Ceramic heaters are usually portable and typically used for heating a room or small office, and are of similar utility to metal-element fan heaters.
PTC ceramic material is semi-conductive and when voltage is applied to it, the power decreases quickly as it reaches a certain temperature according to the particular composition of the ceramic. This means its temperature is self-regulating.
The ceramic elements are in contact with aluminium fins, thereby heating the fins up. A fan blowing across the fins heats the air.
Small ceramic heater consist of ceramic plates and baffles that operate on the principle of convection. When the electricity is turned on, the coil and baffles get heated up. This heat is spread to the surrounding area. Larger models of ceramic heaters have fans, which help blow the hot air around. Unlike other space heaters, a ceramic heater is much less prone to starting an electric fire. This is because the ceramic elements do not get overheated. There is a much lower risk of surrounding articles catching fire. However, just like other space heaters, ceramic heaters also need a certain amount of clearance and free space around them.
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small ceramic heater |
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