Navien rolling out its new boiler series

Korean boiler company Navien has started shipping the NHB (Navien Heating Boiler) Condensing Gas Boiler Series to North America. Designed for residential and light commercial use, the NHB is available in four sizes: NHB-55, NHB-80, NHB 110 and NHB-150, with turn-down-ratios respectively of 7:1, 10:1, 11:1, and 15:1.