Now in many shops, entertainment complexes and enterprises - wherever there is a constant opening of doors due to a large flow of people, thermal curtains are used. They allow you to protect the room from the ingress of cool air through opening doors, working windows.
People who regularly visit hypermarkets and shopping centers have probably experienced the effect of this device. The hot air hitting the face when going outside is the thermal curtain mounted above the door or on the side. Sometimes several such devices are installed at once.
Heat curtain: specifications
Standard machine has two to three operating modes. The power that the air curtain needs for normal operation is 1500-3000 W. It all depends on the specific model. There are more and less powerful instances. The standard mounting height is 2-2.5 meters.
Heat curtain, the technical characteristics of which are verymodest, weighing about four kilograms. More productive and powerful devices are much heavier.
The voltage required to operate the air curtain is 220 V.
How the device works
The principle of operation of thermal curtains is quite simple. A special fan is installed in the inner part, which produces a powerful air flow. This creates an invisible, but rather dense barrier. It does not allow warm air to leave the room, and cool air to penetrate inside.
Air curtains are traditionally mounted above the door frame, with the airflow going down. Efficiently working curtain allows you not to worry about the constant closing of the door in winter. It is also easy to do without the considerable costs of maintaining a comfortable indoor temperature. Curtains are not superfluous in the summer. They can work with the heating off and create a protective barrier against midges, dust and keep the conditioned air inside.
How to choose a thermal curtain
In order for the device to give the expected result, it is necessary to choose its parameters correctly. Buying an air conditioner is much cheaper and easier than buying a thermal curtain. When choosing it, it is important to pay attention to the length, which can vary up to two meters. For standard openings, thermal curtains are used, the technical characteristics of which are as follows: length - 800:1000 mm, power - 1500-2000 W.
For door frames over two meters, you will have to purchase several devices. Thanks to itsdesign, they are easily mounted close to each other. No less important role in the selection of the air curtain is played by its air capacity and the shape of the turbine.
Judging by the reviews of thermal curtains, potential flow and length are the most important parameters. Even the power of the device plays a less significant role. The speed of the air flow, as well as the maximum possible mounting height, depends on the performance and pumping force.
Turbine shape and control panel
For economic purposes, air curtains with low productivity are often used, but this approach justifies itself only if there is a vestibule. In this case, double doors provide an additional barrier to cool air entering.
If the presence of a vestibule is not provided, there is a danger that a thermal curtain with a small capacity will not cope with the functions assigned to it. In other words, the installation of such a device will be practically useless.
The type of turbine determines how uniform the flow is formed across the entire width of the curtain.
It is also worth paying attention to what options for controlling the air curtain are provided by the manufacturer. The remote control can be built-in, remote, remote, wired. Typically, a device intended for control has a pair of switches. One of them is connected directly to the fan, the other is connected to the heating elements.
Air curtains mounted above standard door frames are most often equipped withbuilt-in remotes, as in this case they are the most convenient.
The vertical electric air curtain, the technical characteristics of which are discussed in this article, is a convenient and inexpensive device that allows you to maintain a comfortable indoor temperature even in the coldest time.
