Direct Fired Heater 2 000 000 BTU Fuel Type Natural Gas Heating Capacity Output 2 000 000 BtuH Heating Area 100 000 sq ft Ignition Type Direct Spark Ignition Power Source Electric Thermostat Included Remote-Mounted Overall Height 46 in Overall Width 32 in Overall Depth 72 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