Non-Surfce-Electrified PTC heater Series is a kind of large power Non-Surface-Electified PTC heater with wind blowing, PTC element is fixed in alu-minium tube and keeps insulated with the aluminium tube, Alar or tooth-grooveheat diffusing slice is fixed on the aluminium tube, The large-power heater has a series of virtues such as safety,reliability, stable power,small small sound,longlife, excellent machinery, intension and so on,Because of good safe performance,now Non-Surface-Elect- ified PTC heater is mainly used in large-pawer house heater such as cold/warm air-condition,heater,disinfecting cabinet,dryer and so on.