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| Residential Boilers |
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| Model | Series | AFUE | Heating Capacity
(Btuh) | Description | | BW1 | Comfort™ 80 | 80% | 37,500 - 28,0000 | Gas-fired standing pilot water boiler | | BW2 | Comfort™ 80 | 80% | 37,500 - 28,0000 | Gas-fired electronic ignition water boiler | | BW3 | Performance™ 84 | 84% | 42,500 - 22,5000 | Gas-fired induced combustion water boiler | | BW4 | Performance™ 86 | 86% | 91,000 - 280,000 | Oil-fired water boiler | | BW5 | Performance™ 86 | 86% | 91,000 - 280,000 | Oil-fired water boiler, tankless coil | | BW9 | Performance™ 90 | 90% | 50,000 - 200,000 | Gas-fired water boiler | | BS1 | Comfort™ 80 | 80% | 75,000 - 299,000 | Gas-fired standing pilot steam boiler | | BS2 | Comfort™ 80 | 80% | 75,000 - 299,000 | Gas-fired electronic ignition steam boiler |
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