What method of heating to choose between the heat gun and the heat curtain

When the coldest time of the year is approaching, it's time to think about how and how to maintain a comfortable temperature in the rooms. This issue is particularly acute for shopping centers, large-scale industrial facilities. What is better to choose to heat such an impressive area: a heat gun or a heat curtain? To make the right choice, you need to know the main differences between these types of technology.

The main difference between devices

The heat gun is a mobile air heater, and the curtain is stationary. The characteristics of their work are similar, both are intended for heating large spaces, instead of additional, and sometimes being the only source of heat.However, they have very tangible differences. So, for example, heat curtains mainly work from the electrical network, while the guns mostly operate on combustible fuel.

Thermal curtain

Heat barriers are best used in places intended for the passage of a large flow of people: shopping centers, airports, train stations, subways, hotels. They create a barrier that prevents the penetration of cold air, keeping the heat in the room. But heating for them is a second matter, the main principle is to prevent the entry of cold air masses.

Heat trap being fast heat source, have great power. They have many-sided functions: they ventilate and dry the air, giving the possibility of heating not only large areas, but also pointwise. The range of their use is quite wide: industrial purposes, when carrying out repair, finishing works, for heating and maintaining the level of temperature, ventilation, etc.

Heat gun

Structurally, the devices are also different. Heat guns consist of a cylindrical metal body, a heating element, a powerful fan, with which the heated air is pushed out in batches.The veil is almost always rectangular in shape, consisting of a fan that directs a stream of air along the width of the opening, and a heating element. It requires a constant electrical connection.

Choosing between the heat gun and the heat curtain, you should know the basic characteristics of each type of instrument.

What to look for when choosing a heat gun

First of all, you need to figure out the power that is appropriate for a particular object, given the volume of the heated room. There are several basic parameters for the selection: application goals, mobility and type of energy carrier.

Purpose of use

Home appliances - a small load of 2 to 5 kW, used in small areas: shops, offices, garages, frequent houses. Industrial stand out for their power - up to 200 kilowatts and more, their functional purpose is varied: large-scale construction projects, industrial facilities, large shopping centers, airports.

Industrial Heat Curtain

Mobility

Mobile heat cannons are used when there is a need to heat certain places, specific segments. They are practical sizes for transportation.Most are cylindrical. Fixed the devices carry out heating permanently. Difference from mobile guns in productivity and impressive size. Most often rectangular.

Type of energy carrier

Electric devices are most convenient and safe for use in places where people can stay for a long time. It is easy to make an idea of ​​their work: air flows through the heating element and is distributed by a fan with a hot stream. Heating elements are presented by spirals, heating elements, ceramic plates. In order to prevent corrosion and overheating, damage during transportation, the body is made of stainless steel. High-quality devices have several modes of operation, equipped with a bimetallic thermostat, a heating element that does not burn oxygen, as well as an emergency shutdown system. The main disadvantage is the high cost of electricity.

Fuel oil can work on waste oils, kerosene and diesel, have a load from 10 kW to 220 kW.

A typical area of ​​their application is construction and work sites, non-residential premises,as a feature of the fuel heat trap - the release of combustion products.

At the same time, they are the most productive and highly efficient, as well as low-cost (in comparison with electric ones). Endowed with many functions, for example, the presence of a rheostat system. The principle of operation is very simple: we enter the necessary parameters, turn on the device, when the set value is reached, it is automatically turned off and on if the air temperature drops below the desired threshold.

Heat gun on diesel B 150CED

Have gas guns the main food is natural gas, they also work on butane or propane, the prevailing output is from 1.5 to 580 kW. There are also combined devices that can switch from one type of gas to another. The devices are quite popular due to high efficiency, economy and safety. Equipped with a combustion control system and protective relaypreventing overheating. In addition, they have almost 100% efficiency. Among the shortcomings: can be used only in well ventilated areas.

Infrared heat guns They are fundamentally different from the previous ones: the design does not provide for the use of a fan, only infrared rays, which allows directional heating of certain areas.Power ranges from 1.5 to 45 kilowatts. Originally used for construction and repair work on large open spaces, the appointment has expanded today.

Use in places of the closed type is possible, but only under condition of good ventilation.

Classification of thermal barriers

Air-thermal devices have the power of productivity of 1.5 - 70 kilowatts and are classified according to the following factors.

1. By air mass exit speeds and their performance is a good option are the following values: the flow rate of 8-9 m / s at the exit, on the floor - at least 3 m / s; for an aperture 1 m wide, 2 m high, the optimum performance indicator is 900 m3 / h. It is “pumping” that is the most important criterion for a thermal curtain. It depends on it how “dense” the curtain will be and, accordingly, how well it will retain heat inside the room.
2. Placement method: horizontal - use mainly on openings with a height of not more than 3-3.5 m; vertical - for openings with insufficient space for attaching the device, or an impressive height of gates, doors; flush-mounted - embedded in a false flow, the outside is allocated only a lattice.
   
   

   Concealed thermal curtain

3. Type of heating elements - Heater or spiral.
4. Metric unit itself. For example, there are several types of height values: up to 1.5 m; 1, -3.5 m average; 3,5-7 m large; over 8 m heavy duty.
5. By heating parameters air-heat is emitted - they are shielded using heated air masses, and air-shielded without heat, the so-called cold flow.
6. Design features: electric or water (the principle of operation is based on hot water).
   
   

   Water heat gun

7. Control mode - This is an important factor for large shopping centers. Allocate a remote control or thermostat.

What is better to choose

So how to make a choice? To choose a good and efficient device, you need to proceed from the acquisition goals: if you need heating of non-residential premises, then it is better to use a heat gun, and for places with high traffic or crowds it is more convenient to limit the flow of cold air outside the curtain.

The main purpose of the heat gun is to heat the room as quickly as possible, while the curtain, in the first place, allows to keep the heat inside. Ideally, these two types of heating can be successfully combined.The only disadvantage of this tandem is high noise performance during operation. Therefore, in office buildings where silence is important, heat curtains are used in combination with other types of heating, for example, convectors.

When choosing, it is also necessary to consider power, size, suitable type of energy carrier and, of course, such an important factor as cost.