Portable Gas Torpedo Heater, Fuel Type Propane, Heating Capacity Output 42,000 BtuH, Heating Area 1,000 sq ft, Minimum Cylinder Size 20 lb, Ignition Type Matchless Piezo, Ignition Power Source Manual, Thermostat Included No, Overall Height 13 in, Overall Width 7 1/2 in, Overall Depth 18 in, Automatic Safety Shut-Off Included Yes, Built-In Air Pressure Gauge Included No, Digital Temperature Readout Included No, Flame-Out Sensor Included Yes, LED Diagnostics Included No