Portable Gas Torpedo HeatrLP,550 cfm

Portable Gas Torpedo Heater, Fuel Type Propane, Heating Capacity Output 170,000 BtuH, Heating Area 4,000 sq ft, Minimum Cylinder Size 100 lb, Ignition Type Direct Spark, Ignition Power Source Electric, Thermostat Included Unit-Mounted, Overall Height 16 in, Overall Width 9 1/2 in, Overall Depth 24 in, Automatic Safety Shut-Off Included Yes, Built-In Air Pressure Gauge Included Yes, Digital Temperature Readout Included No, Flame-Out Sensor Included Yes, LED Diagnostics Included No