Johnson and Starley - 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%

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