Navien releases NFC series combi-boilers
Navien now offers the NFC series stainless steel fire tube combi-boilers. The product is available in two sizes, NFC-175 (175,000 Btu per hour) and NFC-200 (199,900 Btu per hour), each offering 95 percent AFUE, 11:1 turndown ratio, PVC venting up to 150 ft., high-altitude approval up to 10,100 ft. and residential and commercial warranties. The company also unveiled the new NFB-C commercial fire tube boiler. Shown in two sizes, NFB-C-301 (299,900 Btu per hour) and NFB-C-399 (399,900 Btu per hour), the NFB-C uses the same stainless-steel fire tube technology from the NFB series released in 2018. The commercial fire tube boiler features a 15:1 turndown ratio, 91.7 percent thermal efficiency, BACnet or LonWorks to BMS communication capability and top and bottom water piping connections.