... , uninsulated type with fan.Convecting type air heater. 2. Some appliances.Blowing type: room heater, bathroom heater, air conditioner heater, drying ... blow, usually the faster is the air blowing speed, the larger is the power;2)When PTC is used in very low ambient temperature ... of the holde;6)The surface temperature on dispersion plate is closed to the curie temperature, without air blowing; but the ...