Air curtains are widely used in the UK and in many other countries throughout the world, and they have many different uses. You may not realise exactly what they are, but it is likely you will have encountered an air curtain at some point in your life.
The reason most people are likely to have encountered air curtains is that their most common use is in shop, cafe or restaurant doorways, or in the entrance of another type of commercial building. Fitted with powerful fans, these door air curtains blow heated area down from above an exterior entrance all the way to the floor.
Increasing the comfort of customers entering commercial premises is the main purpose of these air curtain heaters, but they also help to maintain interior temperatures in buildings in which doors have to be kept open for extended periods of time.
The use of air curtains in shop doorways is only the tip of the iceberg, as there are countless other applications for these useful systems. Air curtains can be used in places such as cargo doors, aeroplane hangers and shipping receiving doors, to name but a few examples.
Due to their ability to create invisible barriers across entrances, air curtains are also able to prevent outside air infiltrating into air conditioned spaces. The owner of the building can therefore use an air curtain to cut energy bills, as it will help to reduce the workload of heating or air conditioning systems, as well as preventing heat or cold is prevented from entering or escaping. In a lot of cases, an air curtain can pay for itself in as short a time as two years.
As well as helping to maintain two or more spaces at different temperatures, air curtains are able to prevent flying insects from entering. The way they do this is through forceful turbulence, which is why the fans used on air curtains have to be very powerful indeed.
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