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Navien Condensing Gas Combination Boiler (NCB)

model img ENLARGE


  • Super condensing efficiency
  • Dual stainless steel heat exchangers
  • SCH40, 2” PVC venting up to 60’
  • ½” Gas pipe up to 24’
  • Automatic water filling system
  • integrated controls
  • Ultra Condensing Efficiency

    Ultra Condensing Efficiency

    • Navien’s Condensing Technology offers high efficiency.
    • Money and energy savings over tank type water heaters 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.
    • Result in less acid rain and less green house effect.
    • Comply 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 applications.
    • Makes it possible for the NCB-E combi-boiler to be installed using ½” gas lines up to 24’.
  • Field Convertible

    Field Convertible

    • NCB-E combi-boiler models allow for easy convertibility from NG to LP.
  • Two Stainless Steel Heat Exchangers

    Where Technology Meets Ecology, Combination Boiler

    • The ideal solution for customers who need both domestic hot water and a space heating application.
    • Heats water when needed, making it environmentally sound as well as cost efficient.
  • Low NOx Emissions (≤ 20ppm)

    Hydronic Heating Benefits

    • Clean: little chance to cause dust or lower humidity because there is no air movement.
    • Silent: offers silent heating because no blowers are needed for forced circulation.
    • Comfort: keeps floors warm but indoor air fresh, making people feel warm and comfortable.
    • Coverage: radiant heat makes heating from floor to ceiling possible.
    • Economical: radiant heat in the floors can transmit warmth throughout the house hours after turning
    • off the heater.
  • Ultra Condensing Efficiency

    Automatic Water Filling System

    • Automatically fills water into space heating pipes when the unit senses a water shortage.
  • Ultra Condensing Efficiency

    Powerful Anti-Freeze Feature

    • The Combi-boiler's built-in Control System is designed to keep the unit's plumbing frost free in winter conditions.