In view of their design features some elements of the room leads to the fact that the heat leaves it freely, giving way to the street cold without a fight. It is no secret that being in such conditions is not only uncomfortable, but also fraught with health consequences. This problem can be solved using the so-called thermal curtain. The principle of its operation is to create a barrier that prevents the leakage of heated air from the room and the penetration of cold air from the street into it.
The equipment that creates such a curtain varies depending on the heat source. The latter can be water or electricity. Experts say that water thermal curtain is more economical option. At the same time, her advantages are not diminished at all, because she:
- Reduces heat loss in the room;
- Creates a barrier for both cold air and dust, insects, exhaust gases;
- Helps blur the boundaries of temperature values inside and outside the room;
- Reduces to almost zero the possibility of drafts, which is important for health;
- Allows you to save money on heating during the cold season;
- Makes it possible to keep the front door open without the usual inconveniences associated with it.
The fan creates a thermal curtain. Thanks to high power, it generates a strong air flow. It is this that acts as an obstacle to the warm air leaving the room. To operate such a device, you must have central heating, since the heat source of such a curtain is precisely hot water.
Installation of such equipment is quite labor-intensive, but this will soon be compensated for by its efficient work and low maintenance costs.
As a rule, installation is carried out above the doorway or to the side of it. In the first case we are talking about a horizontal curtain, and in the second – about a vertical one. If you plan to install a vertical thermal curtain, then all calculations are recommended to be made based on the fact that its height should be ¾ (or more) of the height of the doorway.
The fan is the main working element
A radial fan that creates an air flow barrier is rightfully considered the main structural element device that creates a thermal curtain. The fan turbine, located along the entire length of the device, ensures maximum efficiency and uniformity of air flow.
The engine of the device is usually mounted on the side of the turbine, but there is another option: a centrally located engine is flanked by small turbines on the sides. This solution is relevant in cases where the expected length of a solid turbine exceeds 80 cm. It is quite difficult to manufacture it. A simplified version of the arrangement of turbines and engine is, of course, cheaper, however protective properties such a curtain will be inferior to the traditional version.
Installation diagram
Control
To control the curtain, at least two switches are usually used: one for the fan, the other for the heating elements. Additionally, the device can be equipped with two- or three-stage heating regulators. Once a certain temperature is reached, the device may automatically turn off if it has a thermostat installed.
Control panel various models can be wired or built-in. The latter option most often occurs when installing small curtains (over windows and doors). This is due to the inaccessibility of the control buttons. Remote controls are convenient because they can be installed in the desired location.
In premises such as a warehouse or hangar, it is advisable to use a limit switch. Its advantage is that it only operates the device when the door is open.
What to look for when choosing
The main criteria for choosing a water thermal curtain are:
- device power;
- its length;
- management and regulation capabilities;
- performance indicators;
- type of instalation.
A number of criteria have already been considered, so it is necessary to dwell on the rest in more detail.
Curtain performance
It determines the speed of the air flow generated by the fan and the possible installation height. Example: if you install a curtain over a doorway 1 m wide and 2 m high, then it should “drive” about 700-900 m3 of air per hour. This performance will provide an air speed of 8 m/s near the device itself and 2 m/s near the floor. The degree of performance is directly proportional to the price of the product.
Power
It matters if the curtain is intended to be used as a heat source for heating the room. It is not advisable to purchase a device with high power for places where there are no heating problems.
If you purchased a device with a heating function, then keep in mind that the air coming out of it will not be hot, just a little warm. This is achieved by intensive blowing of the heating elements.
The length of the device can vary between 60-200 cm. The most popular length is 80-100 cm, as they are suitable for standard window and doorways. For industrial facilities other quantities are required. The length of the devices for them is calculated simply: it is equal to the width of the opening or slightly exceeds it.
Thus, the thermal curtain is an effective and modern remedy maintaining heat in the room, regardless of its area.
It is not pleasant that cold air penetrates into a warm room, cooling it, because in this case it turns out that the street is heated. Not only does this create uncomfortable conditions, but it also has a noticeable impact on your health and wallet. This problem can be overcome with the help of a thermal curtain, which is a reliable barrier between indoor and outdoor air.
They differ in the heat source, that is, such equipment can be electric or water. A water thermal curtain is economical to use, since the heating element is hot water. However, this type of device, like the other, has excellent advantages, due to which it is becoming increasingly popular:
- Protecting the building from heat loss.
- Protection from cold air, which, thanks to the curtain, cannot penetrate into the room.
- Creating a barrier that prevents exhaust gases, dust and insects from entering from the street.
- Leveling the temperature gradient.
- Protection from drafts, which has a positive effect on health.
- Additional heating of the room.
- Possibility of keeping the door in open position.
- The ability to create coolness in hot weather.
- Cost-effectiveness due to both less heat loss and the fact that the energy source is not electricity, but water.
Operating principle and installation
The principle of operation is quite simple: a powerful fan creates air flow high speed, which forms an “invisible barrier”, thanks to such a system warm air cannot leave the room, and cold cannot enter it. The heat source of the water curtain is hot water. It turns out that for the water type of device to work, central heating is needed.
Installing such equipment, of course, is difficult, but this cannot be compared with the fact that the operating costs are low and the power is very high. The scope of application of water curtains mostly extends to industrial buildings that have large open openings. The device is indispensable in restaurants, shops and warehouses, that is, those in places where doors open very often due to a large flow of people.
Installation is usually done above the door. Installation above the opening means that the curtain is horizontal, and on the side of the opening it is vertical. It must be remembered that the vertical curtain must be at least ¾ of the height of the opening that needs to be protected. That's the only difference of this type devices from horizontal.
Main element
The main design element is radial fan, which is necessary to create the necessary air flow. Such a turbine must be single and located along the entire length of the device. It helps create an even flow. The engine is mounted on the side of it.
However, manufacturers often decide to place the engine in the center, with small turbines on its sides. The reason for this arrangement of elements is the difficulty of manufacturing a turbine with a length exceeding 800 mm. How effective is this installation method? Of course, such a simplified curtain will cost less, but there will be a “dip” in the central part of the air flow, which significantly reduces the protective properties. Besides, heating elements will be blown unevenly, and this leads to their earlier failure.
How is the water curtain controlled?
The water thermal curtain is accompanied by at least two switches, one of which must turn on the fan, and the other - the heating elements. Heating power regulators that have two or three stages can also be installed. Fans can be two-speed. The air curtain may have a thermostat that turns off the device or heating elements when the set temperature is reached.
There is a built-in and wired control panel, it all depends on the chosen model. However, the built-in type is used on small-sized curtains that are installed for windows and doors. This is explained by the fact that the ability to reach the buttons depends on the distance. Accordingly, for water curtains it is more rational to use remote controls that can be installed in the right place.
Sometimes a limit switch is used, which is convenient because it turns on the device only when the gate is open. It turns out that the switch starts working when the doors or gates are opened. Its use is very convenient in warehouses and hangars.
Curtain selection
The following factors influence the choice of air curtain:
- Device length.
- Power.
- Performance.
- Type of instalation.
- Control method.
We have already discussed the last two factors, now we will talk about the other three.
- Performance. The air flow speed and installation height depend on it. For example, let's take a doorway whose width is about one meter and height is about two meters. In this case, the “pumping” of the curtain should be from 700 to 900 cubic meters at one o'clock. With this performance, the air flow speed will be about 8 meters per second at the outlet of the device, and about 2 meters per second at floor level. Of course, the price of such devices is not small, so devices with lower performance are used to protect small openings. Since water curtains are used more for industrial buildings, you cannot save on this factor, otherwise the efficiency will be minimal.
- Power is also an important factor, given that the equipment can heat the air in the room, although this factor is not at all necessary. For example, let's take a building at 10 square meters, which is not heated, and the ceiling height is about three meters. The power required under such conditions is 1 kW. However, in this case the building must be permanent, that is, the ceiling and walls must have good thermal insulation. You should not choose a device with high power for well-heated places or even a device without a heating function. It is worth mentioning the peculiarity of the heating function: the air coming out of the curtain will never be hot, even if the power is maximum, it will only be warm. There is an explanation for this: the heating elements have a high blowing speed.
- Length. It can range from 600 to 2000 millimeters. Lengths from 800 to 1000 millimeters are very popular; such devices are installed above a standard opening, so they are not suitable for industrial facilities where water curtains are often used. How to correctly calculate the length in this case? It should be the same as the width of the opening or slightly larger. This is important to ensure that the air flow completely covers the opening and prevents cold air from entering the room.
All this information will help you choose the right water curtain, as it plays important role in building comfortable conditions. The installation of such equipment will indicate that caring for people is an integral part of any organization.
The Termomir store offers customers a wide range of thermal air curtains. Heat curtains are sold wholesale and retail on the official website.
One of the most effective options protection from the penetration of cold air into the room is a thermal curtain. Using a wide air flow, the device separates the heated room from the cold air from the street, protects against dust and insects, provides a comfortable microclimate in the entrance area, saves energy resources for heating, and in the summer keeps air-conditioned rooms cool.
Air curtains are installed on entrance groups buildings with a large number of visitors: in shopping and entertainment centers, metro lobbies, cafes and restaurants, large offices, banks, clinics, etc.
Curtains come with heating - electric and water (with hot water), as well as without heating - air curtains.
Electric heat curtains operate from the mains, can be used for both domestic and industrial purposes, usually have several operating modes with power switching and can operate without heating ( summer mode). Air curtains with a power of up to 5 kW operate at a network voltage of 220 V, and from 5 and above - 380 V. Household air curtains are actively used for doors in country houses and dachas.
Water thermal curtains differ from electric ones much more more power, therefore they are actively used for large objects - doorways and gates of large warehouses, shops, workshops, hangars, etc. Such air curtains have a stationary installation, are connected to the main hot water and are characterized by high efficiency and air output.
Air curtains without heating are used where it is necessary to separate the zone of heat and cold without additional heating. These devices are not equipped with heating elements, but work like large fans, allowing you to separate refrigeration chambers, areas or warehouses with refrigerated products, prevent smoke and dust from entering other rooms, for example, in working workshops and workshops, etc.
Thermal air curtains have the main specifications: power, air capacity and installation height. Based on these parameters, the calculation and selection of heat curtains is carried out. The dimensions, or rather the width of the curtain, are also important - it should be sufficient to cover the entire doorway, providing complete protection.
Thermal curtains are most often produced in a horizontal design and are placed above a door or gate on the wall or ceiling. Veils vertical installation are placed on the side of the doorway and have an important characteristic that is not width, but height. Sometimes, with high doorways, several such curtains are used, installed one above the other. There are also universal installation models that are connected from the side or from above at the user’s request. Thermal curtains quite often come with a remote control remote control– keyboard, wired or wireless. This device greatly facilitates the use of the curtain and increases comfort. A large assortment thermal curtains are presented below on the page and in the site menu. If you find it difficult to make a choice, contact our specialists for advice.
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When it's cold street air penetrates inside the heated room, several significant problems are created at once. Firstly, heating costs increase sharply, as they say, heating the street. Secondly, these sensations are far from pleasant, which can also lead to deterioration of health. Such problems can be solved by installing a thermal curtain, it will create a reliable barrier for cold air.
Depending on the heat source used, air-heat curtains are divided into electric and water. The latter are distinguished by their efficiency, using hot water from central heating as a heating element. These devices have become widespread due to several advantages:
- protecting the room from cold air and heat loss;
- protecting people indoors from drafts;
- additional heating of the room in winter;
- maintaining cool conditioned air in summer;
- additional barrier against dust, insects, exhaust gases from the outside;
- low costs of use, unlike electric thermal curtains.
Operating principle and installation of water thermal curtains
The principle of operation of the device is as follows: the fan inside the device creates a high-speed air flow, as a result of which warm air does not leave the room, and outside air does not penetrate it. The heat source of such an air curtain is hot water from the central heating system.
The installation of this unit requires large financial and physical costs, but all this pays off in full later due to low costs and high power. Devices of this type can most often be found in industrial enterprises, but they are also indispensable in other retail or public catering premises with a large flow of visitors.
Installation is carried out directly in the area front door: horizontal curtains - above the door, vertical curtains - on the side of the entrance opening. Please note that the vertical curtain should not be shorter in length than the height of the doorway.
The main element of a water thermal curtain
This element is a radial fan, which creates the necessary high-speed air flow. Such a single turbine should be located along the entire length of the thermal curtain. The fan creates a uniform air flow, and its motor is mounted on the side of the device.
But there are units with an engine in the center, and turbines located on the side of it. The reason for this may be high price manufacturing turbines over 70 cm in length. Of course, such simplified curtain designs cost several times less, but do they bring the required effect? Indeed, in the central part of such a device there is no required high-speed air flow, and this leads to a decrease in the main protective function thermal curtain.
Water curtain control type
For a water heat curtain there must be at least two switches: for the fan and the heating element. Additionally, two- or three-stage heating power regulators, a switch to the second fan speed, and a thermostat for maintaining the set temperature can also be installed.
Control of the device depends on the selected model. There is a mechanical control built into the air curtain body, as well as control using a remote control. However, the first option is used only on small models designed for installation on door and window openings standard sizes. This situation is easily explained: the buttons on the body can only be reached at arm's length, and high-power water curtains installed, for example, in warehouses and workshops, are more convenient to control from the remote control.
It is very convenient to use a limit switch in the design of the curtain. It activates the thermal curtain only when the gate or door is open. This device is also good for its economical use.
Criteria for choosing a thermal curtain
When choosing a water curtain, you need to pay attention to the following parameters:
- length of the device;
- curtain power;
- device performance.
- installation method;
- type of device control.
The performance of the device affects the air flow rate, and accordingly affects the maximum installation height. In order to save money, you should not buy a water curtain with a lower capacity than necessary. Incorrectly selected curtains will not bring the desired effect.
Power is also the main parameter when choosing a thermal curtain, especially if the device’s function includes heating the room by heating the air. On average, to heat a room of 10 m², you need a device with a power of 1 kW. But it should be clarified that the air at the outlet of the thermal curtain will never be hot, since the heating elements have a high blowing speed.
Curtain length different models and manufacturers there are 60-200 cm. For standard doorways, models with a length of 80-100 cm are well suited. In general, the choice of the length of the water curtain depends on the width of the opening: either equal to it or slightly larger. This rule must be observed so that the air flow of the curtain can completely block access to outside air.
Prices and reviews for popular models of water thermal curtains
The main manufacturer of water-heated air curtains is Ballu. The models offered by this company will satisfy various buyers. Existing commercially available devices are intended for home and industrial enterprise, with mechanical and automatic control, horizontal and vertical installation or universal models.
Regarding the prices for the series for standard openings no more than 3 m high, then the manufacturer Ballu offers the Ballu BHC-8W device with a power of 8.7 kW for $140. The productivity of the device varies from 1100-1400 m³/h due to the ability to switch speeds. The universal installation provides for horizontal and vertical installation with pipes exiting from both the left and right sides of the housing. The model includes a wired control panel.
With $340, you can purchase a Ballu BHC-36W device with a power of 34 kW, due to which the maximum installation height can reach 4 meters. The Ballu BHC-36W water-heated air curtain is equipped with a remote control, has three speed modes and a capacity of 2600-5000 m³/h. The device also assumes universal installation and connection to the heating network.
Water thermal curtains from well-known global and domestic brands with delivery and installation within 2 days, with a 7% discount from the official equipment supplier.
Water curtain
A unique development in the field of heat conservation at minimum consumption electricity.
Water curtain The main components, which are the metal casing, the heat exchanger, the fan and the fan motor, are designed and installed mostly where the electric curtain is not suitable for its characteristics.
Due to heating the air by extracting heat from the water, a water thermal curtain has a much greater heat transfer, which makes it possible to install a more powerful fan in this equipment. Thus, a water air curtain can significantly heat the air flow and at the same time cover much larger openings and entrance gate. Thermal curtains from heating are controlled through a 2- or 3-way control valve, which opens or closes with an electric drive.
Water thermal air curtains are equipped with a control board, which sends a signal to open or close the control valve. When the tap is open, water as a coolant enters the heat exchanger, which is blown by a powerful stream of air. In this way, at the exit from the thermal curtain, we have a powerful warm stream of air, which, if calculated correctly, fully performs all the functions of air protection.
It is very important to choose and buy the right water curtain in order to get exactly the result that you expect from this equipment.
When purchasing water thermal curtains, remember that price is not the most important factor. The main thing is to take into account the same important characteristics, which significantly affect the efficiency of the curtain.
We have the right selection water thermal curtain You can buy it absolutely inexpensively and at the same time it will serve you for a long time and with high quality.