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Navien Condensing Gas Combination Boiler (NCB)

model img ENLARGE

NCB series

Max Input : 150,000 - 199,900 BTU/H
Indoor Only
Residential Only

  • 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
Navien
  • 2"PVC, CPVS, Polypropylene venting up to 60'

    Low exhaust gas temperature allows PVC, CPVC, and Polypropylene vent systems, significantly reducing installation costs.
    2" venting option allows for a flue to be pulled through the existing vent. No additional holes need to be drilled for venting.
    3" vents can be used to 150' with standard 2" X 3" adapters.

  • Better Adaptability to Gas Systems

    The Negative Pressure Gas Valve and Fan with Dual Venturi operation allows for better adaptability to low gas pressure applications. This industry leading technology makes it possible for the NPE to be installed with 1/2" Gas Lines up to24'.
    Easy residential tank replacements.

  • Field Convertible

    With the Negative pressure gas Valve and the Dual Venturi system, the NPE allows for easy field convertibility from NG to LP.

  • Ease of Installation

    With our mounting and bracket system we make it easy for only one person to complete the whole installation

  • Modular Design for Durability & Reliability

    Improved durability and reliability with the use of high quality engineering plastic(PPS) and reliable parts.
    Simple modular design for water path minimizes water pressure drop.
    The improved water way design allows for easier maintenance and service to be performed in the field.

  • Where Technology Meets Ecology, Combination Water Heater

    Navien's Condensing Combi Gas Boiler/Water Heaters are the ideal solution for customers who need both domestic hot water and a space heating application. Unlike conventional boilers, Navien's Combi Gas Boiler/Water Haters heat water only when needed, making it environmentally sound as well as cost efficient.

  • Hydronic Heating Benefits
    • Clean : Little chance to cause 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.
  • Extended Life, Stainless Steel Heat Exchanger

    Stainless steel for the Combi’s integrated primary and secondary heat exchangers prevents corrosion and ensures a longer lifespan over copper heat exchangers. Stainless steel components also maintain consistency, even during long periods of use, and aid in efficiency by caputuring as much condensation as possible.

  • Eco-friendly, Premixed Burner

    High grade stainless steel burner uses pre-mixed air and gas ratio providing a 10% to 100% firing rate. The Eco-Pre mixed Burner generates at least 20% less CO2 and about 75% less harmful air pollutants such as NOX than other conventional water heaters.

  • Weather Compensation Heating, K-Factor Heating

    An outdoor sensor can be connected to Navien’s Condensing Combi Water Heater. With this device the unit can automatically regulate the heating temperature according to changes in the temperature outdoors, allowing for precise indoor heat regardless of the weather

  • Automatic Water Fill Valve

    Automatic Water Fill Valve

    Automatic Water filling System

    Navien's Condensing Combi Water Heater automatically fills sater into space heating pipes
    when the unit senses a water shortage.

  • Powerful Anti-Freeze Feature

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

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    Front Panel Command Center

    • Self-diagnostics
    • Displays temperature and water flow rate
    • Displays status of cascade operation
    • Convertible display from °F to °C
    • User Friendly Interface
    • Easy setup