Navien®

NFB-175H 95% High-Efficiency Condensing Heating Fire Tube Boiler

NVNNFB175H MFG #: NFB-175H
NFB-175H 95% High-Efficiency Condensing Heating Fire Tube Boiler
  • Connection Type: NPT
  • Fuel Type: Liquid Propane / Natural Gas
  • Housing Material: Cold Rolled Carbon Steel
  • Ignition Type: Electronic
  • Input Capacity: 175,000 BTU/hr
  • Type: High-Efficiency
  • Vent Type: Forced Draft Direct
  • AFUE Rating: 95%
  • Dimensions: 17.3 in W x 17.3 in D x 27.6 in H
  • Manufacturer: NAVIEN INC
  • Manufacturer #: NFB-175H
  • Mounting Type: Wall
  • Series: NFB-H
  • Vent Size: 2 or 3 in
We totally reinvented fire tube technology from the ground up and we continue to advance our boiler technology to a higher level with the new NFB-H boiler series.

NFB-175H 95% COND FIRE TUBE BOILER
  • Features
  • 13.2:1 TDR
  • 95% AFUE – Energy Star certified
  • 2" venting up to 65', 3" venting up to 150'
  • Advanced controls with Intuitive user interface and Setup Wizard
  • Built-in powered connections for 3 zone valves or 3 zone pumps
  • Common venting up to 8 units and cascading up to 16 units
  • Approved for high altitude up to 10,100 ft. (NG and LP), conversion kits included
  • Patented stainless steel fire tube heat exchanger with non-metallic condensate base
  • Installations in or near media rooms, recreation rooms or any living areas of the house are possible with the quiet running NFB-H boilers.
  • Save time and cost in retrofit application by reusing existing 1/2" gas lines for up to 24' in length. Subject to local code.