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Boulter Boilers Boiler Efficiency Rating

ModelTypeFuelEfficiency
Boulter Bonus 40/65Non-CondensingOil85.5%
Boulter Bonus 65/90ANon-CondensingOil85.0%
Boulter Bonus 65/95Non-CondensingOil83.5%
Boulter Bonus Combi 90ANon-CondensingOil82.5%
Boulter Buderus 500 – 24SCondensingGas89.7%
Boulter Buderus 500-24/CCondensingGas89.6%
Boulter Buderus 500-24/CPCondensingLPG90.6%
Boulter Buderus 500-24SPCondensingLPG90.7%
Boulter Buderus 500-28CCondensingGas89.6%
Boulter Buderus 500-28CPCondensingLPG90.6%
Boulter Buderus 600-11RPCondensingLPG90.3%
Boulter Buderus 600-11SPCondensingLPG90.8%
Boulter Buderus 600-19RPCondensingLPG90.3%
Boulter Buderus 600-19SPCondensingLPG90.3%
Boulter Buderus 600-24CPCondensingLPG90.2%
Boulter Buderus 600-24RPCondensingLPG90.2%
Boulter Buderus 600-24SPCondensingLPG90.2%
Boulter Buderus 600/11RCondensingGas89.3%
Boulter Buderus 600/11SCondensingGas89.3%
Boulter Buderus 600/19RCondensingGas89.3%
Boulter Buderus 600/19SCondensingGas89.3%
Boulter Buderus 600/24CCondensingGas89.1%
Boulter Buderus 600/24RCondensingGas89.2%
Boulter Buderus 600/24SCondensingGas89.2%
Boulter Buderus 800-24PCondensingLPG89.5%
Boulter Buderus 800-24T25/HCondensingGas88.9%
Boulter Buderus 800-24T25/VCondensingGas88.9%
Boulter Buderus 800-29PCondensingLPG89.6%
Boulter Buderus 800-29T25/HCondensingGas88.9%
Boulter Buderus 800-29T25/VCondensingGas88.9%
Boulter Buderus 800-43PCondensingLPG89.6%
Boulter Buderus 800/24CondensingGas88.5%
Boulter Buderus 800/29CondensingGas88.6%
Boulter Buderus 800/43CondensingGas88.6%
Boulter Buderus 800/60CondensingGas88.6%
Boulter Camray 15/19 ExternalNon-CondensingOil80.5%
Boulter Camray 15/21 ExternalNon-CondensingOil70.0%
Boulter Camray 15/21 InternalNon-CondensingOil70.0%
Boulter Camray 3 135/175Non-CondensingOil85.1%
Boulter Camray 3 135/175 BNon-CondensingOil70.0%
Boulter Camray 3 135/175 FNon-CondensingOil70.0%
Boulter Camray 3 40/50Non-CondensingOil70.0%
Boulter Camray 3 50/70Non-CondensingOil70.0%
Boulter Camray 3 90/130 BNon-CondensingOil70.0%
Boulter Camray 3 90/130 FNon-CondensingOil70.0%
Boulter Camray 5 100/130Non-CondensingOil80.1%
Boulter Camray 5 100/140Non-CondensingOil80.1%
Boulter Camray 5 100/140 SystemNon-CondensingOil80.1%
Boulter Camray 5 100/140 UtilityNon-CondensingOil80.1%
Boulter Camray 5 150/200Non-CondensingOil83.6%
Boulter Camray 5 150/200GNon-CondensingOil85.5%
Boulter Camray 5 150/200KNon-CondensingOil84.2%
Boulter Camray 5 200/240Non-CondensingOil84.4%
Boulter Camray 5 40/65Non-CondensingOil85.5%
Boulter Camray 5 40/65 EXNon-CondensingOil85.5%
Boulter Camray 5 65/90 EXNon-CondensingOil84.7%
Boulter Camray 5 65/90ANon-CondensingOil85.0%
Boulter Camray 5 65/90A SystemNon-CondensingOil85.0%
Boulter Camray 5 65/90A UtilityNon-CondensingOil85.0%
Boulter Camray 5 65/95Non-CondensingOil83.5%
Boulter Camray 5 95/130ANon-CondensingOil85.3%
Boulter Camray 5 95/130A SystemNon-CondensingOil85.3%
Boulter Camray 5 95/130A UtilityNon-CondensingOil85.3%
Boulter Camray 5 CombiNon-CondensingOil81.8%
Boulter Camray 5 Combi 55Non-CondensingOil83.8%
Boulter Camray 5 Combi 70ANon-CondensingOil83.3%
Boulter Camray 5 Combi 90ANon-CondensingOil83.3%
Boulter Camray 5 Combi 90BENon-CondensingOil83.0%
Boulter Camray 5 System 100/130 SystemNon-CondensingOil80.1%
Boulter Camray 5 System 40/65 SystemNon-CondensingOil85.5%
Boulter Camray 5 System 65/95 SystemNon-CondensingOil83.5%
Boulter Camray 5 U 40/65 SNon-CondensingOil85.5%
Boulter Camray 5 U 65/90 SBNon-CondensingOil84.2%
Boulter Camray 5 U 95 / 130 SANon-CondensingOil85.3%
Boulter Camray 5 Utility 100/130 UtilityNon-CondensingOil80.1%
Boulter Camray 5 Utility 40/65 UtilityNon-CondensingOil85.5%
Boulter Camray 5 Utility 65/95 UtilityNon-CondensingOil83.5%
Boulter Camray 5 Wall Hung 50/70 ExternalNon-CondensingOil85.3%
Boulter Camray 5 Wall Hung 50/70 InternalNon-CondensingOil85.3%
Boulter Camray Combi 90/130 BNon-CondensingOil70.0%
Boulter Camray Combi 90/130 FNon-CondensingOil70.0%
Boulter Camray Combi plusNon-CondensingOil78.5%
Boulter Camray Compact 50/70 BNon-CondensingOil70.0%
Boulter Camray Compact 50/70 FNon-CondensingOil70.0%
Boulter Camray Quartet 110/150 BNon-CondensingOil70.0%
Boulter Camray Quartet 110/150 FNon-CondensingOil70.0%
Boulter Camray Quartet 40/60 BNon-CondensingOil70.0%
Boulter Camray Quartet 40/60 FNon-CondensingOil70.0%
Boulter Camray Quartet 60/80 BNon-CondensingOil70.0%
Boulter Camray Quartet 60/80 FNon-CondensingOil70.0%
Boulter Camray Quartet 90/110 BNon-CondensingOil70.0%
Boulter Camray Quartet 90/110 FNon-CondensingOil70.0%
Boulter Camray Utility 110/150 BNon-CondensingOil70.0%
Boulter Camray Utility 110/150 FNon-CondensingOil70.0%
Boulter Camray Utility 40/60 BNon-CondensingOil70.0%
Boulter Camray Utility 40/60 FNon-CondensingOil70.0%
Boulter Camray Utility 60/80 BNon-CondensingOil70.0%
Boulter Camray Utility 60/80 FNon-CondensingOil70.0%
Boulter Camray Utility 90/110 BNon-CondensingOil70.0%
Boulter Camray Utility 90/110 FNon-CondensingOil70.0%
Boulter Centurion 2.5Non-CondensingGas76.6%
Boulter Centurion 3.5Non-CondensingGas77.0%
Boulter Classic 135/165Non-CondensingOil84.1%
Boulter Classic 135/165ANon-CondensingOil84.6%
Boulter Classic 50/70Non-CondensingOil79.5%
Boulter Classic 50/70 ANon-CondensingOil85.0%
Boulter Classic 50/70 A SystemNon-CondensingOil85.0%
Boulter Classic 70/90Non-CondensingOil80.3%
Boulter Classic 70/90ANon-CondensingOil84.7%
Boulter Classic 70/90A SystemNon-CondensingOil84.7%
Boulter Classic 95/130Non-CondensingOil85.5%
Boulter Classic 95/130 SystemNon-CondensingOil85.5%
Boulter Compact 50/70Non-CondensingOil81.6%
Boulter Eco-System 12/19Non-CondensingOil85.5%
Boulter Eco-System 19/26Non-CondensingOil84.2%
Boulter Economy 130Non-CondensingOil70.0%
Boulter Economy 50/70Non-CondensingOil70.0%
Boulter Economy 70/90Non-CondensingOil70.0%
Boulter Economy 90Non-CondensingOil70.0%
Boulter Pathfinder C2/10A (Gas Oil)Non-CondensingOil84.9%
Boulter Pathfinder C2/10A (Kerosene)Non-CondensingOil84.7%
Boulter Pathfinder C2/6A (Gas Oil)Non-CondensingOil84.2%
Boulter Pathfinder C2/6A (Kerosene)Non-CondensingOil84.6%
Boulter Pathfinder C2/7A (Gas Oil)Non-CondensingOil84.3%
Boulter Pathfinder C2/7A (Kerosene)Non-CondensingOil84.5%
Boulter Pathfinder C2/8A (Gas Oil)Non-CondensingOil84.4%
Boulter Pathfinder C2/8A (Kerosene)Non-CondensingOil84.5%
Boulter Pathfinder C2/9A (Gas Oil)Non-CondensingOil84.6%
Boulter Pathfinder C2/9A (Kerosene)Non-CondensingOil84.6%
Boulter Pathfinder GA 36 kWNon-CondensingGas79.3%
Boulter Pathfinder GA 48 kWNon-CondensingGas79.6%
Boulter Pathfinder GA 60kWNon-CondensingGas79.6%
Boulter Pathfinder GA 70kWNon-CondensingGas79.5%