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Model Family |
BWM |
BW9 |
BW3 |
Annual Fuel Utilization Efficiency |
Up to 95% AFUE |
90% AFUE |
Up to 84.4% AFUE |
Energy Star Rated |
ENERGY STAR® |
ENERGY STAR® |
No |
Heat Exchanger Warranty |
15-year heat exchanger limited parts warranty |
15-year parts limited warranty on heat exchanger section |
20-year parts limited warranty on heat exchanger section |
Warranty |
10-year limited parts warranty with timely registration |
5-year parts limited warranty |
5-year parts limited warranty |
Manufacturer’s Stated Benefits |
- Modulating
- Gas-fired
- Integrated boiler control
- Stainless steel heat exchanger
- Built in primary/secondary piping
|
- Integrated boiler control
- Cast-iron heat exchanger
- Pressure-relief valve
|
- Integrated boiler control
- Cast-iron heat exchanger
- Pressure-relief valve
- Gas-fired models
- Stainless steel/titanium alloy composite burners
- Fiberglass insulated casing
- Small, compact design
|