NFB-C Models

Navien offers high performance condensing heating boilers that utilize existing 1/3" gas lines.

 

NFB-301C
NFB-301C
Max HTG Input: 301,000 BTU/H
Indoor wall-hung
Residential/Commercial
NFB-399C
NFB-399C
Max HTG Input: 399,000 BTU/H
Indoor wall-hung
Residential/Commercial