NCB-E & NFC Series

Condensing Combi-Boilers

These compact combi-boilers are strong enough to support space heating and DHW for large homes.

Navien NCB-E and NFC 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-E Series

Space heating up to 120k BTU/H  |  DHW up to 199k BTU/H

 

Navien NFC Series

Space heating up to 199k BTU/H  |  DHW up to 199k BTU/H

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

 

  • Stainless steel heat exchanger

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

  • 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. (NFC up to 5.4 GPM @ 67º temperature rise; NCB-E up to 4.5 GPM @ 77º temperature rise)

  • Optional NaviLink™ Wi-Fi
    control system

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

  • 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.

  • 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.

  • 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 11:1 for heating and DHW; NCB-E 6:1 heating,
    11:1 DHW)

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

  • AFUE 95% Energy Star Most Efficient for 2019
  • 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
  • NaviClean™ magnetic filtration system (Included NFC / Optional NCB-E)

Navien combi-boiler applications

  • Domestic hot water
    (showers and faucets)

  • Finned tube baseboards

  • Cast iron baseboards

  • Radiant floor heating

  • Fan coils

  • Radiators

  • Air handlers

Protect the environment as
you add value

 

Navien fire tube condensing stainless steel heat exchangers recover additional heat from the flue gases contributing to reduced energy consumption and lower CO2 emissions. Resulting lower exhaust temperatures allow for the use of inexpensive venting materials such as PVC Schedule 40 in almost all applications.

The ultimate
in energy efficiency

 

Navien condensing combi-boiler technology provides 95.0% AFUE, recognized by Energy Star as Most Efficient. These extremely efficient and eco-friendly units provide extra energy savings over a traditional floor standing boilers and storage tanks.