Reznor UDX NG 30K BTU Input, 24.6K BTU Output, Pwr Vnt, Unit Heater, 82% AFUE with 4 inch" Vent, 1/2"Gas Connection, 120 Volts, MOCP-15A, Dims (WxDxH) 27"Wx25.562"Dx13.75"H, 57-lbs,