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NCB-H & NFC-H Series
CONDENSING COMBI-BOILERS
Navien combi-boilers the highest level in whole house comfort for heating & DHW
- Smart controls with LCD display, quick dial wheel and setup wizard
- Advanced stainless steel dual heat exchangers
- 15:1 DHW and up to 11:1 heating TDR
- Field convertible gas system (NG/LP)
up to 10,100 ft. - Capable of cascading up to 15 NPE
water heaters
- Capable of common venting up to 7 NPE water heaters
- Built-in 3 zone pumps and 3 zone valves powered connections
- 2” PVC, CPVC, PP and SS venting material approved up to 65'
- 3” PVC, CPVC, PP and SS venting material approved up to 150'
- Built-in DHW control valves for added comfort
Professionals can now recommend a single solution for both DHW and whole house space heating comfort.
Navien combi-boilers are the first true all-in-one condensing tankless water heater and boiler system that has the capacity to heat a large house and provide all the DHW for the whole family. Now you can design, specify or install one unit with two capacities, saving space, energy and water.
The ultimate
high efficiency combi-boilers
do it all... from the smallest apartments to larger homes
- Separate heat exchanger for domestic hot water
creates one of the highest flow rates in the industry - Energy efficient — 95% AFUE
- Energy Star certified
- Backed by one of the industry’s strongest warranty — heat exchangers, 10 years residential (5 year commercial NFC-H)
- Space saving design
- Can be cascaded with Navien NPE water heaters
for increased DHW flow demand - Easy to use control panels
- Elegant, clean appearance
- Ideal for replacements or new construction
- Optional NaviLink™ remote cotrol system
- Optional NaviClean™ magnetic filtration system
Space saving design occupies 80% less space than a traditional floor standing boiler and tank water heater.
Navien combi-boilers... a great choice for small or large homes and businesses
Stainless steel heat exchanger
Navien combi-boilers include durable stainless steel heat exchangers
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-H up to 5.4 GPM @ 67º temperature rise; NCB-H up to 5.4 GPM @ 70º temperature rise)
Optional NaviLink™ Wi-Fi
control systemThe NaviLink™ Wi-Fi control system provides access to NCB-H and NFC-H 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-H 11:1 for heating and DHW; NCB-H 6:1 heating, 11:1 DHW)
Navien
combi-boiler
applications
- Domestic hot water (showers and faucets)
- Finned tube baseboards
- Cast iron baseboards
- Radiant floor heating
- Fan coils
- Radiators
- Air handlers
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.