MODINE Unit Heater, PDP Series, Model: PDP400, 320000 Btu/hr, 115 V, 5440 cfm, 3/4 hp, 80 % AFUE Rating, 1 ph, 60 Hz, NPT Connection, 1/2 in Connection, Natural Gas Fuel, PSC Motor, 1125 rpm Rotational Speed, Direct Spark Ignition, 19 ft Mounting Height, 69 ft Heat Throw, 54 deg F, 40-1/4 in H x 40 in W x 38-3/16 in D