Navien NHB-H Condensing Gas Boiler (Heat Only), 44,000 BTU Navien
Navien NHB-H Condensing Gas Boiler (Heat Only), 44,000 BTU
Brand: Navien
Part#: NHB-55H
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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 NHB-55H is an Energy Star listed mod-con heat-only boiler with 44,000 BTU Net Output (AHRI) and integrated 3-zone controller (for zone valves or circulators).

Features:
  • 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)
  • Built-in freeze and lightning protection, auto reset, overheat, short-circuit and CO protection and much more
  • Simple and intuitive front panel control for easy set-up and diagnostics

Technical Specifications:
  • Input Max Fire (BTU): 55,000
  • Net AHRI Rating (BTU): 44,000
  • DOE Heating Capacity (BTU): 51,000
  • Efficiency (AFUE): Up to 95%
  • Turndown (Modulation) Ratio: 7:1
  • Fuel Type: Natural Gas (NG) or Propane (LP)
  • Boiler Connections: 1" NPT
  • Gas Connection: 3/4" NPT
  • Gas Supply Pressure: 3.5 - 10.5 WC (natural gas), 8 - 13.5 WC (propane)
  • 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): 12.8" x 17.3" x 23.8"
  • Weight (lbs): 73 lb
  • Mounting Type: Wall-mounted (Wall-hung).

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