Reznor UDX NG 200K BTU Input, 166K BTU Output, Pwr Vnt, Unit Heater, 83% AFUE with 5 inch" Vent, 1/2"Gas Connection, 120 Volts, MOCP-15A, Dims (WxDxH) 38.187"Wx40"Dx20.125"H, 193-lbs,