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Manufacturers

Boilers Boiler Efficiency Rating

Model Type Fuel Efficiency
A J Wells and Sons Charnwood OLX45 Hearth Boiler Non-Condensing Oil 82.6%
A O Smith UB70 G Condensing Gas 89.5%
ACV HeatMaster 35TC Condensing Gas 89.7%
ACV HeatMaster 35TC P Condensing LPG 90.7%
ACV Prestige 24 Excellence Condensing Gas 89.6%
ACV Prestige 24 Excellence P Condensing LPG 90.6%
ACV Prestige 24 Solo Condensing Gas 89.3%
ACV Prestige 24 Solo P Condensing LPG 90.3%
ACV Prestige 32 Excellence Condensing Gas 89.6%
ACV Prestige 32 Excellence P Condensing LPG 90.6%
ACV Prestige 32 Solo Condensing Gas 89.3%
ACV Prestige 32 Solo P Condensing LPG 90.3%
ACV Prestige 50 Solo Condensing Gas 88.9%
ACV Prestige 50 Solo P Condensing LPG 89.9%
ACV Prestige 75 Solo Condensing Gas 88.9%
ACV Prestige 75 Solo P Condensing LPG 89.9%
Alde Slimline 2927 Non-Condensing Gas 70.0%
Alpha 240E Non-Condensing Gas 78.3%
Alpha 240E Alpha Combimax 350 Non-Condensing Gas 78.7%
Alpha 240p Non-Condensing Gas 70.0%
Alpha 240X Non-Condensing Gas 74.3%
Alpha 240xe Non-Condensing Gas 70.0%
Alpha 240xp Non-Condensing Gas 70.0%
Alpha 280E Non-Condensing Gas 78.9%
Alpha 280E Alpha Combimax 600 Non-Condensing Gas 79.3%
Alpha 280P Non-Condensing Gas 74.9%
Alpha 500E Non-Condensing Gas 78.6%
Alpha C23 Non-Condensing Gas 78.9%
Alpha C27 Non-Condensing Gas 78.9%
Alpha CB24 Non-Condensing Gas 79.2%
Alpha CB24X Non-Condensing Gas 79.2%
Alpha CB28 Non-Condensing Gas 80.1%
Alpha CB28X Non-Condensing Gas 80.1%
Alpha CB50 Non-Condensing Gas 80.3%
Alpha CD 25 C Condensing LPG 90.0%
Alpha CD 28 C Condensing LPG 89.7%
Alpha CD 35 C Condensing LPG 90.3%
Alpha CD 50 S Condensing LPG 89.5%
Alpha CD 70 S Condensing LPG 89.7%
Alpha CD12S Condensing LPG 89.6%
Alpha CD13R Condensing Gas 88.5%
Alpha CD18R Condensing Gas 88.4%
Alpha CD18S Condensing Gas 88.6%
Alpha CD20S Condensing LPG 89.8%
Alpha CD24C Condensing Gas 88.7%
Alpha CD24R Condensing Gas 88.6%
Alpha CD24S Condensing Gas 88.8%
Alpha CD25X Condensing Gas 88.6%
Alpha CD28S Condensing LPG 89.8%
Alpha CD28X Condensing Gas 88.5%
Alpha CD30S Condensing Gas 88.6%
Alpha CD32C Condensing Gas 88.8%
Alpha CD50 Condensing Gas 89.3%
Alpha E-Tec 28 Condensing Gas 88.9%
Alpha E-Tec 28 LPG Condensing LPG 89.9%
Alpha E-Tec 33 Condensing Gas 89.0%
Alpha E-Tec 33 LPG Condensing LPG 90.0%
Alpha Eco Condensing Gas 88.8%
Alpha Eco2 Condensing LPG 89.8%
Alpha Eco2 Plus Condensing Gas 88.8%
Alpha Evoke 28 Condensing Gas 88.9%
Alpha Evoke 28 LPG Condensing LPG 89.9%
Alpha Evoke 33 Condensing Gas 89.0%
Alpha Evoke 33 LPG Condensing LPG 90.0%
Alpha HE CB25 Condensing Gas 85.9%
Alpha HE CB33 Condensing Gas 85.9%
Alpha HE SY25 Condensing Gas 86.0%
Alpha InTec 12S Condensing Gas 88.8%
Alpha InTec 18S Condensing Gas 89.3%
Alpha InTec 24X Condensing Gas 89.2%
Alpha InTec 26C Condensing Gas 89.2%
Alpha InTec 28S Condensing Gas 88.9%
Alpha InTec 28X Condensing Gas 88.2%
Alpha InTec 30C Condensing Gas 88.2%
Alpha InTec 30GS Condensing LPG 89.8%
Alpha InTec 34C Condensing Gas 88.8%
Alpha InTec 40 GS2 Condensing Gas 88.9%
Alpha InTec 40GS Condensing LPG 89.9%
Alpha InTec 50 CS Condensing LPG 90.0%
Alpha InTec2 20SE Condensing Gas 88.9%
Alpha InTec2 25 X Condensing LPG 89.8%
Alpha InTec2 25XE Condensing Gas 88.8%
Alpha InTec2 26CE Condensing Gas 88.8%
Alpha InTec2 28 X Condensing LPG 89.8%
Alpha InTec2 28X Condensing Gas 88.8%
Alpha InTec2 28XE Condensing Gas 88.8%
Alpha InTec2 30CE Condensing Gas 88.8%
Alpha InTec2 30SE Condensing Gas 89.0%
Alpha InTec2 35CE Condensing Gas 88.9%
Alpha SY24 Non-Condensing Gas 79.3%
Aquaflame Eco-Avance 25 Condensing Oil 90.1%
Aquaflame Eco-Avance 28 Condensing Oil 90.2%
Aquaflame Eco-Avance 30 Condensing Oil 89.8%
Aquaflame Eco-Avance II 15 Condensing Oil 89.9%
Aquaflame Eco-Avance II 19 Condensing Oil 89.9%
Aquaflame Eco-Avance II 24 Condensing Oil 90.1%
Aquaflame Eco-Avance II 27 Condensing Oil 90.1%
Aquaflame Eco-Avance II 30 Condensing Oil 90.1%
Aquaflame Eco-Avance II 38 Condensing Oil 89.9%
Aquaflame Evolution II 110 Non-Condensing Oil 84.6%
Aquaflame Evolution II 50 Non-Condensing Oil 83.9%
Aquaflame Evolution II 65 Non-Condensing Oil 83.9%
Aquaflame Evolution II 80 Non-Condensing Oil 83.9%
Aquaflame Evolution II 95 Non-Condensing Oil 84.0%
Aquaflame Gem 50 Non-Condensing Oil 70.0%
Aquaflame Gem 50 B Non-Condensing Oil 70.0%
Aquaflame Gem 50 F Non-Condensing Oil 70.0%
Aquaflame Gem 70 Non-Condensing Oil 70.0%
Aquaflame Gem 70 B Non-Condensing Oil 70.0%
Aquaflame Gem 70 F Non-Condensing Oil 70.0%
Aquaflame Gem 90 Non-Condensing Oil 70.0%
Aquaflame Gem 90 B Non-Condensing Oil 70.0%
Aquaflame Gem 90 F Non-Condensing Oil 70.0%
Aquaflame HE 15 Condensing Oil 90.7%
Aquaflame HE 19 Condensing Oil 90.6%
Aquaflame HE 22 Condensing Oil 90.0%
Aquaflame Quartz 110 Non-Condensing Oil 70.0%
Aquaflame Quartz 110 B Non-Condensing Oil 70.0%
Aquaflame Quartz 110 F Non-Condensing Oil 70.0%
Aquaflame Quartz 135 Non-Condensing Oil 70.0%
Aquaflame Quartz 135 B Non-Condensing Oil 70.0%
Aquaflame Quartz 135 F Non-Condensing Oil 70.0%
Aquaflame Quartz 150 Non-Condensing Oil 70.0%
Aquaflame Quartz 160 B Non-Condensing Oil 70.0%
Aquaflame Quartz 160 F Non-Condensing Oil 70.0%
ARCA Pixel 25 FC Condensing Gas 89.1%
ARCA Pixel 25 FCR Condensing Gas 89.2%
ARCA Pixel 31 FC Condensing Gas 89.1%
ARCA Pixel 31 FCR Condensing Gas 89.2%
ARCA PIXELfast 120/25 FC Condensing Gas 89.1%
ARCA PIXELfast 120/26 FCX Condensing Gas 88.7%
ARCA PIXELfast 120/31 FC Condensing Gas 89.1%
ARCA PIXELfast 25 FC Condensing Gas 89.1%
ARCA PIXELfast 25 FC Sun Condensing Gas 89.1%
ARCA PIXELfast 25FCR Condensing Gas 89.2%
ARCA PIXELfast 26 FCX Condensing Gas 88.7%
ARCA PIXELfast 26 FCX Sun Condensing Gas 88.7%
ARCA PIXELfast 26 FCXR Condensing Gas 89.0%
ARCA PIXELfast 31 FC Condensing Gas 89.1%
ARCA PIXELfast 31 FC Sun Condensing Gas 89.1%
ARCA PIXELfast 31 FCR Condensing Gas 89.2%
ARCA PIXELfast B 25 FC Condensing Gas 89.8%
ARCA PIXELfast B 26 FCX Condensing Gas 88.7%
ARCA PIXELfast B 31 FC Condensing Gas 89.8%
Ariston ACO 27 MFFI Condensing Gas 88.7%
Ariston ACO 27 RFFI Condensing Gas 88.8%
Ariston ACO 32 MFFI Condensing Gas 88.9%
Ariston ACO 32 RFFI Condensing Gas 89.0%
Ariston ACO 35 HP MFFI ACO 35 HP MFFI Condensing Gas 88.9%
Ariston Clas 21 FF System Non-Condensing Gas 80.4%
Ariston Clas 24 FF Non-Condensing Gas 80.3%
Ariston Clas 28 FF System Non-Condensing Gas 80.4%
Ariston Clas HE 18 System Condensing Gas 89.3%
Ariston Clas HE 24 Condensing Gas 88.9%
Ariston Clas HE 24 System Condensing Gas 89.0%
Ariston Clas HE 30 Condensing Gas 88.9%
Ariston Clas HE 38 Condensing Gas 88.5%
Ariston Clas HE evo 24 Condensing Gas 88.7%
Ariston Clas HE evo 30 Condensing Gas 88.7%
Ariston Clas HE evo 38 Condensing Gas 88.7%
Ariston Clas HE R 12 Condensing Gas 89.1%
Ariston Clas HE R 18 Condensing Gas 89.3%
Ariston Clas HE R 24 Condensing Gas 89.0%
Ariston Clas HE System 30 Condensing Gas 89.0%
Ariston Clas HE System evo 18 Condensing Gas 88.8%
Ariston Clas HE System evo 24 Condensing Gas 88.8%
Ariston Clas HE System evo 30 Condensing Gas 88.8%
Ariston CLAS NET ONE 24 Condensing Gas 89.4%
Ariston CLAS NET ONE 30 Condensing Gas 89.4%
Ariston CLAS NET ONE 38 Condensing Gas 89.4%
Ariston CLAS ONE 24 Condensing Gas 89.4%
Ariston CLAS ONE 30 Condensing Gas 89.4%
Ariston CLAS ONE 38 Condensing Gas 89.4%
Ariston CLAS SYSTEM ONE 18 Condensing Gas 89.4%
Ariston CLAS SYSTEM ONE 24 Condensing Gas 89.5%
Ariston CLAS SYSTEM ONE 30 Condensing Gas 89.5%
Ariston Combi A 24 MFFI Combi A Condensing Gas 89.0%
Ariston Combi A 30 MFFI Combi A Condensing Gas 89.7%
Ariston E-Combi 24 Condensing Gas 88.9%
Ariston E-Combi 30 Condensing Gas 88.9%
Ariston E-Combi 38 Condensing Gas 88.5%
Ariston E-Combi evo 24 Condensing Gas 88.7%
Ariston E-Combi evo 30 Condensing Gas 88.7%
Ariston E-Combi evo 38 Condensing Gas 88.7%
Ariston E-COMBI ONE 24 Condensing Gas 89.4%
Ariston E-COMBI ONE 30 Condensing Gas 89.4%
Ariston E-System 24 Condensing Gas 89.0%
Ariston E-System 30 Condensing Gas 89.0%
Ariston E-System evo 24 Condensing Gas 88.8%
Ariston E-System evo 30 Condensing Gas 88.8%
Ariston E-SYSTEM ONE 24 Condensing Gas 89.5%
Ariston E-SYSTEM ONE 30 Condensing Gas 89.5%
Ariston Ecocombi 27 MFFI microCONDENS Series Condensing LPG 89.7%
Ariston Ecogenus 24 MFFI Condensing Gas 87.2%
Ariston Ecogenus 24 MFFI Mk2 Condensing Gas 88.2%
Ariston Ecogenus 24 RFFI System Condensing Gas 87.3%
Ariston Ecogenus 24 RFFI System Mk2 Condensing Gas 88.3%
Ariston Ecosystem 27 RFFI microCONDENS Series Condensing Gas 88.8%
Ariston Eurocombi A/23 MFFI Non-Condensing Gas 78.1%
Ariston Eurocombi A/27 MFFI Non-Condensing Gas 78.9%
Ariston Excalibur 23 MFFI Excalibur 80 MFFI Non-Condensing Gas 80.1%
Ariston Excalibur 27 MFFI Excalibur 100 MFFI Non-Condensing Gas 79.4%
Ariston Genus 27 BFFI Plus Non-Condensing Gas 78.1%
Ariston Genus 27 BFFI Plus Mk2 Non-Condensing Gas 80.0%
Ariston Genus 27 RFFI System Non-Condensing Gas 79.0%
Ariston Genus 30 MFFI Non-Condensing Gas 79.3%
Ariston Genus HE 24 Condensing Gas 88.9%
Ariston Genus HE 24 System Condensing Gas 89.0%
Ariston Genus HE 30 Condensing Gas 88.9%
Ariston Genus HE 38 Condensing Gas 88.5%
Ariston Genus HE System 30 Condensing Gas 89.0%
Ariston Genus Plus 30 BFFI Non-Condensing LPG 81.0%
Ariston Intesa TP 23 MFFI Non-Condensing Gas 80.2%
Ariston Intesa TP 30 MFFI Non-Condensing Gas 79.9%
Ariston Microcombi 23 MFFI Non-Condensing Gas 80.1%
Ariston Microcombi 27 MFFI Micro Combi Series Non-Condensing Gas 79.4%
Ariston Microcombi 27 MFFI MK2 Non-Condensing LPG 81.2%
Ariston Microgenus 23 MFFI Non-Condensing Gas 80.3%
Ariston Microgenus 24 HE MFFI Condensing Gas 86.6%
Ariston Microgenus 27 MFFI Non-Condensing Gas 80.2%
Ariston Microgenus 28 HE MFFI Condensing Gas 86.3%
Ariston Microgenus 32 HE MFFI Condensing Gas 86.5%
Ariston Microgenus II 24 MFFI Non-Condensing LPG 82.0%
Ariston Microgenus II 28 MFFI Non-Condensing LPG 81.4%
Ariston Microgenus II 31 MFFI Non-Condensing LPG 81.7%
Ariston Microsystem 10 RFFI Non-Condensing Gas 78.2%
Ariston Microsystem 15 RFFI Non-Condensing Gas 79.9%
Ariston Microsystem 21 RFFI Non-Condensing Gas 80.4%
Ariston Microsystem 28 RFFI Non-Condensing Gas 80.3%
ATAG A200S Condensing Gas 89.4%
ATAG A200S OV Condensing Gas 89.4%
ATAG A203C Condensing Gas 89.3%
ATAG A320S Condensing Gas 89.5%
ATAG A320S X Condensing Gas 89.8%
ATAG A325C Condensing Gas 89.4%
ATAG A325C X Condensing Gas 89.7%
ATAG A325EC Condensing Gas 89.2%
ATAG A325EC X Condensing Gas 89.7%
ATAG Blauwe Engel SHR 15 Condensing Gas 89.3%
ATAG Blauwe Engel SHR 24 Condensing Gas 89.3%
ATAG Blauwe Engel SHR 24T Condensing Gas 89.2%
ATAG Blauwe Engel SHR 35 Condensing Gas 89.0%
ATAG Blauwe Engel SHR 35T Condensing Gas 88.9%
ATAG Blauwe Engel SHR 51 Condensing Gas 89.2%
ATAG Blauwe Engel SHR 51 L Condensing Gas 89.0%
ATAG Blauwe Engel SHR 51 TL Condensing Gas 89.0%
ATAG Blauwe Engel SHR 51T Condensing Gas 89.1%
ATAG Blauwe Engel SHR 60 Condensing Gas 89.0%
ATAG E22C Condensing Gas 89.4%
ATAG E22S Condensing Gas 89.5%
ATAG E32C Condensing Gas 89.4%
ATAG E32S Condensing Gas 89.5%
ATAG iC Economiser 27 Condensing Gas 89.7%
ATAG iC Economiser 35 Condensing Gas 89.7%
ATAG iC Economiser 39 Condensing Gas 89.7%
ATAG iC24 Condensing Gas 89.7%
ATAG IC24LPG Condensing LPG 90.7%
ATAG iC28 Condensing Gas 89.7%
ATAG IC28LPG Condensing LPG 90.7%
ATAG iC36 Condensing Gas 89.7%
ATAG IC36LPG Condensing LPG 90.8%
ATAG iC40 Condensing Gas 89.7%
ATAG IC40LPG Condensing LPG 90.8%
ATAG iR15 Condensing Gas 89.8%
ATAG IR15LPG Condensing LPG 90.8%
ATAG iR18 Condensing Gas 89.8%
ATAG IR18LPG Condensing LPG 90.8%
ATAG iR24 Condensing Gas 89.8%
ATAG IR24LPG Condensing LPG 90.8%
ATAG iR32 Condensing Gas 89.8%
ATAG IR32LPG Condensing LPG 90.9%
ATAG iR40 Condensing Gas 89.8%
ATAG IR40LPG Condensing LPG 90.8%
ATAG iS15 Condensing Gas 89.8%
ATAG IS15LPG Condensing LPG 90.8%
ATAG iS18 Condensing Gas 89.8%
ATAG IS18LPG Condensing LPG 90.8%
ATAG iS24 Condensing Gas 89.8%
ATAG IS24LPG Condensing LPG 90.8%
ATAG iS32 Condensing Gas 89.8%
ATAG IS32LPG Condensing LPG 90.9%
ATAG iS40 Condensing Gas 89.8%
ATAG IS40LPG Condensing LPG 90.8%
ATAG Premier E-SHR 24 Condensing Gas 89.0%
ATAG Premier E-SHR 24T Condensing Gas 89.3%
ATAG Premier E-SHR 35 Condensing Gas 89.0%
ATAG Premier E-SHR 35T Condensing Gas 88.9%
ATAG Premier E-SHR15 Condensing Gas 89.3%
ATAG Q25C Condensing Gas 89.3%
ATAG Q25S Condensing Gas 89.6%
ATAG Q25SC Condensing Gas 89.6%
ATAG Q38C Condensing Gas 89.3%
ATAG Q38S Condensing Gas 89.4%
ATAG Q38SC Condensing Gas 89.4%
ATAG Q51C Condensing Gas 89.4%
ATAG Q51S Condensing Gas 89.5%
ATAG Q60S Condensing Gas 89.5%
ATAG XL70 Condensing Gas 89.5%
Atlantic 2000 R22/22 Oil Condensing Oil 91.0%
Atlantic 2000 R22/40 Oil Condensing Oil 91.1%
Atlantic Boilers KDB 181 KCA Condensing Gas 88.9%
Atlantic Boilers KDB 201 KCA Condensing Gas 88.7%
Atlantic Boilers KDB 251 KCA Condensing Gas 88.8%
Atlantic Boilers KDB 301 KCA Condensing Gas 89.0%
Atlantic Boilers KDB-200NHC Condensing Oil 89.4%
Atlantic Boilers KDB-350NHC Condensing Oil 89.3%
Atmos Atmos Compact Boiler N30C Condensing Gas 89.4%
Atmos Atmos Compact Combi N30K Condensing Gas 89.3%
Atmos Atmos Compact System Boiler N30B Condensing Gas 89.4%
Atmos InterCombi HE32 Condensing Gas 88.9%
Atmos Multi 24/80 Condensing Gas 89.6%
Atmos Multi 24/80 Plus Condensing Gas 89.6%
Atmos Multi 32/80 Condensing Gas 89.5%
Atmos Multi 32/80 Plus Condensing Gas 89.5%
Baxi 100 HE Condensing Gas 89.6%
Baxi 100/2 HE Plus Condensing Gas 88.8%
Baxi 124 COMBI Condensing Gas 89.1%
Baxi 128 COMBI Condensing Gas 89.1%
Baxi 200 224 COMBI Condensing Gas 89.0%
Baxi 200 228 COMBI Condensing Gas 89.0%
Baxi 400 424 COMBI Condensing Gas 89.0%
Baxi 400 428 COMBI Condensing Gas 89.0%
Baxi 50 HE Plus Condensing Gas 89.4%
Baxi 624 Combi Condensing Gas 89.0%
Baxi 630 Combi Condensing Gas 89.0%
Baxi 80 HE Plus Condensing Gas 89.6%
Baxi Avanta 15h Heat Only Condensing Gas 88.9%
Baxi Avanta 18 h Heat Only Condensing Gas 89.2%
Baxi Avanta 18h Heat Only Condensing LPG 90.3%
Baxi Avanta 24h Heat Only Condensing Gas 88.9%
Baxi Avanta 28c Exclusive Condensing Gas 89.2%
Baxi Avanta 30h Heat Only Condensing Gas 88.9%
Baxi Avanta 35c Exclusive Condensing Gas 89.6%
Baxi Avanta 39c Exclusive Condensing Gas 89.8%
Baxi Avanta Plus 18s system Condensing Gas 88.8%
Baxi Avanta Plus 24c Combi Condensing Gas 88.7%
Baxi Avanta Plus 24s System Condensing Gas 89.2%
Baxi Avanta Plus 28c Combi Condensing Gas 89.1%
Baxi Avanta Plus 30s system Condensing Gas 88.9%
Baxi Avanta Plus 35c Combi Condensing Gas 89.5%
Baxi Avanta Plus 39c Combi Condensing Gas 89.7%
Baxi Bermuda 50/6 Inset Non-Condensing Gas 78.1%
Baxi Bermuda 51/5 Non-Condensing Gas 78.0%
Baxi Bermuda BBU 15 HE Condensing Gas 88.8%
Baxi Combi 100 HE Plus Condensing Gas 89.4%
Baxi Combi 105 e Non-Condensing Gas 78.5%
Baxi Combi 105 HE Condensing LPG 86.9%
Baxi Combi 105 HE A Condensing Gas 88.7%
Baxi Combi 133 HE Plus Condensing Gas 88.7%
Baxi Combi 80 e Non-Condensing Gas 78.6%
Baxi Combi 80 Eco Non-Condensing Gas 78.6%
Baxi Combi 80 HE Plus Condensing Gas 89.4%
Baxi Combi 80 Maxflue Non-Condensing Gas 78.5%
Baxi Combi Instant 105 e Non-Condensing Gas 78.5%
Baxi Combi Instant 105 HE Condensing LPG 86.9%
Baxi Combi Instant 80 e Non-Condensing Gas 78.6%
Baxi Combi Instant 80 HE Condensing LPG 86.8%
Baxi Duo-tec 2 Combi 24 Condensing Gas 89.0%
Baxi Duo-tec 2 Combi 24 GA Condensing Gas 89.0%
Baxi Duo-tec 2 Combi 28 Condensing Gas 89.0%
Baxi Duo-tec 2 Combi 28 Compact Condensing Gas 89.0%
Baxi Duo-tec 2 Combi 28 GA Condensing Gas 89.0%
Baxi Duo-tec 2 Combi 33 GA Condensing Gas 89.0%
Baxi Duo-tec 2 Combi 40 Condensing Gas 89.0%
Baxi Duo-tec 2 Combi 40 GA Condensing Gas 89.0%
Baxi Duo-tec 24 Combi ErP Condensing Gas 88.6%
Baxi Duo-tec 28 Combi ErP Condensing Gas 88.6%
Baxi DUO-TEC 28 LPG COMBI ErP Condensing LPG 89.6%
Baxi Duo-tec 33 Combi ErP Condensing Gas 88.5%
Baxi Duo-tec 40 Combi ErP Condensing Gas 88.5%
Baxi Duo-tec Combi 24 HE Condensing Gas 88.6%
Baxi Duo-tec Combi 24 HE A Condensing Gas 89.0%
Baxi Duo-tec Combi 24 HE LPG Condensing LPG 91.0%
Baxi Duo-tec Combi 28 HE Condensing Gas 88.6%
Baxi Duo-tec Combi 28 HE A Condensing Gas 89.0%
Baxi Duo-tec Combi 28 HE LPG Condensing LPG 91.0%
Baxi Duo-tec Combi 33 HE Condensing Gas 88.5%
Baxi Duo-tec Combi 33 HE A Condensing Gas 88.9%
Baxi Duo-tec Combi 33 HE LPG Condensing LPG 90.9%
Baxi Duo-tec Combi 40 HE Condensing Gas 88.5%
Baxi Duo-tec Combi 40 HE A Condensing Gas 88.9%
Baxi Ecoblue + 24 Combi ErP Condensing Gas 89.1%
Baxi Ecoblue + 28 Combi ErP Condensing Gas 89.1%
Baxi Ecoblue + 33 Combi ErP Condensing Gas 89.1%
Baxi EcoBlue 12 Heat ErP Condensing Gas 89.2%
Baxi Ecoblue 12 System Condensing Gas 89.2%
Baxi Ecoblue 12 System ErP Condensing Gas 89.3%
Baxi EcoBlue 15 Heat ErP Condensing Gas 89.2%
Baxi Ecoblue 15 System Condensing Gas 89.1%
Baxi Ecoblue 15 System ErP Condensing Gas 89.2%
Baxi EcoBlue 18 Heat ErP Condensing Gas 89.2%
Baxi Ecoblue 18 System Condensing Gas 89.1%
Baxi EcoBlue 21 Heat ErP Condensing Gas 89.2%
Baxi Ecoblue 24 Combi Condensing Gas 89.0%
Baxi Ecoblue 24 Combi ErP Condensing Gas 89.1%
Baxi EcoBlue 24 Heat ErP Condensing Gas 89.1%
Baxi Ecoblue 24 System Condensing Gas 89.1%
Baxi Ecoblue 24 System ErP Condensing Gas 89.2%
Baxi Ecoblue 28 Combi Condensing Gas 89.0%
Baxi Ecoblue 28 Combi ErP Condensing Gas 89.1%
Baxi Ecoblue 28 System Condensing Gas 89.1%
Baxi Ecoblue 28 System ErP Condensing Gas 89.2%
Baxi Ecoblue 32 System Condensing Gas 89.1%
Baxi Ecoblue 32 System ErP Condensing Gas 89.2%
Baxi Ecoblue 33 Combi Condensing Gas 89.0%
Baxi EcoBlue Advance 13 Heat ErP Condensing Gas 89.2%
Baxi EcoBlue Advance 16 Heat ErP Condensing Gas 89.2%
Baxi EcoBlue Advance 19 Heat ErP Condensing Gas 89.2%
Baxi EcoBlue Advance 21 Heat ErP Condensing Gas 89.1%
Baxi Ecoblue Advance 24 Combi Condensing Gas 89.0%
Baxi Ecoblue Advance 24 Combi ErPD Condensing Gas 89.1%
Baxi EcoBlue Advance 25 Heat ErP Condensing Gas 89.1%
Baxi Ecoblue Advance 28 Combi Condensing Gas 89.0%
Baxi Ecoblue Advance 28 Combi ERP Condensing Gas 89.0%
Baxi Ecoblue Advance 28 Combi ErPD Condensing Gas 89.1%
Baxi EcoBlue Advance 30 Heat ErP Condensing Gas 89.1%
Baxi Ecoblue Advance 33 Combi Condensing Gas 89.0%
Baxi Ecoblue Advance 33 Combi ERP Condensing Gas 89.0%
Baxi Ecoblue Advance 33 Combi ErPD Condensing Gas 89.1%
Baxi Ecoblue Advance 40 Combi Condensing Gas 89.0%
Baxi Ecoblue Advance 40 Combi ErPD Condensing Gas 89.1%
Baxi EcoBlue Advance Heat 13 Condensing Gas 89.2%
Baxi EcoBlue Advance Heat 16 Condensing Gas 89.2%
Baxi EcoBlue Advance Heat 19 Condensing Gas 89.2%
Baxi EcoBlue Advance Heat 25 Condensing Gas 89.1%
Baxi EcoBlue Advance Heat 30 Condensing Gas 89.1%
Baxi EcoBlue Heat 12 Condensing Gas 89.2%
Baxi EcoBlue Heat 15 Condensing Gas 89.2%
Baxi EcoBlue Heat 18 Condensing Gas 89.2%
Baxi EcoBlue Heat 21 Condensing Gas 89.2%
Baxi EcoBlue Heat 24 Condensing Gas 89.1%
Baxi Ecoblue Plus 24 Combi Condensing Gas 89.0%
Baxi Ecoblue Plus 28 Combi Condensing Gas 89.0%
Baxi Ecoblue Plus 33 Combi Condensing Gas 89.0%
Baxi Ecoblue18 System ErP Condensing Gas 89.2%
Baxi Ecoblue33 Combi ErP Condensing Gas 89.1%
Baxi Heating Bahama 100 Non-Condensing Gas 79.5%
Baxi Heating Barcelona Condensing Gas 88.3%
Baxi Heating Bermuda 25/1 Non-Condensing Gas 65.0%
Baxi Heating Bermuda 401 Non-Condensing Gas 65.0%
Baxi Heating Bermuda 45/3E Non-Condensing Gas 65.0%
Baxi Heating Bermuda 45/3M Non-Condensing Gas 65.0%
Baxi Heating Bermuda 45/4E Non-Condensing Gas 76.8%
Baxi Heating Bermuda 45/4M Non-Condensing Gas 72.7%
Baxi Heating Bermuda 551 Non-Condensing Gas 65.0%
Baxi Heating Bermuda 552 Non-Condensing Gas 65.0%
Baxi Heating Bermuda 57/3E Non-Condensing Gas 65.0%
Baxi Heating Bermuda 57/3M Non-Condensing Gas 65.0%
Baxi Heating Bermuda 57/4E Non-Condensing Gas 75.8%
Baxi Heating Bermuda 57/4M Non-Condensing Gas 71.8%
Baxi Heating Bermuda Inset 2 50/4 Non-Condensing Gas 72.0%
Baxi Heating Boston 2 40 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 2 40 RS Non-Condensing Gas 55.0%
Baxi Heating Boston 2 50 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 2 50 RS Non-Condensing Gas 55.0%
Baxi Heating Boston 2 60 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 2 60 RS Non-Condensing Gas 55.0%
Baxi Heating Boston 2 70 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 2 70 RS Non-Condensing Gas 55.0%
Baxi Heating Boston 2 80 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 2 80 RS Non-Condensing Gas 55.0%
Baxi Heating Boston 40 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 40 RS Non-Condensing Gas 55.0%
Baxi Heating Boston 50 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 50 RS Non-Condensing Gas 55.0%
Baxi Heating Boston 60 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 60 RS Non-Condensing Gas 55.0%
Baxi Heating Boston 70 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 70 RS Non-Condensing Gas 55.0%
Baxi Heating Boston 80 OF Non-Condensing Gas 55.0%
Baxi Heating Boston 80 RS Non-Condensing Gas 55.0%
Baxi Heating FF40 from Potterton Non-Condensing Gas 71.8%
Baxi Heating FF50 from Potterton Non-Condensing Gas 75.4%
Baxi Heating FF60 from Potterton Non-Condensing Gas 75.1%
Baxi Heating FF80 from Potterton Non-Condensing Gas 74.4%
Baxi Heating Genesis 80 Non-Condensing Gas 70.0%
Baxi Heating Genesis 96 Non-Condensing Gas 70.0%
Baxi Heating Solo 2 30 PF Non-Condensing Gas 68.0%
Baxi Heating Solo 2 30 RS Non-Condensing Gas 65.0%
Baxi Heating Solo 2 40 PF Non-Condensing Gas 68.0%
Baxi Heating Solo 2 40 RS Non-Condensing Gas 65.0%
Baxi Heating Solo 2 50 PF Non-Condensing Gas 68.0%
Baxi Heating Solo 2 50 RS Non-Condensing Gas 65.0%
Baxi Heating Solo 2 60 PF Non-Condensing Gas 68.0%
Baxi Heating Solo 2 60 RS Non-Condensing Gas 65.0%
Baxi Heating Solo 2 70 PF Non-Condensing Gas 68.0%
Baxi Heating Solo 2 80 PF Non-Condensing Gas 68.0%
Baxi Heating Solo 20/4 RS Non-Condensing Gas 65.0%
Baxi Heating Solo 20/4 RS SS Non-Condensing Gas 65.0%
Baxi Heating Solo 30/4 RS Non-Condensing Gas 65.0%
Baxi Heating Solo 30/4 RS SS Non-Condensing Gas 65.0%
Baxi Heating Solo 40/4 RS Non-Condensing Gas 65.0%
Baxi Heating Solo 40/4 RS SS Non-Condensing Gas 65.0%
Baxi Heating Solo 50/4 RS Non-Condensing Gas 65.0%
Baxi Heating Solo 50/4 RS SS Non-Condensing Gas 65.0%
Baxi Heating Solo 60/4 RS Non-Condensing Gas 65.0%
Baxi Heating Solo 60/4 RS SS Non-Condensing Gas 65.0%
Baxi Heating Solo PF 3 30 Non-Condensing Gas 78.8%
Baxi Heating Solo PF 3 40 Non-Condensing Gas 77.8%
Baxi Heating Solo PF 3 50 Non-Condensing Gas 76.7%
Baxi Heating Solo PF 3 60 Non-Condensing Gas 77.8%
Baxi Heating Solo PF 3 70 Non-Condensing Gas 77.7%
Baxi Heating Solo PF 3 80 Non-Condensing Gas 77.8%
Baxi Heating Solo WM 30/4 PF Non-Condensing Gas 68.0%
Baxi Heating Solo WM 40/4 PF Non-Condensing Gas 68.0%
Baxi Heating Solo WM 50/4 PF Non-Condensing Gas 68.0%
Baxi Heating Solo WM 70/4 PF Non-Condensing Gas 68.0%
Baxi Heating Wm 20/3rs Non-Condensing Gas 65.0%
Baxi Heating Wm 281rs Non-Condensing Gas 65.0%
Baxi Heating Wm 282rs Non-Condensing Gas 65.0%
Baxi Heating Wm 38/3 Non-Condensing Gas 65.0%
Baxi Heating Wm 381rs Non-Condensing Gas 65.0%
Baxi Heating Wm 382rs Non-Condensing Gas 65.0%
Baxi Heating Wm 40/3of Non-Condensing Gas 65.0%
Baxi Heating Wm 401of Non-Condensing Gas 65.0%
Baxi Heating Wm 402of Non-Condensing Gas 65.0%
Baxi Heating Wm 51/3 Non-Condensing Gas 65.0%
Baxi Heating Wm 511rs Non-Condensing Gas 65.0%
Baxi Heating Wm 512rs Non-Condensing Gas 65.0%
Baxi Heating Wm 532rs Non-Condensing Gas 65.0%
Baxi Heating Wm 55/3of Non-Condensing Gas 65.0%
Baxi Heating Wm 551of Non-Condensing Gas 65.0%
Baxi Heating Wm 552of Non-Condensing Gas 65.0%
Baxi Heating Wm 60/3rs Non-Condensing Gas 65.0%
Baxi MainEco 15 Heat ErP Condensing Gas 89.2%
Baxi MainEco 18 Heat ErP Condensing Gas 89.2%
Baxi MainEco 24 Heat ErP Condensing Gas 89.1%
Baxi MainEco Combi 24 Condensing Gas 89.3%
Baxi MainEco Combi 28 Condensing Gas 89.2%
Baxi MainEco Combi 35 Condensing Gas 89.0%
Baxi MainEco Heat 15 Condensing Gas 89.2%
Baxi MainEco Heat 18 Condensing Gas 89.2%
Baxi MainEco Heat 24 Condensing Gas 89.1%
Baxi MainEco System 18 Condensing Gas 89.4%
Baxi MainEco System 24 Condensing Gas 89.3%
Baxi Maxflow Combi FS Non-Condensing Gas 78.9%
Baxi Maxflow Combi WM Non-Condensing Gas 79.0%
Baxi Megaflo 15 System ErP Condensing Gas 88.7%
Baxi Megaflo 15 System IE ErP Condensing Gas 88.7%
Baxi Megaflo 18 System ErP Condensing Gas 88.7%
Baxi Megaflo 18 System IE ErP Condensing Gas 88.7%
Baxi Megaflo 2 System 12 Compact GA Condensing Gas 89.2%
Baxi Megaflo 2 System 15 Compact GA Condensing Gas 89.1%
Baxi Megaflo 2 System 18 Compact GA Condensing Gas 88.9%
Baxi Megaflo 2 System 24 Compact GA Condensing Gas 89.1%
Baxi Megaflo 2 System 28 Compact GA Condensing Gas 89.1%
Baxi Megaflo 2 System 32 Compact GA Condensing Gas 89.1%
Baxi Megaflo 24 System ErP Condensing Gas 88.7%
Baxi Megaflo 24 System IE ErP Condensing Gas 88.7%
Baxi Megaflo 28 System ErP Condensing Gas 88.6%
Baxi Megaflo 32 System ErP Condensing Gas 88.6%
Baxi Megaflo System 15 HE Condensing Gas 88.7%
Baxi Megaflo System 15 HE A Condensing Gas 89.0%
Baxi Megaflo System 18 HE Condensing Gas 88.7%
Baxi Megaflo System 18 HE A Condensing Gas 89.0%
Baxi Megaflo System 18 HE LPG Condensing LPG 91.1%
Baxi Megaflo System 24 HE Condensing Gas 88.7%
Baxi Megaflo System 24 HE A Condensing Gas 89.0%
Baxi Megaflo System 28 HE Condensing Gas 88.6%
Baxi Megaflo System 28 HE A Condensing Gas 89.0%
Baxi Megaflo System 28 HE LPG Condensing LPG 91.0%
Baxi Megaflo System 32 HE Condensing Gas 88.6%
Baxi Megaflo System 32 HE A Condensing Gas 89.0%
Baxi Megaflo System 32 HE LPG Condensing LPG 91.0%
Baxi Megaflow 2 System 24 Compact Condensing Gas 89.1%
Baxi Neta-tec Combi 24 GA Condensing Gas 89.0%
Baxi Neta-tec Combi 28 GA Condensing Gas 89.0%
Baxi Neta-tec Combi 33 GA Condensing Gas 89.0%
Baxi Neta-tec Plus 24 GA Condensing Gas 89.0%
Baxi Neta-tec Plus 28 GA Condensing Gas 89.0%
Baxi Neta-tec Plus 33 GA Condensing Gas 89.0%
Baxi Platinum 15 HE Condensing Gas 89.4%
Baxi Platinum 2 Combi 28 GA Condensing Gas 89.0%
Baxi Platinum 2 Combi 33 GA Condensing Gas 89.0%
Baxi Platinum 2 Combi 40 GA Condensing Gas 89.0%
Baxi Platinum 24 Combi ErP Condensing Gas 88.6%
Baxi Platinum 24 HE Condensing Gas 88.6%
Baxi Platinum 28 Combi ErP Condensing Gas 88.6%
Baxi Platinum 28 HE Condensing Gas 88.6%
Baxi Platinum 33 Combi ErP Condensing Gas 88.5%
Baxi Platinum 33 HE Condensing Gas 88.5%
Baxi Platinum 40 Combi ErP Condensing Gas 88.5%
Baxi Platinum Combi 24 HE Condensing Gas 88.6%
Baxi Platinum Combi 24 HE A Condensing Gas 89.0%
Baxi Platinum Combi 28 HE Condensing Gas 88.6%
Baxi Platinum Combi 28 HE A Condensing Gas 89.0%
Baxi Platinum Combi 33 HE Condensing Gas 88.5%
Baxi Platinum Combi 33 HE A Condensing Gas 88.9%
Baxi Platinum Combi 40 HE Condensing Gas 88.5%
Baxi Platinum Combi 40 HE A Condensing Gas 88.9%
Baxi Platinum System 24 HE Condensing Gas 88.7%
Baxi Potterton Baxi Bermuda Inset 2 50/4E Non-Condensing Gas 77.5%
Baxi Potterton Baxi Bermuda Inset 3 50/5 Non-Condensing Gas 77.0%
Baxi Potterton Baxi Combi 130 HE Condensing Gas 88.7%
Baxi Potterton Potterton Promax 15 HE Condensing Gas 89.4%
Baxi Potterton Potterton Promax 24 HE Condensing Gas 89.5%
Baxi Potterton Potterton Promax System HE Condensing Gas 89.6%
Baxi Precision + Condensing Gas 89.2%
Baxi Precision+ ErP Condensing Gas 89.2%
Baxi Solo 12 HE Condensing Gas 88.7%
Baxi Solo 12 HE A Condensing Gas 88.7%
Baxi Solo 12 Heat IE ErP Condensing Gas 88.7%
Baxi Solo 15 HE Condensing Gas 89.4%
Baxi Solo 15 HE A Condensing Gas 89.4%
Baxi Solo 15 Heat IE ErP Condensing Gas 89.4%
Baxi Solo 18 HE Condensing Gas 88.7%
Baxi Solo 18 HE A Condensing Gas 88.7%
Baxi Solo 18 Heat IE ErP Condensing Gas 88.7%
Baxi Solo 24 HE Condensing Gas 88.8%
Baxi Solo 24 HE A Condensing Gas 88.8%
Baxi Solo 24 Heat IE ErP Condensing Gas 88.8%
Baxi Solo 3 PFL 30 Non-Condensing Gas 79.4%
Baxi Solo 3 PFL 40 Non-Condensing Gas 78.4%
Baxi Solo 3 PFL 50 Non-Condensing Gas 78.0%
Baxi Solo 3 PFL 60 Non-Condensing Gas 78.5%
Baxi Solo 3 PFL 70 Non-Condensing Gas 78.2%
Baxi Solo 3 PFL 80 Non-Condensing Gas 79.1%
Baxi Solo 3 PFL System 30 Non-Condensing Gas 79.4%
Baxi Solo 3 PFL System 40 Non-Condensing Gas 78.4%
Baxi Solo 3 PFL System 50 Non-Condensing Gas 78.0%
Baxi Solo 3 PFL System 60 Non-Condensing Gas 78.5%
Baxi Solo 3 PFL System 70 Non-Condensing Gas 78.2%
Baxi Solo 3 PFL System 80 Non-Condensing Gas 78.7%
Baxi Solo 30 HE Condensing Gas 88.8%
Baxi Solo 30 HE A Condensing Gas 88.8%
Baxi Solo 30 Heat IE ErP Condensing Gas 88.8%
Baxi System 100 HE Plus Condensing Gas 88.8%
Baxi System 35/60 Non-Condensing Gas 78.8%
Baxi System 60/100 Non-Condensing Gas 78.2%
Beeston Solution 2000 S-HR15 Condensing Gas 89.3%
Beeston Solution 2000 S-HR24 Condensing Gas 89.3%
Beeston Solution 2000 S-HR24T Condensing Gas 89.3%
Beeston Solution 2000 S-HR35 Condensing Gas 89.0%
Beeston Solution 2000 S-HR35T Condensing Gas 88.9%
Beeston Solution 2000 S-HR51 Condensing Gas 89.2%
Beeston Solution 2000 S-HR51T Condensing Gas 89.1%
Beeston Solution 2000 S-HR60 Condensing Gas 89.0%
Benson Heating Halstead Jetstreme 125 Non-Condensing Oil 82.2%
Benson Heating Halstead Jetstreme 55 Non-Condensing Oil 84.2%
Benson Heating Halstead Jetstreme 80 Non-Condensing Oil 82.7%
Biasi 24S Non-Condensing Gas 78.3%
Biasi 24SR Non-Condensing Gas 78.4%
Biasi 28S Non-Condensing Gas 78.5%
Biasi Activ A 12OV Condensing Gas 88.4%
Biasi Activ A 15OV Condensing Gas 88.4%
Biasi Activ A 20OV Condensing Gas 88.9%
Biasi Activ A 25OV Condensing Gas 88.7%
Biasi Activ A Plus 16S Condensing LPG 89.7%
Biasi Activ A Plus 25S Condensing LPG 89.8%
Biasi Activ A Plus 30C Condensing LPG 89.6%
Biasi Activ A Plus 35C Condensing LPG 89.6%
Biasi ActivA 18S Condensing Gas 88.7%
Biasi ActivA 25C Condensing Gas 88.8%
Biasi ActivA 25S Condensing Gas 88.7%
Biasi ActivA 30C Condensing Gas 88.6%
Biasi ActivA 30S Condensing Gas 88.9%
Biasi ActivA 35C Condensing Gas 88.8%
Biasi ActivA Plus 25C Condensing Gas 88.7%
Biasi ADVANCE 25C Condensing Gas 88.5%
Biasi ADVANCE 25S Condensing Gas 88.7%
Biasi ADVANCE 30C Condensing Gas 88.6%
Biasi ADVANCE 30S Condensing Gas 88.7%
Biasi ADVANCE 35C Condensing Gas 88.6%
Biasi Advance Plus 16S Condensing Gas 88.7%
Biasi Advance Plus 16S ErP Condensing Gas 88.7%
Biasi Advance Plus 25C Condensing Gas 88.7%
Biasi Advance Plus 25C ErP Condensing Gas 88.7%
Biasi Advance Plus 25S Condensing Gas 88.8%
Biasi Advance Plus 25S ErP Condensing Gas 88.8%
Biasi Advance Plus 30C Condensing Gas 88.6%
Biasi Advance Plus 30C ErP Condensing Gas 88.6%
Biasi Advance Plus 30S Condensing Gas 88.7%
Biasi Advance Plus 30S ErP Condensing Gas 88.7%
Biasi Advance Plus 35C Condensing Gas 88.6%
Biasi Advance Plus 35C ErP Condensing Gas 88.6%
Biasi ALNOVIA 18R Condensing Gas 89.1%
Biasi ALNOVIA 18S Condensing Gas 89.0%
Biasi ALNOVIA 28R Condensing Gas 89.2%
Biasi ALNOVIA 28S Condensing Gas 89.1%
Biasi Garda HE M96.24SM/B Condensing LPG 86.8%
Biasi Garda HE M96.24SM/B2 Condensing Gas 86.4%
Biasi Garda HE M96.28SM/B Condensing LPG 86.7%
Biasi Garda HE M96.28SM/B2 Condensing Gas 86.5%
Biasi Garda HE M96.28SM/D2 Condensing Gas 86.5%
Biasi Garda HE Silver M96.24SM/D Condensing LPG 86.8%
Biasi Garda HE Silver M96.24SM/D2 Condensing Gas 86.4%
Biasi Garda HE Silver M96.28SM/D Condensing LPG 86.7%
Biasi Garda M90F. 24S Non-Condensing Gas 78.2%
Biasi Garda M90F. 24SR Non-Condensing Gas 78.3%
Biasi Garda M90F. 28S Non-Condensing Gas 78.3%
Biasi Garda M90F. 28SR Non-Condensing Gas 78.4%
Biasi Garda M90F. 32S Non-Condensing Gas 78.3%
Biasi Garda Plus HE M110.24SM/E Condensing Gas 88.4%
Biasi Garda Plus HE M110.32SM/E Condensing Gas 88.4%
Biasi Garda Plus HE M110B.24SM/E Condensing LPG 90.1%
Biasi Garda Plus HE M110B.32SM/E Condensing LPG 89.5%
Biasi Garda Plus HE Silver M110.24SM/D Condensing Gas 88.4%
Biasi Garda Plus HE Silver M110.32SM/D Condensing Gas 88.4%
Biasi Inovia 25C Condensing Gas 88.7%
Biasi Inovia 25C ErP Condensing Gas 88.7%
Biasi Inovia 25S Condensing Gas 88.8%
Biasi Inovia 25S ErP Condensing Gas 88.8%
Biasi Inovia 30C Condensing Gas 88.6%
Biasi Inovia 30C ErP Condensing Gas 88.6%
Biasi Inovia 35C Condensing Gas 88.6%
Biasi Inovia 35C ErP Condensing Gas 88.6%
Biasi Parva HE Combi M96.24SM/P Condensing LPG 86.8%
Biasi Parva HE Combi M96.28SM/P Condensing LPG 86.9%
Biasi Parva HE Combi M96.32SM/P Condensing LPG 88.0%
Biasi Parva HE System M96.28SR/P Condensing LPG 87.0%
Biasi Parva HE System M96.32SR/P Condensing LPG 88.1%
Biasi Parva HE Systen M96.28SR/P Condensing Gas 86.6%
Biasi Parva M90 24S Non-Condensing Gas 78.2%
Biasi Parva M90 28S Non-Condensing Gas 78.3%
Biasi Riva 18 OV Condensing Gas 89.1%
Biasi Riva 24S Non-Condensing Gas 78.3%
Biasi Riva 24SR Non-Condensing Gas 78.4%
Biasi Riva 28S Non-Condensing Gas 78.5%
Biasi Riva 30 OV Condensing Gas 89.3%
Biasi Riva Advance HE M110.24SM/C Condensing Gas 88.4%
Biasi Riva Advance HE M110.32SM/C Condensing Gas 88.4%
Biasi Riva Advance HE M110B.24SM/C Condensing LPG 90.1%
Biasi Riva Advance HE M110B.24SR/C Condensing Gas 89.2%
Biasi Riva Advance HE M110B.32SM/C Condensing LPG 89.5%
Biasi Riva Compact HE M96.24SM/C Condensing LPG 86.8%
Biasi Riva Compact HE M96.24SM/C2 Condensing Gas 86.4%
Biasi Riva Compact HE M96.28SM/C Condensing LPG 86.7%
Biasi Riva Compact HE M96.28SM/C2 Condensing Gas 86.5%
Biasi Riva Compact HE M96.28SR/C Condensing LPG 86.8%
Biasi Riva Compact HE M96.28SR/C2 Condensing Gas 86.6%
Biasi Riva Compact HE M96.32SM/C2 Condensing Gas 86.1%
Biasi Riva Compact M90E. 24S Non-Condensing LPG 80.0%
Biasi Riva Compact M90E. 28S Non-Condensing LPG 80.1%
Biasi Riva Compact M90E. 32S Non-Condensing Gas 78.3%
Biasi Riva Compact M90E.24S Non-Condensing Gas 78.2%
Biasi Riva Compact M90E.28S Non-Condensing Gas 78.3%
Biasi Riva Plus HE 24C ErP Condensing Gas 88.0%
Biasi Riva Plus HE 24S ErP Condensing Gas 88.1%
Biasi Riva Plus HE 28C ErP Condensing Gas 88.0%
Biasi Riva Plus HE 28S ErP Condensing Gas 88.1%
Biasi Riva Plus HE M296.24SM/C Condensing Gas 88.0%
Biasi Riva Plus HE M296.24SR/C Condensing Gas 88.1%
Biasi Riva Plus HE M296.28SM/C Condensing Gas 88.0%
Biasi Riva Plus HE M296.28SR/C Condensing Gas 88.1%
Biasi Riva Plus M90D. 24S Non-Condensing LPG 80.0%
Biasi Riva Plus M90D. 24SR Non-Condensing LPG 80.1%
Biasi Riva Plus M90D. 28S Non-Condensing LPG 80.1%
Biasi Riva Plus M90D. 28SR Non-Condensing LPG 80.2%
Biasi Riva Plus M90D.24S Non-Condensing Gas 78.2%
Biasi Riva Plus M90D.24SR Non-Condensing Gas 78.3%
Biasi Riva Plus M90D.28S Non-Condensing Gas 78.3%
Biasi Riva Plus M90D.28SR Non-Condensing Gas 78.4%
Biasi Savio Gaia 424S Non-Condensing Gas 78.3%
Biasi Savio Gaia 428S Non-Condensing Gas 78.5%
Biasi Savio Knightsbridge 424S Non-Condensing Gas 78.3%
Biasi Savio Knightsbridge 428S Non-Condensing Gas 78.5%
Boulter Bonus 40/65 Non-Condensing Oil 85.5%
Boulter Bonus 65/90A Non-Condensing Oil 85.0%
Boulter Bonus 65/95 Non-Condensing Oil 83.5%
Boulter Bonus Combi 90A Non-Condensing Oil 82.5%
Boulter Buderus 500 – 24S Condensing Gas 89.7%
Boulter Buderus 500-24/C Condensing Gas 89.6%
Boulter Buderus 500-24/CP Condensing LPG 90.6%
Boulter Buderus 500-24SP Condensing LPG 90.7%
Boulter Buderus 500-28C Condensing Gas 89.6%
Boulter Buderus 500-28CP Condensing LPG 90.6%
Boulter Buderus 600-11RP Condensing LPG 90.3%
Boulter Buderus 600-11SP Condensing LPG 90.8%
Boulter Buderus 600-19RP Condensing LPG 90.3%
Boulter Buderus 600-19SP Condensing LPG 90.3%
Boulter Buderus 600-24CP Condensing LPG 90.2%
Boulter Buderus 600-24RP Condensing LPG 90.2%
Boulter Buderus 600-24SP Condensing LPG 90.2%
Boulter Buderus 600/11R Condensing Gas 89.3%
Boulter Buderus 600/11S Condensing Gas 89.3%
Boulter Buderus 600/19R Condensing Gas 89.3%
Boulter Buderus 600/19S Condensing Gas 89.3%
Boulter Buderus 600/24C Condensing Gas 89.1%
Boulter Buderus 600/24R Condensing Gas 89.2%
Boulter Buderus 600/24S Condensing Gas 89.2%
Boulter Buderus 800-24P Condensing LPG 89.5%
Boulter Buderus 800-24T25/H Condensing Gas 88.9%
Boulter Buderus 800-24T25/V Condensing Gas 88.9%
Boulter Buderus 800-29P Condensing LPG 89.6%
Boulter Buderus 800-29T25/H Condensing Gas 88.9%
Boulter Buderus 800-29T25/V Condensing Gas 88.9%
Boulter Buderus 800-43P Condensing LPG 89.6%
Boulter Buderus 800/24 Condensing Gas 88.5%
Boulter Buderus 800/29 Condensing Gas 88.6%
Boulter Buderus 800/43 Condensing Gas 88.6%
Boulter Buderus 800/60 Condensing Gas 88.6%
Boulter Camray 15/19 External Non-Condensing Oil 80.5%
Boulter Camray 15/21 External Non-Condensing Oil 70.0%
Boulter Camray 15/21 Internal Non-Condensing Oil 70.0%
Boulter Camray 3 135/175 Non-Condensing Oil 85.1%
Boulter Camray 3 135/175 B Non-Condensing Oil 70.0%
Boulter Camray 3 135/175 F Non-Condensing Oil 70.0%
Boulter Camray 3 40/50 Non-Condensing Oil 70.0%
Boulter Camray 3 50/70 Non-Condensing Oil 70.0%
Boulter Camray 3 90/130 B Non-Condensing Oil 70.0%
Boulter Camray 3 90/130 F Non-Condensing Oil 70.0%
Boulter Camray 5 100/130 Non-Condensing Oil 80.1%
Boulter Camray 5 100/140 Non-Condensing Oil 80.1%
Boulter Camray 5 100/140 System Non-Condensing Oil 80.1%
Boulter Camray 5 100/140 Utility Non-Condensing Oil 80.1%
Boulter Camray 5 150/200 Non-Condensing Oil 83.6%
Boulter Camray 5 150/200G Non-Condensing Oil 85.5%
Boulter Camray 5 150/200K Non-Condensing Oil 84.2%
Boulter Camray 5 200/240 Non-Condensing Oil 84.4%
Boulter Camray 5 40/65 Non-Condensing Oil 85.5%
Boulter Camray 5 40/65 EX Non-Condensing Oil 85.5%
Boulter Camray 5 65/90 EX Non-Condensing Oil 84.7%
Boulter Camray 5 65/90A Non-Condensing Oil 85.0%
Boulter Camray 5 65/90A System Non-Condensing Oil 85.0%
Boulter Camray 5 65/90A Utility Non-Condensing Oil 85.0%
Boulter Camray 5 65/95 Non-Condensing Oil 83.5%
Boulter Camray 5 95/130A Non-Condensing Oil 85.3%
Boulter Camray 5 95/130A System Non-Condensing Oil 85.3%
Boulter Camray 5 95/130A Utility Non-Condensing Oil 85.3%
Boulter Camray 5 Combi Non-Condensing Oil 81.8%
Boulter Camray 5 Combi 55 Non-Condensing Oil 83.8%
Boulter Camray 5 Combi 70A Non-Condensing Oil 83.3%
Boulter Camray 5 Combi 90A Non-Condensing Oil 83.3%
Boulter Camray 5 Combi 90BE Non-Condensing Oil 83.0%
Boulter Camray 5 System 100/130 System Non-Condensing Oil 80.1%
Boulter Camray 5 System 40/65 System Non-Condensing Oil 85.5%
Boulter Camray 5 System 65/95 System Non-Condensing Oil 83.5%
Boulter Camray 5 U 40/65 S Non-Condensing Oil 85.5%
Boulter Camray 5 U 65/90 SB Non-Condensing Oil 84.2%
Boulter Camray 5 U 95 / 130 SA Non-Condensing Oil 85.3%
Boulter Camray 5 Utility 100/130 Utility Non-Condensing Oil 80.1%
Boulter Camray 5 Utility 40/65 Utility Non-Condensing Oil 85.5%
Boulter Camray 5 Utility 65/95 Utility Non-Condensing Oil 83.5%
Boulter Camray 5 Wall Hung 50/70 External Non-Condensing Oil 85.3%
Boulter Camray 5 Wall Hung 50/70 Internal Non-Condensing Oil 85.3%
Boulter Camray Combi 90/130 B Non-Condensing Oil 70.0%
Boulter Camray Combi 90/130 F Non-Condensing Oil 70.0%
Boulter Camray Combi plus Non-Condensing Oil 78.5%
Boulter Camray Compact 50/70 B Non-Condensing Oil 70.0%
Boulter Camray Compact 50/70 F Non-Condensing Oil 70.0%
Boulter Camray Quartet 110/150 B Non-Condensing Oil 70.0%
Boulter Camray Quartet 110/150 F Non-Condensing Oil 70.0%
Boulter Camray Quartet 40/60 B Non-Condensing Oil 70.0%
Boulter Camray Quartet 40/60 F Non-Condensing Oil 70.0%
Boulter Camray Quartet 60/80 B Non-Condensing Oil 70.0%
Boulter Camray Quartet 60/80 F Non-Condensing Oil 70.0%
Boulter Camray Quartet 90/110 B Non-Condensing Oil 70.0%
Boulter Camray Quartet 90/110 F Non-Condensing Oil 70.0%
Boulter Camray Utility 110/150 B Non-Condensing Oil 70.0%
Boulter Camray Utility 110/150 F Non-Condensing Oil 70.0%
Boulter Camray Utility 40/60 B Non-Condensing Oil 70.0%
Boulter Camray Utility 40/60 F Non-Condensing Oil 70.0%
Boulter Camray Utility 60/80 B Non-Condensing Oil 70.0%
Boulter Camray Utility 60/80 F Non-Condensing Oil 70.0%
Boulter Camray Utility 90/110 B Non-Condensing Oil 70.0%
Boulter Camray Utility 90/110 F Non-Condensing Oil 70.0%
Boulter Centurion 2.5 Non-Condensing Gas 76.6%
Boulter Centurion 3.5 Non-Condensing Gas 77.0%
Boulter Classic 135/165 Non-Condensing Oil 84.1%
Boulter Classic 135/165A Non-Condensing Oil 84.6%
Boulter Classic 50/70 Non-Condensing Oil 79.5%
Boulter Classic 50/70 A Non-Condensing Oil 85.0%
Boulter Classic 50/70 A System Non-Condensing Oil 85.0%
Boulter Classic 70/90 Non-Condensing Oil 80.3%
Boulter Classic 70/90A Non-Condensing Oil 84.7%
Boulter Classic 70/90A System Non-Condensing Oil 84.7%
Boulter Classic 95/130 Non-Condensing Oil 85.5%
Boulter Classic 95/130 System Non-Condensing Oil 85.5%
Boulter Compact 50/70 Non-Condensing Oil 81.6%
Boulter Eco-System 12/19 Non-Condensing Oil 85.5%
Boulter Eco-System 19/26 Non-Condensing Oil 84.2%
Boulter Economy 130 Non-Condensing Oil 70.0%
Boulter Economy 50/70 Non-Condensing Oil 70.0%
Boulter Economy 70/90 Non-Condensing Oil 70.0%
Boulter Economy 90 Non-Condensing Oil 70.0%
Boulter Pathfinder C2/10A (Gas Oil) Non-Condensing Oil 84.9%
Boulter Pathfinder C2/10A (Kerosene) Non-Condensing Oil 84.7%
Boulter Pathfinder C2/6A (Gas Oil) Non-Condensing Oil 84.2%
Boulter Pathfinder C2/6A (Kerosene) Non-Condensing Oil 84.6%
Boulter Pathfinder C2/7A (Gas Oil) Non-Condensing Oil 84.3%
Boulter Pathfinder C2/7A (Kerosene) Non-Condensing Oil 84.5%
Boulter Pathfinder C2/8A (Gas Oil) Non-Condensing Oil 84.4%
Boulter Pathfinder C2/8A (Kerosene) Non-Condensing Oil 84.5%
Boulter Pathfinder C2/9A (Gas Oil) Non-Condensing Oil 84.6%
Boulter Pathfinder C2/9A (Kerosene) Non-Condensing Oil 84.6%
Boulter Pathfinder GA 36 kW Non-Condensing Gas 79.3%
Boulter Pathfinder GA 48 kW Non-Condensing Gas 79.6%
Boulter Pathfinder GA 60kW Non-Condensing Gas 79.6%
Boulter Pathfinder GA 70kW Non-Condensing Gas 79.5%
Boxer C24 24kW Combi Boiler Non-Condensing Gas 78.9%
Boxer C28 28kW Combi Boiler Non-Condensing Gas 78.9%
British / Scottish Gas RD1 3100 Non-Condensing Gas 78.0%
British / Scottish Gas RD1 330 Non-Condensing Gas 79.4%
British / Scottish Gas RD1 340 Non-Condensing Gas 78.6%
British / Scottish Gas RD1 350 Non-Condensing Gas 79.6%
British / Scottish Gas RD1 360 Non-Condensing Gas 78.3%
British / Scottish Gas RD1 370 Non-Condensing Gas 78.5%
British / Scottish Gas RD1 380 Non-Condensing Gas 78.1%
British / Scottish Gas RD109 Non-Condensing Gas 79.4%
British / Scottish Gas RD109 Silver Non-Condensing Gas 79.4%
British / Scottish Gas RD112 Non-Condensing Gas 78.6%
British / Scottish Gas RD112 Silver Non-Condensing Gas 78.6%
British / Scottish Gas RD115 Non-Condensing Gas 79.6%
British / Scottish Gas RD115 Silver Non-Condensing Gas 79.6%
British / Scottish Gas RD118 Non-Condensing Gas 78.3%
British / Scottish Gas RD118 Silver Non-Condensing Gas 78.3%
British / Scottish Gas RD121 Non-Condensing Gas 78.5%
British / Scottish Gas RD121 Silver Non-Condensing Gas 78.5%
British / Scottish Gas RD124 Non-Condensing Gas 78.1%
British / Scottish Gas RD124 Silver Non-Condensing Gas 78.1%
British / Scottish Gas RD130 Non-Condensing Gas 78.0%
British / Scottish Gas RD130 Silver Non-Condensing Gas 78.0%
British / Scottish Gas RD2 4100 Non-Condensing Gas 78.9%
British / Scottish Gas RD2 4125 Non-Condensing Gas 78.5%
British / Scottish Gas RD2 440 Non-Condensing Gas 78.3%
British / Scottish Gas RD2 450 Non-Condensing Gas 79.0%
British / Scottish Gas RD2 460 Non-Condensing Gas 79.2%
British / Scottish Gas RD2 470 Non-Condensing Gas 79.9%
British / Scottish Gas RD2 480 Non-Condensing Gas 79.7%
British Gas 330 Condensing Gas 89.7%
British Gas 330+ Condensing Gas 88.7%
British Gas 430 Condensing Gas 89.5%
British Gas 430 LPG Condensing LPG 90.5%
British Gas 430/I Condensing Gas 89.5%
British Gas 532 Condensing Gas 89.4%
British Gas 532 LPG Condensing LPG 90.4%
British Gas 532/I Condensing Gas 89.4%
British Gas 535/i Condensing LPG 90.1%
British Gas 537 Condensing Gas 89.4%
British Gas 537 LPG Condensing LPG 90.4%
British Gas 537/I Condensing Gas 89.4%
British Gas 539/i Condensing LPG 90.0%
British Gas 542 Condensing Gas 89.4%
British Gas 542 LPG Condensing LPG 90.4%
British Gas 542/I Condensing Gas 89.4%
British Gas RD 428 Condensing LPG 89.8%
British Gas RD 428 System Condensing Gas 88.8%
British Gas RD 430i System Condensing Gas 88.8%
British Gas RD 532 Combi Condensing Gas 89.5%
British Gas RD 532i Combi Condensing Gas 89.5%
British Gas RD 537i Combi Condensing Gas 89.5%
British Gas RD 542i Combi Condensing Gas 88.9%
British Gas RD628 RSF Non-Condensing Gas 78.4%
British Gas/Scottish Gas C1 RSF Non-Condensing Gas 78.2%
Broag Remeha Avanta Plus 24s Condensing Gas 89.2%
Broag Remeha Avanta Plus 28c Condensing Gas 89.1%
Broag Remeha Avanta Plus 35c Condensing Gas 89.5%
Broag Remeha Avanta Plus 39c Condensing Gas 89.7%
Broag Remeha Quinta 45 Condensing Gas 88.7%
Broag Remeha Quinta 65 Condensing Gas 89.3%
Broag Remeha Quinta Quinta 30 Condensing Gas 89.2%
Broag Remeha Selecta Selecta Combi Condensing Gas 89.3%
Broag Remeha Selecta Selecta System Condensing Gas 89.4%
Broag Remeha W40M Eco Condensing Gas 83.0%
Broag Remeha W60M Eco Condensing Gas 83.0%
Buderus Logamax Plus GB162-65kW Condensing Gas 88.9%
Burco Maxol Microturbo 40 SRF & 40 MDF Non-Condensing Gas 68.0%
Burco Maxol Microturbo 50 SRF & 50 MDF Non-Condensing Gas 68.0%
Caradon Ideal Mexico Slimline 2 cf40 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Slimline 2 cf55 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Slimline 2 rs40 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Slimline 2 rs55 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Slimline cf40 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Slimline cf55 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Slimline rs40 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Slimline rs55 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super cf100 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super cf125 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super cf30/40 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super cf40 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super cf40/60 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super cf55 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super cf65 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super cf75 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super cf80 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super rs100 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super rs125 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super rs30/40 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super rs40 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super rs40/60 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super rs55 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super rs65 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super rs75 Non-Condensing Gas 65.0%
Caradon Ideal Mexico Super rs80 Non-Condensing Gas 65.0%
Chaffoteaux Celtic ff Non-Condensing Gas 70.0%
Chaffoteaux Challenger 30bf Non-Condensing Gas 65.0%
Chaffoteaux Challenger 30ff Non-Condensing Gas 72.0%
Chaffoteaux Challenger 30of Non-Condensing Gas 65.0%
Chaffoteaux Challenger 40bf Non-Condensing Gas 65.0%
Chaffoteaux Challenger 50ff Non-Condensing Gas 72.0%
Chaffoteaux Challenger 50of Non-Condensing Gas 65.0%
Chaffoteaux Corvec 28bf Non-Condensing Gas 65.0%
Chaffoteaux Corvec 28of Non-Condensing Gas 65.0%
Chaffoteaux Corvec 28s Non-Condensing Gas 65.0%
Chaffoteaux Corvec 45bf Non-Condensing Gas 65.0%
Chaffoteaux Corvec 45of Non-Condensing Gas 65.0%
Chaffoteaux Corvec 45s Non-Condensing Gas 65.0%
Chaffoteaux Corvec 48cf Non-Condensing Gas 65.0%
Chaffoteaux Corvec 64cf Non-Condensing Gas 65.0%
Chaffoteaux Corvec 80cf Non-Condensing Gas 65.0%
Chaffoteaux Corvec Maxiflame 2bf Non-Condensing Gas 65.0%
Chaffoteaux Corvec Miniflame cf Non-Condensing Gas 65.0%
Chaffoteaux et Maury Britony Combi 100 Non-Condensing Gas 78.4%
Chaffoteaux et Maury Britony Combi 80 Non-Condensing Gas 76.6%
Chaffoteaux et Maury Britony Combi SE100 Atac 28FF Non-Condensing Gas 78.4%
Chaffoteaux et Maury Britony Combi SE80 Atac 24FF Non-Condensing Gas 78.7%
Chaffoteaux et Maury Britony System 100 Non-Condensing Gas 78.5%
Chaffoteaux et Maury Britony System 40 Non-Condensing Gas 76.2%
Chaffoteaux et Maury Britony System 60 Non-Condensing Gas 78.9%
Chaffoteaux et Maury Britony System II 100 Non-Condensing Gas 78.5%
Chaffoteaux et Maury Britony System II 80 Non-Condensing Gas 78.8%
Chaffoteaux et Maury Britony System II Plus 100 Non-Condensing Gas 78.5%
Chaffoteaux et Maury Britony System II Plus 80 Non-Condensing Gas 78.8%
Chaffoteaux et Maury Calydra 100 Non-Condensing Gas 78.4%
Chaffoteaux et Maury Calydra 80 Non-Condensing Gas 76.6%
Chaffoteaux et Maury Calydra 80 V2 Non-Condensing Gas 78.7%
Chaffoteaux et Maury Calydra Comfort 100 Non-Condensing Gas 78.4%
Chaffoteaux et Maury Calydra Green 24 Condensing Gas 88.9%
Chaffoteaux et Maury Calydra Green 30 Condensing Gas 88.5%
Chaffoteaux et Maury Centora Green 18-24 Eurocondens 18-24 Condensing Gas 89.4%
Chaffoteaux et Maury Centora Green 24 Condensing Gas 88.9%
Chaffoteaux et Maury Centora Green 30 Condensing Gas 88.5%
Chaffoteaux et Maury Centora Green System 24 Condensing Gas 89.0%
Chaffoteaux et Maury Centora Green System 30 Condensing Gas 88.6%
Chaffoteaux et Maury Minima HE 24 Condensing Gas 88.8%
Chaffoteaux et Maury Minima HE 30 Condensing Gas 88.8%
Chaffoteaux et Maury Minima HE 35 Condensing Gas 89.1%
Chaffoteaux et Maury Minima HE System 24 Condensing Gas 88.9%
Chaffoteaux et Maury Minima HE System 30 Condensing Gas 88.9%
Chaffoteaux et Maury MX2 24 FF LPG Minima Non-Condensing LPG 79.9%
Chaffoteaux et Maury MX2 24 FF Minima Non-Condensing Gas 78.1%
Chaffoteaux et Maury MX2 30 FF LPG Minima Non-Condensing LPG 81.2%
Chaffoteaux et Maury MX2 30 FF Minima Non-Condensing Gas 79.4%
Charles Portway & Son Portway 40F Non-Condensing Oil 65.0%
Charles Portway & Son Portway Inset Trio Non-Condensing Oil 65.0%
Charles Portway & Son Portway Tortoisaire MkIII Non-Condensing Oil 65.0%
Charles Portway & Son Portway Trio MkIV Non-Condensing Oil 65.0%
Charles Portway & Son Portway Visaire Non-Condensing Oil 65.0%
Claudio GR (Vokera) Excell 80SP Non-Condensing Gas 73.0%
Clyde CW45 Condensing Gas 88.8%
Clyde CW60 Condensing Gas 89.1%
Clyde GB112-43 Condensing Gas 88.6%
Clyde GB112-60 Condensing Gas 88.6%
Clyde GO4E Non-Condensing Gas 78.7%
Clyde GO5E Non-Condensing Gas 78.8%
Clyde GO6E Non-Condensing Gas 78.7%
Clyde GO7E Non-Condensing Gas 78.7%
Coopra BV Biasi Riva Condensing M101.31 S (P) Condensing Gas 89.3%
Coopra BV Biasi Riva Condensing M101.31 SR (P) Condensing Gas 89.4%
Coopra BV Biasi Riva Condensing M101.31 SRB (P) Condensing Gas 89.4%
Daikin EHYKOMB33AA Condensing LPG 90.1%
Daikin EHYKOMB33AA EHYKOMB33AAS Condensing Gas 89.2%
Daikin EKOMBGU22AAV1 GC 47-464-02 Condensing Gas 88.8%
Daikin EKOMBGU28AAV1 Condensing Gas 88.8%
Daikin EKOMBGU33AAV1 GC47-464-04 Condensing Gas 89.1%
Daikin EKOMBU22AAV1 Condensing Gas 88.8%
Daikin EKOMBU28AAV1 Condensing Gas 88.8%
Daikin EKOMBU33AAV1 GC 47 464 07 Condensing Gas 89.1%
DD Heating Heatline C24 Condensing Gas 85.5%
DD Heating Heatline C28 Condensing Gas 86.1%
DD Heating Heatline C28S Condensing Gas 86.1%
DD Heating Heatline S20 Compact Non-Condensing Gas 79.3%
DD Heating Heatline S20S Compact Non-Condensing Gas 79.4%
DD Heating Heatline S24 Compact Non-Condensing Gas 79.9%
DD Heating Heatline S24S Compact Non-Condensing Gas 80.0%
DD Heating Heatline S30 Compact Non-Condensing Gas 79.0%
DD Heating Heatline S30S Compact Non-Condensing Gas 79.1%
DD Heating Heatline Solaris 24PC Condensing Gas 88.6%
DD Heating Heatline Solaris 30 PC Condensing Gas 88.6%
DD Heating Heatline Solaris 30PCS Condensing Gas 88.7%
DD Heating Heatline Star 24 Non-Condensing Gas 78.6%
DD Heating Mikrofill Ethos 24 C Non-Condensing Gas 78.6%
De Dietrich MPX 20/24 MI COMPACT Condensing Gas 89.1%
De Dietrich MPX 24 COMPACT Condensing Gas 89.2%
De Dietrich MPX 24/28 MI COMPACT Condensing Gas 89.1%
De Dietrich MPX 28/33 BIC Condensing Gas 89.1%
De Dietrich MPX 28/33 MI COMPACT Condensing Gas 89.1%
De Dietrich Thermique EMC-M 24 Condensing Gas 89.4%
De Dietrich Thermique EMC-M 24/28MI Condensing Gas 89.3%
De Dietrich Thermique EMC-M 30/35MI Condensing Gas 89.2%
De Dietrich Thermique EMC-M 34/39MI Condensing Gas 89.1%
Dimplex Combi 24 Condensing LPG 90.8%
Dimplex Combi 30 Condensing LPG 90.1%
Dimplex Combi 38 Condensing LPG 90.6%
Dimplex OV 18 Condensing LPG 90.9%
Dimplex OV 32 Condensing LPG 90.1%
Dimplex System 18 Condensing LPG 90.9%
Dimplex System 30 Condensing LPG 90.8%
E.C.A. Confeo Premix CP 24 HCH Condensing Gas 88.7%
E.C.A. Confeo Premix CP 24 HM Condensing Gas 88.6%
E.C.A. Confeo Premix CP 24 HST Condensing LPG 89.7%
E.C.A. Confeo Premix CP 30 HCH Condensing LPG 89.9%
E.C.A. Confeo Premix CP 30 HM Condensing LPG 89.8%
E.C.A. Confeo Premix CP 30 HST Condensing LPG 89.9%
Eco Hometec (UK) EC16H Condensing Gas 88.7%
Eco Hometec (UK) EC16HS Condensing Gas 88.7%
Eco Hometec (UK) EC16S Condensing Gas 88.6%
Eco Hometec (UK) EC23H Condensing Gas 89.2%
Eco Hometec (UK) EC23HS Condensing Gas 89.2%
Eco Hometec (UK) EC23S Condensing Gas 89.1%
Eco Hometec (UK) EC31H Condensing Gas 89.2%
Eco Hometec (UK) EC31HS Condensing Gas 89.2%
Eco Hometec (UK) EC31S Condensing Gas 89.1%
Eco Hometec (UK) EC38H Condensing Gas 89.0%
Eco Hometec (UK) EC38S Condensing Gas 88.9%
Eco Hometec (UK) Multi-Oil Type 2.1 Condensing Oil 89.5%
Eco Hometec (UK) Multi-Oil Type 4 Condensing Oil 89.5%
Econoflame Econoflame R30/45 Condensing Gas 89.1%
Econoflame Econoflame R30/45 LPG Condensing LPG 90.1%
Econoflame Econoflame R30/65 Condensing Gas 88.9%
Econoflame Econoflame R30/65 LPG Condensing LPG 89.9%
EHC Eco Save 21K Condensing Gas 89.4%
EHC Eco Save 25K Condensing Gas 89.0%
EHC Eco Save 32K Condensing Gas 89.1%
EHC Eco Save 37k Condensing Gas 88.9%
ELCO Klockner Heiztechnik Ultron 22 Condensing Gas 86.8%
Elco Straton 22 Non-Condensing Oil 85.6%
Elco Systron 2-22 Non-Condensing Oil 85.6%
Elco THISION S PLUS 34 Condensing Gas 89.4%
Elco THISION S PLUS 46 Condensing Gas 89.5%
Elco THISION S PLUS 54 Condensing Gas 89.5%
Elco Trigon 22 Condensing Gas 88.8%
Eurocal Ambassador 15/21 Kitchen Condensing Oil 92.0%
Eurocal Ambassador 21/27 Kitchen Condensing Oil 91.6%
Eurocal Ambassador 27/38 Kitchen Condensing Oil 91.6%
Eurocal Countryman 15/21 Outdoor Combi Condensing Oil 90.3%
Eurocal Countryman 15/21 Slimline Outdoor Condensing Oil 92.0%
Eurocal Countryman 21/27 Outdoor Combi Condensing Oil 89.9%
Eurocal Countryman 21/27 Slimline Outdoor Condensing Oil 91.6%
Eurocal Countryman 27/38 Outdoor Combi Condensing Oil 89.9%
Eurocal Countryman 27/38 Slimline Outdoor Condensing Oil 89.9%
Eurocal Senator 15/21 Combi Condensing Oil 90.3%
Eurocal Senator 21/27 Combi Condensing Oil 89.9%
Eurocal Senator 27/38 Combi Condensing Oil 89.9%
Europa 24 24kW Combi Boiler Non-Condensing Gas 78.9%
Europa 28 28 kW Combi Boiler Non-Condensing Gas 79.8%
EUROTERM E25 Condensing Gas 88.0%
EUROTERM E27 PLUS Condensing Gas 89.5%
EUROTERM E29 Condensing Gas 88.0%
EUROTERM E32 PLUS Condensing Gas 89.5%
Evo HE 12 HE 12 Condensing Gas 88.7%
Evo HE 16 HE16 Condensing Gas 89.7%
Evo HE 19 HE19 Condensing Gas 89.4%
Evo HE 22 HE22 Condensing Gas 88.8%
Evo HE C22/24 HE C 22/24 Condensing Gas 88.7%
Evo HE C22/30 HE C22/30 Condensing Gas 88.7%
Evo HE C22/35 HE C22/35 Condensing Gas 88.7%
Express BC 24 Combi Condensing Gas 86.4%
Express BC 28 Combi Condensing Gas 86.5%
Fagor Electrodomesticos S.Coop FE-24E Supercompact Fe-24EUK Non-Condensing Gas 79.9%
Fagor Electrodomesticos S.Coop FE-24E Supercompact FE-24EUK N Non-Condensing Gas 79.9%
Fagor Electrodomesticos S.Coop FE-27E Supercompact FE-27EUK Non-Condensing LPG 79.8%
Fagor Electrodomesticos S.Coop FE-27E Supercompact FE-27EUK N Non-Condensing Gas 78.4%
Fagor Electrodomesticos S.Coop FEB-20E Ecoplus FEB-20EUK GLP Non-Condensing LPG 81.0%
Fagor Electrodomesticos S.Coop FEB-20E Ecoplus FEB-20EUK N Non-Condensing Gas 79.5%
Fagor Electrodomesticos S.Coop FEB-24E Supercompact FEB-24EUK Non-Condensing LPG 82.1%
Fagor Electrodomesticos S.Coop FEB-24E Supercompact FEB-24EUK N Non-Condensing Gas 79.9%
Fagor Electrodomesticos S.Coop FEB-27E Supercompact FEB-27EUK N Non-Condensing Gas 78.4%
Fagor Electrodomesticos S.Coop FEE-35MA Supercompact FEE-35MAUK Non-Condensing LPG 81.8%
Fagor Electrodomesticos S.Coop FEE-35MA Supercompact FEE-35MAUK N Non-Condensing Gas 80.0%
Fagor Electrodomesticos S.Coop Morco FEB-24E Supercompact FEB-24EUK Non-Condensing LPG 82.1%
Fagor Electrodomesticos S.Coop Morco FEB-24E Supercompact FEB-24EUK Nat Non-Condensing Gas 79.9%
Fer Industrie Falcon Non-Condensing Gas 79.6%
Fer Industrie Falcon II Non-Condensing Gas 78.0%
Fer tech 18ov Condensing Gas 89.4%
Fer tech 25ov Condensing Gas 89.1%
Fer tech 31C Condensing Gas 89.0%
Fer tech 38C Condensing Gas 89.3%
Ferroli 100FF Non-Condensing Gas 70.0%
Ferroli 77CF Non-Condensing Gas 65.0%
Ferroli 77FF Non-Condensing Gas 70.0%
Ferroli 77FF(P) Non-Condensing Gas 70.0%
Ferroli Arena 30 A Condensing Gas 88.7%
Ferroli Arena 30 A Mk2 Condensing Gas 88.9%
Ferroli Arena 30 C Condensing Gas 88.6%
Ferroli Arena 30 C Mk2 Condensing Gas 88.8%
Ferroli Combi 76ff Non-Condensing Gas 70.0%
Ferroli Domicompact F 24 B Condensing Gas 86.8%
Ferroli Domicompact F 24 B LPG Condensing LPG 87.8%
Ferroli Domicompact F 30 B Condensing Gas 86.8%
Ferroli Domicompact F 30 B LPG Condensing LPG 87.8%
Ferroli DOMIcondens F24 Condensing Gas 87.0%
Ferroli DOMIcondens F28 Condensing Gas 87.0%
Ferroli DOMIcondens HE 26C Condensing Gas 88.5%
Ferroli Domina 80 Non-Condensing Gas 79.6%
Ferroli Econcept 50 A LPG Condensing LPG 90.3%
Ferroli Econcept 50A Condensing Gas 89.3%
Ferroli F 24 B Condensing Gas 86.8%
Ferroli F 24 B LPG Condensing LPG 87.8%
Ferroli F 30 B Condensing Gas 86.8%
Ferroli F 30 B LPG Condensing LPG 87.8%
Ferroli F24 Non-Condensing Gas 79.6%
Ferroli F30 Non-Condensing Gas 78.0%
Ferroli FERcondens 25 HE Condensing Gas 88.5%
Ferroli Hawk II Hawk II Non-Condensing Gas 68.0%
Ferroli i25 Condensing Gas 88.0%
Ferroli i29 Condensing Gas 88.0%
Ferroli Maxima 35 C LPG Condensing LPG 90.5%
Ferroli Maxima 35 S LPG Condensing LPG 90.6%
Ferroli Maxima 35C Condensing Gas 89.5%
Ferroli Maxima 35S Condensing Gas 89.6%
Ferroli Modena 102 Non-Condensing Gas 78.0%
Ferroli Modena 18S HE Condensing Gas 89.2%
Ferroli Modena 25C HE Condensing Gas 89.1%
Ferroli Modena 25S HE Condensing Gas 89.3%
Ferroli Modena 27C HE Condensing Gas 89.2%
Ferroli Modena 30C HE Condensing Gas 89.2%
Ferroli Modena 32C HE Condensing Gas 89.2%
Ferroli Modena 32S HE Condensing Gas 89.3%
Ferroli MODENA 38C HE 47-267-63 Condensing Gas 89.1%
Ferroli Modena 80 Non-Condensing Gas 79.6%
Ferroli Optima 1000 Non-Condensing Gas 70.0%
Ferroli Optima 200 Non-Condensing Gas 74.2%
Ferroli Optima 2000 Condensing Gas 83.0%
Ferroli Optima 2001 Condensing Gas 85.5%
Ferroli Optima 201 Non-Condensing Gas 74.2%
Ferroli Optima 600 Non-Condensing Gas 70.0%
Ferroli Optima 700 Non-Condensing Gas 70.0%
Ferroli Optima 800 Non-Condensing Gas 70.0%
Ferroli Optima 900 Non-Condensing Gas 70.0%
Ferroli Optimax 25 C Condensing Gas 89.3%
Ferroli Optimax 25 C LPG Condensing LPG 90.3%
Ferroli Optimax 25 OV Condensing Gas 89.4%
Ferroli Optimax 25 OV LPG Condensing LPG 90.4%
Ferroli Optimax 25 S Condensing Gas 89.4%
Ferroli Optimax 25 S LPG Condensing LPG 90.4%
Ferroli Optimax HE 25 S Condensing Gas 89.1%
Ferroli Optimax HE 31 C Condensing Gas 89.0%
Ferroli Optimax HE 31 S Condensing Gas 89.4%
Ferroli Optimax HE 38 C Condensing Gas 89.3%
Ferroli Optimax HE Plus 18 OV Condensing LPG 90.4%
Ferroli Optimax HE Plus 18 S Condensing LPG 90.4%
Ferroli Optimax HE Plus 25 OV Condensing LPG 90.1%
Ferroli Optimax HE Plus 25 S Condensing LPG 90.1%
Ferroli Optimax HE Plus 31 C Condensing LPG 90.0%
Ferroli Optimax HE Plus 35 S Condensing LPG 90.4%
Ferroli Optimax HE Plus 38 C Condensing LPG 90.3%
Ferroli Roma 55ff Non-Condensing Gas 72.0%
Ferroli Sigma 20-40 Non-Condensing Gas 78.2%
Ferroli Sigma 30 Non-Condensing Gas 76.9%
Ferroli Sigma 40 Non-Condensing Gas 77.7%
Ferroli Sigma 40-60 Non-Condensing Gas 78.1%
Ferroli Sigma 50 Non-Condensing Gas 77.3%
Ferroli Sigma 60 Non-Condensing Gas 77.5%
Ferroli Sigma 60-100 Non-Condensing Gas 78.3%
Ferroli SYS 10-23 Non-Condensing Gas 78.9%
Ferroli T-One 25C HE Condensing Gas 89.1%
Ferroli T-One 30C HE Condensing Gas 89.2%
Ferroli Tempra Non-Condensing Gas 77.5%
Ferroli Tempra 12 Non-Condensing Gas 78.1%
Ferroli Tempra 18 Non-Condensing Gas 78.1%
Ferroli Tempra 24 Non-Condensing Gas 78.0%
Ferroli Tempra 30 Non-Condensing Gas 78.1%
Ferroli Xignal Xignal Non-Condensing Gas 68.0%
Firebird Blue Flame Enviromax Heatpac 26kW Condensing Oil 92.5%
Firebird Blue Flame Enviromax Popular 26kW Condensing Oil 92.5%
Firebird Boilerhouse S 120-150 Non-Condensing Oil 85.6%
Firebird Boilerhouse S 150-200 Non-Condensing Oil 85.3%
Firebird Boilerhouse S 200-250 Non-Condensing Oil 85.1%
Firebird Boilerhouse S 50-70 Non-Condensing Oil 83.9%
Firebird Boilerhouse S 70-90 Non-Condensing Oil 85.0%
Firebird Boilerhouse S 90-120 Non-Condensing Oil 85.3%
Firebird Combi 115 Non-Condensing Oil 83.1%
Firebird Combi 50-70 Non-Condensing Oil 82.4%
Firebird Combi 70-90 Non-Condensing Oil 82.4%
Firebird Combi 90 Non-Condensing Oil 83.3%
Firebird Combi 90-120 Non-Condensing Oil 83.6%
Firebird Combi C20 Condensing Oil 89.4%
Firebird Combi C26 Condensing Oil 89.4%
Firebird Combi C35 Condensing Oil 89.2%
Firebird Combipac 115 Non-Condensing Oil 83.1%
Firebird Combipac 50-70 Non-Condensing Oil 82.4%
Firebird Combipac 70-90 Non-Condensing Oil 82.4%
Firebird CombiPac 90 Non-Condensing Oil 83.3%
Firebird Combipac 90-120 Non-Condensing Oil 83.6%
Firebird Combipac C20 Condensing Oil 89.4%
Firebird Combipac C26 Condensing Oil 89.4%
Firebird Combipac C35 Condensing Oil 89.2%
Firebird Enviromax Amber Supreme Heatpac 26 Condensing Oil 93.2%
Firebird Enviromax Amber Supreme Popular 26 Condensing Oil 93.2%
Firebird Enviromax Amber Supreme Utility 26 Condensing Oil 93.2%
Firebird Enviromax Blue Supreme Heatpac 20 Condensing Oil 93.4%
Firebird Enviromax Blue Supreme Heatpac 26 Condensing Oil 93.4%
Firebird Enviromax Blue Supreme Popular 20 Condensing Oil 93.4%
Firebird Enviromax Blue Supreme Popular 26 Condensing Oil 93.4%
Firebird Enviromax Blue Supreme Utility 20 Condensing Oil 93.4%
Firebird Enviromax Blue Supreme Utility 26 Condensing Oil 93.4%
Firebird Enviromax Combi C20 Condensing Oil 89.8%
Firebird Enviromax Combi C20kW Condensing Oil 90.1%
Firebird Enviromax Combi C26 Condensing Oil 89.9%
Firebird Enviromax Combi C26kW Condensing Oil 90.1%
Firebird Enviromax Combi C35 Condensing Oil 89.1%
Firebird Enviromax Combi C35kW Condensing Oil 89.7%
Firebird Enviromax Combi HE 20kW Condensing Oil 90.6%
Firebird Enviromax Combi HE 26kW Condensing Oil 90.4%
Firebird Enviromax Combi HE 35kW Condensing Oil 89.9%
Firebird Enviromax Combipac C20 Condensing Oil 89.8%
Firebird Enviromax Combipac C20kW Condensing Oil 90.1%
Firebird Enviromax Combipac C26 Condensing Oil 89.9%
Firebird Enviromax Combipac C26kW Condensing Oil 90.1%
Firebird Enviromax Combipac C35 Condensing Oil 89.1%
Firebird Enviromax Combipac C35kW Condensing Oil 89.7%
Firebird Enviromax Combipac HE 26kW Condensing Oil 90.2%
Firebird Enviromax Heatpac C12/18 kW Condensing Oil 92.3%
Firebird Enviromax Heatpac C12/20kW Condensing Oil 92.2%
Firebird Enviromax Heatpac C20 Condensing Oil 91.5%
Firebird Enviromax Heatpac C20kW Condensing Oil 91.8%
Firebird Enviromax Heatpac C26 Condensing Oil 91.6%
Firebird Enviromax Heatpac C26kW Condensing Oil 91.8%
Firebird Enviromax Heatpac C35 Condensing Oil 90.8%
Firebird Enviromax Heatpac C35kW Condensing Oil 91.4%
Firebird Enviromax Heatpac C44 Condensing Oil 91.3%
Firebird Enviromax Heatpac C58 Condensing Oil 90.6%
Firebird Enviromax Heatpac C73 Condensing Oil 90.3%
Firebird Enviromax Kitchen C12/18kW Condensing Oil 92.3%
Firebird Enviromax Kitchen C20 Condensing Oil 91.5%
Firebird Enviromax Kitchen C20kW Condensing Oil 91.8%
Firebird Enviromax Kitchen C26 Condensing Oil 91.6%
Firebird Enviromax Kitchen C26kW Condensing Oil 91.8%
Firebird Enviromax Kitchen C35 Condensing Oil 90.8%
Firebird Enviromax Kitchen C35kW Condensing Oil 91.4%
Firebird Enviromax Kitchen C44 Condensing Oil 91.3%
Firebird Enviromax Kitchen C58 Condensing Oil 90.6%
Firebird Enviromax Kitchen C73 Condensing Oil 90.3%
Firebird Enviromax Kitchen System C12/20kW Condensing Oil 92.2%
Firebird Enviromax Popular C12/18KW Condensing Oil 92.3%
Firebird Enviromax Popular C12/20kW Condensing Oil 92.2%
Firebird Enviromax Popular C20 Condensing Oil 91.5%
Firebird Enviromax Popular C20kW Condensing Oil 91.8%
Firebird Enviromax Popular C26 Condensing Oil 91.6%
Firebird Enviromax Popular C26kW Condensing Oil 91.8%
Firebird Enviromax Popular C35 Condensing Oil 90.8%
Firebird Enviromax Popular C35kW Condensing Oil 91.4%
Firebird Enviromax Popular C44 Condensing Oil 91.3%
Firebird Enviromax Popular C58 Condensing Oil 90.6%
Firebird Enviromax Popular C73 Condensing Oil 90.3%
Firebird Enviromax Slimline Combi 20 Condensing Oil 90.5%
Firebird Enviromax Slimline Combi 26 Condensing Oil 90.5%
Firebird Enviromax System C20 Condensing Oil 91.5%
Firebird Enviromax System C20kW Condensing Oil 91.8%
Firebird Enviromax System C26 Condensing Oil 91.6%
Firebird Enviromax System C26kW Condensing Oil 91.8%
Firebird Enviromax System C35 Condensing Oil 90.8%
Firebird Enviromax System C35kW Condensing Oil 91.4%
Firebird Enviromax System C44 Condensing Oil 91.3%
Firebird Enviromax Systempac C12/20kW Condensing Oil 92.2%
Firebird Enviromax Systempac C20 Condensing Oil 91.5%
Firebird Enviromax Systempac C20kW Condensing Oil 91.8%
Firebird Enviromax Systempac C26 Condensing Oil 91.6%
Firebird Enviromax Systempac C26kW Condensing Oil 91.8%
Firebird Enviromax Systempac C35 Condensing Oil 90.8%
Firebird Enviromax Systempac C35kW Condensing Oil 91.4%
Firebird Enviromax Systempac C44 Condensing Oil 91.3%
Firebird Enviromax Utility C20 Condensing Oil 91.5%
Firebird Enviromax Utility C20kW Condensing Oil 91.8%
Firebird Enviromax Utility C26 Condensing Oil 91.6%
Firebird Enviromax Utility C26kW Condensing Oil 91.8%
Firebird Enviromax Utility C35 Condensing Oil 90.8%
Firebird Enviromax Utility C35kW Condensing Oil 91.4%
Firebird Envirormax Kitchen C12/20kW Condensing Oil 92.2%
Firebird Heatpac 120-150 Non-Condensing Oil 85.6%
Firebird Heatpac 150-200 Non-Condensing Oil 85.3%
Firebird Heatpac 200-250 Non-Condensing Oil 85.1%
Firebird Heatpac 70 Non-Condensing Oil 83.9%
Firebird Heatpac 70 System Non-Condensing Oil 83.9%
Firebird Heatpac 70-90 Non-Condensing Oil 85.0%
Firebird Heatpac 90-120 Non-Condensing Oil 85.3%
Firebird Heatpac 90-120 System Non-Condensing Oil 85.3%
Firebird Heatpac C20 Condensing Oil 91.1%
Firebird Heatpac C26 Condensing Oil 91.1%
Firebird Heatpac C35 Condensing Oil 90.9%
Firebird Heatpac S 70-90 Non-Condensing Oil 85.0%
Firebird Heatpac S 90-120 Non-Condensing Oil 85.3%
Firebird Heatpac Sealed System 70-90 Non-Condensing Oil 85.0%
Firebird Kitchen C20 Condensing Oil 91.1%
Firebird Kitchen C26 Condensing Oil 91.1%
Firebird Kitchen C35 Condensing Oil 90.9%
Firebird Oylympic Boilerhouse 50 – 70 Non-Condensing Oil 83.9%
Firebird Oylympic Boilerhouse 50-82 Non-Condensing Oil 85.0%
Firebird Oylympic Boilerhouse 70 – 90 Non-Condensing Oil 85.0%
Firebird Oylympic Boilerhouse 90-115 Non-Condensing Oil 85.3%
Firebird Oylympic De Luxe 50-82 Non-Condensing Oil 85.0%
Firebird Oylympic DeLuxe 50-70 Non-Condensing Oil 83.9%
Firebird Oylympic Deluxe 70-90 Non-Condensing Oil 85.0%
Firebird Oylympic S 50-70 Non-Condensing Oil 83.9%
Firebird Oylympic S 50-82 Non-Condensing Oil 85.0%
Firebird Oylympic S 70-90 Non-Condensing Oil 85.0%
Firebird Oylympic S 90-115 Non-Condensing Oil 85.3%
Firebird Popular 120-150 Non-Condensing Oil 85.6%
Firebird Popular 150-200 Non-Condensing Oil 85.3%
Firebird Popular 200-250 Non-Condensing Oil 85.1%
Firebird Popular 50-70 Non-Condensing Oil 83.9%
Firebird Popular 50-90 Non-Condensing Oil 85.0%
Firebird Popular 90-120 Non-Condensing Oil 85.3%
Firebird Rhino 120-150 Boilerhouse Non-Condensing Oil 85.6%
Firebird Rhino 120-150 Kitchen Non-Condensing Oil 85.6%
Firebird Rhino 150-200 Boilerhouse Non-Condensing Oil 85.3%
Firebird Rhino 150-200 Kitchen Non-Condensing Oil 85.3%
Firebird Rhino 200-250 Boilerhouse Non-Condensing Oil 85.1%
Firebird Rhino 200-250 Kitchen Non-Condensing Oil 85.1%
Firebird Rhino 50-90 Boilerhouse Non-Condensing Oil 85.0%
Firebird Rhino 50-90 Kitchen Non-Condensing Oil 85.0%
Firebird Rhino 90-120 Boilerhouse Non-Condensing Oil 85.3%
Firebird Rhino 90-120 Kitchen Non-Condensing Oil 85.3%
Firebird Rhino Heatpac 50-90 Non-Condensing Oil 85.0%
Firebird Rhino Heatpac 90-120 Non-Condensing Oil 85.3%
Firebird Rhino Slimline Heatpac 50/90 Non-Condensing Oil 85.0%
Firebird Roomsealed Popular (Hideaway) 120-150 Non-Condensing Oil 85.6%
Firebird Roomsealed Popular (Hideaway) 50 – 90 Non-Condensing Oil 85.0%
Firebird Roomsealed Popular (Hideaway) 90-120 Non-Condensing Oil 85.3%
Firebird S (White Cased) 120-150 Non-Condensing Oil 85.6%
Firebird S (White Cased) 150-200 Non-Condensing Oil 85.3%
Firebird S (White Cased) 200-250 Non-Condensing Oil 85.1%
Firebird S (White Cased) 50-70 Non-Condensing Oil 83.9%
Firebird S (White Cased) 70 System Non-Condensing Oil 83.9%
Firebird S (White Cased) 70-90 Non-Condensing Oil 85.0%
Firebird S (White cased) 90-120 Non-Condensing Oil 85.3%
Firebird S (White Cased) 90-120 System Non-Condensing Oil 85.3%
Firebird Sealed System 70-90 Non-Condensing Oil 85.0%
Firebird Silver Boiilerhouse C20kW Condensing Oil 91.3%
Firebird Silver Boiilerhouse C35KW Condensing Oil 90.7%
Firebird Silver Boilerhouse C26kW Condensing Oil 91.2%
Firebird Silver Boilerhouse CR20 Condensing Oil 90.5%
Firebird Silver Boilerhouse CR26 Condensing Oil 90.2%
Firebird Silver Boilerhouse CR35 Condensing Oil 89.0%
Firebird Silver System C20kW Condensing Oil 91.3%
Firebird Silver System C26kW Condensing Oil 91.2%
Firebird Silver System C35kW Condensing Oil 90.7%
Firebird Silver System CR20 Condensing Oil 90.5%
Firebird Silver System CR26 Condensing Oil 90.2%
Firebird Silver System CR35 Condensing Oil 89.0%
Firebird Silver Utility C20kW Condensing Oil 91.3%
Firebird Silver Utility C26kW Condensing Oil 91.2%
Firebird Silver Utility C35kW Condensing Oil 90.7%
Firebird Silver Utility CR20 Condensing Oil 90.5%
Firebird Silver Utility CR26 Condensing Oil 90.2%
Firebird Silver Utility CR35 Condensing Oil 89.0%
Firebird Silverpac C20kW Condensing Oil 91.3%
Firebird Silverpac C26kW Condensing Oil 91.2%
Firebird Silverpac C35kW Condensing Oil 90.7%
Firebird Silverpac CR20 Condensing Oil 90.5%
Firebird Silverpac CR26 Condensing Oil 90.2%
Firebird Silverpac CR35 Condensing Oil 89.0%
Firebird System C20 Condensing Oil 91.1%
Firebird System C26 Condensing Oil 91.1%
Firebird System C35 Condensing Oil 90.9%
Firebird Systempac C20 Condensing Oil 91.1%
Firebird Systempac C26 Condensing Oil 91.1%
Firebird Systempac C35 Condensing Oil 90.9%
Fonderie Sime MURELLE HE 70 R ErP Condensing Gas 89.0%
Fonderie Sime MURELLE PRO HE 35 MkII Condensing Gas 89.0%
Fondital Antea KC 24 Condensing Gas 88.1%
Fondital Antea KC 28 Condensing LPG 89.3%
Fondital Antea KR 24 Condensing Gas 88.2%
Fondital Antea KR 28 Condensing LPG 89.4%
Fondital Antea KRB 24 Condensing Gas 88.2%
Fondital Itaca KC 24 Condensing LPG 89.1%
Fondital Itaca KC 28 Condensing LPG 89.3%
Fondital Itaca KC 32 Condensing LPG 89.8%
Fondital Itaca KR 24 Condensing LPG 89.2%
Fondital Itaca KR 32 Condensing LPG 89.9%
Fondital Tahiti Condensing KC 24 Line Tech Condensing Gas 88.5%
Fondital Tahiti Condensing KC 28 Line Tech Condensing Gas 88.5%
Fondital Tahiti Condensing KC 32 Line Tech Condensing Gas 88.5%
Fondital Tahiti Condensing KR 24 Line Tech Condensing Gas 88.6%
Fondital Tahiti Condensing KR 28 Line Tech Condensing Gas 88.6%
Fondital Tahiti Condensing KR 32 Line Tech Condensing Gas 88.6%
Fondital Tahiti Condensing KR 55 Line Tech Condensing LPG 90.2%
Fondital Tahiti Condensing KRB 24 Line Tech Condensing Gas 88.6%
Fondital Tahiti Condensing KRB 28 Line Tech Condensing Gas 88.6%
Fondital Tahiti Condensing KRB 32 Line Tech Condensing Gas 88.6%
Fondital Tahiti Dual HC 24 Line Condensing Gas 86.0%
Fondital Tahiti Dual HC 32 Line Condensing LPG 86.7%
Fondital Tahiti Dual HR 24 Line Condensing Gas 86.1%
Fondital Tahiti Dual HR 32 Line Condensing LPG 86.8%
Fondital Tahiti Dual HRB 24 Line Condensing Gas 86.1%
Fondital Tahiti Dual HRB 32 Line Condensing LPG 86.8%
Fontecal Corolla 30 A Condensing Gas 90.0%
Fontecal Corolla 30 P Condensing Gas 89.3%
Fontecal Corolla 30 S Condensing Gas 89.4%
Fontecal Digit XER Non-Condensing LPG 82.2%
Fontecal Polycal 21 A 100 Non-Condensing Oil 82.3%
Fontecal Polycal 21 A 50 Non-Condensing Oil 82.0%
Fontecal Polycal 21 S Non-Condensing Oil 83.4%
Fontecal Polycal 26 A 100 Non-Condensing Oil 82.3%
Fontecal Polycal 26 A 50 Non-Condensing Oil 82.0%
Fontecal Polycal 26 S Non-Condensing Oil 83.4%
GAH Heating Products 100/150 Option Non-Condensing Oil 81.7%
GAH Heating Products 100/150 Select Non-Condensing Oil 81.7%
GAH Heating Products 140/190 Select Non-Condensing Oil 82.2%
GAH Heating Products 190/240 Select Non-Condensing Oil 80.9%
GAH Heating Products 40/60 Option Non-Condensing Oil 81.8%
GAH Heating Products 40/60 Select Non-Condensing Oil 81.8%
GAH Heating Products 60/80 Select Non-Condensing Oil 81.8%
GAH Heating Products 80/95 Option Non-Condensing Oil 80.7%
GAH Heating Products 80/95 Select Non-Condensing Oil 80.7%
GAH Heating Products Combistream BFC 40/60 Non-Condensing Oil 83.9%
GAH Heating Products E40/50 Select Non-Condensing Oil 81.6%
GAH Heating Products E50/80 Select Non-Condensing Oil 80.7%
GAH Heating Products I40/50 Select Non-Condensing Oil 81.6%
GAH Heating Products I50/80 Select Non-Condensing Oil 82.2%
GAH Heating Products Thermecon 100/150 Option B/F Non-Condensing Oil 84.1%
GAH Heating Products Thermecon 100/150 Option C/F Non-Condensing Oil 84.1%
GAH Heating Products Thermecon 100/150 Select B/F Non-Condensing Oil 84.1%
GAH Heating Products Thermecon 100/150 Select C/F Non-Condensing Oil 84.1%
GAH Heating Products Thermecon 100/150 System B/F Non-Condensing Oil 84.1%
GAH Heating Products Thermecon 100/150 System C/F Non-Condensing Oil 84.1%
GAH Heating Products Thermecon 140/190 Option B/F Non-Condensing Oil 83.9%
GAH Heating Products Thermecon 140/190 Option C/F Non-Condensing Oil 83.9%
GAH Heating Products Thermecon 140/190 Select B/F Non-Condensing Oil 83.9%
GAH Heating Products Thermecon 140/190 Select C/F Non-Condensing Oil 83.9%
GAH Heating Products Thermecon 190/240 Option B/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 190/240 Option C/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 190/240 Select B/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 190/240 Select C/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 40/50 W/M External Non-Condensing Oil 85.0%
GAH Heating Products Thermecon 40/50 W/M Internal B/F Non-Condensing Oil 85.0%
GAH Heating Products Thermecon 40/50 W/M Internal C/F Non-Condensing Oil 85.0%
GAH Heating Products Thermecon 40/60 Option B/F Non-Condensing Oil 85.6%
GAH Heating Products Thermecon 40/60 Option C/F Non-Condensing Oil 85.6%
GAH Heating Products Thermecon 40/60 Select B/F Non-Condensing Oil 85.6%
GAH Heating Products Thermecon 40/60 Select C/F Non-Condensing Oil 85.6%
GAH Heating Products Thermecon 50/80 W/M External Non-Condensing Oil 84.7%
GAH Heating Products Thermecon 50/80 W/M Internal B/F Non-Condensing Oil 84.7%
GAH Heating Products Thermecon 50/80 W/M Internal C/F Non-Condensing Oil 84.7%
GAH Heating Products Thermecon 60/80 Option B/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 60/80 Option C/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 60/80 Select B/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 60/80 Select C/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 60/80 System B/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 60/80 System C/F Non-Condensing Oil 84.4%
GAH Heating Products Thermecon 80/95 Option B/F Non-Condensing Oil 84.2%
GAH Heating Products Thermecon 80/95 Option C/F Non-Condensing Oil 84.2%
GAH Heating Products Thermecon 80/95 Select B/F Non-Condensing Oil 84.2%
GAH Heating Products Thermecon 80/95 Select C/F Non-Condensing Oil 84.2%
GAH Heating Products Thermecon 80/95 System B/F Non-Condensing Oil 84.2%
GAH Heating Products Thermecon 80/95 System C/F Non-Condensing Oil 84.2%
GAH Heating Products Thermecon 90/120 Option B/F Non-Condensing Oil 83.9%
GAH Heating Products Thermecon 90/120 Option C/F Non-Condensing Oil 83.9%
GAH Heating Products Thermecon 90/120 Select B/F Non-Condensing Oil 83.9%
GAH Heating Products Thermecon 90/120 Select C/F Non-Condensing Oil 83.9%
GAH Heating Products Thermecon 90/120 System B/F Non-Condensing Oil 83.9%
GAH Heating Products Thermecon 90/120 System C/F Non-Condensing Oil 83.9%
GEM CC1 15/20 Condensing Oil 89.1%
GEM CC2 20/26 Condensing Oil 89.1%
GEM CC3 26/35 Condensing Oil 89.2%
GEM CC4 35/41 Condensing Oil 89.2%
GEM CKUT1 15/20 Condensing Oil 90.8%
GEM CKUT2 20/26 Condensing Oil 90.8%
GEM CKUT3 26/35 Condensing Oil 90.9%
GEM CKUT4 35/41 Condensing Oil 90.9%
GEM COD C1 15/20 Condensing Oil 89.1%
GEM COD C2 20/26 Condensing Oil 89.1%
GEM COD C3 26/35 Condensing Oil 89.2%
GEM COD C4 35/41 Condensing Oil 89.2%
GEM COD1 15/20 Condensing Oil 90.8%
GEM COD1 SS 15/20 Condensing Oil 90.8%
GEM COD2 20/26 Condensing Oil 90.8%
GEM COD2 SS 20/26 Condensing Oil 90.8%
GEM COD3 26/35 Condensing Oil 90.9%
GEM COD3 SS 26/35 Condensing Oil 90.9%
GEM COD4 35/41 Condensing Oil 90.9%
GEM COD4 SS 35/41 Condensing Oil 90.9%
GEM CS1 15/20 Condensing Oil 90.8%
GEM CS2 20/26 Condensing Oil 90.8%
GEM CS3 26/35 Condensing Oil 90.9%
GEM CS4 35/41 Condensing Oil 90.9%
GEM E-Compact 50/70 Boiler House Condensing Oil 92.0%
GEM E-Compact 50/70 Cosyman Condensing Oil 92.0%
GEM E-Compact 70/90 Boiler House Condensing Oil 91.6%
GEM E-Compact 70/90 Cosyman Condensing Oil 91.6%
Geminox Astrane 30S FIOUL Non-Condensing Oil 84.1%
Geminox FCX Condensing Oil 89.5%
Geminox THI 0.9-9 C Condensing Gas 89.0%
Geminox THI 10-50 C Condensing Gas 88.7%
Geminox THI 2-13 C Condensing Gas 89.0%
Geminox THI 2-13 M75 V Condensing Gas 89.3%
Geminox THI 5-25 C Condensing Gas 89.0%
Geminox THI 5-25 C DC Condensing Gas 89.0%
Geminox THI 5-25 M75 Condensing Gas 89.3%
Geminox THI 5-25 SEP Condensing Gas 88.9%
Geminox THI 5-25S Condensing Gas 89.3%
Geminox THR 10-50 Condensing Gas 88.7%
Geminox THR 2-13C Condensing Gas 89.0%
Geminox THR 5-25 M75 Condensing Gas 89.5%
Geminox THR 5-25C Condensing Gas 89.0%
Geminox THR 5-25S Condensing Gas 89.4%
Geminox THR 5-25SEP Condensing Gas 88.9%
Gerkros 14.6 – 20.5 kW Oil Condensing Combi Boiler Condensing Oil 89.0%
Gerkros 20.5 – 26.4 kW Oil Condensing Combi Boiler Condensing Oil 89.1%
Gerkros 50 70 Oil Condensing Boiler Boiler House Model Condensing Oil 89.8%
Gerkros 50 70 Oil Condensing Boiler Cosyman Condensing Oil 89.8%
Gerkros 50 70 Oil Condensing Boiler Utility Model Condensing Oil 89.8%
Gerkros 70 90 Oil Condensing Boiler Boiler House Model Condensing Oil 90.1%
Gerkros 70 90 Oil Condensing Boiler Cosyman Condensing Oil 90.1%
Gerkros 70 90 Oil Condensing Boiler Utility Model Condensing Oil 90.1%
Gerkros 90 120 Oil Condensing Boiler Boiler House Model Condensing Oil 89.9%
Gerkros 90 120 Oil Condensing Boiler Cosyman Condensing Oil 89.9%
Gerkros 90 120 Oil Condensing Boiler Utility Model Condensing Oil 89.9%
Gerkros Cozy Mann 50/70 fdc Non-Condensing Oil 84.0%
Gerkros Cozy Mann 60/95 tdc Non-Condensing Oil 82.5%
Gerkros Cozy Mann 80/105 fdc Non-Condensing Oil 82.0%
Gerkros Cozy Mann 90/120 tdc Non-Condensing Oil 82.1%
Gerkros Gem fdc 50/70 Non-Condensing Oil 84.0%
Gerkros Gem fdc 80/105 Non-Condensing Oil 82.0%
Gerkros Gem Superior id 90/120 Non-Condensing Oil 82.1%
Gerkros Gem Top Cleaner 60/95 Non-Condensing Oil 82.5%
Gerkros Gem Top Cleaner 90/120 Non-Condensing Oil 82.1%
Gerkros Termogas KST Condensing Gas 85.3%
Gerkros Termogas KT Condensing Gas 88.2%
Gerkros Termogas KT/A Condensing Gas 88.4%
Gledhill GB10 AGB5010 Condensing Gas 89.2%
Gledhill GB15 AGB5015 Condensing Gas 88.8%
Gledhill GB20 AGB5020 Condensing Gas 88.9%
Gledhill GB25 AGB5025 Condensing Gas 89.3%
Gledhill GB30 AGB5030 Condensing Gas 89.3%
Gledhill GB35C AGB5035 Condensing Gas 89.3%
Gledhill Gulfstream 2000 GS2000/120/E Condensing Gas 86.9%
Gledhill Gulfstream 2000 GS2000/120/E-OV Condensing Gas 86.9%
Gledhill Gulfstream 2000 GS2000/130/E Condensing Gas 87.5%
Gledhill Gulfstream 2000 GS2000/130/E-OV Condensing Gas 87.5%
Gledhill GulfStream A-Class 12/OV Condensing Gas 90.2%
Gledhill GulfStream A-Class 12/SS Condensing Gas 90.2%
Gledhill GulfStream A-Class 20/OV Condensing Gas 90.0%
Gledhill GulfStream A-Class 20/SS Condensing Gas 90.0%
Gledhill GulfStream A-Class 30/OV Condensing Gas 88.6%
Gledhill GulfStream A-Class 30/SS Condensing Gas 88.6%
Glotec Glotec gt80 Condensing Gas 83.0%
Glow-worm 105-120 105-120 Non-Condensing Gas 65.0%
Glow-worm 105-120B 105-120B Non-Condensing Gas 65.0%
Glow-worm 12hxi Condensing Gas 88.7%
Glow-worm 15hxi Condensing Gas 88.7%
Glow-worm 18hxi Condensing Gas 88.6%
Glow-worm 18sxi Condensing Gas 88.6%
Glow-worm 23c Non-Condensing Gas 79.9%
Glow-worm 240 Non-Condensing Gas 65.0%
Glow-worm 246 Non-Condensing Gas 65.0%
Glow-worm 24ci Non-Condensing Gas 78.3%
Glow-worm 24ci Plus Non-Condensing Gas 78.3%
Glow-worm 24cxi Condensing Gas 88.5%
Glow-worm 24hxi Condensing Gas 88.9%
Glow-worm 30 ci Non-Condensing Gas 79.6%
Glow-worm 30 si Non-Condensing Gas 79.7%
Glow-worm 30ci Plus Non-Condensing Gas 79.6%
Glow-worm 30cxi Condensing Gas 88.5%
Glow-worm 30hxi Condensing Gas 88.7%
Glow-worm 30sxi Condensing Gas 88.7%
Glow-worm 35ci Non-Condensing Gas 78.6%
Glow-worm 38cxi Condensing Gas 88.5%
Glow-worm 38hxi Condensing Gas 89.2%
Glow-worm 45 Non-Condensing Gas 65.0%
Glow-worm 45-60 45-60 Non-Condensing Gas 65.0%
Glow-worm 45-60B 45-60B Non-Condensing Gas 65.0%
Glow-worm 45/2 BBU Non-Condensing Gas 68.4%
Glow-worm 45/4 BBU Non-Condensing Gas 78.4%
Glow-worm 45F Non-Condensing Gas 65.0%
Glow-worm 45FR Non-Condensing Gas 65.0%
Glow-worm 54/4 BBU Non-Condensing Gas 78.9%
Glow-worm 56 Non-Condensing Gas 65.0%
Glow-worm 56/2 BBU Non-Condensing Gas 68.1%
Glow-worm 56/3e BBU Non-Condensing Gas 78.5%
Glow-worm 56/3pp BBU Non-Condensing Gas 74.5%
Glow-worm 56F Non-Condensing Gas 65.0%
Glow-worm 56FR Non-Condensing Gas 65.0%
Glow-worm 65-80 65-80 Non-Condensing Gas 65.0%
Glow-worm 65-80B 65-80B Non-Condensing Gas 65.0%
Glow-worm 85-100 85-100 Non-Condensing Gas 65.0%
Glow-worm 85-100B 85-100B Non-Condensing Gas 65.0%
Glow-worm BBU 45/4 Black Beauty 4 Non-Condensing Gas 78.4%
Glow-worm BBU 45/4 Chatsworth 4 Non-Condensing Gas 79.5%
Glow-worm BBU 45/4 Contour 4 Non-Condensing Gas 78.4%
Glow-worm BBU 45/4 Dovedale 4 Non-Condensing Gas 79.5%
Glow-worm BBU 45/4 Firelite 4 Non-Condensing Gas 78.4%
Glow-worm BBU 45/4 Heartbeat 4 Non-Condensing Gas 78.4%
Glow-worm BBU 45/4 Miami 4 Non-Condensing Gas 78.4%
Glow-worm BBU 54/4 Black Beauty 4 Non-Condensing Gas 78.8%
Glow-worm BBU 54/4 Chatsworth 4 Non-Condensing Gas 79.4%
Glow-worm BBU 54/4 Contour 4 Non-Condensing Gas 78.8%
Glow-worm BBU 54/4 Dovedale 4 Non-Condensing Gas 79.4%
Glow-worm BBU 54/4 Firelite 4 Non-Condensing Gas 78.8%
Glow-worm BBU 54/4 Heartbeat 4 Non-Condensing Gas 78.8%
Glow-worm BBU 54/4 Miami 4 Non-Condensing Gas 78.8%
Glow-worm Betacom 24 Condensing Gas 85.9%
Glow-worm Betacom 24a Condensing Gas 89.0%
Glow-worm Betacom 24c Condensing Gas 85.6%
Glow-worm Betacom 28a Condensing Gas 89.2%
Glow-worm Betacom 30 Condensing Gas 86.2%
Glow-worm Betacom 30c Condensing Gas 85.7%
Glow-worm BETACOM 4 30c-A (H-GB) Condensing Gas 89.6%
Glow-worm Betacom2 24 Condensing Gas 89.0%
Glow-worm Betacom2 28 Condensing Gas 88.5%
Glow-worm Betacom3 24c Condensing Gas 89.2%
Glow-worm Betacom3 30c Condensing Gas 89.2%
Glow-worm Camelot 240/6 Non-Condensing Gas 65.0%
Glow-worm Capricorn 240/6 Non-Condensing Gas 65.0%
Glow-worm Capricorn 246 Non-Condensing Gas 65.0%
Glow-worm Compact 100 System A Non-Condensing Gas 79.3%
Glow-worm Compact 100e Non-Condensing Gas 78.2%
Glow-worm Compact 100e A Non-Condensing Gas 79.2%
Glow-worm Compact 100p Non-Condensing Gas 71.6%
Glow-worm Compact 60 System A Non-Condensing Gas 79.5%
Glow-worm Compact 75e Non-Condensing Gas 77.5%
Glow-worm Compact 75p Non-Condensing Gas 72.1%
Glow-worm Compact 80e Non-Condensing Gas 77.8%
Glow-worm Compact 80e A Non-Condensing Gas 79.5%
Glow-worm Compact 80p Non-Condensing Gas 72.2%
Glow-worm Easicom 2 24c Condensing Gas 89.2%
Glow-worm Easicom 2 28c Condensing Gas 89.2%
Glow-worm Easicom 24 Condensing Gas 89.0%
Glow-worm Easicom 28 Condensing Gas 88.5%
Glow-worm EASICOM 3 25r Condensing Gas 89.7%
Glow-worm EASICOM 3 25s Condensing Gas 89.7%
Glow-worm EASICOM 3 28c-A (H-GB) Condensing Gas 89.6%
Glow-worm Economy Plus 100f Non-Condensing Gas 72.0%
Glow-worm Economy Plus 24B Non-Condensing Gas 75.1%
Glow-worm Economy Plus 24F Non-Condensing Gas 77.2%
Glow-worm Economy Plus 30B Non-Condensing Gas 71.3%
Glow-worm Economy Plus 30C Non-Condensing Gas 72.4%
Glow-worm Economy Plus 30F Non-Condensing Gas 75.7%
Glow-worm Economy Plus 40B Non-Condensing Gas 71.9%
Glow-worm Economy Plus 40C Non-Condensing Gas 71.9%
Glow-worm Economy Plus 40F Non-Condensing Gas 77.0%
Glow-worm Economy Plus 50B Non-Condensing Gas 73.1%
Glow-worm Economy Plus 50C Non-Condensing Gas 72.4%
Glow-worm Economy Plus 50F Non-Condensing Gas 76.3%
Glow-worm Economy Plus 60B Non-Condensing Gas 75.4%
Glow-worm Economy Plus 60C Non-Condensing Gas 73.8%
Glow-worm Economy Plus 60F Non-Condensing Gas 75.8%
Glow-worm Economy Plus 75B Non-Condensing Gas 65.0%
Glow-worm Economy Plus 80F Non-Condensing Gas 77.6%
Glow-worm ENERGY 12r Condensing Gas 89.3%
Glow-worm ENERGY 12s Condensing Gas 89.3%
Glow-worm ENERGY 15r Condensing Gas 89.3%
Glow-worm ENERGY 15s Condensing Gas 89.3%
Glow-worm ENERGY 18r Condensing Gas 89.3%
Glow-worm ENERGY 18s Condensing Gas 89.3%
Glow-worm Energy 25c Condensing Gas 89.2%
Glow-worm ENERGY 25r Condensing Gas 89.3%
Glow-worm ENERGY 25s Condensing Gas 89.3%
Glow-worm Energy 30c Condensing Gas 89.2%
Glow-worm ENERGY 30r Condensing Gas 89.2%
Glow-worm ENERGY 30s Condensing Gas 89.2%
Glow-worm Energy 35 Store Condensing Gas 89.4%
Glow-worm Energy 35c Condensing Gas 89.2%
Glow-worm Energysaver 30 Condensing Gas 85.9%
Glow-worm Energysaver 30e Condensing Gas 85.9%
Glow-worm Energysaver 40 Condensing Gas 86.0%
Glow-worm Energysaver 40e Condensing Gas 86.0%
Glow-worm Energysaver 40P Condensing LPG 86.4%
Glow-worm Energysaver 50 Condensing Gas 86.1%
Glow-worm Energysaver 50e Condensing Gas 86.1%
Glow-worm Energysaver 50P Condensing LPG 86.5%
Glow-worm Energysaver 60 Condensing Gas 86.2%
Glow-worm Energysaver 60e Condensing Gas 86.2%
Glow-worm Energysaver 60P Condensing LPG 86.5%
Glow-worm Energysaver 70 Condensing Gas 86.6%
Glow-worm Energysaver 80 Condensing Gas 86.6%
Glow-worm Energysaver 80P Condensing LPG 87.6%
Glow-worm Energysaver Combi 100 Condensing Gas 89.2%
Glow-worm Energysaver Combi 80 Condensing Gas 89.4%
Glow-worm Essential 24c Condensing Gas 89.2%
Glow-worm Essential 28c Condensing Gas 89.2%
Glow-worm Flexicom 12hx Condensing Gas 88.5%
Glow-worm Flexicom 15hx Condensing Gas 88.5%
Glow-worm Flexicom 18hx Condensing Gas 88.4%
Glow-worm Flexicom 18sx Condensing Gas 88.4%
Glow-worm Flexicom 24cx Condensing Gas 88.4%
Glow-worm Flexicom 24hx Condensing Gas 88.4%
Glow-worm Flexicom 30cx Condensing Gas 88.3%
Glow-worm Flexicom 30hx Condensing Gas 88.7%
Glow-worm Flexicom 30sx Condensing Gas 88.8%
Glow-worm Flexicom 35cx Condensing Gas 89.1%
Glow-worm Flexicom 35hx Condensing Gas 89.2%
Glow-worm Fuelsaver 100F Non-Condensing Gas 72.0%
Glow-worm Fuelsaver 25-30 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 25-30B Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 30-40 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 30-40B Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 30bmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 30brmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 30mk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 35f Non-Condensing Gas 68.0%
Glow-worm Fuelsaver 40-50 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 40-50b Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 40bmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 40brmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 40mk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 45f Non-Condensing Gas 68.0%
Glow-worm Fuelsaver 50bmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 50brmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 50mk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 55-60b Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 55f Non-Condensing Gas 68.0%
Glow-worm Fuelsaver 60-70b Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 60bmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 60brmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 60mk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 65f Non-Condensing Gas 68.0%
Glow-worm Fuelsaver 75bmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 75brmk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 75mk2 Non-Condensing Gas 65.0%
Glow-worm Fuelsaver 80f Non-Condensing Gas 68.0%
Glow-worm Fuelsaver Complheat 30 Non-Condensing Gas 76.5%
Glow-worm Fuelsaver Complheat 40 Non-Condensing Gas 76.7%
Glow-worm Fuelsaver Complheat 55 Non-Condensing Gas 76.4%
Glow-worm Fuelsaver Complheat 65 Non-Condensing Gas 79.1%
Glow-worm Fuelsaver Complheat 80 Non-Condensing Gas 79.0%
Glow-worm Fuelsaver Economy Plus 24B Non-Condensing Gas 65.0%
Glow-worm Fuelsaver Economy Plus 24F Non-Condensing Gas 68.0%
Glow-worm Fuelsaver Economy Plus 30B Non-Condensing Gas 65.0%
Glow-worm Fuelsaver Economy Plus 30F Non-Condensing Gas 68.0%
Glow-worm Fuelsaver Economy Plus 40B Non-Condensing Gas 65.0%
Glow-worm Fuelsaver Economy Plus 40C Non-Condensing Gas 65.0%
Glow-worm Fuelsaver Economy Plus 40F Non-Condensing Gas 68.0%
Glow-worm Fuelsaver Economy Plus 50C Non-Condensing Gas 65.0%
Glow-worm Fuelsaver Economy Plus 50F Non-Condensing Gas 68.0%
Glow-worm Fuelsaver Economy Plus 60B Non-Condensing Gas 65.0%
Glow-worm Fuelsaver Economy Plus 60C Non-Condensing Gas 65.0%
Glow-worm Fuelsaver Economy Plus 60F Non-Condensing Gas 68.0%
Glow-worm Fuelsaver Economy Plus 80F Non-Condensing Gas 68.0%
Glow-worm Galaxie 240/6 Non-Condensing Gas 65.0%
Glow-worm Galaxie 246 Non-Condensing Gas 65.0%
Glow-worm Glow-Worm 18si Non-Condensing Gas 76.8%
Glow-worm Hideaway 100 Non-Condensing Gas 72.1%
Glow-worm Hideaway 100B Non-Condensing Gas 73.0%
Glow-worm Hideaway 100BFF Non-Condensing Gas 79.9%
Glow-worm Hideaway 100CFF Non-Condensing Gas 79.9%
Glow-worm Hideaway 115BFF Non-Condensing Gas 78.7%
Glow-worm Hideaway 115CFF Non-Condensing Gas 78.7%
Glow-worm Hideaway 120 Non-Condensing Gas 73.0%
Glow-worm Hideaway 120B Non-Condensing Gas 72.0%
Glow-worm Hideaway 40 Non-Condensing Gas 70.8%
Glow-worm Hideaway 40B Non-Condensing Gas 71.5%
Glow-worm Hideaway 40BFF Non-Condensing Gas 78.3%
Glow-worm Hideaway 40CFF Non-Condensing Gas 78.3%
Glow-worm Hideaway 50 Non-Condensing Gas 71.0%
Glow-worm Hideaway 50B Non-Condensing Gas 71.4%
Glow-worm Hideaway 50BFF Non-Condensing Gas 78.2%
Glow-worm Hideaway 50CFF Non-Condensing Gas 78.2%
Glow-worm Hideaway 60 Non-Condensing Gas 71.3%
Glow-worm Hideaway 60B Non-Condensing Gas 71.7%
Glow-worm Hideaway 60BFF Non-Condensing Gas 78.5%
Glow-worm Hideaway 60BL Non-Condensing Gas 65.0%
Glow-worm Hideaway 60CFF Non-Condensing Gas 78.5%
Glow-worm Hideaway 60L Non-Condensing Gas 65.0%
Glow-worm Hideaway 70 Non-Condensing Gas 71.8%
Glow-worm Hideaway 70B Non-Condensing Gas 72.5%
Glow-worm Hideaway 70of Non-Condensing Gas 65.0%
Glow-worm Hideaway 80 Non-Condensing Gas 71.7%
Glow-worm Hideaway 80B Non-Condensing Gas 72.6%
Glow-worm Hideaway 80BFF Non-Condensing Gas 78.4%
Glow-worm Hideaway 80BL Non-Condensing Gas 65.0%
Glow-worm Hideaway 80CFF Non-Condensing Gas 78.4%
Glow-worm Hideaway 80L Non-Condensing Gas 65.0%
Glow-worm Hideaway 90 Non-Condensing Gas 71.7%
Glow-worm Hideaway 90B Non-Condensing Gas 72.8%
Glow-worm Hideaway 90of Non-Condensing Gas 65.0%
Glow-worm HOME 12r Condensing Gas 89.3%
Glow-worm HOME 12s Condensing Gas 89.3%
Glow-worm HOME 15r Condensing Gas 89.3%
Glow-worm HOME 15s Condensing Gas 89.3%
Glow-worm HOME 18r Condensing Gas 89.3%
Glow-worm HOME 18s Condensing Gas 89.3%
Glow-worm HOME 25c Condensing Gas 89.3%
Glow-worm HOME 25r Condensing Gas 89.3%
Glow-worm HOME 25s Condensing Gas 89.3%
Glow-worm HOME 30c Condensing Gas 89.3%
Glow-worm HOME 30r Condensing Gas 89.2%
Glow-worm HOME 35c Condensing Gas 89.3%
Glow-worm Inset BBU 40 Non-Condensing Gas 75.5%
Glow-worm Inset BBU 50 Non-Condensing Gas 77.6%
Glow-worm Majorca 240/6 Non-Condensing Gas 65.0%
Glow-worm Majorca 246 Non-Condensing Gas 65.0%
Glow-worm Majorca 340/6 Non-Condensing Gas 65.0%
Glow-worm Majorca 340/6auto Non-Condensing Gas 65.0%
Glow-worm Majorca 346 Non-Condensing Gas 65.0%
Glow-worm Micron 100FF Non-Condensing Gas 79.5%
Glow-worm Micron 120FF Non-Condensing Gas 78.1%
Glow-worm Micron 30 FF Non-Condensing Gas 78.3%
Glow-worm Micron 30FF Non-Condensing Gas 76.6%
Glow-worm Micron 40 FF Non-Condensing Gas 78.7%
Glow-worm Micron 40FF Non-Condensing Gas 77.3%
Glow-worm Micron 50FF Non-Condensing Gas 78.9%
Glow-worm Micron 60 FF Non-Condensing Gas 78.8%
Glow-worm Micron 60FF Non-Condensing Gas 77.2%
Glow-worm Micron 70 FF Non-Condensing Gas 78.3%
Glow-worm Micron 70FF Non-Condensing Gas 77.4%
Glow-worm Micron 80 FF Non-Condensing Gas 78.3%
Glow-worm Micron 80FF Non-Condensing Gas 77.2%
Glow-worm Micron100FF Non-Condensing Gas 77.5%
Glow-worm PROCOMBI ESSENTIAL 24c P – A (H-GB) Condensing LPG 91.1%
Glow-worm PROCOMBI ESSENTIAL 35c Condensing Gas 89.7%
Glow-worm Royale 240/6 Non-Condensing Gas 65.0%
Glow-worm Royale 246 Non-Condensing Gas 65.0%
Glow-worm Saunier Duval SB30e A Non-Condensing Gas 79.3%
Glow-worm Saunier Duval SD30e A Non-Condensing Gas 79.2%
Glow-worm Spacesaver 20-30f Non-Condensing Gas 68.0%
Glow-worm Spacesaver 20-30rf Non-Condensing Gas 68.0%
Glow-worm Spacesaver 20-30rfs Non-Condensing Gas 68.0%
Glow-worm Spacesaver 22-30b Non-Condensing Gas 65.0%
Glow-worm Spacesaver 22-30f Non-Condensing Gas 65.0%
Glow-worm Spacesaver 30-40f Non-Condensing Gas 68.0%
Glow-worm Spacesaver 30-40rf Non-Condensing Gas 68.0%
Glow-worm Spacesaver 30-40rfs Non-Condensing Gas 68.0%
Glow-worm Spacesaver 30bmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 30brmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 30mk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 30rmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 38 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 38bf Non-Condensing Gas 65.0%
Glow-worm Spacesaver 40-50rf Non-Condensing Gas 68.0%
Glow-worm Spacesaver 40-50rfs Non-Condensing Gas 68.0%
Glow-worm Spacesaver 40bmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 40brmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 40f Non-Condensing Gas 68.0%
Glow-worm Spacesaver 40mk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 40rmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 45-60 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 45-60b Non-Condensing Gas 65.0%
Glow-worm Spacesaver 50-60rf Non-Condensing Gas 68.0%
Glow-worm Spacesaver 50-60rfs Non-Condensing Gas 68.0%
Glow-worm Spacesaver 50bf Non-Condensing Gas 65.0%
Glow-worm Spacesaver 50bmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 50f Non-Condensing Gas 68.0%
Glow-worm Spacesaver 50mk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 50rmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 52 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 60bmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 60brmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 60f Non-Condensing Gas 68.0%
Glow-worm Spacesaver 60mk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 60rmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 65-75f Non-Condensing Gas 68.0%
Glow-worm Spacesaver 75 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 75bf Non-Condensing Gas 65.0%
Glow-worm Spacesaver 80bmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver 80brmk2 Non-Condensing Gas 65.0%
Glow-worm Spacesaver Complheat 60 Non-Condensing Gas 72.0%
Glow-worm Spacesaver Complheat 70 Non-Condensing Gas 72.0%
Glow-worm Spacesaver Kfb 20 Non-Condensing Gas 68.0%
Glow-worm Spacesaver Kfb 60 Non-Condensing Gas 68.0%
Glow-worm Spacesaver Kfb 70 Non-Condensing Gas 68.0%
Glow-worm Suburban Suburban Non-Condensing Gas 65.0%
Glow-worm Super 30 Non-Condensing Gas 65.0%
Glow-worm Super 30b Non-Condensing Gas 65.0%
Glow-worm Super 40 Non-Condensing Gas 65.0%
Glow-worm Super 40b Non-Condensing Gas 65.0%
Glow-worm Super 52 Non-Condensing Gas 65.0%
Glow-worm Super 52b Non-Condensing Gas 65.0%
Glow-worm SUSTAIN 12r Condensing Gas 89.3%
Glow-worm SUSTAIN 12s Condensing Gas 89.3%
Glow-worm SUSTAIN 15r Condensing Gas 89.3%
Glow-worm SUSTAIN 15s Condensing Gas 89.3%
Glow-worm SUSTAIN 18r Condensing Gas 89.3%
Glow-worm SUSTAIN 18s Condensing Gas 89.3%
Glow-worm SUSTAIN 25c Condensing Gas 89.3%
Glow-worm SUSTAIN 30c Condensing Gas 89.3%
Glow-worm SUSTAIN 35c Condensing Gas 89.3%
Glow-worm Swiftflow 100 Non-Condensing Gas 70.0%
Glow-worm Swiftflow 100 Honeywell valve Non-Condensing Gas 70.7%
Glow-worm Swiftflow 100 SIT valve Non-Condensing Gas 70.7%
Glow-worm Swiftflow 100e Non-Condensing Gas 76.6%
Glow-worm Swiftflow 120 Non-Condensing Gas 73.1%
Glow-worm Swiftflow 125e Non-Condensing Gas 79.4%
Glow-worm Swiftflow 75 Non-Condensing Gas 70.0%
Glow-worm Swiftflow 75 Honeywell valve Non-Condensing Gas 71.4%
Glow-worm Swiftflow 75 SIT valve Non-Condensing Gas 71.4%
Glow-worm Swiftflow 75e Non-Condensing Gas 76.5%
Glow-worm Swiftflow 80 Non-Condensing Gas 70.0%
Glow-worm Swiftflow 80 Honeywell valve Non-Condensing Gas 73.1%
Glow-worm Swiftflow 80 SIT valve Non-Condensing Gas 73.1%
Glow-worm Swiftflow 80e Non-Condensing Gas 76.6%
Glow-worm Ultimate 100 FF Non-Condensing Gas 79.5%
Glow-worm Ultimate 100FF Non-Condensing Gas 77.5%
Glow-worm Ultimate 120FF Non-Condensing Gas 78.1%
Glow-worm Ultimate 2 25r Condensing Gas 89.3%
Glow-worm ULTIMATE 2 25s Condensing Gas 89.3%
Glow-worm ULTIMATE 2 30C Condensing Gas 89.2%
Glow-worm ULTIMATE 2 35c Condensing Gas 89.2%
Glow-worm Ultimate 24h Condensing Gas 88.4%
Glow-worm ULTIMATE 3 25r-A (H-GB) Condensing Gas 89.6%
Glow-worm ULTIMATE 3 25s-A (H-GB) Condensing Gas 89.7%
Glow-worm ULTIMATE 3 30c-A (H-GB) Condensing Gas 89.6%
Glow-worm ULTIMATE 3 35c-A (H-GB) Condensing Gas 89.7%
Glow-worm Ultimate 30BF Non-Condensing Gas 73.0%
Glow-worm Ultimate 30c Condensing Gas 88.9%
Glow-worm Ultimate 30FF Non-Condensing Gas 79.7%
Glow-worm Ultimate 30FF/LP Non-Condensing LPG 78.0%
Glow-worm Ultimate 35c Condensing Gas 88.8%
Glow-worm Ultimate 40 FF Non-Condensing Gas 78.7%
Glow-worm Ultimate 40BF Non-Condensing Gas 72.1%
Glow-worm Ultimate 40FF Non-Condensing Gas 75.4%
Glow-worm Ultimate 40FF/LP Non-Condensing LPG 78.0%
Glow-worm Ultimate 50 FF Non-Condensing Gas 78.8%
Glow-worm Ultimate 50BF Non-Condensing Gas 73.1%
Glow-worm Ultimate 50BF/LP Non-Condensing LPG 74.8%
Glow-worm Ultimate 50FF Non-Condensing Gas 76.0%
Glow-worm Ultimate 50FF/LP Non-Condensing LPG 80.1%
Glow-worm Ultimate 60 FF Non-Condensing Gas 79.4%
Glow-worm Ultimate 60BF Non-Condensing Gas 75.6%
Glow-worm Ultimate 60FF Non-Condensing Gas 76.6%
Glow-worm Ultimate 60FF/LP Non-Condensing LPG 77.5%
Glow-worm Ultimate 70 FF Non-Condensing Gas 79.3%
Glow-worm Ultimate 70FF Non-Condensing Gas 77.1%
Glow-worm Ultimate 80 FF Non-Condensing Gas 79.4%
Glow-worm Ultimate 80bf Non-Condensing Gas 65.0%
Glow-worm Ultimate 80FF Non-Condensing Gas 76.3%
Glow-worm Ultimate 80FF/LP Non-Condensing LPG 79.8%
Glow-worm Ultracom 12hxi Condensing Gas 88.7%
Glow-worm Ultracom 15hxi Condensing Gas 88.7%
Glow-worm Ultracom 18hxi Condensing Gas 88.6%
Glow-worm Ultracom 18sxi Condensing Gas 88.6%
Glow-worm Ultracom 2 12sxi Condensing Gas 89.5%
Glow-worm Ultracom 2 18sxi Condensing Gas 89.1%
Glow-worm Ultracom 2 24cxi Condensing Gas 89.0%
Glow-worm Ultracom 2 30cxi Condensing Gas 89.3%
Glow-worm Ultracom 2 30sxi Condensing Gas 89.4%
Glow-worm Ultracom 2 35 Store Condensing Gas 89.4%
Glow-worm Ultracom 2 35cxi Condensing Gas 89.3%
Glow-worm Ultracom 24cx Condensing Gas 88.5%
Glow-worm Ultracom 24cxi Condensing Gas 88.5%
Glow-worm Ultracom 24hxi Condensing Gas 88.9%
Glow-worm Ultracom 30cx Condensing Gas 88.7%
Glow-worm Ultracom 30cxi Condensing Gas 88.5%
Glow-worm Ultracom 30hxi Condensing Gas 88.7%
Glow-worm Ultracom 30sxi Condensing Gas 88.8%
Glow-worm Ultracom 38cxi Condensing Gas 88.5%
Glow-worm Ultracom 38hxi Condensing Gas 89.2%
Glow-worm Ultrapower 100 SXI Condensing Gas 89.2%
Glow-worm Ultrapower 170 SXI Condensing Gas 89.3%
Glow-worm Xtrafast 120 Non-Condensing Gas 78.6%
Glow-worm Xtrafast 96 Non-Condensing Gas 79.4%
Glow-worm Xtramax A Non-Condensing Gas 78.9%
Glow-worm Xtramax HE Condensing LPG 90.2%
Grandee GCCF 15/23 Condensing Oil 88.5%
Grandee GCCF 23/30 Condensing Oil 88.1%
Grandee GCCW 15/22 Condensing Oil 88.5%
Grandee GCCW 15/22 Ext Condensing Oil 88.5%
Grandee GCCW 23/28 Condensing Oil 88.1%
Grandee GCCW 23/28 Ext Condensing Oil 88.1%
Grandee GCF 10-15 Condensing Oil 89.5%
Grandee GCF 15/23 Condensing Oil 90.2%
Grandee GCF 23/30 Condensing Oil 89.8%
Grandee GCW 10-15 Condensing Oil 89.5%
Grandee GCW 10-15 Ext Condensing Oil 89.5%
Grandee GCW 15/22 Condensing Oil 90.2%
Grandee GCW 15/22 Ext Condensing Oil 90.2%
Grandee GCW 23/28 Condensing Oil 89.8%
Grandee GCW 23/28 Ext Condensing Oil 89.8%
Grandee GSCF 10-15 Condensing Oil 89.5%
Grandee GSCF 15/23 Condensing Oil 90.2%
Grandee GSCF 23/30 Condensing Oil 89.8%
Grandee GSCW 10-15 Condensing Oil 89.5%
Grandee GSCW 10-15 Ext Condensing Oil 89.5%
Grandee GSCW 15/22 Condensing Oil 90.2%
Grandee GSCW 15/22 Ext Condensing Oil 90.2%
Grandee GSCW 23/28 Condensing Oil 89.8%
Grandee GSCW 23/28 Ext Condensing Oil 89.8%
Grant Combi 70 Mk II Non-Condensing Oil 83.0%
Grant Combi 70 V3 Non-Condensing Oil 83.0%
Grant Combi 90 Mk II Non-Condensing Oil 83.9%
Grant Combi 90 V3 Non-Condensing Oil 82.7%
Grant Combi Max Non-Condensing Oil 82.2%
Grant Euroflame 90-120 Boilerhouse Non-Condensing Oil 84.4%
Grant Euroflame 90-120 Outdoor Non-Condensing Oil 84.4%
Grant Euroflame 90-120 System Kitchen Utility Non-Condensing Oil 84.4%
Grant Euroflame Boilerhouse 50-70 Non-Condensing Oil 84.7%
Grant Euroflame Boilerhouse 70-90 Non-Condensing Oil 84.7%
Grant Euroflame Condensing Boilerhouse 50-70 Condensing Oil 90.8%
Grant Euroflame Condensing Boilerhouse 70-90 Condensing Oil 90.6%
Grant Euroflame Condensing Boilerhouse 90-120 Condensing Oil 90.3%
Grant Euroflame Condensing Indoor 50-70 Condensing Oil 90.8%
Grant Euroflame Condensing Indoor 70-90 Condensing Oil 90.6%
Grant Euroflame Condensing Indoor 90-120 Condensing Oil 90.3%
Grant Euroflame Condensing Module 50-70 Condensing Oil 90.8%
Grant Euroflame Condensing Module 70-90 Condensing Oil 90.6%
Grant Euroflame Condensing Module 90-120 Condensing Oil 90.3%
Grant Euroflame Kitchen / Utility 50-70 Non-Condensing Oil 84.7%
Grant Euroflame Kitchen / Utility 70-90 Non-Condensing Oil 84.7%
Grant Euroflame Kitchen/Utility 90-120 Non-Condensing Oil 84.4%
Grant Euroflame Outdoor Module 50-70 Non-Condensing Oil 84.7%
Grant Euroflame Outdoor Module 70-90 Non-Condensing Oil 84.7%
Grant Euroflame System 50-90 Non-Condensing Oil 84.7%
Grant Multipass Boilerhouse 110-140 Non-Condensing Oil 85.4%
Grant Multipass Boilerhouse 140-160 Non-Condensing Oil 85.6%
Grant Multipass Boilerhouse 160-200 Non-Condensing Oil 85.6%
Grant Multipass Boilerhouse 70-90 Non-Condensing Oil 85.6%
Grant Multipass Boilerhouse 90-110 Non-Condensing Oil 85.4%
Grant Multipass Kitchen 110-140 Non-Condensing Oil 85.4%
Grant Multipass Kitchen 140-160 Non-Condensing Oil 85.6%
Grant Multipass Kitchen 160-200 Non-Condensing Oil 85.6%
Grant Multipass Kitchen 50-70 Non-Condensing Oil 85.6%
Grant Multipass Kitchen 70-90 Non-Condensing Oil 85.6%
Grant Multipass Kitchen 90-110 Non-Condensing Oil 85.4%
Grant Multipass Outdoor 110-140 Non-Condensing Oil 85.4%
Grant Multipass System 110-140 Non-Condensing Oil 85.4%
Grant Multipass System 50-70 Non-Condensing Oil 85.6%
Grant Multipass System 70-90 Non-Condensing Oil 85.6%
Grant Multipass System 90-110 Non-Condensing Oil 85.4%
Grant Outdoor Combi 90 V3 Non-Condensing Oil 82.7%
Grant Outdoor Combi Max Non-Condensing Oil 82.2%
Grant Outdoor Combi Mk II Non-Condensing Oil 83.9%
Grant Vortex 15 Condensing Oil 91.1%
Grant Vortex 15 S Condensing Oil 91.1%
Grant Vortex 15-26 Kitchen Boiler Condensing Oil 91.9%
Grant Vortex 15-26S Kitchen Boiler Condensing Oil 91.9%
Grant Vortex 20 Condensing Oil 91.5%
Grant Vortex 20 S Condensing Oil 91.5%
Grant Vortex 20G Boilerhouse Condensing Oil 92.9%
Grant Vortex 20G Boilerhouse System Condensing Oil 92.9%
Grant Vortex 20G Outdoor Module Condensing Oil 92.9%
Grant Vortex 20G Outdoor Module System Condensing Oil 92.9%
Grant Vortex 20G Utility Condensing Oil 92.9%
Grant Vortex 20G Utility System Condensing Oil 92.9%
Grant Vortex 26 Condensing Oil 91.9%
Grant Vortex 26 S Condensing Oil 91.9%
Grant Vortex 26-36 Boilerhouse Condensing Oil 93.3%
Grant Vortex 26-36 Boilerhouse System Condensing Oil 93.3%
Grant Vortex 26-36 Outdoor Module System Condensing Oil 93.3%
Grant Vortex 26-36 Utility Boiler Condensing Oil 93.3%
Grant Vortex 26-36-S Utility System Boiler Condensing Oil 93.3%
Grant Vortex 30G Boilerhouse Condensing Oil 92.5%
Grant Vortex 30G Boilerhouse System Condensing Oil 92.5%
Grant Vortex 30G Outdoor Module Condensing Oil 92.5%
Grant Vortex 30G Outdoor Module System Condensing Oil 92.5%
Grant Vortex 30G Utility Condensing Oil 92.5%
Grant Vortex 30G Utility System Condensing Oil 92.5%
Grant Vortex 36 Condensing Oil 93.3%
Grant Vortex 36S Condensing Oil 93.3%
Grant VORTEX BOILERHOUSE 15-21 Condensing Oil 90.8%
Grant VORTEX BOILERHOUSE 21-26 Condensing Oil 90.6%
Grant VORTEX BOILERHOUSE 26-35 Condensing Oil 90.3%
Grant Vortex Condensing Combi 21 Condensing Oil 89.5%
Grant Vortex Condensing Combi 26 Condensing Oil 90.2%
Grant Vortex Condensing Combi 36 Condensing Oil 91.6%
Grant Vortex Eco External 15-21 Condensing Oil 90.8%
Grant Vortex Eco External 21-26 Condensing Oil 90.6%
Grant Vortex Eco External 26-35 Condensing Oil 90.3%
Grant Vortex Eco External System 15-21 Condensing Oil 90.8%
Grant Vortex Eco External System 21-26 Condensing Oil 90.6%
Grant Vortex Eco External System 26-35 Condensing Oil 90.3%
Grant Vortex Eco Utility 15-21 Condensing Oil 90.8%
Grant Vortex Eco Utility 21-26 Condensing Oil 90.6%
Grant Vortex Eco Utility 26-35 Condensing Oil 90.3%
Grant Vortex Eco Utility System 15-21 Condensing Oil 90.8%
Grant Vortex Eco Utility System 21-26 Condensing Oil 90.6%
Grant Vortex Eco Utility System 26-35 Condensing Oil 90.3%
Grant Vortex Eco Wall Hung 12-16 Condensing Oil 91.9%
Grant Vortex Eco Wall Hung 16-21 Condensing Oil 91.6%
Grant Vortex Eco Wall Hung External 12-16 Condensing Oil 91.9%
Grant Vortex Eco Wall Hung External 16-21 Condensing Oil 91.6%
Grant Vortex Eco Wall Hung External System 12-16 Condensing Oil 91.9%
Grant Vortex Eco Wall Hung External System 16-21 Condensing Oil 91.6%
Grant Vortex Eco Wall Hung System 12-16 Condensing Oil 91.9%
Grant Vortex Eco Wall Hung System 16-21 Condensing Oil 91.6%
Grant Vortex Outdoor Combi 21 Condensing Oil 89.5%
Grant Vortex Outdoor Condensing Combi 26 Condensing Oil 90.2%
Grant Vortex Outdoor Condensing Combi 36 Condensing Oil 91.6%
Grant Vortex Outdoor Module 15-21 Condensing Oil 91.2%
Grant Vortex Outdoor Module 15-26 Condensing Oil 91.9%
Grant Vortex Outdoor Module 26-36 Condensing Oil 93.3%
Grant Vortex Outdoor Module 36-46 Condensing Oil 90.7%
Grant Vortex Pro Boilerhouse 36-46 Condensing Oil 90.7%
Grant Vortex Pro Boilerhouse 46-58 Condensing Oil 91.7%
Grant Vortex Pro Boilerhouse 58-70 Condensing Oil 91.4%
Grant Vortex PRO Combi XS 26 Condensing Oil 90.0%
Grant Vortex Pro External 46-58 Condensing Oil 91.7%
Grant Vortex Pro External 58-70 Condensing Oil 91.4%
Grant Vortex Utility 15-21 Condensing Oil 91.2%
Grant Vortex Utility 15-26 Condensing Oil 91.9%
Grant Vortex Utility 36-46 Condensing Oil 90.7%
Grant Vortex Utility 46-58 Condensing Oil 91.7%
Grant Vortex Utility 58-70 Condensing Oil 91.4%
Grant Vortex Utility System 15-26S Condensing Oil 91.9%
Grant Vortex Utility System 36-46S Condensing Oil 90.7%
Halstead 30/90Combi 30/90combi Non-Condensing Gas 70.0%
Halstead 40h Non-Condensing Gas 65.0%
Halstead 50h Non-Condensing Gas 65.0%
Halstead Ace Non-Condensing Gas 76.2%
Halstead Ace acl Non-Condensing Gas 78.1%
Halstead Ace HE 24 Condensing Gas 88.8%
Halstead Ace HE 30 Condensing Gas 88.8%
Halstead Ace HE35 Condensing Gas 89.3%
Halstead Ace High Non-Condensing Gas 78.6%
Halstead Balmoral 45f Non-Condensing Gas 72.0%
Halstead Balmoral 65f Non-Condensing Gas 72.0%
Halstead Best 30 Non-Condensing Gas 75.9%
Halstead Best 30 db Non-Condensing Gas 78.1%
Halstead Best 40 Non-Condensing Gas 75.6%
Halstead Best 40 db Non-Condensing Gas 78.6%
Halstead Best 40 P Non-Condensing LPG 80.4%
Halstead Best 50 Non-Condensing Gas 76.4%
Halstead Best 50 db Non-Condensing Gas 78.1%
Halstead Best 60 Non-Condensing Gas 75.6%
Halstead Best 60 db Non-Condensing Gas 79.2%
Halstead Best 60 P Non-Condensing LPG 81.0%
Halstead Best 70 db Non-Condensing Gas 78.5%
Halstead Best 80 Non-Condensing Gas 76.2%
Halstead Blenheim 15/30 Non-Condensing Gas 65.0%
Halstead Blenheim 30/40 Non-Condensing Gas 65.0%
Halstead Blenheim 40 Non-Condensing Gas 65.0%
Halstead Blenheim 40/50 Non-Condensing Gas 65.0%
Halstead Blenheim 50 Non-Condensing Gas 65.0%
Halstead Blenheim 50/60 Non-Condensing Gas 65.0%
Halstead Blenheim 60/75 Non-Condensing Gas 65.0%
Halstead Buckingham II BF100 Non-Condensing Gas 65.0%
Halstead Buckingham II BF40 Non-Condensing Gas 65.0%
Halstead Buckingham II BF50 Non-Condensing Gas 65.0%
Halstead Buckingham II BF60 Non-Condensing Gas 65.0%
Halstead Buckingham II BF70 Non-Condensing Gas 65.0%
Halstead Buckingham II BF80 Non-Condensing Gas 65.0%
Halstead Buckingham II CF100 Non-Condensing Gas 65.0%
Halstead Buckingham II CF40 Non-Condensing Gas 65.0%
Halstead Buckingham II CF50 Non-Condensing Gas 65.0%
Halstead Buckingham II CF60 Non-Condensing Gas 65.0%
Halstead Buckingham II CF70 Non-Condensing Gas 65.0%
Halstead Buckingham II CF80 Non-Condensing Gas 65.0%
Halstead Club HE 18 Condensing Gas 88.9%
Halstead Eden cb Condensing Gas 88.5%
Halstead Eden CBX 24 Condensing Gas 89.4%
Halstead Eden CBX 32 Condensing Gas 89.0%
Halstead Eden CBX 38 Condensing LPG 89.6%
Halstead Eden sb Condensing Gas 88.7%
Halstead Eden SBX 30 Condensing Gas 89.5%
Halstead Eden vb Condensing Gas 88.7%
Halstead Eden VBX 18 Condensing Gas 89.5%
Halstead Eden VBX 30 Condensing Gas 89.5%
Halstead Finest Non-Condensing Gas 77.3%
Halstead Finest fpx Non-Condensing LPG 81.1%
Halstead Finest fx Non-Condensing Gas 79.3%
Halstead Finest Gold Non-Condensing Gas 77.3%
Halstead Finest Gold fgx Non-Condensing Gas 79.3%
Halstead Finest Platinum Non-Condensing Gas 78.7%
Halstead Hero 30 Non-Condensing Gas 79.2%
Halstead Hero 40 Non-Condensing Gas 78.6%
Halstead Hero 50 Non-Condensing Gas 78.5%
Halstead Hero 60 Non-Condensing Gas 79.1%
Halstead Hero 75 Non-Condensing Gas 78.4%
Halstead Hero 90 Non-Condensing Gas 78.6%
Halstead iheat 20 Condensing Gas 88.8%
Halstead Iheat 24c Condensing Gas 86.0%
Halstead iheat 25c Condensing Gas 88.8%
Halstead iheat 25s Condensing Gas 88.8%
Halstead Iheat 29c Condensing Gas 85.8%
Halstead iheat 30c Condensing Gas 88.8%
Halstead iheat 35c Condensing Gas 88.7%
Halstead Pulsejet 20 Condensing Gas 88.7%
Halstead Pulsejet 32 Condensing Gas 88.6%
Halstead Pulsejet 40 Condensing Gas 88.6%
Halstead Quattro Quattro Non-Condensing Gas 70.0%
Halstead Triocombi triocombi Non-Condensing Gas 70.0%
Halstead Wickes 90 Non-Condensing Gas 77.3%
Halstead Wickes Ace Non-Condensing Gas 76.2%
Halstead Wickes Combi 102 Non-Condensing Gas 78.6%
Halstead Wickes Combi 82 Non-Condensing Gas 78.1%
Halstead Wickes Combi HE 24 Condensing Gas 89.4%
Halstead Wickes LW 40 ci Non-Condensing Gas 78.6%
Halstead Wickes LW 40Ci Non-Condensing Gas 75.3%
Halstead Wickes LW 50 ci Non-Condensing Gas 78.1%
Halstead Wickes LW 50Ci Non-Condensing Gas 76.3%
Halstead Wickes LW 60 ci Non-Condensing Gas 79.2%
Halstead Wickes LW 60Ci Non-Condensing Gas 75.6%
Heating World Group Beta 15/17 WM Non-Condensing Oil 70.0%
Heating World Group Beta 15/19 Non-Condensing Oil 70.0%
Heating World Group Beta 42339 Non-Condensing Oil 70.0%
Heating World Group Flamevector SHFS 12/18 BF Non-Condensing Oil 85.6%
Heating World Group Flamevector SHFS 12/18 CF Non-Condensing Oil 85.6%
Heating World Group Flamevector SHFS 18/21 BF Non-Condensing Oil 82.5%
Heating World Group Flamevector SHFS 18/21 CF Non-Condensing Oil 82.5%
Heating World Group Flamevector SHI 12/18 BF Non-Condensing Oil 85.6%
Heating World Group Flamevector SHI 12/18 CF Non-Condensing Oil 85.6%
Heating World Group Flamevector SHI 18/21 BF Non-Condensing Oil 82.5%
Heating World Group Flamevector SHI 18/21 CF Non-Condensing Oil 82.5%
Heating World Group Grandee 1.40 Non-Condensing Oil 84.2%
Heating World Group Grandee 1.50 Non-Condensing Oil 82.5%
Heating World Group Grandee 1.60 Non-Condensing Oil 82.5%
Heating World Group Grandee 1S 12/18 BF Non-Condensing Oil 85.6%
Heating World Group Grandee 1S 12/18 BF EXT Non-Condensing Oil 85.6%
Heating World Group Grandee 1S 12/18 CF Non-Condensing Oil 85.6%
Heating World Group Grandee 2.70 Non-Condensing Oil 83.3%
Heating World Group Grandee 2.80 Non-Condensing Oil 83.3%
Heating World Group Grandee 2S 18/22 BF Non-Condensing Oil 85.6%
Heating World Group Grandee 2S 18/22 BF EXT Non-Condensing Oil 85.6%
Heating World Group Grandee 2S 18/22 CF Non-Condensing Oil 85.6%
Heating World Group Grandee 3.100 Non-Condensing Oil 83.3%
Heating World Group Grandee 3.90 Non-Condensing Oil 83.3%
Heating World Group Grandee 3S 22/27 BF Non-Condensing Oil 85.6%
Heating World Group Grandee 3S 22/27 BF EXT Non-Condensing Oil 85.6%
Heating World Group Grandee 3S 22/27 CF Non-Condensing Oil 85.6%
Heating World Group Grandee 4.40 Non-Condensing Oil 84.2%
Heating World Group Grandee 4.40 BF Non-Condensing Oil 84.2%
Heating World Group Grandee 4.50 Non-Condensing Oil 82.5%
Heating World Group Grandee 4.50 BF Non-Condensing Oil 82.5%
Heating World Group Grandee 4.60 Non-Condensing Oil 82.5%
Heating World Group Grandee 4.60 BF Non-Condensing Oil 82.5%
Heating World Group Grandee 5.40 Non-Condensing Oil 84.2%
Heating World Group Grandee 5.40 BF Non-Condensing Oil 84.2%
Heating World Group Grandee 5.50 Non-Condensing Oil 82.5%
Heating World Group Grandee 5.50 BF Non-Condensing Oil 82.5%
Heating World Group Grandee 5.60 Non-Condensing Oil 82.5%
Heating World Group Grandee 5.60 BF Non-Condensing Oil 82.5%
Heating World Group Grandee 5S 12/18 BF Non-Condensing Oil 85.6%
Heating World Group Grandee 5S 12/18 CF Non-Condensing Oil 85.6%
Heating World Group Grandee 6.60 Non-Condensing Oil 84.5%
Heating World Group Grandee 6.60 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 6.70 Non-Condensing Oil 84.5%
Heating World Group Grandee 6.70 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 6.80 Non-Condensing Oil 84.5%
Heating World Group Grandee 6.80 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 6S 15/23 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 6S 15/23 CF Non-Condensing Oil 84.5%
Heating World Group Grandee 7.100 Non-Condensing Oil 84.5%
Heating World Group Grandee 7.100 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 7.110 Non-Condensing Oil 84.5%
Heating World Group Grandee 7.110 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 7.90 Non-Condensing Oil 84.5%
Heating World Group Grandee 7.90 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 7S 26/32 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 7S 26/32 CF Non-Condensing Oil 84.5%
Heating World Group Grandee 8.120 Non-Condensing Oil 84.5%
Heating World Group Grandee 8.120 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 8.135 Non-Condensing Oil 84.5%
Heating World Group Grandee 8.135 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 8.150 Non-Condensing Oil 84.5%
Heating World Group Grandee 8.150 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 8S 35/40 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 8S 35/40 CF Non-Condensing Oil 84.5%
Heating World Group Grandee 9S 40/50 BF Non-Condensing Oil 84.5%
Heating World Group Grandee 9S 40/50 CF Non-Condensing Oil 84.5%
Heating World Group Grandee Combi Compact SFS 15-20 CF Non-Condensing Oil 82.6%
Heating World Group Grandee Combi Compact SFS 15/20 BF Non-Condensing Oil 82.6%
Heating World Group Grandee Combi Condensing External FS 15/23 Condensing Oil 88.5%
Heating World Group Grandee Combi Condensing External FS 23/30 Condensing Oil 88.1%
Heating World Group Grandee Combi Condensing External W 15/22 Condensing Oil 88.5%
Heating World Group Grandee Combi Condensing External W 23/28 Condensing Oil 88.1%
Heating World Group Grandee Combi Condensing FS 15/23 Condensing Oil 88.5%
Heating World Group Grandee Combi Condensing FS 23/30 Condensing Oil 88.1%
Heating World Group Grandee Combi Condensing W 15/22 Condensing Oil 88.5%
Heating World Group Grandee Combi Condensing W 23/28 Condensing Oil 88.1%
Heating World Group Grandee Combi Floor 15-20 Non-Condensing Oil 82.6%
Heating World Group Grandee Combi Floor 15-20 BF Non-Condensing Oil 82.6%
Heating World Group Grandee Combi SFS 15/20 BF Non-Condensing Oil 82.6%
Heating World Group Grandee Combi SFS 15/20 CF Non-Condensing Oil 82.6%
Heating World Group Grandee Combi SFS 20/25 BF Non-Condensing Oil 83.2%
Heating World Group Grandee Combi SFS 20/25 CF Non-Condensing Oil 83.2%
Heating World Group Grandee Combi SFS 25/29 BF Non-Condensing Oil 83.5%
Heating World Group Grandee Combi SFS 25/29 CF Non-Condensing Oil 83.5%
Heating World Group Grandee Combi SW 15/20 BF Non-Condensing Oil 82.8%
Heating World Group Grandee Combi SW 15/20 CF Non-Condensing Oil 82.8%
Heating World Group Grandee Combi SW 20/24 BF Non-Condensing Oil 83.4%
Heating World Group Grandee Combi SW 20/24 CF Non-Condensing Oil 83.4%
Heating World Group Grandee Combi SW 24/27 BF Non-Condensing Oil 83.9%
Heating World Group Grandee Combi SW 24/27 CF Non-Condensing Oil 83.9%
Heating World Group Grandee Standard Condensing External FS 15/23 Condensing Oil 90.2%
Heating World Group Grandee Standard Condensing External FS 23/30 Condensing Oil 89.8%
Heating World Group Grandee Standard Condensing External W 15/22 Condensing Oil 90.2%
Heating World Group Grandee Standard Condensing External W 23/28 Condensing Oil 89.8%
Heating World Group Grandee Standard Condensing FS 15/23 Condensing Oil 90.2%
Heating World Group Grandee Standard Condensing FS 23/30 Condensing Oil 89.8%
Heating World Group Grandee Standard Condensing W 15/22 Condensing Oil 90.2%
Heating World Group Grandee Standard Condensing W 23/28 Condensing Oil 89.8%
Heating World Group Grandee System Condensing External FS 15/23 Condensing Oil 90.2%
Heating World Group Grandee System Condensing External FS 23/30 Condensing Oil 89.8%
Heating World Group Grandee System Condensing External W 15/22 Condensing Oil 90.2%
Heating World Group Grandee System Condensing External W 23/28 Condensing Oil 89.8%
Heating World Group Grandee System Condensing FS 15/23 Condensing Oil 90.2%
Heating World Group Grandee System Condensing FS 23/30 Condensing Oil 89.8%
Heating World Group Grandee System Condensing W 15/22 Condensing Oil 90.2%
Heating World Group Grandee System Condensing W 23/28 Condensing Oil 89.8%
Heating World Group Sorrento 12/15 Non-Condensing Oil 84.2%
Heating World Group Sorrento 15/18 Non-Condensing Oil 82.5%
Heating World Group Sorrento 18/21 Non-Condensing Oil 82.5%
Heating World Group Sorrento SFS 12/18 BF Non-Condensing Oil 85.6%
Heating World Group Sorrento SFS 12/18 CF Non-Condensing Oil 85.6%
Heating World Group Sorrento SFS 18/21 BF Non-Condensing Oil 82.5%
Heating World Group Sorrento SFS 18/21 CF Non-Condensing Oil 82.5%
Heating World Group Sorrento SHI 12/18 BF Non-Condensing Oil 85.6%
Heating World Group Sorrento SHI 12/18 CF Non-Condensing Oil 85.6%
Heating World Group Sorrento SHI 18/21 BF Non-Condensing Oil 82.5%
Heating World Group Sorrento SHI 18/21 CF Non-Condensing Oil 82.5%
Heatline CAPRIZ 2 24c Condensing Gas 89.2%
Heatline CAPRIZ 2 28c Condensing Gas 89.2%
Heatline Capriz 25 Condensing Gas 85.6%
Heatline Capriz 25S Condensing Gas 85.7%
Heatline Capriz 28 Condensing Gas 85.7%
Heatline Capriz 28S Condensing Gas 85.8%
Heatline CaprizPlus 24 Condensing Gas 88.9%
Heatline CaprizPlus 24a Condensing Gas 88.9%
Heatline CaprizPlus 28 Condensing Gas 88.8%
Heatline CaprizPlus 28a Condensing Gas 88.5%
Heatline MONZA 2 24c Condensing Gas 89.2%
Heatline MONZA 2 28c Condensing Gas 89.2%
Heatline Monza 24 Condensing Gas 88.9%
Heatline Monza 24a Condensing Gas 88.9%
Heatline Monza 28 Condensing Gas 88.8%
Heatline Monza 28a Condensing Gas 88.5%
Heatline Sargon 18S Condensing Gas 88.5%
Heatline Sargon 20S Condensing Gas 88.5%
Heatline Sargon 24 Condensing Gas 88.4%
Heatline Sargon 24S Condensing Gas 88.5%
Heatline Sargon 30 Condensing Gas 88.4%
Heatline Sargon 30S Condensing Gas 88.5%
Heatline Sargon 35 Condensing Gas 88.4%
Heatline Solaris 24 pcs Condensing Gas 88.7%
Heatline Vizo 24 Condensing Gas 85.5%
Heatline Vizo 28 Condensing Gas 86.1%
Heatline Vizo Plus 24 Condensing Gas 88.4%
HEB Boilers 60/80 Option Non-Condensing Oil 80.8%
Hepworth Heating Economy 30F Non-Condensing Gas 72.0%
Hepworth Heating Economy 40F Non-Condensing Gas 72.0%
Hepworth Heating Economy 50F Non-Condensing Gas 72.0%
Hepworth Heating EnviroPlus F24e Condensing Gas 89.1%
Hepworth Heating Halstead Buckingham 4 100BFF Non-Condensing Gas 79.9%
Hepworth Heating Halstead Buckingham 4 100CFF Non-Condensing Gas 79.9%
Hepworth Heating Halstead Buckingham 4 115BFF Non-Condensing Gas 78.7%
Hepworth Heating Halstead Buckingham 4 115CFF Non-Condensing Gas 78.7%
Hepworth Heating Halstead Buckingham 4 40BFF Non-Condensing Gas 78.3%
Hepworth Heating Halstead Buckingham 4 40CFF Non-Condensing Gas 78.3%
Hepworth Heating Halstead Buckingham 4 50BFF Non-Condensing Gas 78.2%
Hepworth Heating Halstead Buckingham 4 50CFF Non-Condensing Gas 78.2%
Hepworth Heating Halstead Buckingham 4 60BFF Non-Condensing Gas 78.5%
Hepworth Heating Halstead Buckingham 4 60CFF Non-Condensing Gas 78.5%
Hepworth Heating Halstead Buckingham 4 80BFF Non-Condensing Gas 78.4%
Hepworth Heating Halstead Buckingham 4 80CFF Non-Condensing Gas 78.4%
Hepworth Heating Halstead Buckingham III BF 60 Non-Condensing Gas 71.7%
Hepworth Heating Halstead Buckingham III BF100 Non-Condensing Gas 73.0%
Hepworth Heating Halstead Buckingham III BF120 Non-Condensing Gas 72.0%
Hepworth Heating Halstead Buckingham III BF40 Non-Condensing Gas 71.5%
Hepworth Heating Halstead Buckingham III BF50 Non-Condensing Gas 71.4%
Hepworth Heating Halstead Buckingham III BF70 Non-Condensing Gas 72.5%
Hepworth Heating Halstead Buckingham III BF80 Non-Condensing Gas 72.6%
Hepworth Heating Halstead Buckingham III CF100 Non-Condensing Gas 72.1%
Hepworth Heating Halstead Buckingham III CF120 Non-Condensing Gas 73.0%
Hepworth Heating Halstead Buckingham III CF40 Non-Condensing Gas 70.8%
Hepworth Heating Halstead Buckingham III CF50 Non-Condensing Gas 71.0%
Hepworth Heating Halstead Buckingham III CF60 Non-Condensing Gas 71.3%
Hepworth Heating Halstead Buckingham III CF70 Non-Condensing Gas 71.8%
Hepworth Heating Halstead Buckingham III CF80 Non-Condensing Gas 71.7%
Hermann Srl Eura 32 SE Non-Condensing Gas 79.3%
Hermann Srl Eura Condensing Condensing Gas 88.5%
Hermann Srl Euromini 24 SE Non-Condensing Gas 79.9%
Hermann Srl Supermicra 24 SE Non-Condensing Gas 78.7%
Hermann Srl Supermicra 30 SE Non-Condensing Gas 80.0%
Hoval TopGas (30) Condensing Gas 88.2%
Hoval TopGas (35) Condensing Gas 88.0%
Hoval TopGas (45) Condensing Gas 88.0%
Hoval TopGas (60) Condensing Gas 88.0%
HRM Boilers Starflow 50/85 Non-Condensing Oil 83.4%
HRM Boilers Starflow 85/110 Non-Condensing Oil 80.0%
HRM Boilers Wallstar 12/14 Non-Condensing Oil 84.0%
HRM Boilers Wallstar 12/15 11 Non-Condensing Oil 84.2%
HRM Boilers Wallstar 15/19 Non-Condensing Oil 81.8%
HRM Boilers Wallstar 15/20 12 Non-Condensing Oil 85.3%
HRM Boilers Wallstar 20/24 Non-Condensing Oil 81.4%
HRM Boilers Wallstar 20/25 13 Non-Condensing Oil 85.6%
HRM Boilers Wallstar 25/19 20 Non-Condensing Oil 83.3%
HRM Boilers Wallstar System 12/15 System 11 Non-Condensing Oil 85.3%
HRM Boilers Wallstar System 15/20 System 12 Non-Condensing Oil 85.3%
HRM Boilers Weybourne 50/70 Non-Condensing Oil 85.6%
HRM Boilers Weybourne 70/95 Non-Condensing Oil 85.6%
HRM Wallstar 12/14 Condensing a Condensing Oil 89.7%
HRM Wallstar 15/19 Condensing a Condensing Oil 89.6%
HRM Wallstar 15/19 Condensing Eco Condensing Oil 86.0%
HRM Wallstar 15/19 Condensing EOGB Condensing Oil 85.2%
HRM Wallstar 20/24 Condensing A Condensing Oil 91.8%
HRM Wallstar 20/24 Condensing Eco Condensing Oil 85.2%
HRM Wallstar 20/24 Condensing EOGB Condensing Oil 85.2%
HRM Wallstar Combi Condensing Oil 87.0%
HRM Wallstar System 15/19 Condensing a Condensing Oil 89.6%
HRM Wallstar System 15/19 Condensing Eco Condensing Oil 86.0%
HRM Wallstar System 15/19 Condensing EOGB Condensing Oil 85.2%
HRM X-Ternal 15/19 Condensing a Condensing Oil 89.6%
HRM X-Ternal 15/19 Condensing Eco Condensing Oil 86.0%
HRM X-Ternal 15/19 Condensing EOGB Condensing Oil 85.2%
HRM X-Ternal System 12/14 Condensing a Condensing Oil 89.7%
Husqvarna Husqvarna 8AW/D Non-Condensing Oil 65.0%
Hyrdoline B24 Condensing Gas 85.6%
i 24 Condensing Gas 89.0%
i 30 Condensing Gas 89.0%
i 35 Condensing Gas 88.9%
i-mini 24 Condensing Gas 89.0%
i-mini 30 Condensing Gas 89.0%
i-mini C24 Condensing Gas 89.6%
i-mini C30 Condensing Gas 89.6%
ICI Caldaie Solar C25 Condensing Gas 89.1%
ICI Caldaie Solar C31 Condensing Gas 88.8%
ICI Caldaie Solar Micro 24F Non-Condensing Gas 80.3%
ICI Caldaie Solar Micro 28F Non-Condensing Gas 80.1%
ICI Caldaie Solar System 24F Non-Condensing Gas 80.4%
ICI Caldaie Solar System 28F Non-Condensing Gas 80.2%
ICI Caldaie Solar System C25 Condensing Gas 89.2%
ICI Caldaie Solar System C31 Condensing Gas 88.9%
icon Heating Base Cube 24/35 UK Condensing Gas 88.5%
icon Heating Base Cube 30/35 UK Condensing Gas 88.7%
icon Heating Base Cube Duo 24/35 UK Condensing Gas 88.5%
Ideal Buccaneer GTE4/OIL Non-Condensing Oil 85.6%
Ideal Buccaneer GTE5/OIL Non-Condensing Oil 85.6%
Ideal Buccaneer GTE6/OIL Non-Condensing Oil 85.6%
Ideal C 80FF Non-Condensing Gas 78.4%
Ideal C 95FF Non-Condensing Gas 78.5%
Ideal Classic 24 Condensing Gas 88.9%
Ideal Classic 30 Condensing Gas 89.0%
Ideal Classic FF 3100 Non-Condensing Gas 78.0%
Ideal Classic FF 330 Non-Condensing Gas 79.4%
Ideal Classic FF 340 Non-Condensing Gas 78.6%
Ideal Classic FF 340 LF Non-Condensing Gas 79.1%
Ideal Classic FF 350 Non-Condensing Gas 79.6%
Ideal Classic FF 350 LF Non-Condensing Gas 78.4%
Ideal Classic FF 350 P Non-Condensing LPG 81.8%
Ideal Classic FF 360 Non-Condensing Gas 78.3%
Ideal Classic FF 360 LF Non-Condensing Gas 79.1%
Ideal Classic FF 360 P Non-Condensing LPG 80.2%
Ideal Classic FF 370 Non-Condensing Gas 78.5%
Ideal Classic FF 380 Non-Condensing Gas 78.1%
Ideal Classic FF 380 P Non-Condensing LPG 79.9%
Ideal Classic FF2100 Non-Condensing Gas 76.7%
Ideal Classic FF230 Non-Condensing Gas 77.2%
Ideal Classic FF240 Non-Condensing Gas 76.2%
Ideal Classic FF250 Non-Condensing Gas 76.7%
Ideal Classic FF250P Non-Condensing LPG 81.7%
Ideal Classic FF260 Non-Condensing Gas 76.9%
Ideal Classic FF260P Non-Condensing LPG 78.5%
Ideal Classic FF270 Non-Condensing Gas 77.2%
Ideal Classic FF275P Non-Condensing LPG 77.4%
Ideal Classic FF280 Non-Condensing Gas 76.1%
Ideal Classic HE 12 Condensing Gas 86.6%
Ideal Classic HE 15 Condensing Gas 85.9%
Ideal Classic HE 15 P Condensing LPG 88.2%
Ideal Classic HE 18 Condensing Gas 86.6%
Ideal Classic HE 18 P Condensing LPG 87.3%
Ideal Classic HE 9 Condensing Gas 86.4%
Ideal Classic LX FF230 Non-Condensing Gas 77.2%
Ideal Classic LX FF240 Non-Condensing Gas 76.2%
Ideal Classic LX FF250 Non-Condensing Gas 76.7%
Ideal Classic LX FF250P Non-Condensing LPG 81.7%
Ideal Classic LX FF260 Non-Condensing Gas 76.9%
Ideal Classic LX FF260P Non-Condensing LPG 78.5%
Ideal Classic LX FF270 Non-Condensing Gas 77.2%
Ideal Classic LX FF275P Non-Condensing LPG 77.4%
Ideal Classic LX FF280 Non-Condensing Gas 76.5%
Ideal Classic LX RS230 Non-Condensing Gas 71.2%
Ideal Classic LX RS240 Non-Condensing Gas 73.2%
Ideal Classic LX RS245P Non-Condensing LPG 73.9%
Ideal Classic LX RS250 Non-Condensing Gas 72.3%
Ideal Classic LX RS255P Non-Condensing LPG 72.8%
Ideal Classic LX RS260 Non-Condensing Gas 72.3%
Ideal Classic RS 230 Non-Condensing Gas 71.2%
Ideal Classic RS 240 Non-Condensing Gas 73.2%
Ideal Classic RS 245P Non-Condensing LPG 73.9%
Ideal Classic RS 250 Non-Condensing Gas 72.3%
Ideal Classic RS 255P Non-Condensing LPG 72.8%
Ideal Classic RS 260 Non-Condensing Gas 72.3%
Ideal Classic RS 330 Non-Condensing Gas 78.3%
Ideal Classic RS 340 Non-Condensing Gas 78.9%
Ideal Classic RS 350 Non-Condensing Gas 79.9%
Ideal Classic RS 360 Non-Condensing Gas 79.0%
Ideal Classic SE12 FF Non-Condensing Gas 78.6%
Ideal Classic SE12 FF Silver Non-Condensing Gas 78.6%
Ideal Classic SE12 RS Non-Condensing Gas 78.9%
Ideal Classic SE15 FF Non-Condensing Gas 79.6%
Ideal Classic SE15 FF Silver Non-Condensing Gas 79.6%
Ideal Classic SE15 RS Non-Condensing Gas 79.9%
Ideal Classic SE18 FF Non-Condensing Gas 78.3%
Ideal Classic SE18 FF Silver Non-Condensing Gas 78.3%
Ideal Classic SE18 RS Non-Condensing Gas 79.0%
Ideal Classic SE21 FF Non-Condensing Gas 78.5%
Ideal Classic SE21 FF Silver Non-Condensing Gas 78.5%
Ideal Classic SE24 FF Non-Condensing Gas 78.1%
Ideal Classic SE24 FF Silver Non-Condensing Gas 78.1%
Ideal Classic SE30 FF Non-Condensing Gas 78.0%
Ideal Classic SE30 FF Silver Non-Condensing Gas 78.0%
Ideal Classic SE9 FF Non-Condensing Gas 79.4%
Ideal Classic SE9 FF Silver Non-Condensing Gas 79.4%
Ideal Classic SE9 RS Non-Condensing Gas 78.3%
Ideal Classic Slimline FF 330 Non-Condensing Gas 79.9%
Ideal Classic Slimline FF 340 Non-Condensing Gas 79.2%
Ideal Classic Slimline FF 350 Non-Condensing Gas 79.9%
Ideal Classic Slimline FF 360 Non-Condensing Gas 79.7%
Ideal Classic Slimline SE12 FF Non-Condensing Gas 79.2%
Ideal Classic Slimline SE15 FF Non-Condensing Gas 79.9%
Ideal Classic Slimline SE18 FF Non-Condensing Gas 79.7%
Ideal Classic Slimline SE9 FF Non-Condensing Gas 79.9%
Ideal Concord CX40 Non-Condensing Gas 72.0%
Ideal Concord CX50 Non-Condensing Gas 72.4%
Ideal Concord CX60 Non-Condensing Gas 73.5%
Ideal Concord CXA 40/H Non-Condensing Gas 79.9%
Ideal Concord CXA 50/H Non-Condensing Gas 79.9%
Ideal Concord CXA 60/H Non-Condensing Gas 79.8%
Ideal Concord CXA40 Non-Condensing Gas 76.0%
Ideal Concord CXA50 Non-Condensing Gas 76.4%
Ideal Concord CXA60 Non-Condensing Gas 77.5%
Ideal Concord CXC48 Condensing Gas 85.4%
Ideal Concord CXC70 Condensing Gas 85.2%
Ideal Concord CXD40 Non-Condensing Gas 76.2%
Ideal Concord CXD50 Non-Condensing Gas 76.2%
Ideal Concord CXD60 Non-Condensing Gas 77.7%
Ideal Concord CXS 40/H Non-Condensing Gas 80.4%
Ideal Concord CXS 50/H Non-Condensing Gas 80.1%
Ideal Concord CXS 60/H Non-Condensing Gas 80.3%
Ideal Concord CXS40 Non-Condensing Gas 76.2%
Ideal Concord CXS50 Non-Condensing Gas 76.2%
Ideal Concord CXS60 Non-Condensing Gas 77.7%
Ideal Concord CXSD 40/H Non-Condensing Gas 80.4%
Ideal Concord CXSD 50/H Non-Condensing Gas 80.1%
Ideal Concord CXSD 60/H Non-Condensing Gas 80.3%
Ideal Concord CXSD40 Non-Condensing Gas 76.2%
Ideal Concord CXSD50 Non-Condensing Gas 76.2%
Ideal Concord CXSD60 Non-Condensing Gas 77.7%
Ideal Elise H15 Condensing Gas 89.7%
Ideal Elise H24 Condensing Gas 88.8%
Ideal Esprit 2 24 Condensing Gas 88.7%
Ideal Esprit 2 30 Condensing Gas 88.7%
Ideal Esprit 2 35 Condensing Gas 88.7%
Ideal Esprit Eco 24 Condensing Gas 88.9%
Ideal Esprit Eco 30 Condensing Gas 89.0%
Ideal Esprit HE 24 Condensing Gas 88.9%
Ideal Esprit HE 30 Condensing Gas 88.9%
Ideal Esprit HE 35 Condensing Gas 88.9%
Ideal Evomax 30 Condensing Gas 89.6%
Ideal Evomax 30P Condensing LPG 90.6%
Ideal Evomax 40 Condensing Gas 89.3%
Ideal Evomax 40P Condensing LPG 90.3%
Ideal Evomax 60 Condensing Gas 89.4%
Ideal Evomax 60P Condensing LPG 90.5%
Ideal excel HE C24 Condensing Gas 85.9%
Ideal excel HE C28 Condensing Gas 85.9%
Ideal excel HE C32 Condensing Gas 85.9%
Ideal Exclusive 24 Condensing Gas 88.9%
Ideal Exclusive 30 Condensing Gas 89.0%
Ideal Exclusive 35 Condensing Gas 89.0%
Ideal Icos HE 12 Condensing Gas 88.7%
Ideal icos HE15 Condensing Gas 89.7%
Ideal icos HE18 Condensing Gas 89.4%
Ideal icos HE24 Condensing Gas 88.8%
Ideal Icos HE30 Condensing Gas 89.1%
Ideal Icos HE36 Condensing Gas 89.6%
Ideal icos m3080 Condensing Gas 88.8%
Ideal icos System HE 15 Condensing Gas 89.7%
Ideal icos System HE 24 Condensing Gas 88.8%
Ideal icos system m3080 Condensing Gas 88.8%
Ideal Imax W45 Condensing Gas 88.9%
Ideal Imax W45P Condensing LPG 89.8%
Ideal Imax W60 Condensing Gas 89.1%
Ideal Imax W60P Condensing LPG 90.1%
Ideal Independent + C24 Condensing Gas 89.0%
Ideal Independent + C30 Condensing Gas 89.0%
Ideal Independent + C35 Condensing Gas 88.9%
Ideal INDEPENDENT + COMBI 24 Condensing Gas 89.6%
Ideal INDEPENDENT + COMBI 30 Condensing Gas 89.6%
Ideal INDEPENDENT + COMBI 30P Condensing LPG 90.7%
Ideal INDEPENDENT + COMBI 35 Condensing Gas 89.6%
Ideal Independent C24 Condensing Gas 89.0%
Ideal Independent C30 Condensing Gas 89.0%
Ideal Independent C35 Condensing Gas 88.9%
Ideal INDEPENDENT COMBI 24 Condensing Gas 89.6%
Ideal INDEPENDENT COMBI 30 Condensing Gas 89.6%
Ideal INDEPENDENT COMBI 30P Condensing LPG 90.7%
Ideal INDEPENDENT COMBI 35 Condensing Gas 89.6%
Ideal Independent System 15 Condensing Gas 89.3%
Ideal Independent System 18 Condensing Gas 89.2%
Ideal Independent System 24 Condensing Gas 89.5%
Ideal Independent System 30 Condensing Gas 89.6%
Ideal INDEPENDENT SYSTEM S15 Condensing Gas 89.4%
Ideal INDEPENDENT SYSTEM S18 Condensing Gas 89.6%
Ideal INDEPENDENT SYSTEM S24 Condensing Gas 89.8%
Ideal INDEPENDENT SYSTEM S30 Condensing Gas 89.5%
Ideal INDEPENDENT SYSTEM S30P Condensing LPG 90.5%
Ideal INSTINCT 24 Condensing Gas 88.9%
Ideal INSTINCT 30 Condensing Gas 89.0%
Ideal INSTINCT 35 Condensing Gas 88.9%
Ideal Isar HE 30 HE30 Condensing Gas 88.7%
Ideal isar HE24 Condensing Gas 88.7%
Ideal isar HE30 Condensing Gas 88.7%
Ideal isar HE35 Condensing Gas 88.7%
Ideal isar m30100 Condensing Gas 88.7%
Ideal istor HE260 Condensing Gas 89.4%
Ideal istor HE325 Condensing Gas 89.5%
Ideal LOGIC + COMBI C24 Condensing Gas 89.6%
Ideal LOGIC + COMBI C30 Condensing Gas 89.6%
Ideal LOGIC + COMBI C30P Condensing LPG 90.7%
Ideal LOGIC + COMBI C35 Condensing Gas 89.6%
Ideal Logic + Heat 12 Condensing Gas 89.4%
Ideal Logic + Heat 15 Condensing Gas 89.3%
Ideal Logic + Heat 18 Condensing Gas 89.2%
Ideal Logic + Heat 24 Condensing Gas 89.5%
Ideal Logic + Heat 30 Condensing Gas 89.6%
Ideal LOGIC + HEAT H12 Condensing Gas 89.4%
Ideal LOGIC + HEAT H15 Condensing Gas 89.4%
Ideal LOGIC + HEAT H18 Condensing Gas 89.6%
Ideal LOGIC + HEAT H24 Condensing Gas 89.8%
Ideal LOGIC + HEAT H30 Condensing Gas 89.5%
Ideal LOGIC + HEAT H30P Condensing LPG 90.5%
Ideal Logic + System 15 Condensing Gas 89.3%
Ideal Logic + System 18 Condensing Gas 89.2%
Ideal Logic + System 24 Condensing Gas 89.5%
Ideal Logic + System 30 Condensing Gas 89.6%
Ideal LOGIC + SYSTEM S15 Condensing Gas 89.4%
Ideal LOGIC + SYSTEM S18 Condensing Gas 89.6%
Ideal LOGIC + SYSTEM S24 Condensing Gas 89.8%
Ideal LOGIC + SYSTEM S30 Condensing Gas 89.5%
Ideal LOGIC + SYSTEM S30P Condensing LPG 90.5%
Ideal Logic Code Combi 26 Condensing Gas 89.0%
Ideal Logic Code Combi 33 Condensing Gas 89.0%
Ideal Logic Code Combi 38 Condensing Gas 88.9%
Ideal Logic Code Combi ES 26 Condensing Gas 89.0%
Ideal Logic Code Combi ES 33 Condensing Gas 89.0%
Ideal Logic Code Combi ES 38 Condensing Gas 88.9%
Ideal LOGIC CODE COMBI ESP1 26 Condensing Gas 89.6%
Ideal LOGIC CODE COMBI ESP1 33 Condensing Gas 89.6%
Ideal LOGIC CODE COMBI ESP1 33P Condensing LPG 90.7%
Ideal LOGIC CODE COMBI ESP1 38 Condensing Gas 89.6%
Ideal LOGIC CODE COMBI ESP1 38P Condensing LPG 90.7%
Ideal Logic combi 24 Condensing Gas 89.0%
Ideal Logic combi 30 Condensing Gas 89.0%
Ideal Logic combi 35 Condensing Gas 88.9%
Ideal LOGIC COMBI C 24 Condensing Gas 89.6%
Ideal LOGIC COMBI C 30 Condensing Gas 89.6%
Ideal LOGIC COMBI C 35 Condensing Gas 89.6%
Ideal LOGIC COMBI C24P Condensing LPG 90.7%
Ideal LOGIC COMBI C30P Condensing LPG 90.7%
Ideal Logic Combi E 24 Condensing Gas 89.0%
Ideal Logic Combi E 30 Condensing Gas 89.0%
Ideal Logic Combi E 35 Condensing Gas 88.9%
Ideal Logic Combi EC 24 Condensing Gas 89.0%
Ideal Logic Combi EC 30 Condensing Gas 89.0%
Ideal Logic Combi EC 35 Condensing Gas 88.9%
Ideal Logic Combi ES 24 Condensing Gas 89.0%
Ideal Logic Combi ES 30 Condensing Gas 89.0%
Ideal Logic Combi ES 35 Condensing Gas 88.9%
Ideal LOGIC COMBI ESP 24 Condensing Gas 89.0%
Ideal LOGIC COMBI ESP 30 Condensing Gas 89.0%
Ideal LOGIC COMBI ESP 35 Condensing Gas 88.9%
Ideal LOGIC COMBI ESP1 24 Condensing Gas 89.6%
Ideal LOGIC COMBI ESP1 30 Condensing Gas 89.6%
Ideal LOGIC COMBI ESP1 30P Condensing LPG 90.7%
Ideal LOGIC COMBI ESP1 35 Condensing Gas 89.6%
Ideal LOGIC COMBI ESP1 35P Condensing LPG 90.7%
Ideal Logic Heat 12 Condensing Gas 89.4%
Ideal Logic Heat 15 Condensing Gas 89.3%
Ideal Logic Heat 18 Condensing Gas 89.2%
Ideal Logic Heat 24 Condensing Gas 89.5%
Ideal Logic Heat 30 Condensing Gas 89.6%
Ideal LOGIC HEAT H12 Condensing Gas 89.4%
Ideal LOGIC HEAT H15 Condensing Gas 89.4%
Ideal LOGIC HEAT H18 Condensing Gas 89.6%
Ideal LOGIC HEAT H24 Condensing Gas 89.8%
Ideal LOGIC HEAT H24P Condensing LPG 90.8%
Ideal LOGIC HEAT H30 Condensing Gas 89.5%
Ideal LOGIC HEAT H30P Condensing LPG 90.5%
Ideal Logic System 15 Condensing Gas 89.3%
Ideal Logic System 18 Condensing Gas 89.2%
Ideal Logic System 24 Condensing Gas 89.5%
Ideal Logic System 30 Condensing Gas 89.6%
Ideal LOGIC SYSTEM S15 Condensing Gas 89.4%
Ideal LOGIC SYSTEM S15IE Condensing Gas 89.4%
Ideal LOGIC SYSTEM S18 Condensing Gas 89.6%
Ideal LOGIC SYSTEM S18IE Condensing Gas 89.6%
Ideal LOGIC SYSTEM S24 Condensing Gas 89.8%
Ideal LOGIC SYSTEM S24IE Condensing Gas 89.8%
Ideal LOGIC SYSTEM S24P IE Condensing LPG 90.8%
Ideal LOGIC SYSTEM S30 Condensing Gas 89.5%
Ideal LOGIC SYSTEM S30IE Condensing Gas 89.5%
Ideal LOGIC SYSTEM S30P Condensing LPG 90.5%
Ideal LOGIC SYSTEM S30P IE Condensing LPG 90.5%
Ideal Logic+ combi 24 Condensing Gas 89.0%
Ideal Logic+ combi 30 Condensing Gas 89.0%
Ideal Logic+ combi 35 Condensing Gas 88.9%
Ideal Maximiser SE 42 Condensing Gas 88.5%
Ideal Maximiser SE 65 Condensing Gas 88.8%
Ideal Mexico HE 24 Condensing Gas 88.8%
Ideal Mexico HE 30 Condensing Gas 88.9%
Ideal Mexico HE 36 Condensing Gas 89.0%
Ideal Mexico HE15 Condensing Gas 89.7%
Ideal Mexico HE18 Condensing Gas 89.4%
Ideal Mexico Slimline CF 440 Non-Condensing Gas 78.5%
Ideal Mexico Slimline CF3/40 Non-Condensing Gas 70.8%
Ideal Mexico Slimline CF3/50 Non-Condensing Gas 71.6%
Ideal Mexico Slimline RS 445 Non-Condensing Gas 78.4%
Ideal Mexico Slimline RS3/40 Non-Condensing Gas 74.6%
Ideal Mexico Slimline RS3/50 Non-Condensing Gas 72.9%
Ideal Mexico Super 100FF Non-Condensing Gas 77.6%
Ideal Mexico Super 125FF Non-Condensing Gas 77.9%
Ideal Mexico Super 40FF Non-Condensing Gas 76.7%
Ideal Mexico Super 4100 FF Non-Condensing Gas 78.9%
Ideal Mexico Super 4125 FF Non-Condensing Gas 78.5%
Ideal Mexico Super 440 FF Non-Condensing Gas 78.3%
Ideal Mexico Super 450 FF Non-Condensing Gas 79.0%
Ideal Mexico Super 460 FF Non-Condensing Gas 79.2%
Ideal Mexico Super 470 FF Non-Condensing Gas 79.9%
Ideal Mexico Super 480 FF Non-Condensing Gas 79.7%
Ideal Mexico Super 50FF Non-Condensing Gas 76.7%
Ideal Mexico Super 60FF Non-Condensing Gas 77.1%
Ideal Mexico Super 70FF Non-Condensing Gas 77.6%
Ideal Mexico Super 80FF Non-Condensing Gas 79.4%
Ideal Mexico Super CF 4120 Non-Condensing Gas 79.0%
Ideal Mexico Super CF 4140 Non-Condensing Gas 78.6%
Ideal Mexico Super CF 445 Non-Condensing Gas 78.5%
Ideal Mexico Super CF 455 Non-Condensing Gas 78.5%
Ideal Mexico Super CF 465 Non-Condensing Gas 79.7%
Ideal Mexico Super CF 475 Non-Condensing Gas 78.9%
Ideal Mexico Super CF 495 Non-Condensing Gas 78.8%
Ideal Mexico Super CF3/100 Non-Condensing Gas 71.6%
Ideal Mexico Super CF3/100P Non-Condensing LPG 73.8%
Ideal Mexico Super CF3/125 Non-Condensing Gas 71.8%
Ideal Mexico Super CF3/125P Non-Condensing LPG 74.5%
Ideal Mexico Super CF3/140 Non-Condensing Gas 72.7%
Ideal Mexico Super CF3/140P Non-Condensing LPG 74.8%
Ideal Mexico Super CF3/40 Non-Condensing Gas 71.8%
Ideal Mexico Super CF3/50 Non-Condensing Gas 71.3%
Ideal Mexico Super CF3/60 Non-Condensing Gas 71.8%
Ideal Mexico Super CF3/60P Non-Condensing LPG 74.4%
Ideal Mexico Super CF3/70 Non-Condensing Gas 72.7%
Ideal Mexico Super CF3/75P Non-Condensing LPG 74.0%
Ideal Mexico Super CF3/80 Non-Condensing Gas 72.3%
Ideal Mexico Super RS 4100 Non-Condensing Gas 79.0%
Ideal Mexico Super RS 4125 Non-Condensing Gas 79.4%
Ideal Mexico Super RS 440 Non-Condensing Gas 78.6%
Ideal Mexico Super RS 450 Non-Condensing Gas 79.1%
Ideal Mexico Super RS 460 Non-Condensing Gas 79.0%
Ideal Mexico Super RS 470 Non-Condensing Gas 79.0%
Ideal Mexico Super RS 485 Non-Condensing Gas 79.1%
Ideal Mexico Super RS3/100 Non-Condensing Gas 72.5%
Ideal Mexico Super RS3/100P Non-Condensing LPG 74.7%
Ideal Mexico Super RS3/125 Non-Condensing Gas 72.7%
Ideal Mexico Super RS3/40 Non-Condensing Gas 72.8%
Ideal Mexico Super RS3/50 Non-Condensing Gas 72.1%
Ideal Mexico Super RS3/60 Non-Condensing Gas 74.0%
Ideal Mexico Super RS3/60P Non-Condensing LPG 75.2%
Ideal Mexico Super RS3/70 Non-Condensing Gas 72.7%
Ideal Mexico Super RS3/75P Non-Condensing LPG 75.3%
Ideal Mexico Super RS3/80 Non-Condensing Gas 72.0%
Ideal Mini C24 24kW Combi Boiler Non-Condensing Gas 78.2%
Ideal Mini C28 28kW Combi Boiler Non-Condensing Gas 78.3%
Ideal Mini C32 32kW Combi Boiler Non-Condensing Gas 78.3%
Ideal mini HE C24 Condensing Gas 86.4%
Ideal mini HE C24 LPG Condensing LPG 86.8%
Ideal mini HE C28 Condensing Gas 86.5%
Ideal mini HE C28 LPG Condensing LPG 86.9%
Ideal Mini HE C32 Condensing Gas 86.1%
Ideal Mini S24 24kW System Boiler Non-Condensing Gas 78.3%
Ideal Mini S28 28kW System Boiler Non-Condensing Gas 78.4%
Ideal Minimser SE30 Condensing Gas 85.5%
Ideal Minimser SE40 Condensing Gas 85.8%
Ideal Minimser SE50 Condensing Gas 85.7%
Ideal Minimser SE60 Condensing Gas 85.6%
Ideal Minimser SE70 Condensing Gas 85.7%
Ideal Minimser SE80 Condensing Gas 85.6%
Ideal Project Heat 15 Condensing Gas 89.3%
Ideal Project Heat 24 Condensing Gas 89.5%
Ideal Project System 15 Condensing Gas 89.3%
Ideal Project System 24 Condensing Gas 89.5%
Ideal Response 100 Non-Condensing Gas 79.4%
Ideal Response 120 Non-Condensing Gas 79.4%
Ideal Response 80 Non-Condensing Gas 79.3%
Ideal Response SE Condensing Gas 87.4%
Ideal Systemiser SE Condensing Gas 87.5%
Ideal Vogue c26 Condensing Gas 89.2%
Ideal VOGUE C26 GEN2 Condensing Gas 89.2%
Ideal VOGUE C26P GEN2 Condensing LPG 90.2%
Ideal Vogue c32 Condensing Gas 89.3%
Ideal VOGUE C32 GEN2 Condensing Gas 89.3%
Ideal VOGUE C32P GEN2 Condensing LPG 90.3%
Ideal Vogue c40 Condensing Gas 89.2%
Ideal VOGUE C40 GEN2 Condensing Gas 89.2%
Ideal VOGUE C40P GEN2 Condensing LPG 90.2%
Ideal Vogue s15 Condensing Gas 89.1%
Ideal VOGUE S15 GEN2 Condensing Gas 89.1%
Ideal VOGUE S15P GEN2 Condensing LPG 90.1%
Ideal Vogue s18 Condensing Gas 89.4%
Ideal VOGUE S18 GEN2 Condensing Gas 89.4%
Ideal VOGUE S18P GEN2 Condensing LPG 90.4%
Ideal Vogue s26 Condensing Gas 89.4%
Ideal VOGUE S26 GEN2 Condensing Gas 89.4%
Ideal VOGUE S26P GEN2 Condensing LPG 90.4%
Ideal Vogue s32 Condensing Gas 89.4%
Ideal VOGUE S32 GEN2 Condensing Gas 89.4%
Ideal VOGUE S32P GEN2 Condensing LPG 90.4%
Ikon 23 t Non-Condensing Gas 78.7%
Ikon 28 t Non-Condensing Gas 79.9%
Ikon 40-50 CI Non-Condensing Gas 78.9%
Ikon 60-80 CI Non-Condensing Gas 78.3%
Intergas Combi Compact ECO RF 24 Condensing Gas 88.8%
Intergas Combi Compact ECO RF 30 Condensing Gas 88.8%
Intergas Combi Compact ECO RF 36 Condensing Gas 89.1%
Intergas Combi Compact HRE 24/18 Condensing Gas 88.8%
Intergas Combi Compact HRE 28/24 Condensing Gas 88.8%
Intergas Combi Compact HRE 36/30 Condensing Gas 89.1%
Intergas Compact HRE 18 OV Condensing Gas 88.9%
Intergas Compact HRE 18 SB Condensing Gas 88.9%
Intergas Compact HRE 24 OV Condensing Gas 88.9%
Intergas Compact HRE 24 SB Condensing Gas 88.9%
Intergas Compact HRE 30 OV Condensing Gas 89.2%
Intergas Compact HRE 30 SB Condensing Gas 89.2%
Intergas Rapid 25 Condensing Gas 89.0%
Intergas Rapid 32 Condensing Gas 88.9%
iQE Comfort 30 Condensing Gas 88.9%
iQE Horizon 15/26 Condensing Oil 90.6%
iQE Horizon 26/35 Condensing Oil 90.3%
iQE Horizon COMBI26 Condensing Oil 90.2%
iQE Horizon OM15/26 Condensing Oil 90.6%
iQE Horizon OM26/35 Condensing Oil 90.3%
iQE Horizon OMCOMBI26 Condensing Oil 90.2%
iQE Simplicity 20T Condensing Gas 88.7%
iQE Simplicity 25 Condensing Gas 88.8%
iQE Simplicity 25T Condensing Gas 88.9%
iQE Simplicity 30 Condensing Gas 88.8%
iQE Simplicity 30T Condensing Gas 88.9%
iQE Simplicity 35 Condensing Gas 88.6%
IRSAP CWAI 24 M Condensing Gas 88.5%
IRSAP CWAI 32 M Condensing Gas 88.8%
IRSAP CWAS 24 M Condensing Gas 88.9%
IRSAP CWAS 32 M Condensing Gas 89.2%
IRSAP Ecogreen CWAI 24 M Condensing Gas 88.5%
IRSAP Ecogreen CWAI 32 M Condensing Gas 88.8%
IRSAP Ecogreen CWAS 24 M Condensing Gas 88.9%
IRSAP Ecogreen CWAS 32 M Condensing Gas 89.2%
Itho Images bv Ethos 28 Condensing Gas 89.4%
Itho Images bv Ethos 36 Condensing Gas 89.4%
Itho Images bv Ethos 46 Condensing Gas 89.4%
Jaguar 23 Non-Condensing Gas 78.7%
Jaguar 28 Non-Condensing Gas 79.3%
Johnson & Starley QuanTec 16R Condensing Gas 89.7%
Johnson & Starley QuanTec 16RK Condensing Gas 89.7%
Johnson & Starley QuanTec 24C Condensing Gas 89.6%
Johnson & Starley QuanTec 24R Condensing Gas 89.6%
Johnson & Starley QuanTec 24RK Condensing Gas 89.6%
Johnson & Starley QuanTec 24S Condensing Gas 89.6%
Johnson & Starley QuanTec 30C Condensing Gas 89.5%
Johnson & Starley QuanTec HR28C Condensing Gas 89.3%
Johnson & Starley Quantec HR28CP Condensing LPG 90.3%
Johnson & Starley Reno HE16H Condensing Gas 89.1%
Johnson & Starley Reno HE16HP Condensing LPG 91.1%
Johnson & Starley Reno HE16S Condensing Gas 89.1%
Johnson & Starley Reno HE16SP Condensing LPG 91.1%
Johnson & Starley Reno HE25H Condensing Gas 89.2%
Johnson & Starley Reno HE25HP Condensing LPG 90.4%
Johnson & Starley Reno HE25S Condensing Gas 89.2%
Johnson & Starley Reno HE25SP Condensing LPG 90.4%
Johnson & Starley Reno HE30C Condensing Gas 89.1%
Johnson & Starley Reno HE30CP Condensing LPG 90.3%
Johnson & Starley Reno HE31H Condensing Gas 88.8%
Johnson & Starley Reno HE31HP Condensing LPG 91.0%
Johnson & Starley Reno HE31S Condensing Gas 88.8%
Johnson & Starley Reno HE31SP Condensing LPG 91.0%
Johnson & Starley Reno HE37C Condensing Gas 88.7%
Johnson & Starley Reno HE37CP Condensing LPG 90.9%
Johnson & Starley RenoXtra 30 CP Condensing LPG 90.4%
Johnson & Starley RenoXtra 30C Condensing Gas 89.4%
Johnson & Starley RenoXtra 30CA Condensing Gas 89.4%
Johnson & Starley RenoXtra 37 CP Condensing LPG 90.7%
Johnson & Starley RenoXtra 37C Condensing Gas 89.6%
Keston C 36 Combi Condensing Gas 89.8%
Keston C 36P Combi Condensing LPG 90.8%
Keston C 40P Condensing LPG 90.3%
Keston C 55P Condensing LPG 90.8%
Keston Celsius 25 Condensing Gas 88.9%
Keston Celsius 25P Condensing LPG 90.7%
Keston Combi 30 Condensing Gas 89.0%
Keston Combi 35 Condensing Gas 88.9%
Keston COMBI C30 Condensing Gas 89.6%
Keston COMBI C35 Condensing Gas 89.6%
Keston COMBI C35P Condensing LPG 90.7%
Keston Heat 45 Condensing Gas 89.2%
Keston Heat 55 Condensing Gas 89.6%
Keston K 130 Condensing Gas 87.9%
Keston K 130P Condensing LPG 89.9%
Keston K 170 Condensing Gas 89.1%
Keston K 170P Condensing LPG 91.1%
Keston K 40 Condensing Gas 89.3%
Keston K 50 Condensing Gas 87.2%
Keston K 50P Condensing LPG 88.9%
Keston K 55 Condensing Gas 89.7%
Keston K 60 Condensing Gas 87.3%
Keston K 60P Condensing LPG 89.1%
Keston K 80 Condensing Gas 87.4%
Keston K 80P Condensing LPG 89.8%
Keston Keston 30C Condensing Gas 89.0%
Keston KESTON COMBI C30P Condensing LPG 90.7%
Keston KESTON SYSTEM S30 Condensing Gas 89.5%
Keston KESTON SYSTEM S30P Condensing LPG 90.6%
Keston Q37 Condensing Gas 89.3%
Keston Q37P Condensing LPG 90.3%
Keston Qudos 28h Condensing Gas 90.3%
Keston Qudos 28hp Condensing LPG 90.5%
Keston Qudos 28s Condensing Gas 90.3%
Keston Qudos 28sp Condensing LPG 90.5%
Keston System 30 Condensing Gas 89.6%
Keston Thermomatic RSM20FB Non-Condensing Gas 78.1%
Keston Thermomatic RSM25FB Non-Condensing Gas 78.0%
Kidd VHE 1 Kerosene Condensing Oil 88.6%
Kidd VHE 1 Natural Gas Condensing Gas 85.6%
Kidd VHE 2 Kerosene Condensing Oil 89.6%
Kidd VHE 2 Natural Gas Condensing Gas 85.7%
Kidd VHE 260 Kerosene Condensing Oil 89.2%
Kidd VHE 260 Natural Gas Condensing Gas 85.9%
Lamborghini ALBA 20 AS Non-Condensing Gas 79.1%
Lamborghini ALBA 20 ASB Non-Condensing Gas 79.7%
Lamborghini ALBA 20 BS Non-Condensing Gas 76.6%
Lamborghini ALBA 24 AS Non-Condensing Gas 78.9%
Lamborghini ALBA 24 ASB Non-Condensing Gas 78.8%
Lamborghini ALBA 24 RS Non-Condensing Gas 79.0%
Lamborghini Caloreclima Extrema 30 C Condensing Gas 89.1%
Lamborghini Caloreclima Extrema 38 C Condensing Gas 89.1%
Lamborghini Futuria 24 MCW Top U/GB Condensing Gas 88.3%
Lamborghini Vela X 24 MBS W Top/GB Non-Condensing Gas 78.8%
Lamborghini Xilo 20 MCS W Top U/GB Non-Condensing Gas 76.6%
Lamborghini Xilo D 24 MCS W Top U/GB Non-Condensing Gas 78.9%
Main 12 HE Condensing Gas 85.8%
Main 12 HE A Condensing Gas 88.7%
Main 12 Heat ErP Condensing Gas 88.7%
Main 15 HE Condensing Gas 85.6%
Main 15 HE A Condensing Gas 89.0%
Main 15 Heat ErP Condensing Gas 89.4%
Main 18 HE Condensing Gas 85.6%
Main 18 HE A Condensing Gas 88.7%
Main 18 Heat ErP Condensing Gas 88.7%
Main 24 HE Condensing Gas 85.6%
Main 24 HE A Condensing Gas 88.8%
Main 24 Heat ErP Condensing Gas 88.8%
Main 30 HE A Condensing Gas 88.8%
Main 30 Heat ErP Condensing Gas 88.8%
Main 9 HE Condensing Gas 85.6%
Main Combi 24 Non-Condensing Gas 78.6%
Main Combi 24 HE Condensing Gas 86.4%
Main Combi 25 Eco Condensing Gas 89.0%
Main Combi 30 Eco Condensing Gas 88.7%
Main Combi 30 HE Condensing Gas 86.4%
Main Combi Eco Classic 24 Condensing Gas 89.0%
Main Combi Eco Classic 30 Condensing Gas 88.7%
Main Combi Eco Elite 25 Condensing Gas 89.0%
Main Combi Eco Elite 30 Condensing Gas 88.7%
Main Eco Elite 24 System ErP Condensing Gas 89.1%
Main Eco Elite 25 Combi ErP Condensing Gas 89.0%
Main Eco Elite 28 System ErP Condensing Gas 88.8%
Main Eco Elite 30 Combi ErP Condensing Gas 88.7%
Main System 18 HE Condensing Gas 86.7%
Main System 24 Eco Condensing Gas 89.1%
Main System 24 HE Condensing Gas 86.5%
Main System 28 Eco Condensing Gas 88.8%
Main System 28 HE Condensing Gas 86.4%
Main System Eco Elite 24 Condensing Gas 89.1%
Main System Eco Elite 28 Condensing Gas 88.8%
Malvern 30 NG Condensing Gas 83.8%
Malvern 40 NG Condensing Gas 84.2%
Malvern 50 NG Condensing Gas 84.8%
Malvern 70 NG Condensing Gas 83.0%
Malvern 70/80 NG Condensing Gas 84.5%
Malvern Combi NG Condensing Gas 85.2%
Malvern Dbi Combi Condensing LPG 87.2%
Malvern Dbi Combi NG Condensing Gas 86.2%
Malvern tentwenty Condensing Gas 86.3%
Malvern twentytwentysix Condensing Gas 85.6%
Maxol Eastham 25bf Non-Condensing Gas 65.0%
Maxol Eastham 25of Non-Condensing Gas 65.0%
Maxol Eastham 40bf Non-Condensing Gas 65.0%
Maxol Eastham 50 Non-Condensing Gas 65.0%
Maxol Homewarm 600 Non-Condensing Gas 65.0%
Maxol Marathon e Non-Condensing Gas 65.0%
Maxol Marathon mk1 Non-Condensing Gas 65.0%
Maxol Marathon mk1r Non-Condensing Gas 65.0%
Maxol Marathon r Non-Condensing Gas 65.0%
Maxol Maxolympic 15 Non-Condensing Gas 65.0%
Maxol Maxolympic f15 Non-Condensing Gas 65.0%
Maxol Maxolympic f20 Non-Condensing Gas 65.0%
Maxol Microsystem 402MDF Non-Condensing Gas 79.9%
Maxol Microsystem 402RF Non-Condensing Gas 79.9%
Maxol Microsystem 502MDF Non-Condensing Gas 79.9%
Maxol Microsystem 502RF Non-Condensing Gas 79.9%
Maxol Microturbo 402 RF Non-Condensing Gas 79.9%
Maxol Microturbo 402MDF Non-Condensing Gas 79.9%
Maxol Microturbo 40mdf Non-Condensing Gas 72.0%
Maxol Microturbo 40rf Non-Condensing Gas 72.0%
Maxol Microturbo 502MDF Non-Condensing Gas 79.9%
Maxol Microturbo 502RF Non-Condensing Gas 79.9%
Maxol Microturbo 50mdf Non-Condensing Gas 72.0%
Maxol Microturbo 50rf Non-Condensing Gas 72.0%
Maxol Morocco 20 Non-Condensing Gas 71.4%
Maxol Morocco 30 Non-Condensing Gas 71.4%
Maxol Morocco 40 Non-Condensing Gas 71.4%
Maxol Mystique coalridge Non-Condensing Gas 65.0%
Maxol Ruud 118 Non-Condensing Gas 65.0%
Maxol Supacombi HE 24 Condensing Gas 86.4%
Maxol Supacombi HE 28 Condensing Gas 86.5%
Merlin 100/150 BF Non-Condensing Oil 81.3%
Merlin 100/150 CF Non-Condensing Oil 81.3%
Merlin 2000 40/60 BL Non-Condensing Oil 85.3%
Merlin 2000 40/60 CF Non-Condensing Oil 85.3%
Merlin 2000 60/80 BL Non-Condensing Oil 85.5%
Merlin 2000 60/80 CF Non-Condensing Oil 85.5%
Merlin 2000 80/100 BL Non-Condensing Oil 85.6%
Merlin 2000 80/100 CF Non-Condensing Oil 85.6%
Merlin 45/65 BL Non-Condensing Oil 83.7%
Merlin 45/65 CF Non-Condensing Oil 83.7%
Merlin 65/95 BL Non-Condensing Oil 81.8%
Merlin 65/95 CF Non-Condensing Oil 81.8%
Merlin Internal Wall Hung 40/65 BL Non-Condensing Oil 80.8%
Merlin Internal Wall Hung 40/65 CF Non-Condensing Oil 80.8%
Merlin Internal Wall Hung 40/65 EXT Non-Condensing Oil 80.8%
MHS Boilers Stata Streamline 68 Condensing Gas 88.4%
MHS Boilers Strata 1 HE 60 Condensing Gas 89.5%
MHS Boilers Strata 1 HE-38 Condensing Gas 89.0%
MHS Boilers Strata 1 HE-45 Condensing Gas 89.4%
MHS Boilers Strata 1 HEI-38/45 Combi Condensing Gas 89.0%
MHS Boilers Strata Streamline 31 Condensing Gas 88.3%
MHS Boilers Strata Streamline 47 Condensing Gas 88.3%
MHS Boilers Strata Streamline 75 Condensing Gas 88.4%
MHS Boilers Ultramax WM 65 Condensing Gas 88.9%
Mikrofill Ethos 36C Condensing Gas 88.9%
Mikrofill Ethos 54C Condensing Gas 89.0%
Mistral BH 1 50/70 Non-Condensing Oil 85.6%
Mistral BH 2 70/90 Non-Condensing Oil 85.6%
Mistral BH 50/90 Contract Non-Condensing Oil 85.6%
Mistral BH 90/150 Contract Non-Condensing Oil 85.5%
Mistral BH1-5070 Boiler House Non-Condensing Oil 82.3%
Mistral BH2-7090 Boiler House Non-Condensing Oil 82.3%
Mistral BH3 90/120 Non-Condensing Oil 85.5%
Mistral BH3-9012 Boiler House Non-Condensing Oil 83.8%
Mistral BH4 120/150 Non-Condensing Oil 85.5%
Mistral BH4-1215 Boiler House Non-Condensing Oil 83.8%
Mistral Boilers CBH5 41/50 Condensing Oil 90.4%
Mistral Boilers CBH6 50/58 Condensing Oil 90.4%
Mistral Boilers CBH7 58/68 Condensing Oil 90.4%
Mistral Boilers CKUT5 41/50 Condensing Oil 90.4%
Mistral Boilers CKUT6 50/58 Condensing Oil 90.4%
Mistral Boilers CKUT7 58/68 Condensing Oil 90.4%
Mistral Boilers CMC5 41/50 Condensing Oil 88.7%
Mistral Boilers CMC6 50/58 Condensing Oil 88.7%
Mistral Boilers CMC7 58/68 Condensing Oil 88.7%
Mistral Boilers COD5 41/50 Condensing Oil 90.4%
Mistral Boilers COD5 SS 41/50 Condensing Oil 90.4%
Mistral Boilers COD6 50/58 Condensing Oil 90.4%
Mistral Boilers COD6 SS 50/58 Condensing Oil 90.4%
Mistral Boilers COD7 58/68 Condensing Oil 90.4%
Mistral Boilers COD7 SS 58/68 Condensing Oil 90.4%
Mistral Boilers CODMC5 41/50 Condensing Oil 88.7%
Mistral Boilers CODMC6 50/58 Condensing Oil 88.7%
Mistral Boilers CODMC7 58/68 Condensing Oil 88.7%
Mistral Boilers CS5 41/50 Condensing Oil 90.4%
Mistral Boilers CS6 50/58 Condensing Oil 90.4%
Mistral Boilers CS7 58/68 Condensing Oil 90.4%
Mistral C 50/90 Plus Non-Condensing Oil 83.9%
Mistral C 50/90 Standard Contract Non-Condensing Oil 83.9%
Mistral C 90/150 Contract Non-Condensing Oil 83.8%
Mistral C 90/150 Plus Contract Non-Condensing Oil 83.8%
Mistral C1 50/70 Plus Non-Condensing Oil 83.9%
Mistral C1 50/70 Standard Non-Condensing Oil 83.9%
Mistral C1-5070 Combi Non-Condensing Oil 80.6%
Mistral C2 70/90 Plus Non-Condensing Oil 83.9%
Mistral C2 70/90 Standard Non-Condensing Oil 83.9%
Mistral C2-7090 Combi Non-Condensing Oil 80.6%
Mistral C3 90/120 Plus Non-Condensing Oil 83.8%
Mistral C3 90/120 Standard Non-Condensing Oil 85.5%
Mistral C3-9012 Mega Combi Non-Condensing Oil 82.1%
Mistral C4 120/150 Plus Non-Condensing Oil 83.8%
Mistral C4 120/150 Standard Non-Condensing Oil 83.8%
Mistral C4-1215 Mega Combi Non-Condensing Oil 82.1%
Mistral CBH – 5070 Boiler House Condensing Oil 90.7%
Mistral CBH – 7090 Boiler House Condensing Oil 90.7%
Mistral CBH 15/26 Contract Condensing Oil 90.8%
Mistral CBH 26/40 Contract Condensing Oil 90.9%
Mistral CBH1 15/20 Condensing Oil 90.8%
Mistral CBH2 20/26 Condensing Oil 90.8%
Mistral CBH3 – 9012 Boiler House Condensing Oil 90.0%
Mistral CBH3 26/35 Condensing Oil 90.9%
Mistral CBH4 – 1215 Boiler House Condensing Oil 90.0%
Mistral CBH4 35/40 Condensing Oil 90.9%
Mistral CC 15/26 Plus Contract Condensing Oil 89.1%
Mistral CC 15/26 Std Contract Condensing Oil 89.1%
Mistral CC 26/40 plus contract Condensing Oil 89.2%
Mistral CC 26/40 Std Contract Condensing Oil 89.2%
Mistral CC1 – 5070 Condensing Combi Condensing Oil 89.0%
Mistral CC1 15/20 Plus Condensing Oil 89.1%
Mistral CC1 15/20 Std Condensing Oil 89.1%
Mistral CC2 – 7090 Condensing Combi Condensing Oil 89.0%
Mistral CC2 20/26 Plus Condensing Oil 89.1%
Mistral CC2 20/26 Std Condensing Oil 89.1%
Mistral CC3 – 9012 Combi Condensing Oil 88.3%
Mistral CC3 26/35 plus Condensing Oil 89.2%
Mistral CC3 26/35 Std Condensing Oil 89.2%
Mistral CC4 – 1215 Combi Condensing Oil 88.3%
Mistral CC4 35/40 plus Condensing Oil 89.2%
Mistral CC4 35/40 Std Condensing Oil 89.2%
Mistral CK 3 – 9012 Kitchen Condensing Oil 90.0%
Mistral CK1 – 5070 Kitchen Condensing Oil 90.7%
Mistral CK2 – 7090 Kitchen Condensing Oil 90.7%
Mistral CK4 – 1215 Kitchen Condensing Oil 90.0%
Mistral CKUT 15/26 Contract Condensing Oil 90.8%
Mistral CKUT 26/40 Contract Condensing Oil 90.9%
Mistral CKUT 3 – 9012 Kitchen Utility Condensing Oil 90.0%
Mistral CKUT1 – 5070 Kitchen Utility Condensing Oil 90.7%
Mistral CKUT1 15/20 Condensing Oil 90.8%
Mistral CKUT2 – 7090 Kitchen Utility Condensing Oil 90.7%
Mistral CKUT2 20/26 Condensing Oil 90.8%
Mistral CKUT3 26/35 Condensing Oil 90.9%
Mistral CKUT4 – 1215 Kitchen Utility Condensing Oil 90.0%
Mistral CKUT4 35/40 Condensing Oil 90.9%
Mistral COD – 5070 Outdoor Model Condensing Oil 90.7%
Mistral COD – 7090 Outdoor Model Condensing Oil 90.7%
Mistral COD – C – 5070 Outdoor Combi Condensing Oil 89.0%
Mistral COD – C – 7090 Outdoor Combi Condensing Oil 89.0%
Mistral COD – SS – 5070 Outdoor Sealed System Condensing Oil 90.7%
Mistral COD – SS – 7090 Outdoor Sealed System Condensing Oil 90.7%
Mistral COD 15/26 Contract Condensing Oil 90.8%
Mistral COD 26/40 Contract Condensing Oil 90.9%
Mistral COD SS 15/26 Contract Condensing Oil 90.8%
Mistral COD1 15/20 Condensing Oil 90.8%
Mistral COD1 SS 15/20 Condensing Oil 90.8%
Mistral COD2 20/26 Condensing Oil 90.8%
Mistral COD2 SS 20/26 Condensing Oil 90.8%
Mistral COD3 – 9012 Outdoor Condensing Oil 90.0%
Mistral COD3 – C – 9012 Outdoor Combi Condensing Oil 88.3%
Mistral COD3 – SS – 9012 Outdoor Sealed System Condensing Oil 90.0%
Mistral COD3 26/35 Condensing Oil 90.9%
Mistral COD4 – 1215 Outdoor Condensing Oil 90.0%
Mistral COD4 – C – 1215 Outdoor Combi Condensing Oil 88.3%
Mistral COD4 – SS – 1215 Outdoor Sealed System Condensing Oil 90.0%
Mistral COD4 35/40 Condensing Oil 90.9%
Mistral CODC 15/26 Plus Contract Condensing Oil 89.1%
Mistral CODC 15/26 Std Contract Condensing Oil 89.1%
Mistral CODC 26/40 plus contract Condensing Oil 89.2%
Mistral CODC 26/40 Std Contract Condensing Oil 89.2%
Mistral CODC1 15/20 Plus Condensing Oil 89.1%
Mistral CODC2 20/26 Plus Condensing Oil 89.1%
Mistral CODC2 20/26 Std Condensing Oil 89.1%
Mistral CODC3 26/35 plus Condensing Oil 89.2%
Mistral CODC3 26/35 Std Condensing Oil 89.2%
Mistral CODC4 35/40 plus Condensing Oil 89.2%
Mistral CODC4 35/40 Std Condensing Oil 89.2%
Mistral CODSS 26/40 Contract Condensing Oil 90.9%
Mistral CODSS 3 26/35