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Navien Condensing Gas Boiler (NHB)

model img ENLARGE


  • Super condensing efficiency
  • Dual stainless steel heat exchangers
  • SCH40, 2” PVC venting up to 60’
  • ½” Gas pipe up to 24’
  • TDR up to 15:1
  • Integrated controls
  • Ultra Condensing Efficiency

    Ultra Condensing Efficiency

    • Navien's Condensing Technology offers the high efficiency.
    • Money and energy savings over other boilers and traditional water heaters.
  • Two Stainless Steel Heat Exchangers

    Two Stainless Steel Heat Exchangers

    • Provides longer life expectancy as they are highly resistant to corrosion and erosion compared to copper heat exchangers.
    • Reduces minerals deposits.
  • Low NOx Emissions (≤ 20ppm)

    Low NOx Emissions (≤ 20ppm)

    • New metal fiber burner is designed to deliver a consistent air/gas mixture improving combustion efficiency.
    • Results in less acid rain and less green house effect.
    • Complies with SCAQMD 1146.2 strict NOx emissions standard.
  • 2

    2" PVC, CPVC, Polyprophylene Venting Up To 60'

    • 2" venting option allows for a flue to be pulled through the existing vent.
    • 3" vents can be used up to 150' with standard 2" x 3" adapters.
  • Better Adaptability to Gas System

    Utilizes Existing 1/2" Gas Line

    • The Negative Pressure Gas Valve and fan with dual venturi operation allows for better adaptability to low gas pressure situations.
    • Makes it possible for the NHB boiler to be installed using 1/2" gas lines up to 24'.
  • Field Convertible

    Field Convertible

    • NHB boiler models allow for easy convertibility from NG to LP.
  • Low NOx Emissions (≤ 20ppm)

    Hydronic Heating Benefits

    • Clean / Silent / Comfort / Economical
  • Ultra Condensing Efficiency

    Powerful Anti-Freeze Feature

    • The Boiler';s built-in Control System is designed to keep the unit's plumbing frost free in winter conditions.
  • Ultra Condensing Efficiency

    TDR up to 7:1

    • Navien's NHB series has a TDR up to 15:1 that helps eliminate short cycling