Portable Gas Torpedo Heater, Fuel Type Propane, Heating Capacity Output 60,000 BtuH, Heating Area 1,350 sq ft, Minimum Cylinder Size 20 lb, Ignition Type Continuous Spark, Ignition Power Source Electric, Thermostat Included Unit-Mounted, Overall Height 13 1/2 in, Overall Width 8 7/16 in, Overall Depth 19 19/64 in, Automatic Safety Shut-Off Included Yes, Built-In Air Pressure Gauge Included Yes, Digital Temperature Readout Included No, Flame-Out Sensor Included No, LED Diagnostics Included No