Theodoor heating air curtain:
* Metal cover, advanced fire resistance, easy installation and simple maintenance. 
* High and low air speed setting meets the need of multiple applications.
* Adopted un-electrified surface PTC heater, safety, fast temperature rising, automatic temperature control, creating comfortable air barrier.
* Strong and fast heat generating, stable performance, low power consumption.
* Cooling(Normal air) or heating air can be chosen separately by remote control.
* PTC heater and Motor is with over-heated protector, effectively protecting and energy saving under normal use.
* Delay turnoff protecting device automatically performing when turning off heating air operating state, efficiently extending product life.