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New Navien Commercial Fire Tube Boiler!

The New Navien Commercial Fire Tube Boiler (NFB-C Model) is now available and will be in stock starting mid-October! Models include NFB-301C & NFB-399. The new units are reinventing fire tube technology from the ground up and include the following features:

  • Patented stainless steel heat exchanger which eliminates high stress point welds
  • 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
  • Optional NaviLink Wi-Fi remote control
  • Cascading and common venting capable
  • 10:1 Turn Down Ratio
  • AFUE 95.0% — Energy Star 2018 most efficient rating

If you would like more information about these units or would like to place an order please email

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