Carrier Comfort 80 BoilerTraditional Gas-Fired, Cast Iron Radiant Heat Boiler The Comfort 80 Boiler is just what you'd expect with traditional Carrier quality: cast iron exchanger and gas-fired. Our advanced engineering keeps your bills low, with up to 81.5 AFUE rating.
Standard Features | Limited Warranty | Specifications

Recognitions and Certifications
Standard Features
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Fully assembled and pre-wired
Integral draft hood
Heavy-duty cast iron sections and push nipples
Pressure-relief valve
Transformer and limit controls with relay
Combination pressure/temperature gauge
Continuous pilot or electronic intermittent-pilot ignition
Titanium composite burners
Propane gas convertible with accessory kit
Flame-rollout safety shutoff system
Draft-safety switch
Circulation pump shipped unassembled
Left- or right-side pipe tappings
Limited Warranty
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20-year parts on heat exchanger section
10 year extended warranty when registered within 90 days, otherwise 5 years
Specifications
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Model No. | Rated Heating Capacity (BTUH) | AFUE % | I=B=R Heating Output (BTUH) |
BW3AAN000042 | 36,000 | 84.4 | 31,000 |
BW3AAN000075 | 63,000 | 83.4 | 55,000 |
BW3AAN000112 | 94,000 | 83.0 | 82,000 |
BW3AAN000150 | 125,000 | 82.7 | 109,000 |
BW3AAN000187 | 155,000 | 82.3 | 135,000 |
BW3AAN000225 | 186,000 | 82.0 | 162,000 |
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