Legacy™ Line BWB Boiler

Model BWB


Durability, Affordability and Designed to Fit

Our compact, gas-fired hot water boiler combines a cast-iron heat exchanger and titanium composite burners for radiant heating comfort you can depend on. With 82% AFUE efficiency, it's an improvement upon an older model you may be replacing.

  • Features
  • Specifications
  • Documents
  • 82.0% AFUE
  • Cast iron heat exchanger
  • Gas-fired models
  • Integrated boiler control
  • Titanium composite burners
  • Swing burner door
  • 10-year parts limited warranty and a 20-year parts limited warranty on heat exchanger section1
1 To the original owner, the Bryant BW boiler is covered by a 10-year parts limited warranty and a 20-year parts limited warranty on the heat exchanger section. Ask your Bryant dealer about optional extended warranties, which may include labor. See warranty certificate at for complete details.


Energy Efficiency 82.0% AFUE
Rated Heating Input 45,000 - 295,000 BTUH
Rated Heating Capacity 37,000 - 242,000 BTUH
Heat Format Water


Control Type Integrated boiler control


Heat Exchanger Cast iron
Burners Titanium composite
Ignition Electronic
Vent damper Standard electric
Fuel Gas


Casing Full fiberglass insulation
Section Seals Cast iron push nipples
Bryant reserves the right to discontinue or change any specification or design without prior notice or obligation.

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California residents please see Proposition 65.