... 3. Cooling air curtains and hot air curtains 4. With remote control Electric Air Curtain, Cooling Heating Air Curtain Air curtains is usually ... . In the North area, using a heating-cooling air curtain in winter, besides the functions above, it ... /15126019302350102013601700≤58≤60≤61≤53≤55≤57900x255x2251200x255x2251500x255x225900x230x2101200x230x2101500x230x210 Electric Air Curtain, Cooling Heating ...