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Boilers

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.

Navien Gas Tankless Boilers

NFB-***

Navien NFB Series High efficiency Condensing Heating boiler

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Model Family: NFB-***
Annual Fuel Utilization Efficiency: 95% AFUE
Energy Star Rated: Energy Star Rated
Heat Exchanger Warranty: 15 Year Heat Exchanger Warranty
Warranty: 5 Year Part Warranty
Manufacturer's Stated Benefits:
  • One Year Limited warranty on Labor
  • Optional NaviLink Wi-Fi remote control
  • Cascading and common venting capable
  • 10:1 turndown ratio
  • Advanced user interface and controls with intuitive text display, simplifies boiler setup.
  • Built-in hardware to connect a boiler system pump, 3 zone pumps or 3 zone valves.
NHB-***

Navien NHB Series Tankless Condensing Gas Boiler

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Model Family: NHB-***
Annual Fuel Utilization Efficiency: 95% AFUE
Energy Star Rated: Energy Star Rated
Heat Exchanger Warranty: 15 Year Warranty
Warranty: 5 Year Warranty
Manufacturer's Stated Benefits:
  • 15:1 Turndown Ratio
  • Intregrated system setup, operations and troubleshooting
  • Anti-Freeze feature
  • Easy conversion from natural gas to propane
  • Dual stainless steel heat exchangers
  • Super condensing efficiency
  • Venting Type:Forced Draft Direct Vent
  • Total control -- freeze protection, all system set up, operations and troubleshooting available at your fingertips

Navien Gas Tankless Combination Boilers

NCB-***E

Navien NCB-E Combi-Boilers

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Model Family: NCB-***E
Annual Fuel Utilization Efficiency: 95.0% AFUE
Energy Star Rated: Energy Star Rated
Heat Exchanger Warranty: 10 Year Warranty
Warranty: 5 Year parts
Manufacturer's Stated Benefits:
  • 1 Year Labor Warranty
  • Compact space saving design
  • Three stainless steel heat exchangers, two for heating and one specifically for hot water
  • Total control -- freeze protection, all system set up, operations and troubleshooting available at your fingertip
  • Natural or LP gas compatibility
NFC-***

Navien NFC Series Condensing Fire Tube Combi-boilers

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Model Family: NFC-***
Annual Fuel Utilization Efficiency: 95% AFUE
Energy Star Rated: Energy Star Rated
Heat Exchanger Warranty: 10 Year Heat Exchanger Warranty
Warranty: Parts 5 year warranty
Manufacturer's Stated Benefits:
  • 1 Year Labor Warranty
  • Approved venting: 2in up to 60ft or 3in up to 150ft PVC/CPVC/PP/SS
  • 11:1 TDR for DHW and up to 11:1 TDR for HTG
  • 5 modes of external domestic recirculation control built-in (Always on, Intelligent, Scheduling, HotButton, Aquastat)
  • Patented stainless steel fire tube heat exchanger

Weil-McLain Gas Boilers

EVG

Evergreen Gas Boiler

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Model Family: EVG
Annual Fuel Utilization Efficiency: 95% AFUE
Energy Star Rated: ENERGY STAR® Most Efficient 95% AFUE* rating
Heat Exchanger Warranty: 12 Year Heat Exchanger Warranty
Warranty: 5 Year Parts Warranty with Registration within 90 days of installation
Manufacturer's Stated Benefits:
  • Stainless Steel Fire Tube Heat Exchanger with non-metallic base
  • Floor Standing Boiler with optional wall mount kit
  • Modulating Condensing Boiler with 10:1 Turndown
  • 4 Pump/Auxiliary Outputs
  • Up to 8 Multiple Boiler Control with lead/lag rotation
  • Modbus® to BMS connectivity
  • Each input can be assigned to a priority (Up to 3 Priorities)
  • Multiple Inputs can be assigned one priority (Zone Based Control)
  • All Lag Boiler Inputs and Output can be used
  • 0-10 Volt Input (modulation or set point)
  • Configurable Auxiliary Input/Output System
  • Boiler Circulator Included
UG

Ultra S4 Gas Boiler

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Model Family: UG
Annual Fuel Utilization Efficiency: Up to 94% AFUE
Energy Star Rated: ENERGY STAR®
Heat Exchanger Warranty: 12 Year Heat Exchanger Warranty
Warranty: 2 Year Parts Warranty
Manufacturer's Stated Benefits:
  • Gas fired water boiler with cast aluminum heat exchanger
  • Venturi mixing body mixes air and gas providing higher efficiency
  • Designed to operate in low temperature condensing applications
  • Outdoor reset and domestic hot water priority standard
  • Negative regulated gas valve precisely delivers gas to the boiler
  • U-Control gives you the power for easy set-up and maintenance
  • Modulates with 5 to 1 turn-down ratio
  • Variable speed motor matches combustion output to heating needs
  • High grade stainless steel burner features quiet operation, high efficiency, and cleaner combustion for low NOx applications
CGi series 3

CGi Gas Boiler Series 3

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Model Family: CGi series 3
Annual Fuel Utilization Efficiency: 84% AFUE
Energy Star Rated: No
Heat Exchanger Warranty: 20 Year Heat Exchanger Limited Warranty
Warranty: 2 Year Parts Limited Warranty
Manufacturer's Stated Benefits:
  • Gas fired water boiler with cast iron sections
  • Natural draft and direct exhaust capability
  • Can be used with natural or propane gas
  • All units are factory-tested
  • Compact design saves valuable living space
  • No vertical draft hood and no mechanical vent dampe
  • Intermittent electronic ignition with standard components for easy servicing
CGa Series 2

CGa Gas Boiler Series 2

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Model Family: CGa Series 2
Annual Fuel Utilization Efficiency: Up to 84% AFUE
Energy Star Rated: No
Heat Exchanger Warranty: 12 Year Heat Exchanger Limited Warranty
Warranty: 2 Year Parts Limited 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

Weil-McLain Oil Boilers

UG-***

Ultra Oil Boiler

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Model Family: UG-***
Annual Fuel Utilization Efficiency: 87% AFUE
Energy Star Rated: ENERGY STAR®
Heat Exchanger Warranty: 20 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: 20 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: 20 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: Up to 85% AFUE
Energy Star Rated: No
Heat Exchanger Warranty: 10 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