Use un-electrified surface PTC heater, super safe, fast temperature rise, automatic temperature controlStrong and fast heating, stable and low power consumption, normally start in -18ºC environmentNormal wind or hot air stream can be chose separatelyPTC heater with over-heated protector, effectively protect and save energyDelay turnoff protecting device automatically work when turning off hot air stream, efficiently extend product lifeAPPLICATIONSbakeriesbreweriescafeteriasrestaurantssupermarketswarehouseshotels/motels