How a diesel heat gun works: characteristics and basic principles of operation. Features of choosing a heat gun The principle of operation of a heat gun

Products of this class are used as permanent or temporary sources of heating - it all depends on the state of the thermal insulation of the room. In practice, this is an ordinary fan heater, only with a high degree of efficiency and unique functionality. Natural gas heat guns are used for high-quality and economical heating of greenhouses and greenhouses where flowers and vegetables are grown: during operation, they do not emit combustion products, unlike guns running on diesel fuel, and are also more economical than their electric counterparts.

The operating principle of this class of units is no different from other heat guns: the combustion chamber housing is cooled by air pumped by a fan. The warm air is then directed to heat the room. Gas heat guns differ structurally from their electric counterparts only in the presence of a burner instead of a heating element (HEN). The gas ignites automatically using a piezoelectric element.

This device can be used both for residential premises and for heating production facilities. For example, a high-performance gas heat gun with a power of 10 kW can heat a room in a new house with an area of 150-300 square meters. m. or a greenhouse up to 70 m 2. If the gun has a power 10 times greater, then it is capable of efficiently heating a building with an area of about 3.3 thousand square meters. m or greenhouse - 740 m 2.

One cylinder of propane gas is enough for approximately 60 hours of operation without stopping, and it must be taken into account that the fan heater turns off automatically when the set temperature in the room is reached, and then turns on if the temperature drops. For battery life connected to the product gas cylinder with liquefied natural gas, which can be easily replaced as used.

A compact heat gun, capable of running on natural gas, consumes only no more than 1 l/h to heat a living space.

Product classification

Gas-fired heat guns are divided into two main classes:

direct heating products air flow;
indirect heating units.

In the first case, when heating the air flow is used open fire, in which propane gas burns, the combustion products enter the heated room, but the efficiency also reaches a maximum when using this design. The dimensions of such a device are quite compact, the cost is very low, but ventilation is required for a constant inflow fresh air. Great fire hazard - not a single inspector will sign an act authorizing the use of this device for residential premises.

The second option is more preferable, because the combustion chamber in the unit closed type , all combustion products are discharged through a special pipe connected to the chimney pipe. It is better to install such products on outdoors, and pump warm air through a special system with a large-diameter hose made of non-flammable material.

Modern gas heat guns, which carry out indirect heating of the air flow, operate on propane, which burns without residue, and the removal of combustion products is no longer necessary. Only their dimensions are larger than direct heating devices, and the price is correspondingly higher.

Application requirements

The operation of a gas-powered product, regardless of its design features, requires constant flow oxygen from the surrounding air for sustainable combustion. When the user chooses a model, these features must be taken into account.

The pricing policy depends on the size, power and brand: the more difficult the working conditions, the larger the volume of heated areas, the more expensive a gas fuel heat gun will cost.

The room where the unit is planned to be located must have excellent ventilation so that there is a constant flow of fresh air from outside. If there is no ventilation, then you need to choose a model with a thermostat that automatically turns the gun off or on, maintaining a sufficient level of oxygen. Equipment thermostat allows you to increase the efficiency of the product: when you reach optimal temperature it turns off the fan heater, turning it on only when the set temperature drops to a certain level. Products of this class are used in production, in warehouses, during the construction of buildings and heating of agricultural facilities, where people are not constantly present.

Gas heat gun with thermostat

Unit selection

All the lineup gas products has a very high efficiency work, the fact is also important environmental cleanliness- burnt gas does not pollute the atmosphere, there are no foreign odors, which is very important for farmers involved in growing flowers and vegetables.

How to choose a gas-powered fan heater from large assortment presented models? To successfully make a choice, you need to learn more about the blue fuel used, the specific features of thermal units and their design.

It should be taken into account that similar heaters operate successfully from highways or from connected to a gas heat gun balloon. The efficiency of such a device becomes almost 100%.
To purchase the right product with effective performance, you need to calculate in advance how much power the unit requires. Are being done room measurements: you need to know its volume. You should also check the quality of the thermal insulation to see if there are any leaks. The higher the performance of a heat gun, the faster it will heat the room to the desired temperature.
Please also pay attention to gas consumption, to know approximately how long the gun will work without the first shutdown.

All gas fan heaters have a similar working diagram We have already discussed in detail how it works a little earlier. It is necessary to note the fact that many people do not need to connect to the network because piezoelectric element can ignite gas without electricity.

TPG-10 kW for 7 thousand rubles is considered by specialists the best option For places where there is no electricity connection nearby:

runs on propane and butane;
productivity - 300 m 3 / h;
temperature up to + 90 C°;
gas consumption max - 0.76 kg/h;
weight - 5.5 kg.

This gas heat gun can be used from a gas main or with a connected cylinder, in places where there is a network connection and without electricity. The Sturm GH91101 10 kW product has similar advantages; at a flow rate of 0.75 kg/h, productivity is up to 330 m 3 /h, and the cost is only 5,590 rubles.

Experts strongly advise users to repair gas heat guns only in special centers where there are specialists in gas equipment, in order to avoid causing irreparable damage during independent maintenance.

Popular models

On modern market There are many models of gas guns presented in Russia: Master, Ballu and many others, but we will consider only the most popular ones.

Compact gun with a power of 10 kW, its operating speed is up to 300 cubic meters/h, and its consumption is more than modest - 0.75 kg/h. The connection is single-phase, the installation weighs only 4 kg, it uses liquefied propane, and costs from 4.7 thousand rubles.

This model has a capacity of 1450m 3 /h. Her power with small dimensions it is impressive - 5300 W, and gas consumption - 3780 g/h. Therefore, its price is much higher - 10 thousand rubles. Used for heating large shopping centers, supermarkets and production premises: repair shops, factories and workshops.

Ballu BHG-20 S

This is a representative of the middle class in the price category, can work for propane and butane, heating speed - 500 cubic meters. m/hour, gas consumption - 1.2 kg/h, power - 18 kW, weight - 4.9 kg, and price from 5 thousand rubles.

All of the above models use a piezoelectric element to ignite the gas and are among the 10 most purchased models. Master is a US brand, but the country of origin today is Italy, and Ballu is a domestic development. For clarity, I advise you to watch a video about functionality Ballu:

Connection and operation

Before turning on the device, you need to read the instructions, where all the nuances of connection and use are described very clearly. Need to pay Special attention on situations when you can't turn on the device:

with increased dust content in the air mass of the room;
if there are vapors of explosive substances;
the exit hole is blocked by something.

Operating rules and safety measures may vary among manufacturers of different models - study the attached documentation before starting work.

Gas heat guns are very economical compact products that differ high speed volume heating and efficiency, which is why they are considered specialists gas equipment ideal option for heating various large areas. I would like to note that Russian heat guns technical specifications They are not inferior to foreign brands, and their design is almost identical, so there is no point in overpaying.

If you need to quickly warm up an unheated garage or any other room, you can use the appropriate equipment. As great example acts as a heat electric gun (220V). You can find out how to choose such a device if you read the article. Such units are a lifesaver when construction or finishing work has been extended for an indefinite period, and the cold is already approaching.

If from time to time you are faced with the need to warm up a frozen car, then you can’t do without a heat gun, because quite often the car refuses to start in the cold. Considering that the range of such devices is truly huge, you must understand how to choose a gun. This task can be quite difficult. But if you follow certain rules and take into account important factors, then you can make a profitable purchase.

The gun can be used not only for the garage and construction needs, but also for, and also, if necessary, drying the room after finishing works. Experts advise deciding on the power of the device, design features and the manufacturer.

How to make a choice based on technical characteristics?

The first thing you should pay attention to is what parameters will be optimal for the gun to operate. The selection must be based on suitable voltage and power. As for the last characteristic, when choosing it, you can use one of two calculation options. The simplest method that will allow you to determine what power to choose is as follows: for every 10 m 2 of room you will need 1 kW of power.

If you have to heat a room 4 x 6 m, then the most simple calculations will show that the power of the gun should be 3 kW. This value can be determined as follows: 4 multiplied by 6, which is equal to 24 m 2. Taking into account the recommendations, we can conclude that the power reserve is approximately 20%. The calculation will look like this: 2.4 multiplied by 1.2, which will give 2.88 kW. The closest value is 3 kW, and it is with this in mind that you need to select a device for heating a garage.

Alternative power calculation option

If you are faced with the question of how to choose an electric heat gun (220V), then you can use another calculation option. The value will ultimately be more accurate. This approach is relevant when choosing a heat gun for your home. The formula takes into account not the area, but the volume of the room, as well as the thermal conductivity coefficient of the walls.

The formula is as follows: P=(V*dT*Kt)/860. Here, the volume of the room is denoted by the letter V and is defined as the area, which is multiplied by the height of the ceiling. The difference in temperature between indoors and outdoors is dT. Thermal conductivity coefficient - Kt. If the room has walls with good thermal insulation, then this value will vary from 0.6 to 1. When equipment is selected for a room with average thermal insulation or brick walls in two rows, then the coefficient will be equal to the limit from 1 to 2.

You also have to select a heat gun for rooms whose walls are made of single-row brickwork. Thermal insulation in this case is usually poor, and the thermal conductivity coefficient will reach 3, while its minimum value is 2.

When choosing a heat gun for a dilapidated hangar made of corrugated sheets or boards, you should take into account a coefficient of 3 to 4. The number 860 is the number of kcal in one kilowatt. Before deciding how to choose an electric heat gun (220V), you must understand the essence of the calculation, which can be considered using a specific example.

If we are talking about choosing equipment for a garage and heating a car, then you can take into account the same volume of the room 4 x 6 m. And the ceiling height can be taken equal to 3 m. Inside the building the air temperature should be +15 °C, whereas outside -20 °C. The difference is 35 °C.

When the garage is well insulated, the coefficient will be equal to 1. Calculation formula in this case it looks like this: 72 x 35 x 1 = 2520 kcal/h. In order to convert this value into kilowatts, you should divide it by 860, which will give you 2.93 kW. It is important to take equipment with a power reserve; in the end, the required parameter will be equal to 3.5 kW, which is quite enough.

For reference

When deciding how to choose an electric heat gun (220V), you should pay attention to the fact that there is conditional classification equipment by power. Fan heaters are those units whose power reaches 5 kW; everything above is guns.

How to make a choice based on operating time and noise level: reviews

Experts also advise paying attention to the duration of the gun’s operation. When heating a room, such devices must operate without interruption for quite a long time. An electric heat gun (220V), reviews of which you can read below, can have a value that looks like this: 24/1 or 24/2. In these cases, the work duration is around the clock with a break of one or two hours.

In order to do right choice According to the characteristics, consumers are advised to also pay attention to the noise level during operation, as well as the range of operating temperatures. Having familiarized yourself with the assortment modern devices, you will be able to understand that they are capable of operating at temperatures ranging from +5 to +40 °C.

Selection by room type

One more is enough important criterion The choice of heat gun is the type of room. If you want to purchase a device for your home, it must work on the principle of indirect heating. But before buying a device for a greenhouse or heating a car, it is better to pay attention to simple options, which will eliminate the need to overpay.

When choosing a gun for temporary heating, you should take into account the fact that a portable case is better suited for these purposes. If the heater must be in one place for a long time, then you should choose a stationary device that allows you to fix it in a certain place in the room.

Select by additional parameters

An electric heat gun (220V) is also selected taking into account additional factors, for example, the presence of a temperature controller. Modern technology necessarily has such functionality, but if you want to save money, it is better to select a device with at least a step regulator. It will allow you to manage the efficiency and performance of the device.

It should also contain the function automatic shutdown if overheating occurs. When the housing accidentally falls and the heating element overheats, a fire hazard situation arises in which the thermostat must operate. When choosing an electric heat gun (220V), you must also take into account the material at the base of the body. It is better to choose metal than composite or plastic.

The first option is more durable; in addition, in the event of an accidental power outage, a hot heating element will not be able to damage the metal casing. As for plastic, it can melt if overheated and cause a fire.

If one of your goals is to quickly warm up the room, then it is better to choose a cylindrical type device, because their heating element is a spiral. This option is great for heating a garage, which is especially important if you need to warm up your car in cold weather.

What else is important to consider?

When choosing an electric heat gun (220V) for the garage, you should also take into account the availability service center in your city, because if the equipment breaks down, repairs can be very expensive. But if the gun is selected for a dacha or private home, then it is better to purchase a design rectangular shape, which seems more rational, because there is a mesh inside a heating element, which does not dry out the air so much and is not so dangerous in terms of spontaneous combustion. The most powerful air flow can be achieved if you use equipment with an all-stamped impeller. When choosing a heater for a construction site, for example, for installation stretch ceiling, you should prefer a device with such a fan.

Popular rating participant: “Interskol TPE-2 286.1.0.00”. Reviews

The popularity rating would not be complete without including one of the models from the Interskol company. This device is purchased somewhat less frequently than those described above, so it occupies only third place. When considering equipment for heating rooms, according to consumers, you should definitely pay attention to the electric gun, the brand of which is mentioned in the subtitle above. Its cost is 2119 rubles, and the equipment itself, according to users, can be used for rooms up to 20 m2.

The body has a cylindrical shape and is made of steel. Its surface has an anti-corrosion coating. made of fechral spirals. Air consumption reaches 240 m 3 per hour. The equipment weighs 4.5 kg. Its dimensions are 240x240x310 mm.

This electric heat gun (2 kW, 220V) has many positive features, namely:

protective grille;
stable support;
bimetallic safety thermostat;
ease of control.

During operation, the device can increase the room temperature by 25 °C.

Making a gun with your own hands

You can make a cannon from thin sheet metal, which will go to the body. During operation, you will need a heating element and an electric motor. To fix the spiral, make sure there is an insulating block. It is important to include switches, terminals and wires in the design.

Work methodology

Homemade electric heat guns (220V) do not have the same level of safety as factory models, so you must be nearby when operating them. The spiral is secured inside the housing using insulating blocks. Having prepared the bent metal halves, you can make a body from them, which is fixed into a single whole with self-tapping screws. At the end of the resulting pipe is installed axial fan. It and the heating element must be connected to the network via switches, after which we can assume that the electric gun is ready for operation.

Conclusion

Before you choose one or another model of electric heat gun, you need to evaluate all its characteristics. Among the durable ones, but the most important is the power, which is selected taking into account several factors. Before making a purchase, you should take into account the insulation of the room, as well as its area.

As a rule, with the onset of the cold season, the problem of heating premises for various purposes arises acutely.

And this applies to both private residential buildings and industrial premises. different types. In such cases, expect heat supply from the central heating system. But what to do when central heating Is it not yet working or is it completely absent from the premises?

In such situations, they usually try to use alternative heating sources, which can easily include such types of units as heat guns.

Modern market heating equipment has a fairly wide range of heat guns various types. But diesel engines occupy a special place in this range.

To have an idea about thermal units of this type, in this article we will talk about what diesel heat guns are, what characteristics they have, and also where they can be used.

What are they?

A diesel heat gun is a kind of heating unit, the main purpose of which is to quickly and economical heating such non-residential premises as production workshops, agricultural storage facilities, construction sites, etc.

Distinctive feature Heat guns of this type is that the thermal air flow is formed as a result of the combustion of liquid diesel fuel.

Advantages of use

The use of diesel heat guns for economic purposes carries a number of positive and undeniable points, which are undoubtedly associated with the following advantages of this type of unit:

excellent performance characteristics;
easy maintenance;
depending on the type, the power of diesel heat guns varies from 20 to 230 kW;
fairly economical diesel fuel consumption;
ability to work offline for more than 10 hours;
good functioning of the unit at low temperatures;
Excellent heating of large areas.

Based on the positive aspects of a diesel heat gun, we can safely say that it is an effective device for heating rooms.

Kinds

Diesel heat guns are usually divided into two main options:

direct heating units;
indirect heating units.

Let's consider the principle of operation of each of these types of heat guns.

Direct heating

The operating principle of a diesel heat gun consists of the following sequential actions:

As you can see, the operating principle of a diesel heat gun with direct heating is quite effective and understandable.

But a unit of this type has one significant drawback: along with the air heat flow, diesel fuel combustion products also enter the room.

In this regard, the following requirements are imposed on the use of diesel heat guns:

It is prohibited to use this type of unit in residential buildings;
the room where the heat gun operates must be equipped with a good ventilation system;
Using a unit of this type, it is allowed to perform all work operations, without exception, in open areas.

Indirect heating

The operating principle of a heat gun with indirect heating is almost similar to the previous type.

However, a unit of this type has a significant advantage: waste combustion products are discharged outside the room through a specially equipped chimney. Thus, heat guns with indirect heating can be effectively used in residential premises, provided there is proper supply ventilation.

Converting direct heating to indirect heating

In order to understand this issue, you need to again turn to the design of heat guns of these types.

If in units with direct heating the combustion products come out along with warm air, this means that the combustion chamber is of an open type.

In an indirectly heated heat gun, emissions are removed using a pipe, so the combustion chamber is presented in the form of a closed heat exchanger. Consequently, the process of converting a direct heating heat gun into an indirect one consists of replacing the combustion chamber, as well as equipping the unit with an outlet pipe.

But here a clear question clearly arises about the effectiveness and cost of this method of technical modification of a heat gun, which remains open.

The lineup

Despite the fact that heat guns are rather narrow-profile equipment, nevertheless, these units are represented on the modern market by many manufacturers.

Having analyzed the products of heat gun manufacturers, we have identified the following most popular models:

Thus, we introduced you to all the characteristics of diesel heat guns and indicated the features different types, and also provided a list of the most popular heat guns. We hope that the information presented will greatly help you when choosing a heat gun.

Watch the video in which a specialist talks about the design and types of diesel heat guns:

It will probably be no secret to anyone that heating a room is the most important task for its owner.

On the modern heating equipment market today there is a great variety of devices and devices for heating rooms. Heat guns occupy a very significant and prominent place in this range.

Unlike other types of devices for heating and drying a room, heat guns perform this operation quite quickly and efficiently. It is also worth noting that this type of device appeared relatively recently, but has already gained popularity in various areas of its use.

Therefore, in this article we will describe in detail all the characteristics of heat guns, and also talk about the areas of their application.

What is

A heat gun is essentially a fan heater, which is designed to quickly heat rooms of various sizes.

This device got its name from the fact that it is presented in the form of a metal cylinder, which in appearance resembles an ordinary cannon.

But with all this, you should not associate these two heating devices.

This is due to the fact that a heat gun differs markedly from a fan heater in the following important points:

has a significantly directed air flow;
has a wide power range;
quickly heats large rooms.

Device

As a rule, the structural elements of this device are:

a heating element;
powerful fan.

The heating element can be presented in the following types:

a metal spiral made of refractory metals, for example, nichrome (the disadvantage of this type is that such elements intensively release oxygen in the room);
heating element, which is made of sealed tubes filled with sand;
a ceramic element, which is presented in the form of a plate with many small cells through which air passes (this type of heating element is the safest among all those presented).

It is also worth noting that the design of the heat gun is equipped with additional components, which include:

thermostat that effectively protects the unit from overheating;
thermostat, which is automatic mode will turn on the heat gun when the room temperature drops below the set one.

Principle of operation

The operation of a heat gun is very simple, so the principle of operation of the device is as follows:

Benefits of use

The design and operating principle of the heat gun rightly ensure its popularity in use.

As a unit for quickly heating a room, it has the following advantages:

easy operation;
does not require frequent maintenance;
works silently;
quickly heats a room of any size;
environmental friendliness of use lies in the fact that the heat gun does not emit harmful substances in atmosphere.

One of the disadvantages of a heat gun is the cost of electricity consumption, which, in principle, can be offset by efficient heating premises.

Kinds

The entire range of heat guns is usually divided into classes depending on what type of energy carrier is used to produce warm air flow.

Among them, the following important varieties can be distinguished.

. In addition to industrial purposes, they can also be effectively used for heating living spaces.

It is worth considering an important fact: depending on the power, thermal electric guns can be connected to two-phase and three-phase systems electricity. Therefore, when choosing a device of this type, it is necessary to take into account the electrical wiring with which the room is equipped.

One of the most famous companies The manufacturer of heat guns is Ballu. Unit reviews:

. It is a very effective heating device, coefficient useful action which reaches almost 100%.

To obtain heat flow it is used natural gas, which burns out completely in the heat gun. It is recommended to use this type of units only in non-residential premises.

The name of this type of device indicates that it uses diesel fuel.

As a rule, a unit of this type is used for production purposes.

Water heat gun. A distinctive feature of units of this type is that the heating element is designed in the form of a heat exchanger through which hot water flows.

Infrared heat gun.

The design of this device does not include a fan.

The air is heated based on infrared radiation.

It is also worth knowing that a heat gun of this type can only heat a certain area of the room.

Explosion-proof heat gun. This type of units, as a rule, is used to heat rooms with a high concentration of flammable mixtures, in other words, these can be transport hangars, as well as warehouses for fuels and lubricants.

Where is it used?

Heat guns are widely used in various economic sectors.

Heat guns can be used in the following industries:

In this article we tried to tell you as much as possible about heat guns and their applications. We hope that the information presented will be useful to you.

For a summer residence, in addition to heat guns, it is possible to use an infrared heater:

Watch the video, which describes in detail the design of a heat gun and its varieties:

If you need to quickly heat a cold room to ensure comfortable working conditions, a variety of devices and instruments are used. The most effective and practical device for such purposes has become a heat gun, which is ideal for cases where there is no centralized heating. It has quite high power.

How does a heat gun work?

The design of this product does not cause difficulties in understanding its operating principle. The main elements are a metal case, an electric fan and a heating element. On metal case There are holes for air in and out. The body shape is usually cylindrical, but sometimes the gun is made with a rectangular body. Thanks to its cylindrical shape, this device got its name due to its resemblance to a cannon. Many models are heavy and massive, so they are equipped with a special frame equipped with wheels to allow movement to different places.

The heating element is used in a tubular form, or in the form of a spiral or a heat exchanger with a combustion chamber, depending on the type of energy carrier. A powerful electric fan drives cold air masses through the inlets. Next, the air passes through the heating element. It comes out of the body at high speed hot air and is distributed throughout the entire volume of the room. A heat gun is sometimes called a powerful fan heater.

Classification and types

Heat guns are divided into types, depending on the type of energy carrier used to heat the air. Let's consider the main most common types of such air heaters, their design features, areas of use, as well as advantages and disadvantages.

Electrical

The heating element of this type of heat gun can be an open spiral or a tubular electric heater. The latter type is more suitable for this device, since the heating element has a longer service life and is safe to use.

To save money electrical energy and to prevent overheating, there is a thermostat on the case, which, when the highest permissible air temperature is reached, automatically turns off the heating element. At the same time, the fan continues to work.

Advantages

The main advantage of these products, powered by electricity, compared to air heaters powered by combustible fuel, is absence exhaust gases and hazardous waste. Therefore, such devices are considered universal. They are usually used to heat rooms where people work (shops, production workshops).
Electric guns without problems are launched at severe frosts , unlike guns operating on liquid fuel. Therefore, they are widely used in unheated rooms.
Another important advantage is the ability long time operate without the need to refuel any fuel.

Gas

This type of heat gun runs on propane, which is supplied from a special cylinder using a reducer, or from a central network. Gas-burner supplies propane through a special hole into the combustion chamber, which has an automatic ignition system using a piezoelectric element, or the gas is ignited manually. When gas burns, the heat exchanger heats up, through which air from an electric fan passes. As a result, the air heats up and escapes into the room.

The gas gun device has electric fan, therefore it is necessary to have electrical network, although the power consumption of this device usually does not exceed 200 watts, even with the most powerful fan.

Heat gun operating on the basis of gas combustion - powerful device, capable of heating quickly and economically large premises. Gas guns are usually supplied automatic system, which controls the combustion of gas, and also protect the device from overheating, but are still considered dangerous devices. Also, during operation, oxygen burns out in the room, and if there is no ventilation in the room, then after a while the well-being of the people who are there worsens.

Considering these negative factors, such air heaters are usually not used in residential premises. Main area of use – large objects various types. Typically, gas guns can be seen in production workshops, warehouses, construction sites etc.

Diesel

There are two types of diesel air heaters, depending on the heating method - direct and indirect.

Direct heating diesel guns have high energy intensity, the air temperature is very high, which allows you to quickly heat the room. This is achieved by allowing air to pass directly through the chamber where the fuel burns.

As a disadvantage of this type of heat gun, we can note the fact that fuel combustion products also penetrate into the room along with hot air. Therefore, such air heaters must not be used in rooms with people in them.

For thermal air heaters of indirect heating there are no such disadvantages, the combustion chamber does not come into contact with heated air. The air is heated from the hot walls of the chamber, and combustion products are discharged outside through a special chimney. But this reduction in air pollution contributes to a drop in operating efficiency and efficiency.

The main design elements of a diesel gun for heating air are a tank, a combustion chamber and a fan. The fuel supplied by the pump is pumped from the tank to the nozzle, from which the fuel is sprayed into the combustion chamber. In it fuel mixture, consisting of air and fuel, ignites with a special piezoelectric ignition system.

Air forced by an electric fan flows through the combustion chamber and increases its temperature. There are autonomous air heaters that operate in automatic mode and have a combustion control function, as well as a shutdown timer. They are usually installed on industrial and construction sites.

Multi-fuel

In its design, a multi-fuel heat gun does not differ much from diesel heaters. They are also divided according to the type of heating - direct and indirect heating, with similar advantages and disadvantages.

Multi-fuel models of air heaters are more versatile devices compared to diesel guns, in terms of the use of fuel on which they can operate. To operate the gun, you can fill it with diesel fuel, kerosene or waste oil. Therefore, such devices are widely used in auto repair shops. There is used oil that requires disposal, but when it is used to heat the repair box, this problem is solved with maximum benefit - the room is warm and the waste is used.

Infrared

This kind heating devices has a principle of operation that differs significantly from other types of air heaters. The heat created by this device can heat the surface at which the heat gun is aimed. But the heat is not supplied by air flow, but by infrared radiation.

The surfaces of objects and walls, heated in this way, in turn heat the air in the room. The heating efficiency of this method is significantly lower compared to fan heaters and depends on the volume of air in the room. The advantage of an infrared gun is that people located in the infrared radiation zone feel warmth immediately after the heater starts operating.

The main elements of an infrared air heater are a tank, a burner and a deflector, which directs and reflects infrared rays in the required direction. For such a heater, a fan is not required, since the operating principle is to transfer thermal energy using infrared rays, unlike other types of guns in which heat is transferred by forced convection of hot air.

Infrared guns are usually used in areas where high ceilings, poor thermal insulation, as well as in summer cafes or street trading places. At the same time, they are much more convenient compared to fan heaters. For example, when carrying out finishing work on the walls of a room, heating the surface of the walls directly is required, rather than heating the air.

Mermen

A heat gun that uses heat to operate hot water, includes a special heat exchanger filled with water, which is heated from a separate heat source. The use of a water gun for heating air is combined with operational efficiency and the lowest consumption of electrical energy, which is a great advantage of such devices.

In essence, this model is similar to the operation of a water battery, with the difference that it has an electric fan that is able to evenly distribute warm air in the room. This type of heat gun has become especially popular in greenhouses and greenhouses, since in such conditions long-term heating of the air is required, and this device reduces the consumption of electrical energy.

Most often, when choosing any household device take into account two main points - these are the parameters of the product that you need to have for certain needs, and its cost. Therefore, before purchasing, you should specifically determine the purpose of use and the characteristics that you need in the device you are purchasing.

Frequency of product use. That is, you need to know whether you will turn on the gun once for a certain period, or whether it will work continuously for a long time. You should also know whether you need to heat the entire room or only a certain part of a certain surface. Depending on this, it will be clear which type of heater is right for you.
Type of energy used. If you choose the right fuel for your gun, you can save a lot on purchase and operation.
Safety requirements. It is important to know that if there are many people in a heated room, then it is permissible to use cannons equipped with an exhaust gas exhaust system so that combustion products do not penetrate into the air of the room.
Heating level and room size. There is a recommended ratio according to which 10 m 2 of room area requires the use of 0.8 to 1.4 kilowatts of power. Also, when selecting suitable model The air flow speed should be taken into account, as well as the power of the electric fan.

Today, a heat gun is used in various fields, since it has small dimensions and relatively light weight, while its efficiency is very high. All heat guns presented in the modern retail chain differ from each other in the main parameters - dimensions, power, heating method and cost.