Outside doors of shops and public buildings are often left open forcommercial reasons. An open doorarouses curiosity and makes the building more accessible, which contributes to the customer-friendly approach. But when the door is open, incoming colderair will disturb the indoorclimate. Forcustomers as well as staff, draughts feel very unpleasant. Besides, precious warm aircan freely escape to the outside.
The comfort aircurtain, DoorFlow model, warms the cold air before it enters the building and prevents the escape of warm air through the open door. Installing the DoorFlow above the door means increased energy efficiency and the prevention of draught problems. The DoorFlow proves that an open doorand a comfortable indoorclimate can coexist perfectly well.