Gas Wall and Ceiling Unit Heater Gas Type NG/LP Combustion Type Field Convertible Fan Type Propeller BtuH Input 75 000 BtuH Output 60 750 920 cfm Air Flow 4.1 A Full Load Amps Gas Connection 1/2 in Flue Dia 4 in O.C. Mounting Adjustable Height 15 7/8 in Width 30 in Depth 26 3/16 in Indoor Air Discharge Height 15 7/8 in Indoor Air Discharge Width 30 in Heater Voltage 115 V AC 60 Hz Air Temp Rise 60 Degrees F Installation Height 8 ft Ignition System Direct Spark