Shop for Heating, Venting & Cooling at The Home Depot. This Duraflame utility heater is perfect for adding warmth to your garage or workshop. It has a built-in safety feature: an overheat protection device that instantly shuts off before the unit overheats. The unit can be mounted to the ceiling to not take up precious space in the garage/workshop. It has 4 power settings: low (2500 Watt, 8533 BTUs), medium (3332 Watt, 11365 BTUs), and medium2 (4165 Watt, 14215 BTUs) and high (5000 Watt, 17065 BTUs).