KD Navien® NHB-55 NHB High Efficiency Sleek Design Condensing Gas Hot Water Boiler

KD Navien® NHB-55 NHB High Efficiency Sleek Design Condensing Gas Hot Water Boiler, Liquid Propane/Natural Gas, 44 MBtu/hr Net IBR, 8000 to 55000 Btu/hr Input, 3/4 in FNPT Connection, Electronic Ignition, 51 MBtu/hr DOE Heating, 95 % AFUE, 1/2 in Flue Outlet, Forced Draft Direct Vent, 2 in Vent, Cold Rolled Carbon Steel Housing Material, Wall-Hung Mounting, No Ultra Low NOx, 17 in W x 12 in D x 24 in H Dimensions, Commercial/Residential, Series: NHB, Domestic/Import: Import