Commercial Boilers
-50%
Navien NFB-C Series 399K BTU – High Efficiency – Condensing Heating Boiler
- 399,000 BTU/h input with 97.5% AFUE condensing performance
- Stainless steel fire tube heat exchanger, 9.6 gal water capacity
- Direct-vent sealed combustion with sidewall or vertical venting
- Natural gas with field-convertible propane operation
- Cascade-ready for multi-boiler light commercial plants
- ASME H stamped, CSA 4.9 certified and ENERGY STAR qualified
- Wall-mount cabinet: 25-1/10 in. W x 32-4/5 in. H x 22-3/10 in. D
- 120V single-phase power with electronic ignition