Heat up the jobsite with the Mr. Heater Forced Air Propane Heater. The heater produces up to 38,000 BTUs per hour, and it heats areas up to 950 square feet. The QBT technology offers quiet operation, while the high temperature limit switch helps prevent overheating. Mr. Heater Forced Air Propane Heater Black - Patio Accessories/Heating at Academy Sports