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.

Gas Boiler Product Offering

ECO

ECO Wall Mount Gas Boiler

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Model Family: ECO
Annual Fuel Utilization Efficiency: Up to 95.1% AFUE
Energy Star Rated: Energy Star Rated
Heat Exchanger Warranty: 12 Year Heat Exchanger Warranty
Warranty: 2 Year Parts Warranty
Manufacturer's Stated Benefits:
  • Durable stainless steel fire tube heat exchanger
  • Streamlined design configurable for installation
  • Display can be mounted on the boiler or wall (up to 2’ away)
  • Components positioned for fast and easy service
  • Multiple vent configurations and material options
  • Optional accessories to match virtually any installation
WM97

WM97+ CT Wall Mount Gas Boiler

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Model Family: WM97
Annual Fuel Utilization Efficiency: Up to 95.2% AFUE
Energy Star Rated: Exceeds Energy Star requirements with efficiency
Heat Exchanger Warranty: 12 Year Heat Exchanger Warranty
Warranty: 2 Year Parts Warranty
Manufacturer's Stated Benefits:
  • Stylish, compact wall mount design for easy installation, service and maintenance
  • Unique condensing stainless steel fire tube heat exchanger design
  • Built-in boiler circulator
  • Built-in primary/secondary piping option
  • Pre-wired terminal strip for quick and easy electrical connections
  • Convenient indirect-fired water heater connection
  • Capable to vent with PVC, PP and SS up to 100'
AQUA

AquaBalance Wall Mount Gas Combi and Heat Only Boiler

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Model Family: AQUA
Annual Fuel Utilization Efficiency: 94.4% AFUE
Energy Star Rated: ENERGY STAR®
Heat Exchanger Warranty: 10- Year Heat Exchanger Warranty
Warranty: 2 Year Parts Warranty
Manufacturer's Stated Benefits:
  • High efficient condensing technology – low fuel usage, saves energy
  • Compact design – increases placement options
  • Heavy gauge insulated jacket – provides quiet operation
  • 10-to-1 turn down ratio – precisely matches minimal energy usage to the immediate system need
  • Single tube, large diameter, ASME certified 316L Stainless Steel heat exchanger
  • Low NOx rated – low emissions level achieved South Coast certification
  • Pre-wired, plug-in ready electrical design
  • Contractor friendly removable sides – makes service clean and easy
  • Wall mounting bracket and hardware
  • 24VAC thermostat relay
CGa

Gas Boiler Series 2

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Model Family: CGa
Annual Fuel Utilization Efficiency: Up to 84% AFUE
Energy Star Rated: No
Heat Exchanger Warranty: 12 Year Heat Exchanger Warranty
Warranty: 2 Year Parts Warranty
Manufacturer's Stated Benefits:
  • Compact design saves valuable living space
  • Stainless steel burners for quieter ignition, longer life, and improved combustion
  • Gas fired water boiler with cast iron sections
  • Easily accessible controls, vertical flueways and top cleaning for easy and quick servicing
EG

EG Gas Boiler

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Model Family: EG
Annual Fuel Utilization Efficiency: Up to 84% AFUE
Energy Star Rated: No
Heat Exchanger Warranty: 12 Year Heat Exchanger Warranty
Warranty: 2 Year Parts Warranty
Manufacturer's Stated Benefits:
  • Comes with automatic vent damper for higher efficiencies and reduced fuel consumption
  • Easy access to controls for convenient servicing
  • Configured for Natural Gas, intermittent electronic ignition only
  • A versatile gas cast iron boiler for water or steam applications
  • Cast iron heat exchanger

Oil Boiler Product Offering

ULTRA

Ultra Oil Boiler

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Model Family: ULTRA
Annual Fuel Utilization Efficiency: 87% AFUE
Energy Star Rated: ENERGY STAR®
Heat Exchanger Warranty: 12 Year Limited Heat Exchanger Warranty
Warranty: 2 Year Limited Warranty
Manufacturer's Stated Benefits:
  • Optional Advanced Features Module that provides indoor/outdoor reset, DHW priority, stage firing and more
  • Dedicated water-only oil boiler
  • Flexible direct or chimney venting - no power assisted fan needed
  • Reversible swing-away burner door
  • Three-pass cast iron heat exchanger with captured elastomer seals
WGO

WGO Oil Boiler

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Model Family: WGO
Annual Fuel Utilization Efficiency: Up to 87% AFUE
Energy Star Rated: ENERGY STAR®
Heat Exchanger Warranty: 12 Year Limited Heat Exchanger Warranty
Warranty: 2 Year Limited Warranty
Manufacturer's Stated Benefits:
  • Dedicated water-only oil boiler with cast iron sections - no tankless heater or cover plate
  • Quick open top and swing-away burner door with full chamber access increases visibility for inspection and servicing
  • Two flue outlets- rear and top - for complete venting flexibility
  • Recessed target wall design protects unit from flue brushes
  • Includes factory-wired circulator, service switch and Weil-McLain exclusive captured elastomer seals for added reliability
WTGO

WTGO Oil Boiler

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Model Family: WTGO
Annual Fuel Utilization Efficiency: Up to 87% AFUE
Energy Star Rated: ENERGY STAR®
Heat Exchanger Warranty: 12 Year Limited Heat Exchanger Warranty
Warranty: 2 Year Limited Warranty
Manufacturer's Stated Benefits:
  • Oil-fired water boiler with cast iron sections
  • High capacity / high efficiency tankless heater
  • Quick open top and swing-away burner door with full chamber access increases visibility for inspection and servicing
  • Includes factory-wired circulator, service switch and Weil-McLain exclusive captured elastomer seals for added reliability
  • Recessed target wall design protects unit from flue brushes
  • Two flue outlets- rear and top - for complete venting flexibility
  • Available assembled or as a knockdown for installation areas with limited space
SGO

SGO Oil Boiler

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Model Family: SGO
Annual Fuel Utilization Efficiency: 84% AFUE
Energy Star Rated: No
Heat Exchanger Warranty: 12 Year Limited Heat Exchanger Warranty
Warranty: 2 Year Limited Warranty
Manufacturer's Stated Benefits:
  • Oil-fired steam boiler with cast iron sections and tankless heater opening
  • Has large water content for longer steaming times
  • Two flue outlets- rear and top - for complete venting flexibility
  • Includes factory-wired circulator, service switch and Weil-McLain exclusive captured elastomer seals for added reliability
  • Quick open top and swing-away burner door with full chamber access increase visibility for inspection and servicing
  • Recessed target wall design protects unit from flue brushes