Gas Wall and Ceiling Unit Heater Gas Type NG Combustion Type Field Convertible Fan Type Blower BtuH Input 150 000 BtuH Output 124 500 1 771 cfm Air Flow 9.4 A Full Load Amps Gas Connection 1/2 in Flue Dia 5 in O.C. Mounting 18 5/8 in Height 33 3/4 in Width 25 1/4 in Depth 49 3/8 in Indoor Air Discharge Height 24 1/2 in Indoor Air Discharge Width 18 3/4 in Heater Voltage 115 V AC 60 Hz Air Temp Rise 65 Degrees F Installation Height 8 to 15 ft Ignition System Direct Spark