Duraflame Electric Ceramic Desktop Heater. This portable electric ceramic desktop heater features powder coated steel grill and 3 comfort settings - low heat, high heat and fan only. With an output of 4,600 BTUs this unit is capable of providing supplemental zone heating up to 400 square feet. The tip over switch is an added safety feature which will automatically turn off the heater should it get knocked over. The heater comes fully assembled and is ready to heat right out of the box. Black.