Navien NFB-H Condensing Gas Boiler (Heat Only), 139,000 BTU Navien
Navien NFB-H Condensing Gas Boiler (Heat Only), 139,000 BTU Navien
Navien NFB-H Condensing Gas Boiler (Heat Only), 139,000 BTU Navien
Navien NFB-H Condensing Gas Boiler (Heat Only), 139,000 BTU
Brand: Navien
Part#: NFB-175H
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Description

Rebate:
This boiler meets the requirements for a federal tax credit and qualifies for a 30% (up to $600) rebate. Click here for more info.
Navien NFB-150H is an Energy Star listed heat-only mod-con boiler with 139,000 BTU Net Output (AHRI) and integrated 3-zone control.

Features:
  • One-piece combustion chamber and innovative heat exchanger design for improved flow and performance
  • Energy Star certified
  • Compatible with PVC, CPVC, PolyPropylene (recommended) and St. Steel vent pipe
  • Field convertible from natural gas to propane (kit included)
  • Integrated 3-zone controller (for zone valves or circulators - replaces common 3-zone switching relay/zone control module)
  • Packed with safety features
  • Simple and intuitive front panel control for easy set-up and diagnostics
  • Common vent for up to 8 units and cascade up to 16

Technical Specifications:
  • Input Max Fire (BTU): 175,000
  • Net AHRI Rating (BTU): 139,000
  • DOE Heating Capacity (BTU): 160,000
  • Efficiency (AFUE): Up to 95%
  • Turndown (Modulation) Ratio: 13.2:1
  • Fuel Type: Natural Gas (NG) or Propane (LP)
  • Boiler Connections: 1-1/4" NPT
  • Gas Connection: 3/4" NPT
  • Gas Supply Pressure: 3.5 - 10.5 WC (natural gas), 8 - 13 WC (propane)
  • Boiler Operating Pressure: 6–80 psi
  • Condensate Drain: 1/2"
  • Vent/Air Size: 2" (default) or 3"
  • Vent Material: PVC, CPVC, PolyPropylene (recommended), St. Steel
  • Power Supply: 120V, 60Hz
  • Dimensions (Depth x Width x Height): 17.3" x 17.3" x 27.6"
  • Weight (lbs): 121 lb
  • Mounting Type: Wall-mounted (Wall-hung).

Documents

Write a Review
Helpful? Yes 1 No
Verified Purchase
Good product
Need to stock more as you are always short on filling orders on these
Pipe Size: 1-1/2"
By Darren (from Barrington, NH) on 07/27/2020
Helpful? Yes No
Verified Purchase
Excellent Quality
These are fine. Order them if needed.
Pipe Size: 1-1/4"
By GUY on 11/26/2024

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