The Preferred BW3 Boiler is our most versatile gas-fired, radiant heat system, engineered with an up to 84.4% AFUE rating for outstanding energy efficiency. Rugged cast iron construction and compact design make it a value-add fit for any home.

Preferred Series BW3 Boiler

    • Up to 84.4 AFUE.
    •  Cast iron heat exchanger.
    •  Gas-fired models.
    •  Stainless steel/titanium alloy composite burners.
    •  Fiberglass insulated casing.
    •  Small, compact design.
    •  5-year parts limited warranty and a 20-year parts limited warranty on heat exchanger section.
    • BW3A