New NCB-H & NFC-H Series

Condensing Combi-Boilers

Aim high with Navien... High efficiency, High output, High performance, all in one compact combi


Navien new NFC-H and NCB-H  are the ultimate high efficiency condensing combination boilers with the capacities to supply both heat and domestic hot water for larger homes — enough space heat for a whole house, plus hot water to run up to 3 showers and a dishwasher
all at the same time.


Navien NCB-H Series

Space heating up to 150,000 BTU/H  |  DHW up to 210,000 BTU/H


Navien NFC-H Series

Space heating up to 199,900 BTU/H  |  DHW 210,000 BTU/H

The ultimate
high efficiency combi-boilers
do it all... from the smallest apartments to larger homes

  • AFUE 95% Energy Star certified
  • Backed by the industry’s strongest warranty—10 years on heat exchangers
  • Takes less space than floor standing boiler and tank water heater
  • Can be cascaded with Navien NPE water heater for increased DHW flow demand
  • Easy to use control panel
  • Elegant, clean appearance
  • Ideal for replacements or new construction
  • Optional NaviLink™ WiFi remote control system
  • Optional NaviClean™ magnetic filtration system

Navien combi-boiler applications

  • Domestic hot water
    (showers and faucets)

  • Finned tube baseboards

  • Cast iron baseboards

  • Radiant floor heating

  • Fan coils

  • Radiators

  • Air handlers

Innovations make Navien condensing combi-boilers the best choice for homeowners


  • Ncb-h-nfc-feature-exchanger

    Stainless steel heat exchanger

    Navien’s advanced stainless steel heat exchanger design resists corrosion better than copper for longer life.

  • Nfc-feature-flat-plate

    High flow rates

    Separate stainless steel flat plate heat exchanger for DHW creates one of the highest flow rate for any combi‑boiler in the industry. (NCB-H up to 5.4 GPM @ 70º temperature rise; NFC-H up to 5.4 GPM @ 67º temperature rise)

  • Ncb-h-feature-navilink

    Optional NaviLink™ Wi-Fi
    control system

    The NaviLink™ Wi-Fi control system provides access to NCB-H and NFC-H condensing combi-boilers from anywhere in the world

  • Nfc-feature-venting

    Multiple venting options

    Low exhaust gas temperatures allow use of PVC, CPVC, polypropylene (rigid and flexible) and stainless steel venting reducing installation time and costs. System can use 2" venting for up to 60', or up to 150' with 3" venting.

  • Ncb-h-feature-lownoise

    Low noise levels

    Installations in or near media rooms, recreation rooms or any living areas of the house are possible with the quiet running Navien combi-boilers.

  • 10-1-ratio-nfb-2

    High turndown ratios up to 11:1

    The sophisticated gas flow control system provides a high turndown ratio, reducing energy waste and excessive combi-boiler cycling and enhances temperature control for DHW. (NFC-H 11:1 for heating and DHW; NCB-H 6:1 heating, 11:1 DHW)

Lower energy bills, easier on the planet

Navien condensing stainless steel heat exchangers recover extra heat that would be lost in non-condensing boilers. The result is a reduction in energy consumption, lower CO2 emissions and low exhaust temperatures allowing the use of less expensive venting materials such as Schedule 40 PVC.


The ultimate
in energy efficiency


Navien condensing combi-boilers are Energy Star certified, providing an AFUE of 95.0%. These extremely efficient and eco-friendly units provide extra energy savings over a traditional floor standing boilers and storage tanks.