Description
The NFC-250/200H is the high-output end of Navien’s combi range. Instead of the dual heat exchangers used in the NCB models, it is built around a stainless steel fire-tube heat exchanger, a heavier-duty design typically chosen for large homes and demanding systems. One cabinet handles both space heating and on-demand domestic hot water.
The heating side modulates from 13,300 to 199,900 BTU per hour and the hot water side from 13,000 to 210,000 BTU per hour, with hot water output rated at 8.4 gallons per minute at a 45°F rise. It is 95% AFUE, has powered connections for three zone valves or three zone pumps, vents in 2-inch pipe up to 65 feet or 3-inch up to 150 feet, and is approved for installation at altitudes up to 10,100 feet.
This is a gas appliance. It has to be installed by a licensed plumbing or heating professional, following Navien’s installation manual and your local codes for gas supply, venting and condensate drainage. Please confirm sizing and fuel type with your installer before you order.
Specifications
- Model: NFC-250/200H
- Space heating input: 13,300-199,900 BTU/h
- Hot water input: 13,000-210,000 BTU/h
- AFUE: 95%
- Hot water flow: 8.4 GPM at 45°F rise; 4.9 GPM at 77°F rise
- Heat exchanger: Stainless steel fire tube
- Zone control: Powered connections for 3 zone valves or 3 zone pumps
- Venting: 2 in. up to 65 ft, or 3 in. up to 150 ft
- Connections: 1 in. NPT heating supply/return; 3/4 in. NPT hot water
- High altitude: Approved up to 10,100 ft
- Dimensions: 17.3 x 17.3 x 33.5 in (W x D x H)
- Weight: 141 lbs (dry)
- Installation: Indoor, wall-hung
- Certification: ENERGY STAR
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