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Gas / Oil 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

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
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.

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