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Preferred™ Series BW5 Boiler

Reliable Radiant Heat Plus Domestic Hot Water

Engineered for efficiency and built cast-iron tough, this boiler is one of our most advanced oil-fueled radiant heat systems. It delivers quiet, even, draft-free warmth and an AFUE rating of up to 86.2% for unbeatable energy savings.

AFUE Efficiency :
Up to 86.2%
  • Oil fuel
  • Up to 86.2% AFUE
  • Tankless heater coil
  • Sectional cast-iron design
  • Cast-iron heat exchanger
  • Small compact design
  • Swing burner door
  • 5-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 5-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 Up to 86.2% AFUE                                
Rated Heating Input 112,000 - 189,000 BTUH
Rated Heating Capacity 98,000 - 189,000 BTUH
Heat Format Water


Control Type Integrated boiler control


Heat Exchanger Cast iron
Burners Oil (Beckett or Riello)
Domestic water 2.90 - 4.25 gallons per minute (GPM)
Ignition Spark
Vent damper Barometric
Fuel Oil


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.