Reznor UEZ NG 85K BTU Input, 79.05K BTU Output, Sep Comb, Unit Heater, 93% AFUE with 2 inch" Vent, 1/2"Gas Connection, 120 Volts, MOCP-15A, Dims (WxDxH) 30.25"Wx24.25"Dx21"H, 103-lbs, 0.5 Approximate Condensate Per Hour (Gallons)