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Boilers

If your home has hot water radiators in each room for heat, you have a boiler to heat the water. Like a furnace, the energy efficiency of a boiler is given as the Annual Fuel Utilization Efficiency (AFUE). Boilers manufactured since 1992 must have an AFUE of at least 80%. We offer a complete line of gas and oil boilers starting at 80% AFUE and up.

From single-family homes to large-scale apartment complexes, the Weil-McLain name is synonymous with warmth and comfort. Our high quality gas boilers can be designed to fit the tightest spaces, and feature boiler controls that are easy to use and optimize operation for comfort while maximizing energy savings.

Gas Boiler Product Offering

BWM

Preferred™ Series BWM Boiler

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Model Family: BWM
Annual Fuel Utilization Efficiency: Up to 95% AFUE
Energy Star Rated: ENERGY STAR®
Heat Exchanger Warranty: 15-year heat exchanger limited parts warranty
Warranty: 10-year limited parts warranty with timely registration
Manufacturer's Stated Benefits:
  • Modulating
  • Gas-fired
  • Integrated boiler control
  • Stainless steel heat exchanger
  • Built in primary/secondary piping
BW9

PREFERRED™ SERIES BW9 BOILER

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Model Family: BW9
Annual Fuel Utilization Efficiency: Up to 90% AFUE
Energy Star Rated: ENERGY STAR®
Heat Exchanger Warranty: 15-year parts limited warranty on heat exchanger section
Warranty: 10-year parts limited warranty if registered in 90 days
Manufacturer's Stated Benefits:
  • Integrated boiler control
  • Cast-iron heat exchanger
  • Pressure-relief valve
BW3

PREFERRED™ SERIES BW3 BOILER

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Model Family: BW3
Annual Fuel Utilization Efficiency: Up to 84.4% AFUE
Energy Star Rated: No
Heat Exchanger Warranty: 20-year parts limited warranty on heat exchanger section
Warranty: 5-year parts limited warranty if registered in 90 days
Manufacturer's Stated Benefits:
  • 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
BS2

Legacy™ 80 Boiler BS2

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Model Family: BS2
Annual Fuel Utilization Efficiency: Up to 82.7% AFUE
Energy Star Rated: No
Heat Exchanger Warranty: 15-year parts limited warranty on heat exchanger section
Warranty: 5-year parts limited warranty
Manufacturer's Stated Benefits:
  • Integrated boiler control
  • Cast-iron heat exchanger
  • Pressure-relief valve
  • Gas-fired models
  • Water or steam models
  • Standard standing pilot or optional electronic ignition
  • Electric vent damper
  • Stainless steel/titanium alloy composite burners
  • Compact design