Portable Gas Torpedo Heater, Fuel Type Propane, Heating Capacity Output 125,000 BtuH, Heating Area 3,100 sq ft, Minimum Cylinder Size 100 lb, Ignition Type Continuous Spark, Ignition Power Source Electric, Thermostat Included No, Overall Height 16 in, Overall Width 12 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