Ductable Tent Heater, Propane, 170,000 BtuH Output, Fuel Rate 7.9 lb./hr., Voltage 120, 60 Hz, 5 Amps AC, Built-In Thermostat Yes, Height 28.3 In., Width 18.3 In., Length 30.8 In., 1200 CFM, Built-In Features Ductable, Direct Fired, Enclosed Flame, Electronic Spark Ignition, Self Diagnostic Service Saver, Vent Mode For Simply Circulating Air, Safety Features Enclosed Flame, Air Proving Switch, Two High Limit Switches, Gas Control Valve, and P.O.L. Valve