Warm air above the front door. Thermal curtain on the door: how to choose and install it yourself

The Termomir store offers customers a wide range of air thermal 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 thermal curtains operate from the mains, can be used for both household 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 in much greater 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 as large fans, allowing you to separate refrigeration chambers, zones or warehouses with refrigerated products from heated rooms, to prevent smoke and dust from entering other rooms, for example, in working shops 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. Dimensions are also important, or rather the width of the curtain - 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 located on the side of the doorway and have important characteristic no longer 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 of thermal curtains is 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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30 June 2015 Alexei

The purpose of a thermal curtain is to prevent cold air flows from entering the room and retain heat. With the help of a curtain, the possibility of drafts is eliminated, even when the doors are open.

You should not compare an air curtain with a heat gun; its purpose is to heat the space: a thermal curtain on a door does not heat the air. Installing such protection saves heating costs by preventing heat leakage.

A little about thermal equipment

Let's look at all the pros and cons of thermal equipment:

• Saving heating costs;
• Keeps you cool in the summer season;
• Prevents drafts;
• Protects the room from dust, insects and dirt.

The disadvantages of the system include the high noise effect during operation - from 50 dB. The operating noise of the device can be compared to washing machine. Moreover, all models, regardless of the manufacturer, have a noise effect.

Structure and principle of operation

Air-thermal curtains are designed on the principle of fans that force air into a room, but with more high speed rotation. This fan creates a dense air layer in the doorway, which prevents the mixing of air flows of different temperatures.

Types of air curtains

1. By type of installation;
2. By type of coolant.

According to the type of installation, there are models with horizontal and vertical mounting, as well as hidden ones. Vertical curtains are installed at the top of the doorway along the entire width. Horizontal models are mounted on the side of the doors.

Hidden curtains are installed in doorways or on suspended ceilings. For specialized premises, products are manufactured with additional functions, for example, curtains with protection against water drops in car washes.

The coolant of these structures can be electric heating coils, heating elements and hot water from heating system. Electrical devices are easy to install and maintain. Devices connected to water heating can be installed when building a house or during overhaul. The price of water curtains is significantly higher than their electric counterparts, however, they quickly pay for themselves during operation.

Watch the video, how it works:

The advantages of spiral heaters include instant heating, reduced noise effect and uniform distribution of warm air over the area air gap. Prices for thermal curtains for doors range from 8,000 rubles.

The disadvantage is the burning of oxygen in the room. Heating elements do not have contact with air, due to the placement of the heating element in thermal insulation material. Ceramic heating elements are considered the most preferred and economical (their price starts from 11,100 rubles).

Model overview

Ballu BHC-18.500TR

This powerful thermal curtain for entrance doorways is used for installation in terminals, garages, warehouses, depots, etc. The price of the system is 31,100 rubles.

Vectra RM-1209G-3D/Y-6

This system is designed for installation on a door standard size. Ceramic heaters provide a comfortable indoor microclimate and do not burn oxygen. Vectra is equipped with a two-speed fan that creates a dense air layer.

Sliding blinds create additional comfort by allowing air flow to be directed in a specific direction. Using the infrared remote control, you can easily coordinate the operation of the system.

Tropic K6 (Russia)

These devices are used for installation in low-traffic areas, vestibules. The reliability of the design is ensured by a strong steel body and components from European manufacturers.

The metal case protects the device from overheating over a long period of operation, as well as from various types of mechanical deformation. You can buy a thermal curtain for 6,835 rubles.

• Heating element: heating element;
• Power: 6 kW;
• Capacity: 1,200 - 2,100 m3/hour;
• Maximum height: 2.5 m;
• Mounting: horizontal;
• Control: remote;
• Voltage: 220 V.

The Swedish company Frico produces a variety of climate control products of the highest quality. This design designed to protect standard and small doorways from cold currents, insects, odors and dust. The device is easy to install and controlled by remote control.

Watch a video about Frico brand models:

High-tech steel structure protected from corrosion and mechanical deformation. There is an option to change the direction of air flow, protection from moisture and small particles. Distinctive feature Frico appliances are low energy consumption. Buying a thermal curtain over the door will cost 35,890 rubles.

How to make the right choice

Here are some criteria for choosing thermal equipment:

1. Curtain length/width;
2. Turbine design;
3. Control type;
4. Type of heating element;
5. Additional options.

Correct length air curtain determines the efficiency of the structure: it must cover at least 3/4 of the length of the opening.

At horizontal installation The width of the door opening should be taken into account: the length of the blowing element should exceed the width of the door by 10 cm. If the doorway is very large, it is advisable to install several curtains that will provide a good protective layer. Otherwise, installation of the system will not bring results.

The turbine design determines the speed of air flows generated by this device. For example, a regular 1/2.5 m door requires a curtain with a capacity of 900 m3/hour (5 kW). If the rate of flow formation is insufficient, the efficiency of the device will decrease significantly: loopholes will remain for cold penetration. In this case, a vestibule is installed in the house, which will partially retain cold flows from the street.

Watch the video, equipment selection criteria:

The type of heating element must be selected based on the conditions of the protected room. Coil heaters tend to burn oxygen, so they are not advisable in a home environment. Heating elements are more expensive, but the design provides protection of oxygen from burnout. The heating elements are located inside a metal tube, inner space which is filled with heat-conducting quartz sand. Heating by connecting to the heating network saves energy costs, however, such structures are difficult to install and are installed at industrial facilities.

Does the power of the heating element affect the efficiency of the thermal curtain? No, it doesn't. The performance of the device is determined by the rate of formation of air flows, and not by heating the air. If you have a vestibule, you can choose a device without a heating function or with minimal heating: this will save money. Additional options include a remote control and a timer. This creates additional ease of use.

Bottom line

When choosing the desired device, determine whether the dimensions of the doorway match the selected model. In case of discrepancy, give preference to horizontal devices. It is not recommended to save money when purchasing a protective curtain and purchase the cheapest device with an air pumping rate of 300 m3/hour: such devices are intended for stall windows.

Through open doors and other openings in winter time A lot of cold penetrates into the room. When there is a lot of people passing through, for example, in a store, warehouse or enterprise, serious heat loss is observed. In addition, unfavorable conditions are created for the people inside. A thermal curtain can solve the problem simply and effectively.

Climatic equipment, especially electric type, is very popular because it is easy to install and use, efficient and reliable. If you need electric thermal curtain, in kW power is measured - one of the key selection factors. It indicates the performance of the device and its capabilities.

Features and differences of electric thermal curtains

Electric curtains prevent the penetration of cold air into rooms by supplying continuous heated air flow. Electric heaters and heating elements are responsible for heating; they can be of different power. In addition, devices can be two-phase or three-phase. Air curtains for household use are connected to two phases. They are intended for doorways with a height of no more than 2-2.5 m and a width of 1 m. For large openings, a three-phase industrial equipment.

According to the type of fastening, they can be of the following types:

• vertical;
• horizontal;
• built-in (mounted in dropped ceilings, V window frames, Wall panels and so on).

Most models are equipped with automatic transmission. It regulates their operation and makes them safe to use. Independently maintains the air flow temperature at required level, turns off equipment when overheated, and so on.

Features of choosing electric thermal curtains

When choosing equipment to provide air barrier in the opening there are several things to consider important parameters:

1. Device power. Power determines performance. Eg, thermal curtain 3 kW well suited for home, office or small shop, but for industrial facilities more powerful models should be selected.
2. Opening dimensions. In some cases, installing one curtain will not completely solve the problem, so two or more devices will be required.
3. Climatic conditions. It is necessary to take into account at least the approximate temperature of the outside air and the speed of its movement.
4. Room area. For large room a thermal curtain will be required 9 kW and more, and for small rooms You can also purchase less powerful devices.

If you find it difficult to choose suitable model, contact our specialists for help. When calculating, we will take into account all the necessary parameters and select the optimal device.

Advantageous offer from our company

If you need a thermal curtain 6 kW or other power, in the catalog of our store you can purchase high-quality equipment. We sell products from leading manufacturers. We guarantee high quality and reliability. Affordable prices and delivery.

Preventing heat loss through doorway is relevant in rooms where entrance doors are often opened. For this purpose, a thermal curtain is used, which is modern and functional equipment. Right choice Such devices require taking into account many criteria, but as a result the device will work correctly and for a long time.

Thermal curtain for the front door: purpose and design

A type of climate control equipment is a thermal curtain, which is an oblong metal casing with an internal fan, heating device, nozzle and other elements. A complex of such parts is connected into a whole system inside the housing, which ensures prompt heating of the air, the flow of which enters above the front door, as if cutting off the cold from the outside.

Inside the housing, the air is heated and enters the room

Each component of the system performs a specific function. For example, the heating element in electric models is presented in the form of a heating element, around which air is circulated using a fan, and when heated, it is discharged outside through nozzles. The speed of such an air circulation can be adjusted depending on the temperature required for the room. When moving, the air is cleaned through a filter from dust, dirt and debris. All elements are enclosed in a housing equipped with mounting holes.

The design of the equipment includes elements with simple principle actions

There are water models of thermal curtains. Such devices use a heater as a heating element, and operation requires a connection to a hot water supply. The noise level of the device is quite low compared to electric options, which are in demand and are often installed in stores, public spaces.

The equipment can provide vertical or horizontal air supply. In the first case, the device is mounted above doorway across its entire width.

Horizontal placement of a thermal curtain is in demand and convenient

If horizontal airflow is required, then a thermal curtain is attached to each side of the opening along its entire height. It is possible to install the element on only one side, but this requires a device with high power and high operating speed.

Choosing a thermal curtain for the front door

Modern electric-type models can be used not only in the cold season, but also in hot weather. In the first case, the thermal curtain prevents cold from entering the room from outside, and in the second, the device functions as a fan. Therefore, the purchase of such equipment is cost-effective, and a practical device will not remain unclaimed in any weather.

Thermal curtain does not take up much space and is easy to install

Since electric curtain models are in demand, it is worth considering the features of choice using the example of just such devices. You need to focus on the characteristics. One of important indicators is power or productivity, indicating how much air the device can heat over a certain period.

Determining the optimal performance required for a particular opening is influenced by the installation height of the curtain. For example, for a standard opening 1 m wide and 2 m high, a device with a capacity of about 900 cubic meters per hour will be required. At the top, the air flow speed will be equal to 8–9 m/s, at the bottom 2–2.5 m/s, which ensures complete coverage of the entire opening by the air curtain.

Public spaces require efficient and high-quality thermal curtains The type of heating element matters if long-lasting equipment is required. The air can be heated by a heating element or a spiral. The first part is a graphite rod in a steel tube. The design is characterized by complete safety, long service life and fast heating. The spiral is made of thick nichrome wire

, and its functioning requires a lot of energy. The element is short-lived, but heats up quickly. Curtains with any heating element

practical, easy to use and effective

The control system can include only three buttons: general switching on, fan adjustment and activation of the heating component. Models with these basic controls are inexpensive and easy to operate. Functional devices are those that have more than three buttons. Such equipment has a timer, adjustment of the angle and speed of the air flow, control installed thermostat

. The cost of such devices is higher than those with basic buttons and without a thermostat.

Modern thermal curtain can be easily adjusted using buttons

• In addition to the above criteria, when choosing a thermal curtain, the following features are also taken into account: price. Inexpensive and simple models
• suitable for periodic use, and powerful options are optimal where good additional heating of the room is required and with frequently opening entrance doors;
• length. This parameter is selected depending on the width or height of the opening. It is permissible to mount several devices in one row to provide a dense curtain of warm air;

These criteria are basic and allow you to determine the device with the necessary characteristics, which will be effective in operation. Having decided on them, they select a suitable model of climate control equipment.

Video: principles of choosing a thermal curtain

How to install a thermal curtain

Installation of electrical-type thermal equipment does not involve complex technology, since all the necessary elements and holes are provided in the housing. Water systems require connection to a hot water supply and are therefore not in demand, and their installation is carried out by professional craftsmen.

Water heat curtain models require connection to a water supply system and precise placement of pipes

For installation you will need anchor bolts, brackets, drill, building level and tape measure. You must first provide a power supply line for the equipment, the presence of safety and protective elements, that is, an RCD and an automatic circuit breaker.

After this, mark the location of the device with a pencil.

The main stages of the work are expressed as follows:

Video: overview of the thermal curtain design

Correct use of equipment Climate control equipment is quite unpretentious in operation, but manufacturers recommend observing certain rules

• use of devices, which is especially important for electric models. Basic tips:
• It is prohibited to operate the heat curtain in premises with an explosive, biologically active or dusty environment or an environment that causes corrosion of materials. The thermal curtain cannot be used in rooms with a relative humidity of more than 80%. Prolonged operation of the air curtain in the absence of personnel is prohibited. Operation of the device without grounding is not allowed. Do not turn on the device with the cover removed;
• devices are intended for operation in areas with temperate and cold climates, in rooms with an ambient temperature from –10 °C to +40 °C and a relative air humidity of no more than 80% (at a temperature of +25 °C in conditions that exclude exposure to drops and splashes, as well as precipitation);
• It is strictly forbidden to repair coolant leaks on a fan heater whose water line is under pressure. The device must only be connected through a shut-off valve.