HE 30 MkIICondensingGas89.0%
Sime Murelle Advanced HE 40CondensingGas88.6%
Sime Murelle Advanced HE 40 ErPCondensingGas88.6%
sime MURELLE ADVANCED HE 40 MkIICondensingGas89.1%
Sime Murelle Elite HE 25CondensingGas88.4%
Sime Murelle Elite HE 25 ErPCondensingGas88.4%
Sime Murelle Elite HE 30CondensingGas88.5%
Sime Murelle Elite HE 30 ErPCondensingGas88.5%
Sime Murelle Elite HE 35CondensingGas88.5%
Sime Murelle Elite HE 35 ErPCondensingGas88.5%
Sime Murelle Elite HE 35 TCondensingGas88.6%
Sime Murelle Elite HE 35 T ErPCondensingGas88.6%
Sime Murelle Equipe 50BOXCondensingLPG90.0%
Sime Murelle EV HE 12 SystemCondensingGas88.7%
Sime Murelle EV HE 12 TCondensingGas88.7%
Sime Murelle EV HE 20 SystemCondensingGas88.7%
Sime Murelle EV HE 20 TCondensingGas88.7%
Sime Murelle EV HE 25CondensingGas88.8%
Sime Murelle EV HE 25 SystemCondensingGas88.9%
Sime Murelle EV HE 25 TCondensingGas88.9%
Sime Murelle EV HE 25/55CondensingGas89.0%
Sime Murelle EV HE 30CondensingGas88.8%
Sime Murelle EV HE 30 SystemCondensingGas88.9%
Sime Murelle EV HE 30 TCondensingGas88.9%
Sime Murelle EV HE 30/55CondensingLPG90.1%
Sime Murelle EV HE 35CondensingGas88.6%
Sime Murelle EV HE 35 SystemCondensingGas88.7%
Sime Murelle EV HE 35 TCondensingGas88.7%
Sime Murelle HE 12 BFTCondensingGas88.7%
Sime Murelle HE 12 SystemCondensingGas88.7%
Sime Murelle HE 20 BFTCondensingGas88.7%
Sime Murelle HE 20 SystemCondensingGas88.7%
Sime Murelle HE 25 BFCondensingGas88.8%
Sime Murelle HE 25 BFTCondensingGas88.9%
Sime Murelle HE 25 SystemCondensingGas88.9%
Sime Murelle HE 25/55 BFCondensingGas89.0%
Sime Murelle HE 30 BFCondensingGas88.8%
Sime Murelle HE 30 BFTCondensingGas88.9%
Sime Murelle HE 30 SystemCondensingGas88.9%
Sime Murelle HE 30/55 BFCondensingGas89.1%
Sime Murelle HE 35 BFCondensingGas88.6%
Sime Murelle HE 35 BFTCondensingGas88.7%
sime Murelle HE 35 R ErPCondensingLPG89.5%
sime Murelle HE 35 R MCondensingGas89.2%
Sime Murelle HE 35 SystemCondensingGas88.7%
Sime Murelle HE 35RCondensingLPG90.2%
Sime Murelle HE 35R MCondensingLPG90.2%
sime Murelle HE 50 R ErPCondensingLPG89.5%
Sime Murelle HE 50RCondensingLPG90.1%
Sime Murelle HE 50R MCondensingGas89.1%
Sime Murelle HM 25CondensingLPG90.0%
Sime Murelle HM 25TCondensingLPG90.1%
Sime Murelle HM 30CondensingLPG89.5%
Sime Murelle HM 35CondensingLPG90.3%
Sime Murelle HM 35TCondensingLPG90.4%
sime MURELLE ONE HE 25CondensingGas89.1%
Sime Murelle Pro HE 20 RCondensingGas88.7%
Sime Murelle PRO HE 20 R ErPCondensingGas88.6%
sime MURELLE PRO HE 20 R MkIICondensingGas89.1%
Sime Murelle Pro HE 25CondensingGas88.6%
Sime Murelle PRO HE 25 ErPCondensingGas88.5%
Sime Murelle Pro HE 25 HOCondensingGas88.6%
Sime Murelle PRO HE 25 HO ErPCondensingGas88.7%
sime MURELLE PRO HE 25 HO MkIICondensingGas89.2%
Sime Murelle Pro HE 25 LPGCondensingLPG89.6%
Sime Murelle PRO HE 25 LPG ErPCondensingLPG89.5%
Sime Murelle Pro HE 25 R IECondensingGas88.6%
Sime Murelle PRO HE 25 R IE ErPCondensingGas88.6%
Sime Murelle Pro HE 30CondensingGas88.5%
Sime Murelle PRO HE 30 ErPCondensingGas88.5%
Sime Murelle Pro HE 30 IECondensingGas88.5%
Sime Murelle PRO HE 30 IE ErPCondensingGas88.5%
sime MURELLE PRO HE 30 MkIICondensingGas89.0%
Sime Murelle Pro HE 30 RCondensingGas88.6%
Sime Murelle PRO HE 30 R ErPCondensingGas88.6%
Sime Murelle Pro HE 30 R IECondensingGas88.6%
Sime Murelle PRO HE 30 R IE ErPCondensingGas88.6%
sime MURELLE PRO HE 30 R MkIICondensingGas89.1%
Sime Murelle Pro HE 35 R IECondensingGas88.5%
Sime Murelle PRO HE 35 R IE ErPCondensingGas88.6%
Sime Murelle Pro HE 40 R IECondensingGas88.5%
Sime Murelle PRO HE 40 R IE ErPCondensingGas88.7%
sime Planet Dewy 110CondensingGas88.3%
sime Planet Dewy 110 ACondensingGas89.9%
sime Planet Dewy 110 A (LPG)CondensingLPG90.9%
sime Planet Dewy 110 T ACondensingGas90.0%
sime Planet Dewy 110 T A (LPG)CondensingLPG91.0%
sime Planet Dewy 90CondensingGas88.0%
sime Planet Dewy 90 ACondensingGas89.9%
sime Planet Dewy 90 A (LPG)CondensingLPG90.9%
sime Planet Super 4 F.S.Non-CondensingGas80.5%
sime Planet Super 4 W.MNon-CondensingGas80.7%
sime Planet Super 4 W.M..Non-CondensingLPG82.6%
sime Rondo 3Non-CondensingOil83.4%
sime Rondo 4Non-CondensingOil83.6%
sime Rondo 5Non-CondensingOil83.8%
sime Rondo 6Non-CondensingOil83.9%
sime Rondo 7Non-CondensingOil84.1%
sime RX 37 CE ionoNon-CondensingGas78.9%
sime RX 48 CE ionoNon-CondensingGas79.9%
sime RX 55 CE ionoNon-CondensingGas79.9%
sime Super 105 MK IINon-CondensingGas78.6%
sime Super 90 MK IINon-CondensingLPG81.1%
sime Super 90 MK.IINon-CondensingGas79.3%
sime Superior 40 CiNon-CondensingGas79.0%
sime Superior 40 Ci EINon-CondensingGas79.0%
sime Superior 40 MK.IINon-CondensingGas76.1%
sime Superior 50 CiNon-CondensingGas79.9%
sime Superior 50 Ci EINon-CondensingGas79.9%
sime Superior 50 MK.IINon-CondensingGas76.3%
sime Superior 60 CiNon-CondensingGas79.4%
sime Superior 60 Ci EINon-CondensingGas79.4%
sime Superior 60 MK.IINon-CondensingGas75.7%
sime Superior 75 MK.IINon-CondensingGas76.5%
sime Superior 80 CiNon-CondensingGas78.6%
sime Superior 80 Ci EINon-CondensingGas78.6%
sime Superior 90 MK.IINon-CondensingGas76.8%
Solarcombi EC-Compact EC25 HCondensingGas89.5%
Solarcombi EC-Compact EC25 HSCondensingGas89.5%
Solarcombi EC-Compact EC25 SCondensingGas89.4%
Strebel SC 30 BCondensingGas89.4%
Strebel SC 30 CCondensingGas89.4%
Strebel SC 30 KCondensingGas89.3%
Termet Ecocondens Plus 25CondensingGas88.8%
Termet Ecocondens Plus 25 combiCondensingGas88.7%
Termet Ecocondens Plus 30CondensingGas88.7%
Termet Ecocondens Plus 30 combiCondensingGas88.6%
Termet Ecocondens Plus 50CondensingGas88.8%
Termet Windsor Plus 25CondensingGas88.8%
Termet Windsor Plus 25 combiCondensingGas88.7%
Termet Windsor Plus 30CondensingGas88.7%
Termet Windsor Plus 30 combiCondensingGas88.6%
Termet Windsor Plus 50CondensingGas88.8%
The White Boiler Company CSE30 (T)CondensingLPG89.9%
The White Boiler Company WH 80 (T)CondensingLPG89.5%
The White Boiler Company WH 90 (T)CondensingLPG89.7%
The White Boiler Company WH Regular 6-24 (T)CondensingGas89.0%
The White Boiler Company WH Regular 9-32 (T)CondensingGas89.0%
The White Boiler Company WH System 6-24 (T)CondensingGas89.0%
The White Boiler Company WH System 9-32 (T)CondensingGas89.0%
The White Boiler Company WH100 (T)CondensingLPG89.9%
The White Boiler Company WH130 (T)CondensingLPG89.9%
Thermeco 12-20 Slimline 12-20 BFILCCondensingOil90.6%
Thermeco BFEC 12/24CondensingOil90.4%
Thermeco BFESC 12/24CondensingOil90.4%
Thermeco BFIC 12/24CondensingOil90.4%
Thermeco BFISC 12/24CondensingOil90.4%
Thermeco BWEC 12/16CondensingOil88.9%
Thermeco BWESC 12/16CondensingOil88.9%
Thermeco BWIC 12/16CondensingOil88.9%
Thermeco BWISC 12/16CondensingOil88.9%
Thorn EMI Heating Apollo 15/30bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 15/30cNon-CondensingGas65.0%
Thorn EMI Heating Apollo 30/50bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 30/50sNon-CondensingGas72.0%
Thorn EMI Heating Apollo 30bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 30cNon-CondensingGas65.0%
Thorn EMI Heating Apollo 30sNon-CondensingGas72.0%
Thorn EMI Heating Apollo 30siNon-CondensingGas72.0%
Thorn EMI Heating Apollo 40bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 40cNon-CondensingGas65.0%
Thorn EMI Heating Apollo 40sNon-CondensingGas72.0%
Thorn EMI Heating Apollo 40siNon-CondensingGas72.0%
Thorn EMI Heating Apollo 50/65bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 50/65cNon-CondensingGas65.0%
Thorn EMI Heating Apollo 50/80bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 50/80cNon-CondensingGas65.0%
Thorn EMI Heating Apollo 50bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 50cNon-CondensingGas65.0%
Thorn EMI Heating Apollo 50sNon-CondensingGas72.0%
Thorn EMI Heating Apollo 50siNon-CondensingGas72.0%
Thorn EMI Heating Apollo 60bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 60cNon-CondensingGas65.0%
Thorn EMI Heating Apollo 60siNon-CondensingGas72.0%
Thorn EMI Heating Apollo 65/80bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 65/80cNon-CondensingGas65.0%
Thorn EMI Heating Apollo 80bNon-CondensingGas65.0%
Thorn EMI Heating Apollo 80cNon-CondensingGas65.0%
Thorn EMI Heating Apollo 80siNon-CondensingGas72.0%
Thorn EMI Heating Apollo Fanfare 15/30sNon-CondensingGas72.0%
Thorn EMI Heating Apollo Fanfare 15/30siNon-CondensingGas72.0%
Thorn EMI Heating Apollo Fanfare 30/50siNon-CondensingGas72.0%
Thorn EMI Heating Apollo Fanfare 40siNon-CondensingGas72.0%
Thorn EMI Heating Apollo Fanfare 50/65siNon-CondensingGas72.0%
Thorn EMI Heating Apollo Fanfare 65/80siNon-CondensingGas72.0%
Thorn EMI Heating Gemini wmNon-CondensingGas65.0%
Thorn EMI Heating Harcal 260Non-CondensingOil65.0%
Thorn EMI Heating Housewarmer 2 30/45deluxeNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 2 30/45eNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 2 30/45eplusNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 2 30/45sNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 2 30/45superNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45economyNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45elegantNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45epicNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45epictcNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45extratcNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45sableNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45snugNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45spectacularNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45superiorNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 30/45supremeNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer 45Non-CondensingGas65.0%
Thorn EMI Heating Housewarmer 55Non-CondensingGas65.0%
Thorn EMI Heating Housewarmer deluxeNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer eliteNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer emodelNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer Mk2 30/45extraNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer smodelNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer spectaculardeluxeNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer spectacularsNon-CondensingGas65.0%
Thorn EMI Heating Housewarmer superNon-CondensingGas65.0%
Thorn EMI Heating International 40deluxeNon-CondensingGas65.0%
Thorn EMI Heating International m42bfNon-CondensingGas55.0%
Thorn EMI Heating International m42cfNon-CondensingGas55.0%
Thorn EMI Heating International m54bfNon-CondensingGas55.0%
Thorn EMI Heating International m54cfNon-CondensingGas55.0%
Thorn EMI Heating Marathon 1000bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 1000cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 1500cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 30/42bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 30/42cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 400bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 400cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 44/54bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 44/54cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 500bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 500cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 56/76bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 56/76cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 600bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 600cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 700bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 700cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 80/100bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 80/100cNon-CondensingGas65.0%
Thorn EMI Heating Marathon 800bNon-CondensingGas65.0%
Thorn EMI Heating Marathon 800cNon-CondensingGas65.0%
Thorn EMI Heating Orion 30bNon-CondensingGas65.0%
Thorn EMI Heating Orion 40bNon-CondensingGas65.0%
Thorn EMI Heating Orion 50bNon-CondensingGas65.0%
Thorn EMI Heating Orion 60bNon-CondensingGas65.0%
Thorn EMI Heating Orion 75siNon-CondensingGas68.0%
Thorn EMI Heating Orion Fanfare 30siNon-CondensingGas68.0%
Thorn EMI Heating Orion Fanfare 40siNon-CondensingGas68.0%
Thorn EMI Heating Orion Fanfare 50siNon-CondensingGas68.0%
Thorn EMI Heating Orion Fanfare 60siNon-CondensingGas68.0%
Thorn EMI Heating Thorn Harcal 200Non-CondensingOil65.0%
Thorn EMI Heating Thorn Harcal HavanaNon-CondensingOil65.0%
Thorn EMI Heating Thorn Janitor ODY-3Non-CondensingOil65.0%
Thorn EMI Heating Thorn Janitor OV-45Non-CondensingOil65.0%
Trianco Centrajet 13/17 WMNon-CondensingOil70.0%
Trianco Centrajet 18/28Non-CondensingOil65.0%
Trianco Centramatic 40Non-CondensingOil65.0%
Trianco Centramatic 55Non-CondensingOil65.0%
Trianco Centramatic 80Non-CondensingOil65.0%
Trianco Centramatic MNon-CondensingOil65.0%
Trianco Combipac HE 26CondensingOil90.2%
Trianco Contractor 100/125Non-CondensingOil85.6%
Trianco Contractor 100/125 ExternalNon-CondensingOil84.6%
Trianco Contractor 100/125 External HECondensingOil87.4%
Trianco Contractor 110 HE EXT CombiCondensingOil87.5%
Trianco Contractor 50/70 WMNon-CondensingOil84.5%
Trianco Contractor 50/70 WM HECondensingOil88.8%
Trianco Contractor 50/70 WM HE EXTCondensingOil88.8%
Trianco Contractor 50/90Non-CondensingOil85.5%
Trianco Contractor Combi 110Non-CondensingOil83.8%
Trianco Contractor Combi 110 ExternalNon-CondensingOil83.8%
Trianco Contractor Combi 110 HECondensingOil87.5%
Trianco Contractor HE 50/90CondensingOil88.0%
Trianco Contractor HE External 50/90CondensingOil87.8%
Trianco Contractor HE System 50/90CondensingOil88.0%
Trianco Contractor Trader HE 50/90CondensingOil88.0%
Trianco Contractor Utility 100/125Non-CondensingOil84.6%
Trianco Contractor Utility 130/180Non-CondensingOil85.4%
Trianco Contractor Utility 190/220Non-CondensingOil85.2%
Trianco Contractor Utility HE 100/125CondensingOil87.6%
Trianco Contractor Utility HE 130/180CondensingOil88.3%
Trianco Contractor Utility HE 190/220CondensingOil87.3%
Trianco Eurostar 100/125Non-CondensingOil85.6%
Trianco Eurostar 130/150Non-CondensingOil81.7%
Trianco Eurostar 160/180Non-CondensingOil85.2%
Trianco Eurostar 190/240Non-CondensingOil85.1%
Trianco Eurostar 2000 50/65Non-CondensingOil84.9%
Trianco Eurostar 2000 70/90Non-CondensingOil85.4%
Trianco Eurostar 50/65Non-CondensingGas76.5%
Trianco Eurostar 50/65 I.T.W.Non-CondensingOil85.4%
Trianco Eurostar 50/65 SystemNon-CondensingOil81.1%
Trianco Eurostar 50/70 W.MNon-CondensingOil83.4%
Trianco Eurostar 65 CombiNon-CondensingOil79.4%
Trianco Eurostar 70/90Non-CondensingOil85.4%
Trianco Eurostar 70/90 SystemNon-CondensingOil85.4%
Trianco Eurostar 70/90 UtilityNon-CondensingOil85.4%
Trianco Eurostar 90 CombiNon-CondensingOil83.7%
Trianco Eurostar Combi 50Non-CondensingOil83.2%
Trianco Eurostar Combi 65Non-CondensingOil83.2%
Trianco Eurostar Combi 90Non-CondensingOil83.7%
Trianco Eurostar External 50/90Non-CondensingOil85.4%
Trianco Eurostar External 65 wmNon-CondensingOil85.5%
Trianco Eurostar External 95/115Non-CondensingOil84.5%
Trianco Eurostar Internal 50/70 wmNon-CondensingOil84.5%
Trianco Eurostar Premier 50/90 50/90 Condensing BoilerCondensingOil90.8%
Trianco Eurostar Premier 50/90 Condensing System BoilerCondensingOil90.8%
Trianco Eurostar Premier External 100/125CondensingOil90.2%
Trianco Eurostar Premier External 50/90CondensingOil90.8%
Trianco Eurostar Premier Kitchen 100/125CondensingOil90.2%
Trianco Eurostar Utility 100/125Non-CondensingOil85.6%
Trianco Eurostar Utility 130/150Non-CondensingOil84.5%
Trianco Eurostar Utility 160/180Non-CondensingOil85.2%
Trianco Eurostar Utility 190/240Non-CondensingOil85.2%
Trianco Eurostar Utility 50/65 13961/1Non-CondensingOil81.1%
Trianco Eurostar Utility 50/65 C16496/1Non-CondensingOil84.9%
Trianco Eurostar Utility 70/90Non-CondensingOil85.4%
Trianco Eurostar Utility System 50/90Non-CondensingOil85.4%
Trianco Eurotrader 100/125Non-CondensingOil85.6%
Trianco Eurotrader 50/90Non-CondensingOil85.4%
Trianco Eurotrader Premier 100/125CondensingOil90.2%
Trianco Eurotrader Premier 50/90CondensingOil90.8%
Trianco EVOLUTION 20 INC DHW ACCUCondensingOil89.9%
Trianco Heatpac Condensing Boiler 12-20kWCondensingOil92.2%
Trianco Heatpac Condensing Boiler 20/26kWCondensingOil92.2%
Trianco Iona 100/125Non-CondensingOil85.6%
Trianco Iona 100/125 HECondensingOil87.4%
Trianco Iona 110 HE CombiCondensingOil87.5%
Trianco Iona 110 HE External CombiCondensingOil87.5%
Trianco Iona 50/70 wmNon-CondensingOil84.5%
Trianco Iona 50/70 WM HECondensingOil88.8%
Trianco Iona 50/70 WM HE ExternalCondensingOil88.8%
Trianco Iona 50/90Non-CondensingOil85.4%
Trianco Iona Combi 110Non-CondensingOil83.8%
Trianco Iona Combi 110 ExternalNon-CondensingOil83.8%
Trianco Iona External 100/125 HECondensingOil87.4%
Trianco Iona HE 130/180CondensingOil88.3%
Trianco Iona HE 190/220CondensingOil87.3%
Trianco Iona HE 50/90CondensingOil88.0%
Trianco Kitchen Condensing Boiler 12-18kWCondensingOil92.1%
Trianco Kitchen Condensing Boiler 12-20kWCondensingOil92.2%
Trianco Kitchen Condensing Boiler 20-26kWCondensingOil92.2%
Trianco Slimline Combi 20CondensingOil90.5%
Trianco Slimline Combi 26CondensingOil90.5%
Trianco Trianco fireliteNon-CondensingGas65.0%
Trianco Triancogas 25/40Non-CondensingGas65.0%
Trianco Triancogas 35/50Non-CondensingGas65.0%
Trianco Tristar 35fNon-CondensingGas72.0%
Trianco Tristar 45fNon-CondensingGas72.0%
Trianco Tristar 52fNon-CondensingGas72.0%
Trianco Tristar 60fNon-CondensingGas72.0%
Trianco Tristar 80fNon-CondensingGas72.0%
Trianco Tristar Optima Combi 28 CBCondensingGas88.5%
Trianco Tristar Optima Combi 28CB LPGCondensingLPG89.5%
Trianco Tristar Optima Junior K Combi 24 CBCondensingGas88.7%
Trianco Tristar Optima Junior K System 24 SBCondensingGas88.8%
Trianco Tristar Optima System 28 SBCondensingGas88.6%
Trianco Tristar Optima System 28 SB LPGCondensingLPG89.6%
Trianco TRO 110 Combi FS C.F.Non-CondensingOil70.0%
Trianco TRO 12/14 BF Room SealedNon-CondensingOil70.0%
Trianco TRO 12/14 Mk3 CFNon-CondensingOil70.0%
Trianco TRO 15/19 BF Room SealedNon-CondensingOil70.0%
Trianco TRO 15/19 Mk3 CFNon-CondensingOil70.0%
Trianco TRO 20/25 Mk3 CFNon-CondensingOil70.0%
Trianco TRO 28/32 BF Room SealedNon-CondensingOil70.0%
Trianco TRO 28/32 Mk3 CFNon-CondensingOil70.0%
Trianco TRO 37/45 Mk3 CFNon-CondensingOil70.0%
Trianco TRO 80 Combi WM C.F.Non-CondensingOil70.0%
Trianco TRO EVOLUTION 20 BHCondensingOil92.0%
Trianco TRO EVOLUTION 20 HEAT ONLY OUTDOORCondensingOil92.0%
Trianco TRO EVOLUTION 20 SYSTEMCondensingOil92.1%
Trianco TRO EVOLUTION 30 BHCondensingOil92.0%
Trianco TRO EVOLUTION 30 COMBICondensingOil90.3%
Trianco TRO EVOLUTION 30 COMBI OUTDOORCondensingOil90.3%
Trianco TRO EVOLUTION 30 HEAT ONLY OUTDOORCondensingOil92.0%
Trianco TRO EVOLUTION 30 INC DHW ACCUCondensingOil90.5%
Trianco TRO EVOLUTION 30 SYSTEMCondensingOil92.0%
Trianco TRO EVOLUTION 40 COMBICondensingOil90.4%
Trianco TRO EVOLUTION 40 COMBI OUTDOORCondensingOil90.4%
Trianco TRO EVOLUTION 40 HEAT ONLY OUTDOORCondensingOil92.1%
Trianco TRO EVOLUTION 40 INC DHW ACCUCondensingOil91.6%
Trianco TRO EVOLUTION 40 SYSTEMCondensingOil92.1%
Trianco TSB 12/14 BF Sealed SystemNon-CondensingOil70.0%
Trianco TSB 15/19 BF Sealed SystemNon-CondensingOil70.0%
Trianco TSB 20/25 BF Sealed SystemNon-CondensingOil70.0%
Trianco TSO 15/17Non-CondensingOil65.0%
Trianco TSO 65/85Non-CondensingOil65.0%
Trianco TSO 95/110Non-CondensingOil65.0%
Trianco TSV 45Non-CondensingOil65.0%
Trianco TSV 60Non-CondensingOil65.0%
Trianco TSV 80Non-CondensingOil65.0%
Trianco Valor Homeflame SuperNon-CondensingGas65.0%
Trianco Valor MajesticNon-CondensingGas65.0%
Trianco Wm 20/30rsNon-CondensingGas65.0%
Trianco Wm 20/35fNon-CondensingGas72.0%
Trianco Wm 25/45rsNon-CondensingGas65.0%
Trianco Wm 30/40rsNon-CondensingGas65.0%
Trianco Wm 30/50fNon-CondensingGas72.0%
Trianco Wm 35/50fNon-CondensingGas72.0%
Trianco Wm 40/50rsNon-CondensingGas65.0%
Trianco Wm 45/60rsNon-CondensingGas65.0%
Trianco Wm 50/60rsNon-CondensingGas65.0%
Trianco Wm 50/65fNon-CondensingGas72.0%
Trianco Wm 60/75rsNon-CondensingGas65.0%
Trianco Wm 65/80fNon-CondensingGas72.0%
Trisave Fs 18-24CondensingGas83.0%
Trisave Fs 43435CondensingGas83.0%
Trisave Fs 60CondensingGas83.0%
Trisave Fs 80CondensingGas83.0%
Trisave Turbo 22CondensingGas83.0%
Trisave Turbo 30CondensingGas83.0%
Trisave Turbo 45CondensingGas83.0%
Trisave Turbo 60CondensingGas83.0%
Turco Ambassador 15/21 KitchenCondensingOil92.0%
Turco Ambassador 21/27 KitchenCondensingOil91.6%
Turco Ambassador 27/38 KitchenCondensingOil91.6%
Turco Consul 15/21 BoilerhouseCondensingOil92.0%
Turco Countryman 15/21 Outdoor CombiCondensingOil90.3%
Turco Countryman 15/21 Slimline OutdoorCondensingOil92.0%
Turco Countryman 21/27 Outdoor CombiCondensingOil89.9%
Turco Countryman 21/27 Slimline OutdoorCondensingOil91.6%
Turco Countryman 27/38 Outdoor CombiCondensingOil89.9%
Turco Countryman 27/38 Slimline OutdoorCondensingOil91.6%
Turco Senator 15/21 CombiCondensingOil90.3%
Turco Senator 21/27 CombiCondensingOil89.9%
Turco Senator 27/38 CombiCondensingOil89.9%
Turkington Engineering Eurocal Boiler House 115/140/2Non-CondensingOil85.6%
Turkington Engineering Eurocal Boiler House 140/170/2Non-CondensingOil85.6%
Turkington Engineering Eurocal Boiler House 50/70/2Non-CondensingOil85.6%
Turkington Engineering Eurocal Boiler House 70/90Non-CondensingOil85.6%
Turkington Engineering Eurocal Boiler House 90/115/2Non-CondensingOil85.6%
Turkington Engineering Eurocal Outdoor 50/70Non-CondensingOil85.6%
Turkington Engineering Eurocal Outdoor 70/90Non-CondensingOil85.6%
Turkington Engineering Eurocal Outdoor 90/115Non-CondensingOil85.6%
Turkington Engineering Eurocal Outdoor Combi 50/70Non-CondensingOil83.9%
Turkington Engineering Eurocal Outdoor Combi 70/90Non-CondensingOil83.9%
Turkington Engineering Eurocal Outdoor Combi 90/115Non-CondensingOil83.9%
Turkington Engineering Eurocal Outdoor System 50/70Non-CondensingOil85.6%
Turkington Engineering Eurocal Outdoor System 70/90Non-CondensingOil85.6%
Turkington Engineering Eurocal Outdoor System 90/115Non-CondensingOil85.6%
Turkington Engineering Eurocal White Cased Combi 50/70Non-CondensingOil83.9%
Turkington Engineering Eurocal white Cased Combi 70/90Non-CondensingOil83.9%
Turkington Engineering Eurocal White Cased Combi 90/115Non-CondensingOil83.9%
Turkington Engineering Eurocal White Cased Kitchen 115/140Non-CondensingOil85.6%
Turkington Engineering Eurocal White Cased Kitchen 140/170Non-CondensingOil85.6%
Turkington Engineering Eurocal White Cased Kitchen 50/70Non-CondensingOil85.6%
Turkington Engineering Eurocal White Cased Kitchen 70/90Non-CondensingOil85.6%
Turkington Engineering Eurocal White Cased Kitchen 90/115Non-CondensingOil85.6%
Turkington Engineering Eurocal White Cased System 50/70Non-CondensingOil85.6%
Turkington Engineering Eurocal White Cased System 70/90Non-CondensingOil85.6%
Turkington Engineering Eurocal White Cased System 90/115Non-CondensingOil85.6%
Turkington Engineering Eurocal White Cased Utility 50/70Non-CondensingOil85.3%
Turkington Engineering Eurocal White Cased Utility 70/90Non-CondensingOil85.3%
Turkington Engineering Turco 2000 Boiler House 115/140Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Boiler House 140/170Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Boiler House 50/70Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Boiler House 70/90Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Boiler House 90/115Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Outdoor 50/70Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Outdoor 70/90Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Outdoor 90/115Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Outdoor Combi 50/70Non-CondensingOil83.9%
Turkington Engineering Turco 2000 Outdoor Combi 70/90Non-CondensingOil83.9%
Turkington Engineering Turco 2000 Outdoor Combi 90/115Non-CondensingOil83.9%
Turkington Engineering Turco 2000 Outdoor System 50/70Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Outdoor System 70/90Non-CondensingOil85.6%
Turkington Engineering Turco 2000 Outdoor System 90/115Non-CondensingOil85.6%
Turkington Engineering Turco 2000 White Cased 115/140Non-CondensingOil85.6%
Turkington Engineering Turco 2000 White Cased 140/170Non-CondensingOil85.6%
Turkington Engineering Turco 2000 White Cased 50/70Non-CondensingOil85.6%
Turkington Engineering Turco 2000 White Cased 70/90Non-CondensingOil85.6%
Turkington Engineering Turco 2000 White Cased 90/115Non-CondensingOil85.6%
Turkington Engineering Turco 2000 White Cased Combi 70/90Non-CondensingOil83.9%
Turkington Engineering Turco 2000 White Cased System 70/90Non-CondensingOil85.6%
Turkington Engineering Turco 2000 White Combi 50/70Non-CondensingOil83.9%
Turkington Engineering Turco 2000 White Combi 90/115Non-CondensingOil83.9%
Turkington Engineering Turco 2000 White System 50/70Non-CondensingOil85.6%
Turkington Engineering Turco 2000 White System 90/115Non-CondensingOil85.6%
Turkington Engineering Turco Trojan 50/90Non-CondensingOil85.3%
Turkington Engineering Turco Trojan Boiler House 50/70Non-CondensingOil85.3%
Turkington Engineering Turco Trojan Boiler House 50/90Non-CondensingOil85.3%
Turkington Engineering Turco Trojan Outdoor 50/90Non-CondensingOil85.3%
Turkington Engineering Turco Trojan White Cased 50/90Non-CondensingOil85.3%
Unical Alkon 28 SC HECondensingGas88.5%
Unical Alkon 28 SR HECondensingGas88.6%
Unical Alkon 35 SC HECondensingGas88.5%
Unical Alkon 35 SR HECondensingGas88.6%
Unical Alkon C 18 HECondensingGas88.3%
Unical Alkon C 24 HECondensingGas88.4%
Unical Alkon C 28 HECondensingGas89.3%
Unical Alkon C 35 HECondensingGas89.4%
Unical Alkon R 18 HECondensingGas88.4%
Unical Alkon R 24 HECondensingGas88.5%
Unical Alkon R 28 HECondensingGas89.4%
Unical Alkon R 35 HECondensingGas89.5%
Unical Alkon Slim 28 HECondensingGas88.8%
Unical Alkon Slim 35 HECondensingGas88.7%
Unical KON C 28 HECondensingGas89.1%
Unical KON C HE Combi BoilerCondensingGas89.0%
Unical KON R 28 HECondensingGas89.2%
Unical KON R HECondensingGas89.1%
Vaillant AquaplusNon-CondensingGas79.8%
Vaillant Combicompact vcw221hNon-CondensingGas65.0%
Vaillant Combicompact vcw240hNon-CondensingGas65.0%
Vaillant Combicompact vcw242ehNon-CondensingGas70.0%
Vaillant Combicompact vcw280hNon-CondensingGas65.0%
Vaillant Combicompact vcw282ehNon-CondensingGas70.0%
Vaillant ecoFIT pure 412 VU 126/6-3 OV (H-GB)CondensingGas89.8%
Vaillant ecoFIT pure 415 VU 156/6-3 OV (H-GB)CondensingGas89.8%
Vaillant ecoFIT pure 418 VU 186/6-3 OV (H-GB)CondensingGas89.7%
Vaillant ecoFIT pure 425 VU 256/6-3 OV (H-GB)CondensingGas89.7%
Vaillant ecoFIT pure 430 VU 306/6-3 OV (H-GB)CondensingGas89.8%
Vaillant ecoFIT pure 612 VU 126/6-3 (H-GB)CondensingGas89.8%
Vaillant ecoFIT pure 615 VU 156/6-3 (H-GB)CondensingGas89.8%
Vaillant ecoFIT pure 618 VU 186/6-3 (H-GB)CondensingGas89.7%
Vaillant ecoFIT pure 625 VU 256/6-3 (H-GB)CondensingGas89.7%
Vaillant ecoFIT pure 630 VU 306/6-3 (H-GB)CondensingGas89.9%
Vaillant ecoFIT pure 825 VUW 256/6-3 (H-GB)CondensingGas89.6%
Vaillant ecoFIT pure 830 VUW 306/6-3 (H-GB)CondensingGas89.6%
Vaillant ecoFIT pure 835 VUW 356/6-3 (H-GB)CondensingGas89.7%
Vaillant ecoFIT sustain 825 VUW 256/6-3 (H-GB)CondensingGas89.3%
Vaillant ecoFIT sustain 830 VUW 306/6-3 (H-GB)CondensingGas89.3%
Vaillant ecoFIT sustain 835 VUW 356/6-3 (H-GB)CondensingGas89.3%
Vaillant Ecomax 613/2ECondensingGas88.9%
Vaillant Ecomax 613ECondensingGas88.7%
Vaillant Ecomax 618/2ECondensingGas89.0%
Vaillant Ecomax 618ECondensingGas88.7%
Vaillant Ecomax 622/2ECondensingGas88.9%
Vaillant Ecomax 622ECondensingGas88.7%
Vaillant Ecomax 635 ECondensingLPG90.2%
Vaillant Ecomax 635ECondensingGas89.2%
Vaillant Ecomax 824 ECondensingGas87.4%
Vaillant Ecomax 824/1ECondensingGas88.6%
Vaillant Ecomax 824/2ECondensingGas88.9%
Vaillant Ecomax 828 ECondensingGas87.6%
Vaillant Ecomax 828/1ECondensingGas88.6%
Vaillant Ecomax 828/2ECondensingGas88.8%
Vaillant Ecomax 835/2 ECondensingLPG90.1%
Vaillant Ecomax 835/2ECondensingGas89.1%
Vaillant Ecomax pro 18 ECondensingGas88.6%
Vaillant Ecomax pro 28 ECondensingGas88.7%
Vaillant Ecomax VU 186 EHCondensingGas87.7%
Vaillant Ecomax VU 226 EHCondensingGas87.7%
Vaillant ecoTEC exclusive 627 VU 256/5-7 (H-GB)CondensingGas89.6%
Vaillant ecoTEC exclusive 832CondensingGas88.8%
Vaillant ecoTEC exclusive 835 VUW 356/5-7 (H-GB)CondensingGas89.7%
Vaillant ecoTEC exclusive 838CondensingGas88.8%
Vaillant ecoTEC exclusive 843 VUW 436/5-7 (H-GB)CondensingGas89.6%
Vaillant ecoTEC plus 412CondensingGas89.3%
Vaillant Ecotec plus 415CondensingGas88.7%
Vaillant ecoTEC plus 415 VU 156/6-5CondensingGas89.3%
Vaillant Ecotec plus 418CondensingGas88.9%
Vaillant ecoTEC plus 418 VU 186/6-5CondensingGas89.3%
Vaillant ecoTEC plus 424CondensingGas89.3%
Vaillant Ecotec plus 428CondensingLPG90.7%
Vaillant ecoTEC plus 430CondensingGas89.2%
Vaillant Ecotec plus 438CondensingLPG90.2%
Vaillant Ecotec Plus 612CondensingGas89.0%
Vaillant ecoTEC plus 612 H system A VU GB 126/5-5 ACondensingGas89.0%
Vaillant ecoTEC plus 612 VU GB 126/5-5CondensingGas89.0%
Vaillant Ecotec Plus 615CondensingGas89.0%
Vaillant ecoTEC plus 615 H system A VU GB 156/5-5 ACondensingGas89.1%
Vaillant ecoTEC plus 615 VU GB 156/5-5CondensingGas89.1%
Vaillant Ecotec Plus 618CondensingGas89.0%
Vaillant ecoTEC plus 618 H system A VU GB 186/5-5 ACondensingGas89.3%
Vaillant Ecotec Plus 618 LPGCondensingLPG90.0%
Vaillant ecoTEC plus 618 LPG system A VU GB 186/5-5 A R4CondensingLPG89.1%
Vaillant ecoTEC plus 618 VU GB 186/5-5CondensingGas89.3%
Vaillant Ecotec Plus 624CondensingGas88.9%
Vaillant ecoTEC plus 624 H system A VU GB 246/5-5 ACondensingGas89.4%
Vaillant ecoTEC plus 624 H system A VU GB 246/5-5 A R4CondensingLPG89.9%
Vaillant ecoTEC plus 624 VU GB 246/5-5CondensingGas89.4%
Vaillant Ecotec Plus 630CondensingGas89.0%
Vaillant ecoTEC plus 630 H system A VU GB 306/5-5 ACondensingGas89.4%
Vaillant Ecotec Plus 630 LPGCondensingLPG90.0%
Vaillant ecoTEC plus 630 LPG system A VU GB 306/5-5 A R4CondensingLPG89.1%
Vaillant ecoTEC plus 630 VU GB 306/5-5CondensingGas89.4%
Vaillant ecoTEC plus 637CondensingGas88.9%
Vaillant ecoTEC plus 637 H system A VU GB 376/5-5 ACondensingGas89.2%
Vaillant ecoTEC plus 637 H system A VU GB 376/5-5 A R4CondensingLPG90.5%
Vaillant ecoTEC plus 637 VU GB 376/5-5CondensingGas89.2%
Vaillant Ecotec Plus 824CondensingGas88.9%
Vaillant ecoTEC plus 824 VUW GB 246/5-5CondensingGas89.1%
Vaillant ecoTEC plus 825 H combi A VUW GB 256/5-5CondensingGas89.1%
Vaillant ecoTEC plus 825 H combi A VUW GB 256/5-5 R4CondensingLPG90.1%
Vaillant Ecotec Plus 831CondensingGas88.9%
Vaillant Ecotec Plus 831 LPGCondensingLPG89.9%
Vaillant ecoTEC plus 831 VUW GB 316/5-5CondensingGas89.3%
Vaillant ecoTEC plus 832 H combi A VUW GB 326/5-5CondensingGas89.3%
Vaillant ecoTEC plus 832 LPG combi A VUW GB 326/5-5 R4CondensingLPG88.9%
Vaillant ecoTEC plus 835 H combi A VUW GB 356/5-5CondensingGas89.3%
Vaillant ecoTEC plus 835 H combi A VUW GB 356/5-5 R4CondensingLPG90.1%
Vaillant ecoTEC plus 837CondensingGas88.8%
Vaillant ecoTEC plus 837 VUW GB 376/5-5CondensingGas89.3%
Vaillant ecoTEC plus 838 H combi A VUW GB 386/5-5CondensingGas89.3%
Vaillant ecoTEC plus 838 H combi A VUW GB 386/5-5 A R4CondensingLPG90.2%
Vaillant ecoTEC plus 937CondensingLPG90.2%
Vaillant ecoTEC plus 937 VUI GB 376/5-5CondensingGas89.3%
Vaillant ecoTEC plus 938 H combi A VUI GB 386/5-5 ACondensingGas89.3%
Vaillant ecoTEC plus 938 H combi A VUI GB 386/5-5 A R4CondensingLPG89.8%
Vaillant ecoTEC pro 24CondensingLPG89.9%
Vaillant ecoTEC pro 24 H combi A VUW 246/5-3 ACondensingGas89.1%
Vaillant ecoTEC pro 24 H combi A VUW GB 246/5-3 A R4CondensingLPG89.7%
Vaillant ecoTEC pro 24 VUW GB 246/5-3CondensingGas89.1%
Vaillant Ecotec Pro 28CondensingGas88.8%
Vaillant ecoTEC pro 28 H combi A VUW GB 286/5-3 ACondensingGas89.1%
Vaillant ecoTEC pro 28 LPG combi A VUW GB 286/5-3 A R4CondensingLPG88.8%
Vaillant ecoTEC pro 28 VUW GB 286/5-3CondensingGas89.3%
Vaillant ecoTEC pro 30 H combi A VUW GB 306/5-3CondensingGas89.3%
Vaillant ecoTEC pro 30 H combi A VUW GB 306/5-3 R4CondensingLPG90.1%
Vaillant ecoTEC sustain 24 VUW 246/7-2 (H-GB)CondensingGas89.2%
Vaillant ecoTEC sustain 28 VUW 286/7-2 (H-GB)CondensingGas89.1%
Vaillant ecoTEC sustain 34 VUW 346/7-2 (H-GB)CondensingGas89.2%
Vaillant ecoTEC VU GB 466/4-5CondensingGas89.1%
Vaillant ecoTEC VU GB 656/4-5-HCondensingGas88.7%
Vaillant Home Combi 25CondensingGas89.3%
Vaillant Home Combi 30CondensingGas89.3%
Vaillant Home Combi 35CondensingGas89.3%
Vaillant Home Regular 12CondensingGas89.3%
Vaillant Home Regular 15CondensingGas89.3%
Vaillant Home Regular 18CondensingGas89.3%
Vaillant Home Regular 25CondensingGas89.3%
Vaillant Home Regular 30CondensingGas89.2%
Vaillant Home System 12CondensingGas89.3%
Vaillant Home System 15CondensingGas89.3%
Vaillant Home System 18CondensingGas89.3%
Vaillant Home System 25CondensingGas89.3%
Vaillant T3Wcombi vcw20/1t3wNon-CondensingGas65.0%
Vaillant T3Wcombi vcw25/1t3wNon-CondensingGas65.0%
Vaillant T3Wcombi vcwsine18t3wNon-CondensingGas65.0%
Vaillant Thermocompact 615ENon-CondensingGas79.0%
Vaillant Thermocompact 620ENon-CondensingGas79.7%
Vaillant Thermocompact 624 ENon-CondensingLPG81.5%
Vaillant Thermocompact 624ENon-CondensingGas79.7%
Vaillant Thermocompact 628ENon-CondensingGas79.8%
Vaillant Thermocompact 637 ENon-CondensingGas79.9%
Vaillant Thermocompact vc110hNon-CondensingGas65.0%
Vaillant Thermocompact vc180hNon-CondensingGas65.0%
Vaillant Thermocompact vc182ehNon-CondensingGas72.0%
Vaillant Thermocompact vc221hNon-CondensingGas65.0%
Vaillant Thermocompact vc240hNon-CondensingGas65.0%
Vaillant Thermocompact vc242ehNon-CondensingGas72.0%
Vaillant Thermocompact vc282ehNon-CondensingGas72.0%
Vaillant Thermocompact VU 142 EHNon-CondensingGas75.8%
Vaillant Thermocompact VU 182 EHNon-CondensingGas78.1%
Vaillant Thermocompact VU 242 EHNon-CondensingGas78.6%
Vaillant Thermocompact VU 282 EHNon-CondensingGas78.8%
Vaillant Turbomax Plus 28ENon-CondensingLPG81.5%
Vaillant Turbomax Plus 824ENon-CondensingGas79.6%
Vaillant Turbomax Plus 828ENon-CondensingGas79.7%
Vaillant Turbomax Plus 837 ENon-CondensingGas79.8%
Vaillant Turbomax Pro 24ENon-CondensingGas79.6%
Vaillant Turbomax Pro 28ENon-CondensingGas79.7%
Vaillant Turbomax VUW 242 EHNon-CondensingGas78.5%
Vaillant Turbomax VUW 282 EHNon-CondensingGas78.7%
Vaillant Vkboiler vk35Non-CondensingGas65.0%
Vaillant Vkboiler vk41Non-CondensingGas65.0%
Vaillant Vkboiler vk48Non-CondensingGas65.0%
Vaillant Vkboiler vk58Non-CondensingGas65.0%
Viadrus K4 K4G1H24PBCondensingLPG89.0%
Viadrus K4 K4G1H24PRCondensingLPG89.0%
Viadrus K4 K4G1H24PSCondensingLPG89.0%
Viadrus K4 K4G1H24PWCondensingLPG89.0%
Viadrus K4 K4G1H24ZBCondensingGas88.1%
Viadrus K4 K4G1H24ZRCondensingGas88.1%
Viadrus K4 K4G1H24ZSCondensingGas88.1%
Viadrus K4 K4G1H24ZWCondensingGas88.1%
Viadrus K4 K4G2H24PBCondensingLPG88.9%
Viadrus K4 K4G2H24PRCondensingLPG88.9%
Viadrus K4 K4G2H24PSCondensingLPG88.9%
Viadrus K4 K4G2H24PWCondensingLPG88.9%
Viadrus K4 K4G2H24ZBCondensingGas88.0%
Viadrus K4 K4G2H24ZRCondensingGas88.0%
Viadrus K4 K4G2H24ZSCondensingGas88.0%
Viadrus K4 K4G2H24ZWCondensingGas88.0%
Viadrus K4 K4G3H24PBCondensingLPG89.0%
Viadrus K4 K4G3H24PRCondensingLPG89.0%
Viadrus K4 K4G3H24PSCondensingLPG89.0%
Viadrus K4 K4G3H24PWCondensingLPG89.0%
Viadrus K4 K4G3H24ZBCondensingGas88.1%
Viadrus K4 K4G3H24ZRCondensingGas88.1%
Viadrus K4 K4G3H24ZSCondensingGas88.1%
Viadrus K4 K4G3H24ZWCondensingGas88.1%
Viessmann Vitodens 050-W BPJC 29kW Combi BoilerCondensingGas89.0%
Viessmann Vitodens 050-W BPJC 35kW Combi BoilerCondensingGas89.0%
Viessmann Vitodens 050-W BPJD 29kW Combi BoilerCondensingGas89.0%
Viessmann Vitodens 050-W BPJD 35kW Combi BoilerCondensingGas89.0%
Viessmann Vitodens 100 Combi WB1A – 30kWCondensingGas89.2%
Viessmann Vitodens 100 Combi WB1A 24kwCondensingGas89.0%
Viessmann Vitodens 100 Compact WB1A 8-18kWCondensingGas89.1%
Viessmann Vitodens 100 Compact WB1A 8-24kWCondensingGas89.2%
Viessmann Vitodens 100 W WB1B 13kW Regular Boiler open ventCondensingLPG90.1%
Viessmann Vitodens 100 W WB1B 16kW Regular Boiler open ventCondensingLPG90.1%
Viessmann Vitodens 100 W WB1B 19kW Regular Boiler open ventCondensingLPG90.1%
Viessmann Vitodens 100 W WB1B 26kW Combi BoilerCondensingGas89.0%
Viessmann Vitodens 100 W WB1B 26kW Regular Boiler open ventCondensingLPG90.3%
Viessmann Vitodens 100 W WB1B 26kW System BoilerCondensingGas88.6%
Viessmann Vitodens 100 W WB1B 30 kW Combi BoilerCondensingLPG90.3%
Viessmann Vitodens 100 W WB1B 30kW Combi BoilerCondensingGas89.3%
Viessmann Vitodens 100 W WB1B 30kW System BoilerCondensingGas89.4%
Viessmann Vitodens 100 W WB1B 35kW Combi BoilerCondensingGas89.3%
Viessmann Vitodens 100 W WB1B 35kW System BoilerCondensingGas89.5%
Viessmann Vitodens 100 WB10CondensingGas89.5%
Viessmann Vitodens 100 WB14CondensingGas89.4%
Viessmann Vitodens 100 WB1A – 24kWCondensingGas89.1%
Viessmann Vitodens 100-W B1HA-19CondensingGas89.2%
Viessmann Vitodens 100-W B1HA-26CondensingGas89.2%
Viessmann Vitodens 100-W B1HA-30CondensingGas89.0%
Viessmann Vitodens 100-W B1HA-35CondensingGas89.2%
Viessmann Vitodens 100-W B1HC-19CondensingGas89.0%
Viessmann Vitodens 100-W B1HC-26CondensingGas88.8%
Viessmann Vitodens 100-W B1HC-30CondensingGas89.2%
Viessmann Vitodens 100-W B1HC-35CondensingGas89.2%
Viessmann Vitodens 100-W B1KA-26CondensingGas89.1%
Viessmann Vitodens 100-W B1KA-30CondensingGas88.9%
Viessmann Vitodens 100-W B1KA-35CondensingGas89.1%
Viessmann Vitodens 100-W B1KC-26CondensingGas88.7%
Viessmann Vitodens 100-W B1KC-30CondensingGas89.1%
Viessmann Vitodens 100-W B1KC-35CondensingGas89.1%
Viessmann Vitodens 100-W BPJA 21kW P25CondensingGas89.1%
Viessmann Vitodens 100-W BPJA 25 kW P29CondensingLPG90.1%
Viessmann Vitodens 100-W BPJA 25kW P29CondensingGas89.1%
Viessmann Vitodens 100-w wb1a 13kWCondensingGas89.4%
Viessmann Vitodens 100-W WB1B 35kW Regular Boiler Open VentCondensingLPG89.7%
Viessmann Vitodens 100-W WB1C 19kW System BoilerCondensingLPG90.2%
Viessmann Vitodens 100-W WB1C 26kW Combi BoilerCondensingLPG90.1%
Viessmann Vitodens 100-W WB1C 26kW System BoilerCondensingLPG90.2%
Viessmann Vitodens 100-W WB1C 30kW Combi BoilerCondensingLPG89.9%
Viessmann Vitodens 100-W WB1C 30kW System BoilerCondensingLPG90.0%
Viessmann Vitodens 100-W WB1C 35kW CombiCondensingGas89.3%
Viessmann Vitodens 100-W WB1C 35kW Combi BoilerCondensingLPG90.3%
Viessmann Vitodens 100-W WB1C 35kW System BoilerCondensingLPG90.4%
Viessmann Vitodens 100W WB1B 35kW Regular Boiler Open VentCondensingGas88.7%
Viessmann Vitodens 111-W B1LA 26kWCondensingLPG90.5%
Viessmann Vitodens 111-W B1LA 35kWCondensingLPG90.7%
Viessmann Vitodens 200 Combi WB2-24kWCondensingGas89.3%
Viessmann Vitodens 200 Combi WB2ACondensingGas89.1%
Viessmann Vitodens 200 WB2-11kWCondensingGas89.1%
Viessmann Vitodens 200 WB2-24kWCondensingGas89.4%
Viessmann Vitodens 200 WB2-32kWCondensingGas89.4%
Viessmann Vitodens 200 WB2-44kWCondensingGas89.2%
Viessmann Vitodens 200 WB2-66kWCondensingGas89.2%
Viessmann Vitodens 200 WB2ACondensingGas89.2%
Viessmann Vitodens 200-W B2HA-19CondensingGas89.1%
Viessmann Vitodens 200-W B2HA-26CondensingGas89.1%
Viessmann Vitodens 200-W B2HA-30CondensingGas89.1%
Viessmann Vitodens 200-W B2HA-35CondensingGas89.2%
Viessmann VITODENS 200-W B2HB-19CondensingGas89.1%
Viessmann VITODENS 200-W B2HB-26CondensingGas89.1%
Viessmann VITODENS 200-W B2HB-30CondensingGas89.2%
Viessmann VITODENS 200-W B2HB-35CondensingGas89.2%
Viessmann Vitodens 200-W B2KA-26CondensingGas89.0%
Viessmann Vitodens 200-W B2KA-30CondensingGas89.0%
Viessmann Vitodens 200-W B2KA-35CondensingGas89.1%
Viessmann VITODENS 200-W B2KB-26CondensingGas89.0%
Viessmann VITODENS 200-W B2KB-30CondensingGas89.0%
Viessmann VITODENS 200-W B2KB-35CondensingGas89.1%
Viessmann Vitodens 200-W WB2B 19kW System boilerCondensingGas89.0%
Viessmann Vitodens 200-W WB2B 26 kW Combi BoilerCondensingLPG90.2%
Viessmann Vitodens 200-W WB2B 26 kW System boilerCondensingGas89.3%
Viessmann Vitodens 200-W WB2B 26kW Combi BoilerCondensingGas89.2%
Viessmann Vitodens 200-W WB2B 26kW System boilerCondensingLPG90.3%
Viessmann Vitodens 200-W WB2B 30 kW System BoilerCondensingLPG90.3%
Viessmann Vitodens 200-W WB2B 30kW Combi boilerCondensingGas89.2%
Viessmann Vitodens 200-W WB2B 30kW System BoilerCondensingGas89.3%
Viessmann Vitodens 200-W WB2B 35kW Combi boilerCondensingGas89.1%
Viessmann Vitodens 200-W WB2B 35kW System BoilerCondensingLPG90.2%
Viessmann Vitodens 200W WB2C 19kW SystemCondensingGas89.0%
Viessmann Vitodens 200W WB2C 26kW CombiCondensingGas89.2%
Viessmann Vitodens 200W WB2C 26kW SystemCondensingGas89.3%
Viessmann Vitodens 200W WB2C 30kW CombiCondensingGas89.2%
Viessmann Vitodens 200W WB2C 30kW SystemCondensingGas89.3%
Viessmann Vitodens 200W WB2C 35kW CombiCondensingGas89.1%
Viessmann Vitodens 200W WB2C 35kW SystemCondensingGas89.2%
Viessmann Vitodens 222-F B2TA-19CondensingGas89.4%
Viessmann Vitodens 222-F B2TA-26CondensingGas89.4%
Viessmann Vitodens 222-F B2TA-35CondensingGas89.5%
Viessmann Vitodens 222F FS2B 19kW Combi with StoreCondensingGas89.3%
Viessmann Vitodens 222F FS2B 26kW Combi with StoreCondensingGas89.6%
Viessmann Vitodens 222F FS2B 35kW Combi with StoreCondensingGas89.5%
Viessmann Vitodens 242F FB2B 19kW Combi with StoreCondensingGas89.3%
Viessmann Vitodens 242F FB2B 26kW Combi with StoreCondensingGas89.6%
Viessmann Vitodens 300 Combi WB3A – 24kWCondensingGas89.3%
Viessmann Vitodens 300 WB3A – 24kWCondensingGas89.4%
Viessmann Vitodens 300 WB3A – 32kWCondensingGas89.4%
Viessmann Vitodens 300 WB3A – 44kWCondensingGas89.2%
Viessmann Vitodens 300 WB3A – 66kWCondensingGas89.2%
Viessmann Vitodens 333CondensingGas89.4%
Viessmann Vitodens 333 WS3ACondensingGas89.3%
Viessmann Vitodens 343FCondensingGas89.4%
Viessmann Vitopend 100 Combi WH1-24kWNon-CondensingGas75.3%
Vokèra BY RIELLO evolve 18SCondensingGas89.6%
Vokèra BY RIELLO evolve 24CCondensingGas89.5%
Vokèra BY RIELLO evolve 24SCondensingGas89.6%
Vokèra BY RIELLO evolve 28CCondensingGas89.5%
Vokèra BY RIELLO evolve 32CCondensingGas89.4%
Vokera Compact 24Non-CondensingGas80.3%
Vokera Compact 24 LPGNon-CondensingLPG82.2%
Vokera Compact 25CondensingGas89.0%
Vokera Compact 25ACondensingGas89.1%
Vokera Compact 25HECondensingGas86.0%
Vokera Compact 28Non-CondensingGas80.3%
Vokera Compact 28 LPGNon-CondensingLPG81.8%
Vokera Compact 29CondensingGas88.9%
Vokera Compact 29ACondensingGas89.0%
Vokera Compact 29HECondensingGas86.2%
Vokera Compact 35 HECondensingGas85.8%
Vokera Easi-Heat Plus 25CCondensingGas89.1%
Vokera Easi-Heat Plus 29CCondensingGas89.0%
Vokera Eclipse ESCCondensingGas85.5%
Vokera Eclipse ESC 226CondensingGas89.0%
Vokera Eclipse ESSCondensingGas85.6%
Vokera Eclipse ESS 216CondensingGas88.9%
Vokera Eclipse ESS 226CondensingGas89.1%
Vokera Excel 25CondensingGas89.1%
Vokera Excel 29CondensingGas89.0%
Vokera Excell 80ENon-CondensingGas73.0%
Vokera Excell 96ENon-CondensingGas73.0%
Vokera Hydra Hydra 26CondensingGas89.0%
Vokera Hydra Hydra 26 LPGCondensingLPG91.0%
Vokera Linea 24Non-CondensingGas77.5%
Vokera Linea 24 eNon-CondensingGas78.2%
Vokera Linea 28Non-CondensingGas77.6%
Vokera Linea 28 eNon-CondensingGas78.0%
Vokera Linea 28HECondensingGas88.5%
Vokera Linea 32HECondensingGas89.2%
Vokera Linea 36HECondensingGas89.0%
Vokera Linea 726Non-CondensingGas80.3%
Vokera Linea 726 LPGNon-CondensingLPG82.2%
Vokera Linea 730Non-CondensingGas80.3%
Vokera Linea 730 LPGNon-CondensingLPG82.2%
Vokera Linea 735Non-CondensingGas80.3%
Vokera Linea 735 LPGNon-CondensingLPG82.2%
Vokera Linea HE 25HECondensingGas88.5%
Vokera Linea HE 25HE LPGCondensingLPG89.7%
Vokera Linea HE 30HECondensingGas88.7%
Vokera Linea HE 30HE LPGCondensingLPG90.0%
Vokera Linea HE 35HECondensingGas89.0%
Vokera Linea HE 35HE LPGCondensingLPG89.5%
Vokera Linea Linea 24Non-CondensingLPG80.3%
Vokera Linea Linea 28Non-CondensingLPG80.6%
Vokera Linea OneCondensingGas89.2%
Vokera Linea PlusNon-CondensingGas80.1%
Vokera Linea Plus AGNon-CondensingGas80.1%
Vokera LineamaxNon-CondensingGas78.1%
Vokera Maxim 25CondensingGas89.1%
Vokera Maxim 29CondensingGas89.0%
Vokera Meteor S90Non-CondensingGas68.0%
Vokera Meteor V90Non-CondensingGas68.0%
Vokera Mynute 10eNon-CondensingGas77.0%
Vokera Mynute 12 HECondensingGas88.8%
Vokera Mynute 12eNon-CondensingGas79.2%
Vokera Mynute 14eNon-CondensingGas79.1%
Vokera Mynute 15 HECondensingGas88.8%
Vokera Mynute 15VHECondensingGas89.3%
Vokera Mynute 16eNon-CondensingGas79.6%
Vokera Mynute 20 HECondensingGas88.8%
Vokera Mynute 20eNon-CondensingGas78.0%
Vokera Mynute 20VHECondensingGas88.8%
Vokera Mynute 24MNon-CondensingGas80.1%
Vokera Mynute 25 HECondensingGas88.8%
Vokera Mynute 25ACondensingGas89.0%
Vokera Mynute 25EHECondensingGas86.1%
Vokera Mynute 28eNon-CondensingGas78.1%
Vokera Mynute 29EHECondensingGas85.9%
Vokera Mynute 30 HECondensingGas88.8%
Vokera Mynute 35 HECondensingGas88.8%
Vokera Mynute 35eNon-CondensingGas80.4%
Vokera Mynute 35e LPGNon-CondensingLPG82.3%
Vokera Mynute HECondensingGas88.8%
Vokera Mynute i20CondensingGas89.5%
Vokera Mynute i30CondensingGas89.1%
Vokera Mynute Mynute 12e LPGNon-CondensingLPG81.4%
Vokera Mynute Mynute 16e LPGNon-CondensingLPG81.2%
Vokera Mynute Mynute 20e LPGNon-CondensingLPG81.3%
Vokera Option 24Non-CondensingGas78.4%
Vokera Pinnacle Pinnacle 16CondensingGas88.9%
Vokera Pinnacle Pinnacle 16 LPGCondensingLPG90.8%
Vokera Pinnacle Pinnacle 26CondensingGas89.1%
Vokera Pinnacle Pinnacle 26 LPGCondensingLPG91.1%
Vokera Synergy 25eCondensingGas88.6%
Vokera Synergy 29CondensingGas86.7%
Vokera Synergy 29 LPGCondensingLPG87.8%
Vokera Synergy 29eCondensingGas89.0%
Vokera Syntesi 25CondensingGas86.6%
Vokera Syntesi 25 LPGCondensingLPG88.9%
Vokera Syntesi 25eCondensingGas88.5%
Vokera Syntesi 29CondensingGas86.6%
Vokera Syntesi 29 LPGCondensingLPG87.7%
Vokera Syntesi 29eCondensingGas88.9%
Vokera Syntesi 35CondensingGas87.0%
Vokera Syntesi 35 LPGCondensingLPG88.5%
Vokera Unica 28 HECondensingGas88.8%
Vokera Unica 32 HECondensingGas88.8%
Vokera Unica 36HECondensingGas88.7%
Vokera Unica HECondensingGas88.7%
Vokera Unica I28CondensingGas89.6%
Vokera Unica I32CondensingGas89.6%
Vokera Unica i36CondensingGas89.2%
Vokera VerveCondensingGas88.9%
Vokera Vibe 20ACondensingGas89.2%
Vokera Vibe 25ACondensingGas89.1%
Vokera Vision 20SCondensingGas89.2%
Vokera Vision 25CCondensingGas89.1%
Vokera Vision 25SCondensingGas89.1%
Vokera Vision 30CCondensingGas89.0%
Warmflow 120/150 BluebirdNon-CondensingOil85.4%
Warmflow 50/70 BluebirdNon-CondensingOil85.4%
Warmflow 70/90 BluebirdNon-CondensingOil81.9%
Warmflow 90/120 BluebirdNon-CondensingOil84.3%
Warmflow Bluebird 120/150 BBNon-CondensingOil85.4%
Warmflow Bluebird 150/200BBNon-CondensingOil84.7%
Warmflow Bluebird 50/70 BBNon-CondensingOil84.1%
Warmflow Bluebird 70/90 BBNon-CondensingOil84.7%
Warmflow Bluebird 90/120 BBNon-CondensingOil85.1%
Warmflow Boilerhouse B1Non-CondensingOil85.5%
Warmflow Boilerhouse B120HECondensingOil90.8%
Warmflow Boilerhouse B70HECondensingOil90.7%
Warmflow Boilerhouse B90HECondensingOil90.7%
Warmflow Combi 70/90 CombiNon-CondensingOil83.0%
Warmflow Combi 70/90 Kabin PakNon-CondensingOil83.0%
Warmflow Combi C90HECondensingOil89.1%
Warmflow G-Series GC29ACondensingGas88.7%
Warmflow G-Series GC29BCondensingGas85.5%
Warmflow G-Series GS25ACondensingGas88.4%
Warmflow G-Series GS25BCondensingGas85.9%
Warmflow Goldbird 120/150 GBNon-CondensingOil85.4%
Warmflow Goldbird 150/200GBNon-CondensingOil84.7%
Warmflow Goldbird 50/70 GBNon-CondensingOil84.1%
Warmflow Goldbird 70/90 GBNon-CondensingOil84.7%
Warmflow Goldbird 90/120 GBNon-CondensingOil85.1%
Warmflow Kabin Pak 50/70 KPNon-CondensingOil84.1%
Warmflow Kabin Pak 70/90 KPNon-CondensingOil84.7%
Warmflow Kabin Pak 90/120 KPNon-CondensingOil85.1%
Warmflow KABIN PAK COMBI 120 HE ECO KC120HEECondensingOil88.1%
Warmflow KABIN PAK COMBI 70 HE ECO KC70HEECondensingOil88.7%
Warmflow KABIN PAK COMBI 90 HE ECO KC90HEECondensingOil88.6%
Warmflow Kabin Pak K120HECondensingOil90.7%
Warmflow Kabin Pak K150HECondensingOil90.3%
Warmflow Kabin Pak K70HECondensingOil90.7%
Warmflow Kabin Pak K90Non-CondensingOil85.5%
Warmflow Kabin Pak K90HECondensingOil90.8%
Warmflow Kabin Pak KC90Non-CondensingOil83.8%
Warmflow Kabin Pak KC90HECondensingOil89.1%
Warmflow Kabin Pak KP150HECondensingOil90.3%
Warmflow Kabin Pak KP70HECondensingOil90.7%
Warmflow Kabin Pak KP90Non-CondensingOil85.5%
Warmflow Kabin Pak KP90HECondensingOil90.8%
Warmflow System S70HECondensingOil90.7%
Warmflow System S90HECondensingOil90.8%
Warmflow System Whitebird 50/70 SWBNon-CondensingOil84.1%
Warmflow System Whitebird 70/90 SWBNon-CondensingOil84.7%
Warmflow UTILITY COMBI 120 HE ECO UC120HEECondensingOil88.1%
Warmflow UTILITY COMBI 70 HE ECO UC70HEECondensingOil88.7%
Warmflow UTILITY COMBI 90 HE ECO UC90HEECondensingOil88.6%
Warmflow Utility U120HECondensingOil90.7%
Warmflow Utility U70HECondensingOil90.7%
Warmflow Utility U90Non-CondensingOil85.5%
Warmflow Utility U90HECondensingOil90.8%
Warmflow Utility UC90Non-CondensingOil83.8%
Warmflow Utility UC90HECondensingOil89.1%
Warmflow Utility UP150HECondensingOil90.3%
Warmflow Utility UP70HECondensingOil90.7%
Warmflow Utility UP90Non-CondensingOil85.5%
Warmflow Utility UP90HECondensingOil90.8%
Warmflow Wall Mounted 50/70 ExternalNon-CondensingOil84.8%
Warmflow Wall Mounted 50/70 InternalNon-CondensingOil84.8%
Warmflow Whitebird 120/150 WBNon-CondensingOil85.4%
Warmflow Whitebird 150/200WBNon-CondensingOil84.7%
Warmflow Whitebird 50/70 WBNon-CondensingOil84.1%
Warmflow Whitebird 70/90 WBNon-CondensingOil84.7%
Warmflow Whitebird 90/120 WBNon-CondensingOil85.1%
Warmworld FFC 30/60CondensingGas86.3%
Warmworld FFC 65/80CondensingGas85.6%
Warmworld FFC CombiCondensingGas86.2%
Warmworld Warmworld CombiCondensingGas85.2%
Warmworld Warmworld HE 30CondensingGas83.8%
Warmworld Warmworld HE 40CondensingGas84.2%
Warmworld Warmworld HE 50CondensingGas84.8%
Warmworld Warmworld HE 70/80CondensingGas84.5%
Wickes Wickes 40bfNon-CondensingGas65.0%
Wickes Wickes 45fNon-CondensingGas72.0%
Wickes Wickes 50bfNon-CondensingGas65.0%
Wickes Wickes 65fNon-CondensingGas72.0%
Wickes Wickes combiNon-CondensingGas70.0%
Wolf CGB-11CondensingGas88.9%
Wolf CGB-20CondensingLPG89.9%
Wolf CGB-24CondensingLPG89.7%
Wolf CGB-35CondensingLPG90.3%
Wolf CGB-50CondensingLPG90.2%
Wolf CGB-K-20CondensingLPG89.8%
Wolf CGB-K-24CondensingLPG89.7%
Wolf COB-20CondensingOil91.4%
Wolf COB-29CondensingOil91.4%
Wolf TGG-18 Topline BoilerNon-CondensingLPG82.3%
Wolf TGG-24 Topline BoilerNon-CondensingLPG82.3%
Wolf TGG-K-18 Topline Combi BoilerNon-CondensingLPG82.2%
Wolf TGG-K-24 Topline Combi BoilerNon-CondensingLPG82.2%
Worcester 14/19 CBi RSFNon-CondensingGas79.4%
Worcester 15 CBi RSFNon-CondensingGas76.6%
Worcester 15 Sbi RSFNon-CondensingGas79.1%
Worcester 19/24 CBi RSFNon-CondensingGas78.4%
Worcester 24 CBi RSFNon-CondensingGas76.9%
Worcester 24 CDi – L OFNon-CondensingLPG79.6%
Worcester 24 Cdi BFNon-CondensingGas79.4%
Worcester 24 Cdi OFNon-CondensingGas76.2%
Worcester 24 Cdi RSFNon-CondensingGas76.0%
Worcester 24 CDi RSF-LNon-CondensingLPG80.5%
Worcester 24 I RSFNon-CondensingGas76.1%
Worcester 24 LE RSFNon-CondensingGas76.0%
Worcester 24 Sbi RSFNon-CondensingGas78.3%
Worcester 24 SI II RSFNon-CondensingLPG80.5%
Worcester 240 CFNon-CondensingGas65.0%
Worcester 240bfNon-CondensingGas65.0%
Worcester 240ofNon-CondensingGas65.0%
Worcester 240rsfNon-CondensingGas70.0%
Worcester 24CDi RSF Serial ASBNon-CondensingGas78.1%
Worcester 24CDi RSF Serial ASCNon-CondensingLPG80.5%
Worcester 24i – L RSFNon-CondensingGas78.3%
Worcester 24i JuniorNon-CondensingGas78.0%
Worcester 25 Si – L RSFNon-CondensingGas78.0%
Worcester 25 Si RSFNon-CondensingLPG81.1%
Worcester 25Si – LL RSFNon-CondensingLPG81.1%
Worcester 26 Cdi XtraCondensingGas85.4%
Worcester 26 CDi Xtra RSFCondensingLPG86.5%
Worcester 26 CDi Xtra RSF – LCondensingGas86.4%
Worcester 28 CDi – L RSFNon-CondensingLPG80.7%
Worcester 28 Cdi RSFNon-CondensingGas78.9%
Worcester 28 LE RSFNon-CondensingGas78.9%
Worcester 28 SI II RSFNon-CondensingGas78.4%
Worcester 28 Si RSFNon-CondensingLPG81.4%
Worcester 280rsfNon-CondensingGas70.0%
Worcester 28i JuniorNon-CondensingGas78.9%
Worcester 28i RSFNon-CondensingGas78.0%
Worcester 35 CDi II RSFNon-CondensingGas78.5%
Worcester 35 Cdi RSFNon-CondensingGas78.9%
Worcester 533 Compact ErPCondensingGas89.8%
Worcester 533 Compact NGCondensingGas89.8%
Worcester 535 Compact ErPCondensingGas89.8%
Worcester 535 Compact NGCondensingGas89.8%
Worcester 80 ic RSFNon-CondensingGas75.2%
Worcester 9.24electronicrsfNon-CondensingGas70.0%
Worcester 9.24electronicrsfeNon-CondensingGas70.0%
Worcester 9/14 CBi RSFNon-CondensingGas78.5%
Worcester Bosch 50/70.000Non-CondensingOil85.3%
Worcester Bosch 70/90-000-NI-LNon-CondensingOil84.2%
Worcester Bosch 70/90.000Non-CondensingOil83.9%
Worcester Bosch 90/110.000Non-CondensingOil85.1%
Worcester Bosch Greenstar ZWBR 7-25ACondensingGas89.4%
Worcester Bosch RX-2 RSFCondensingGas85.4%
Worcester Bosch/British Gas CC1 ZWB 7-29ACondensingGas88.7%
Worcester Bosch/British Gas CS1 ZB 7-28ACondensingGas88.8%
Worcester Bosch/British Gas ICC2 ZWBR 11-37ACondensingGas89.5%
Worcester Bosch/British Gas ICC2 ZWBR 8-30ACondensingGas89.5%
Worcester Bosch/British Gas ICS1 ZBR 8-35ACondensingGas89.6%
Worcester Bosch/British Gas ICS1 ZSBR 7-28ACondensingGas88.8%
Worcester Bosch/British Gas RD529 ZWB 7-29 ACondensingGas88.7%
Worcester Danesmoor 12/14-000-GB-LNon-CondensingOil84.4%
Worcester Danesmoor 12/14-R00-GB-LNon-CondensingOil84.4%
Worcester Danesmoor 12/14.OOONon-CondensingOil84.3%
Worcester Danesmoor 12/14.ROONon-CondensingOil84.3%
Worcester Danesmoor 15/19.OOONon-CondensingOil85.3%
Worcester Danesmoor 15/19.ROONon-CondensingOil85.3%
Worcester Danesmoor 20/25 – R00-GB-LNon-CondensingOil84.2%
Worcester Danesmoor 20/25-000-GB-LNon-CondensingOil84.2%
Worcester Danesmoor 20/25.OOONon-CondensingOil83.9%
Worcester Danesmoor 20/25.ROONon-CondensingOil83.9%
Worcester Danesmoor 26/32.OOONon-CondensingOil85.1%
Worcester Danesmoor 26/32.ROONon-CondensingOil85.1%
Worcester Danesmoor 32/50 – 000 -GB – LNon-CondensingOil84.3%
Worcester Danesmoor 32/50.000Non-CondensingOil83.1%
Worcester Danesmoor 50/70 – 000 – GB – LNon-CondensingOil84.1%
Worcester Danesmoor 50/70.000Non-CondensingOil84.6%
Worcester Danesmoor FS 12-18Non-CondensingOil84.7%
Worcester Danesmoor FS 18-25Non-CondensingOil85.6%
Worcester Danesmoor System 12/14-0S0-GB-L SystemNon-CondensingOil84.4%
Worcester Danesmoor System 12/14-RS0-GB-L SystemNon-CondensingOil84.4%
Worcester Danesmoor System 12/14.OSONon-CondensingOil84.3%
Worcester Danesmoor System 12/14.RSONon-CondensingOil84.3%
Worcester Danesmoor System 15.19.OSONon-CondensingOil85.3%
Worcester Danesmoor System 15/19.RSONon-CondensingOil85.3%
Worcester Danesmoor System 20/25-0S0-GB-L SystemNon-CondensingOil84.2%
Worcester Danesmoor System 20/25-RS0-GB-L SystemNon-CondensingOil84.2%
Worcester Danesmoor System 20/25.OSONon-CondensingOil83.9%
Worcester Danesmoor System 20/25.RSONon-CondensingOil83.9%
Worcester Danesmoor Utility 12/14-000-GB-L UtilityNon-CondensingOil84.4%
Worcester Danesmoor Utility 12/14-R00-GB-L UtilityNon-CondensingOil84.4%
Worcester Danesmoor Utility 12/14.OOONon-CondensingOil84.3%
Worcester Danesmoor Utility 12/14.ROONon-CondensingOil84.3%
Worcester Danesmoor Utility 15/19.OOONon-CondensingOil85.3%
Worcester Danesmoor Utility 15/19.ROONon-CondensingOil85.3%
Worcester Danesmoor Utility 20/25-000-GB-L UtilityNon-CondensingOil84.2%
Worcester Danesmoor Utility 20/25-R00-GB-L UtilityNon-CondensingOil84.2%
Worcester Danesmoor Utility 20/25.OOONon-CondensingOil83.9%
Worcester Danesmoor Utility 20/25.ROONon-CondensingOil83.9%
Worcester Danesmoor Utility 32/50 – 000 – GB – Utility – LNon-CondensingOil84.3%
Worcester Danesmoor Utility 50/70 – 000 – GB – Utility – LNon-CondensingOil84.1%
Worcester Danesmoor Wall Mounted 12/19 – R00 – GB – LNon-CondensingOil84.4%
Worcester Danesmoor WM 12/19 RSNon-CondensingOil84.1%
Worcester Delglo 2bfNon-CondensingGas65.0%
Worcester Delglo 2ofNon-CondensingGas65.0%
Worcester Delglo 3bfNon-CondensingGas65.0%
Worcester Delglo 3ofNon-CondensingGas65.0%
Worcester Firefly HD II 100Non-CondensingOil65.0%
Worcester Firefly HD II 40Non-CondensingOil65.0%
Worcester Firefly HD II 40 D typeNon-CondensingOil65.0%
Worcester Firefly HD II 50Non-CondensingOil65.0%
Worcester Firefly HD II 50 D typeNon-CondensingOil65.0%
Worcester Firefly HD II 60 D typeNon-CondensingOil65.0%
Worcester Firefly HD II 70Non-CondensingOil65.0%
Worcester Firefly HD II 80Non-CondensingOil65.0%
Worcester Firefly PJ90-120Non-CondensingOil65.0%
Worcester GB 162-50 kWCondensingGas88.7%
Worcester GB162-50 V2CondensingGas88.7%
Worcester GB162-65 V2CondensingGas88.6%
Worcester GB162-65kWCondensingGas88.9%
Worcester Greenstar 12 RiCondensingGas88.8%
Worcester Greenstar 12i SystemCondensingGas88.8%
Worcester Greenstar 12i System ErPCondensingGas89.8%
Worcester Greenstar 12i System ErP LPGCondensingLPG89.8%
Worcester Greenstar 12Ri ErPCondensingGas88.8%
Worcester Greenstar 12Ri ErP LPGCondensingLPG89.0%
Worcester Greenstar 15 i SystemCondensingLPG89.8%
Worcester Greenstar 15i System ErPCondensingGas89.7%
Worcester Greenstar 15i System ErP LPGCondensingLPG89.1%
Worcester Greenstar 15RiCondensingLPG89.8%
Worcester Greenstar 15Ri ErPCondensingGas88.8%
Worcester Greenstar 15Ri ErP LPGCondensingLPG89.1%
Worcester Greenstar 18 i SystemCondensingLPG89.8%
Worcester Greenstar 18i System ErPCondensingGas89.7%
Worcester Greenstar 18i System ErP LPGCondensingLPG89.1%
Worcester Greenstar 18RiCondensingLPG89.8%
Worcester Greenstar 18Ri ErPCondensingGas88.8%
Worcester Greenstar 18Ri ErP LPGCondensingLPG89.2%
Worcester Greenstar 21i System ErPCondensingGas89.7%
Worcester Greenstar 21i System ErP LPGCondensingLPG89.1%
Worcester Greenstar 24CondensingGas88.6%
Worcester Greenstar 24 RiCondensingGas89.2%
Worcester Greenstar 24i juniorCondensingLPG90.1%
Worcester Greenstar 24i SystemCondensingGas89.2%
Worcester Greenstar 24i System ErPCondensingGas89.7%
Worcester Greenstar 24i System ErP LPGCondensingLPG89.1%
Worcester Greenstar 24Ri ErPCondensingGas89.2%
Worcester Greenstar 24Ri ErP LPGCondensingLPG88.9%
Worcester Greenstar 25 SiCondensingLPG90.1%
Worcester Greenstar 25 Si CompactCondensingGas89.8%
Worcester Greenstar 25i ErPCondensingGas89.6%
Worcester Greenstar 25i ErP LPGCondensingLPG89.1%
Worcester Greenstar 25Si Compact ErPCondensingGas89.8%
Worcester Greenstar 25Si Compact ErP LPGCondensingLPG90.4%
Worcester Greenstar 27 I System CompactCondensingGas89.0%
Worcester Greenstar 27 Ri CompactCondensingGas89.0%
Worcester Greenstar 27i System Compact ErPCondensingGas89.0%
Worcester Greenstar 27i System Compact ErP LPGCondensingLPG89.9%
Worcester Greenstar 27Ri Compact ErPCondensingGas89.0%
Worcester Greenstar 27Ri Compact ErP LPGCondensingLPG89.9%
Worcester Greenstar 28CondensingGas88.6%
Worcester Greenstar 28 CDi CompactCondensingLPG90.9%
Worcester Greenstar 28CDi Compact ErPCondensingGas89.8%
Worcester Greenstar 28CDi Compact ErP LPGCondensingLPG90.4%
Worcester Greenstar 28i juniorCondensingLPG90.1%
Worcester Greenstar 29CDi ClassicCondensingGas89.1%
Worcester Greenstar 29CDi Classic ErPCondensingGas89.1%
Worcester Greenstar 29CDi Classic ErP LPGCondensingLPG90.1%
Worcester Greenstar 29CDi CombiCondensingLPG90.1%
Worcester Greenstar 29HE Conventional ZB 7-29CondensingGas88.7%
Worcester Greenstar 30CondensingGas88.6%
Worcester Greenstar 30 CDi Classic RegularCondensingLPG90.2%
Worcester Greenstar 30 CDi Classic SystemCondensingLPG90.2%
Worcester Greenstar 30 I System CompactCondensingGas89.0%
Worcester Greenstar 30 LXi SystemCondensingGas89.0%
Worcester Greenstar 30 Ri CompactCondensingGas89.0%
Worcester Greenstar 30 SiCondensingLPG90.1%
Worcester Greenstar 30 Si CompactCondensingGas89.8%
Worcester Greenstar 30CDi Classic Regular ErPCondensingGas89.2%
Worcester Greenstar 30CDi Classic Regular ErP LPGCondensingLPG90.2%
Worcester Greenstar 30CDi Classic System ErPCondensingGas89.2%
Worcester Greenstar 30CDi Classic System ErP LPGCondensingLPG90.2%
Worcester Greenstar 30i ErPCondensingGas89.6%
Worcester Greenstar 30i ErP LPGCondensingLPG89.1%
Worcester Greenstar 30i System Compact ErPCondensingGas89.0%
Worcester Greenstar 30i System Compact ErP LPGCondensingLPG89.9%
Worcester Greenstar 30Ri Compact ErPCondensingGas89.0%
Worcester Greenstar 30Ri Compact ErP LPGCondensingLPG89.9%
Worcester Greenstar 30Si Compact ErPCondensingGas89.8%
Worcester Greenstar 30Si Compact ErP LPGCondensingLPG90.4%
Worcester Greenstar 32 CDi CompactCondensingGas89.8%
Worcester Greenstar 32CDi Compact ErPCondensingGas89.8%
Worcester Greenstar 32CDi Compact ErP LPGCondensingLPG90.4%
Worcester Greenstar 34 CDi CombiCondensingLPG90.1%
Worcester Greenstar 34CDi ClassicCondensingGas89.1%
Worcester Greenstar 34CDi Classic ErPCondensingGas89.1%
Worcester Greenstar 34CDi Classic ErP LPGCondensingLPG90.1%
Worcester Greenstar 34CDi CombiCondensingGas89.1%
Worcester Greenstar 35 CDi Classic SystemCondensingLPG90.2%
Worcester Greenstar 35CDi Classic System ErPCondensingGas89.2%
Worcester Greenstar 35CDi Classic System ErP LPGCondensingLPG90.2%
Worcester Greenstar 36 CDi CompactCondensingLPG90.9%
Worcester Greenstar 36CDi Compact ErPCondensingGas89.8%
Worcester Greenstar 36CDi Compact ErP LPGCondensingLPG90.4%
Worcester Greenstar 36LXiCondensingGas89.8%
Worcester Greenstar 37 CDiCondensingLPG90.4%
Worcester Greenstar 38CDi ClassicCondensingGas89.0%
Worcester Greenstar 38CDi Classic ErPCondensingGas89.0%
Worcester Greenstar 38CDi Classic ErP LPGCondensingLPG90.0%
Worcester Greenstar 38CDi CombiCondensingLPG90.0%
Worcester Greenstar 40 CDi Classic RegularCondensingLPG90.2%
Worcester Greenstar 40CDi Classic Regular ErPCondensingGas89.2%
Worcester Greenstar 40CDi Classic Regular ErP LPGCondensingLPG90.2%
Worcester Greenstar 42 CDiCondensingLPG90.4%
Worcester Greenstar 42CDi ClassicCondensingGas89.4%
Worcester Greenstar 42CDi Classic ErPCondensingGas89.0%
Worcester Greenstar 42CDi Classic ErP LPGCondensingLPG90.0%
Worcester Greenstar 9i System ErPCondensingGas89.8%
Worcester Greenstar 9i System ErP LPGCondensingLPG89.8%
Worcester Greenstar Camray 12/18CondensingOil90.9%
Worcester Greenstar Camray 18/25CondensingOil91.2%
Worcester Greenstar Camray 25/32CondensingOil91.7%
Worcester Greenstar Camray External 12/18CondensingOil90.9%
Worcester Greenstar Camray External 18/25CondensingOil91.2%
Worcester Greenstar Camray External 25/32CondensingOil91.7%
Worcester Greenstar Camray External System 12/18CondensingOil90.9%
Worcester Greenstar Camray External System 18/25CondensingOil91.2%
Worcester Greenstar Camray External System 25/32CondensingOil91.7%
Worcester Greenstar Camray System 12/18CondensingOil90.9%
Worcester Greenstar Camray System 18/25CondensingOil91.2%
Worcester Greenstar Camray System 25/32CondensingOil91.7%
Worcester Greenstar Camray Utility 12/18CondensingOil90.9%
Worcester Greenstar Camray Utility 18/25CondensingOil91.2%
Worcester Greenstar Camray Utility 25/32CondensingOil91.7%
Worcester Greenstar Camray Utility System 12/18CondensingOil90.9%
Worcester Greenstar Camray Utility System 18/25CondensingOil91.2%
Worcester Greenstar Camray Utility System 25/32CondensingOil91.7%
Worcester Greenstar CDi 25 CdiCondensingGas90.0%
Worcester Greenstar CDi 27 CDiCondensingLPG90.4%
Worcester Greenstar CDi 30 CDiCondensingGas89.4%
Worcester Greenstar Cdi 30 Cdi ConventionalCondensingGas89.5%
Worcester Greenstar Cdi 30 Cdi SystemCondensingGas89.5%
Worcester Greenstar CDi 31 CDiCondensingGas89.4%
Worcester Greenstar CDi 35 CDiCondensingGas89.4%
Worcester Greenstar Cdi 40 CdiCondensingGas89.4%
Worcester Greenstar Cdi 40 Cdi ConventionalCondensingGas89.1%
Worcester Greenstar Danesmoor 12/18CondensingOil91.1%
Worcester Greenstar Danesmoor 12/18 ErPCondensingOil91.1%
Worcester Greenstar Danesmoor 18/25CondensingOil90.9%
Worcester Greenstar Danesmoor 18/25 ErPCondensingOil90.9%
Worcester Greenstar Danesmoor 18/25-OOO-GBCondensingOil90.8%
Worcester Greenstar Danesmoor 25/32CondensingOil90.7%
Worcester Greenstar Danesmoor 25/32 ErPCondensingOil90.7%
Worcester Greenstar Danesmoor External 12/18CondensingOil91.1%
Worcester Greenstar Danesmoor External 12/18 ErPCondensingOil91.1%
Worcester Greenstar Danesmoor External 18/25CondensingOil90.9%
Worcester Greenstar Danesmoor External 18/25 ErPCondensingOil90.9%
Worcester Greenstar Danesmoor External 25/32CondensingOil90.7%
Worcester Greenstar Danesmoor External 25/32 ErPCondensingOil90.7%
Worcester Greenstar Danesmoor System 12/18CondensingOil91.1%
Worcester Greenstar Danesmoor System 12/18 ErPCondensingOil91.1%
Worcester Greenstar Danesmoor System 18/25CondensingOil90.9%
Worcester Greenstar Danesmoor System 18/25 ErPCondensingOil90.9%
Worcester Greenstar Danesmoor System 25/32CondensingOil90.7%
Worcester Greenstar Danesmoor System 25/32 ErPCondensingOil90.7%
Worcester Greenstar Danesmoor System External 12/18CondensingOil91.1%
Worcester Greenstar Danesmoor System External 12/18 ErPCondensingOil91.1%
Worcester Greenstar Danesmoor System External 18/25CondensingOil90.9%
Worcester Greenstar Danesmoor System External 18/25 ErPCondensingOil90.9%
Worcester Greenstar Danesmoor System External 25/32CondensingOil90.7%
Worcester Greenstar Danesmoor System External 25/32 ErPCondensingOil90.7%
Worcester Greenstar Danesmoor System Utility 12/18CondensingOil91.1%
Worcester Greenstar Danesmoor System Utility 12/18 ErPCondensingOil91.1%
Worcester Greenstar Danesmoor System Utility 18/25CondensingOil90.9%
Worcester Greenstar Danesmoor System Utility 18/25 ErPCondensingOil90.9%
Worcester Greenstar Danesmoor System Utility 25/32CondensingOil90.7%
Worcester Greenstar Danesmoor System Utility 25/32 ErPCondensingOil90.7%
Worcester Greenstar Danesmoor Utility 12/18CondensingOil91.1%
Worcester Greenstar Danesmoor Utility 12/18 ErPCondensingOil91.1%
Worcester Greenstar Danesmoor Utility 18/25CondensingOil90.9%
Worcester Greenstar Danesmoor Utility 18/25 ErPCondensingOil90.9%
Worcester Greenstar Danesmoor Utility 25/32CondensingOil90.7%
Worcester Greenstar Danesmoor Utility 25/32 ErPCondensingOil90.7%
Worcester Greenstar Danesmoor Utility 32/50 ErPCondensingOil90.5%
Worcester Greenstar Danesmoor Utility 50/70 ErPCondensingOil90.7%
Worcester Greenstar Danesmoor Wall Mounted 18/25CondensingOil90.7%
Worcester Greenstar Danesmoor Wall-Mounted 12/18CondensingOil90.7%
Worcester Greenstar FS 30 CDi RegularCondensingGas88.9%
Worcester Greenstar FS 30CDi Regular ErPCondensingGas88.9%
Worcester Greenstar FS 42 CDi RegularCondensingGas88.8%
Worcester Greenstar FS 42CDi Regular ErPCondensingGas88.8%
Worcester Greenstar HE 12/22 RSCondensingOil89.5%
Worcester Greenstar HE Plus ZWBR 11-35ACondensingGas89.5%
Worcester Greenstar HE Plus ZWBR 7-28ACondensingGas88.7%
Worcester Greenstar HE ZB 7-27ACondensingGas88.8%
Worcester Greenstar HE ZWB 7-27ACondensingGas88.7%
Worcester Greenstar Heatslave 12/18CondensingOil89.3%
Worcester Greenstar Heatslave 18/25-OSO-GBCondensingOil89.1%
Worcester Greenstar Heatslave 25/32CondensingOil89.1%
Worcester Greenstar Heatslave External 12/18CondensingOil89.3%
Worcester Greenstar Heatslave External 18/25CondensingOil89.1%
Worcester Greenstar Heatslave External 25/32CondensingOil89.1%
Worcester Greenstar Heatslave II 12/18CondensingOil89.4%
Worcester Greenstar Heatslave II 12/18 ErPCondensingOil89.4%
Worcester Greenstar Heatslave II 18/25CondensingOil89.2%
Worcester Greenstar Heatslave II 18/25 ErPCondensingOil89.2%
Worcester Greenstar Heatslave II 25/32CondensingOil89.0%
Worcester Greenstar Heatslave II 25/32 ErPCondensingOil89.0%
Worcester Greenstar Heatslave II External 12/18CondensingOil89.4%
Worcester Greenstar Heatslave II External 12/18 ErPCondensingOil89.4%
Worcester Greenstar Heatslave II External 18/25CondensingOil89.2%
Worcester Greenstar Heatslave II External 18/25 ErPCondensingOil89.2%
Worcester Greenstar Heatslave II External 25/32CondensingOil89.0%
Worcester Greenstar Heatslave II External 25/32 ErPCondensingOil89.0%
Worcester Greenstar Highflow 440CondensingGas89.1%
Worcester Greenstar Highflow 440 CDiCondensingGas89.2%
Worcester Greenstar Highflow 440CDi ErPCondensingGas89.2%
Worcester Greenstar Highflow 550 CDiCondensingGas89.2%
Worcester Greenstar Highflow 550CDi ErPCondensingGas89.2%
Worcester Greenstar R 25 HE CombiCondensingGas88.7%
Worcester Greenstar R 28 HE SystemCondensingGas88.8%
Worcester Greenstar R 29 HE ConventionalCondensingGas88.8%
Worcester Greenstar R 30 HE CombiCondensingGas88.7%
Worcester Greenstar R 30 HE Plus CombiCondensingLPG89.7%
Worcester Greenstar R 30HE Plus CombiCondensingGas88.7%
Worcester Greenstar R 35 HE Plus CombiCondensingGas89.5%
Worcester Greenstar R 40 HE ConventionalCondensingGas89.0%
Worcester Greenstar R 40 HE Plus CombiCondensingGas88.9%
Worcester Greenstar Utility 18/25-OOO-GBCondensingOil90.8%
Worcester Greenstar Utility 32/50-000-GBCondensingOil90.7%
Worcester Greenstar Utility 50/70-000-GBCondensingOil90.5%
Worcester Greenstar ZB 7-28 HECondensingGas88.8%
Worcester Greenstar ZWB 7-25 HE CombiCondensingGas88.7%
Worcester Greenstar ZWB 7-30 HE CombiCondensingGas88.7%
Worcester Greenstar ZWBR 11-35 HE PlusCondensingGas89.5%
Worcester Greenstar ZWBR 7-30 HE PlusCondensingGas88.7%
Worcester Heat Slave 12/14.OSONon-CondensingOil82.8%
Worcester Heat Slave 12/14.RSONon-CondensingOil82.8%
Worcester Heat Slave 15/19.OSONon-CondensingOil83.7%
Worcester Heat Slave 15/19.RSONon-CondensingOil83.7%
Worcester Heat Slave 20/25.OSONon-CondensingOil82.4%
Worcester Heat Slave 20/25.RSONon-CondensingOil83.7%
Worcester Heatslave 12/14-OSO-GB-L Oil CombiNon-CondensingOil82.7%
Worcester Heatslave 12/14-RSO-GB-L Oil CombiNon-CondensingOil82.7%
Worcester Heatslave 12/14RSNon-CondensingOil70.0%
Worcester Heatslave 2 g40bfNon-CondensingGas65.0%
Worcester Heatslave 2 g40ofNon-CondensingGas65.0%
Worcester Heatslave 2 g50bfNon-CondensingGas65.0%
Worcester Heatslave 2 g50ofNon-CondensingGas65.0%
Worcester Heatslave 20/25-OSO-GB-L Oil CombiNon-CondensingOil82.5%
Worcester Heatslave 20/25-RSO-GB-L Oil CombiNon-CondensingOil82.5%
Worcester Heatslave 20/25RSNon-CondensingOil70.0%
Worcester Heatslave 26/32-OSO-GB Oil CombiNon-CondensingOil83.4%
Worcester Heatslave 26/32-RSO-GB Oil CombiNon-CondensingOil83.4%
Worcester Heatslave 9.24bfNon-CondensingGas65.0%
Worcester Heatslave 9.24ofNon-CondensingGas65.0%
Worcester Heatslave 9.24rsfNon-CondensingGas70.0%
Worcester Heatslave highflow3.5rsfNon-CondensingGas72.0%
Worcester Heatslave highflow4.5bfNon-CondensingGas65.0%
Worcester Heatslave highflow4.5ofNon-CondensingGas65.0%
Worcester Heatslave highflowbfNon-CondensingGas65.0%
Worcester Heatslave highflowofNon-CondensingGas65.0%
Worcester Heatslave juniorbfNon-CondensingGas65.0%
Worcester Heatslave juniorofNon-CondensingGas65.0%
Worcester Heatslave senior12bfNon-CondensingGas65.0%
Worcester Heatslave senior12ofNon-CondensingGas65.0%
Worcester Heatslave senior15bfNon-CondensingGas65.0%
Worcester Heatslave senior15ofNon-CondensingGas65.0%
Worcester Heatslave senior6bfNon-CondensingGas65.0%
Worcester Heatslave senior6ofNon-CondensingGas65.0%
Worcester High Flow 400 BFNon-CondensingGas75.9%
Worcester Highflow 400 Electronic BF BFNon-CondensingGas80.0%
Worcester Highflow 400 Electronic OF OFNon-CondensingGas78.5%
Worcester Highflow 400 Electronic RSF RSFNon-CondensingLPG80.3%
Worcester Highflow 400 OFNon-CondensingGas75.2%
Worcester Highflow 400 RSFNon-CondensingGas79.2%
Yorkpark Microstar 25CondensingGas88.4%
Yorkpark Microstar 25 CombiCondensingGas88.1%
Yorkpark Microstar 40CondensingGas88.7%
Yorkpark Microstar THR 25CondensingGas88.2%
Yorkpark Microstar THR 50CondensingGas87.2%
Yorkpark Yorkstar 20CondensingOil88.9%