Reznor UDX NG 225K BTU Input, 186.75K BTU Output, Pwr Vnt, Unit Heater, 83% AFUE with 5 inch" Vent, 3/4"Gas Connection, 120 Volts, MOCP-15A, Dims (WxDxH) 38.187"Wx40"Dx26.125"H, 211-lbs,