CombiENERGY STAR★ Longest combi warranty
NFC-175 Fire-Tube Combi
by Navien · NFC Fire-Tube Combi series
4.7(61)
Efficiency
95%
AFUE
Output
166k
BTU/hr
Turndown
11:1
modulation
Warranty
15
yr exchanger
The NFC-175 Fire-Tube Combi is a combi boiler best suited for homeowners wanting fire-tube durability in a combi. It delivers 95% AFUE efficiency with a 11:1 turndown ratio and 5.0 GPM of domestic hot water, backed by a 15 years heat-exchanger warranty.
Key features
- Stainless fire-tube exchanger
- 15-year exchanger warranty
- Quiet operation
Technical specifications
Boiler typeCombi
FuelNatural Gas
AFUE efficiency95%
Heat input range15,000 – 175,000 BTU/hr
Heat output166,000 BTU/hr
Turndown ratio11:1
Domestic hot water5.0 GPM
VentingDirect vent (PVC/CPVC)
Dimensions (H×W×D)28" H × 17" W × 12" D
Weight96 lbs
ENERGY STARCertified
Warranty coverage
Heat exchanger
15 years
Parts
5 years
Labour (via installer)
1 year
Installed price range
$5,800 – $7,400
Unit only: $3,800 – $4,600
≈ $115/mo · 60 mo @ 6.99% APR
Request a quote
For the NFC-175 Fire-Tube Combi