Pro-Temp PT-215T-KFA 215, 000 BTU Kerosene Forced Air Heater with Thermostat, Red/Black 215000 btu heat output Heating Area 5375 sq. ft. Operates 8-hour on full 13-gallon tank Built-in thermostat Digital temperature readout and led diagnostics 215,000 BTU Heat Output Heats up to 5,300 square feet Operates 8 hours on full 13-gallon tank Built-In Thermostat Digital temperature readout & led diagnostics