Portable Gas Torpedo Heater, Fuel Type Propane, Heating Capacity Output 125,000 BtuH, Heating Area 3,100 sq ft, Minimum Cylinder Size 20 lb, Ignition Type Continuous Spark, Ignition Power Source Electric, Thermostat Included No, Overall Height 16 1/8 in, Overall Width 11 13/16 in, Overall Depth 25 9/16 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