Heat guns on diesel fuel and features of their application. How to choose a diesel heat gun The difference between diesel heat guns by heating method

From this article, you can find out what features a diesel heat gun used to quickly heat rooms has: the structure and types of structures, their scope and specificity of the operation process, average prices for popular models. The text provides an overview of the advantages and disadvantages inherent in these devices, descriptions of common types of breakdowns and ways to eliminate them.

With the arrival of the cold season, the problem of heating the premises arises. And this applies not only to living rooms, but also to industrial, warehouse and commercial spaces. If the building does not have centralized system heating, the lack of heat is replenished with the help of alternative heating devices. As such a replacement, you can buy a diesel heat gun not direct heating with suitable specifications.

The device and principle of operation of a diesel heat gun

The heat gun is a universal device for space heating. The principle of operation of such structures is quite simple: diesel burns inside the heater, as a result of which heat is generated, which is supplied to the room by a powerful fan.

Diesel fuel is used as fuel. Some models are able to run on used and filtered oil or kerosene. Thanks to the progressive internal device these designs have high power and coefficient useful action, which reaches almost 100%. All heat guns diesel fuel dependent on electricity. Some low-power modifications can operate on 12 V or 24 V, but most models for normal functioning 220V required.

Electricity is used to start the burner. In addition, it is necessary for the transport of heat due to the rotational movements of the fan. The burner not only atomizes the fuel, but also contributes to the air supply. As a result of this process, a mixture is formed that is highly flammable. Thanks to this, the flame is stable.

Affordable price of diesel guns and the possibility efficient heating premises without central system heating, made these designs so popular. This type equipment is able to generate a large amount of heat, due to which the scope of its application has expanded.

Important! Solar powered guns cannot be used to heat residential areas.

Scope of diesel structures:

• heating of warehouse type premises;
• backup heating at poorly insulated facilities in cases where frosts uncharacteristic for the area occur;
• heating of construction sites where heating has not yet been installed;
• organization of heating in hangars used for storage of equipment;
• installation of stretch ceilings;
• heating of greenhouse structures used for growing crops.

In addition, you can buy an indirect heating diesel gun to organize heating in the garage.

Why is it profitable to buy a diesel gun: design advantages

Guns that heat rooms by burning diesel fuel have many undeniable advantages. They are compact in size and big weight, while having excellent technical specifications. These designs are easy to use. The mechanism is launched with just one push of a button.
The user has the ability to control the temperature in the room.

Many diesel designs have a built-in system for connecting a rheostat. The principle of operation of this mechanism is very simple. Before launching the gun, it is enough just to set the required parameter. When the room temperature reaches this value, the automatic shutdown equipment. When the temperature drops below the level of the specified mark, the structure will start on its own.

Diesel guns are economical, fuel consumption depends on the technical parameters of the device. Equipment with a power of 20 kW and a capacity of 550 m³ / h will need about 1.5 liters of diesel fuel to warm up this volume. Using such a gun, you can achieve quick results. According to the manufacturer's information, diesel devices heat up the room instantly. The air temperature of +10°C in a room with a volume of 120 m³ can be raised by a gun to a level of +180°C in 15 minutes. And this speed is not the limit.

Diesel devices are safe to operate. If the room is well ventilated, the inhalation of burnt air does not cause such unpleasant consequences as headaches and dizziness. Quality constructions are able to work in a long mode without additional refueling. The guns are equipped with tanks of large volumes, thanks to which they are able to work continuously throughout the day.

Note! The body of the structure is heated to a temperature of + 30-35 ° C maximum. Therefore, accidentally touching the gun will not cause burns.

Disadvantages of using diesel heat guns for a garage

The customer reviews left about diesel heat guns for the garage not only reflect the advantages of these designs. Sometimes they also have shortcomings that were identified by users during the operation of the device.

High noise levels are often cited as a serious hearing irritant. Although the presence of sounds is considered normal for heating equipment. Guns do not belong to the category of silent devices. Some manufacturers offer models with reduced operating noise levels. For example, the Master BLP 15M diesel heat gun produces no more than 20 dB. This figure is considered very low.

Many users find devices dependent on electrical network uncomfortable. The gun does need power for the fan and pump, and there is no way around these requirements. However, most often such structures are used at facilities where there is electrical wiring.

Among the shortcomings is also mentioned high price diesel heat guns. However, it should be noted that the cost of such devices is fully justified by their reliability and comfortable operating system. Many people are concerned about the cost of diesel fuel, which is more expensive to buy than liquefied gas in balloons. Although the fuel consumption of these devices is small.

How to choose a heat gun according to technical parameters

One of the most important technical parameters any heat gun is the level of its performance. In the characteristics, manufacturers indicate the number of kilowatts that the gun is capable of delivering in intensive operation. You can also calculate the performance level yourself.

An average power of 1 kW is enough to heat an area of ​​10 m², provided that the ceiling height does not exceed 3 m. This indicator is conditional, since it depends on the operating conditions of the room that needs heating.

Factors that affect heating efficiency:

• wall thickness;
• availability and quality of insulation;
• condition ventilation system;
• heat leakage (frequency of opening gates or doors);
• number of windows and doorways, their size;
• outdoor air temperature;
• the condition of the floors;
• wind strength, etc.

The price of an indirect diesel heat gun is not an indicator of quality. When choosing a device, it is advisable to pay attention to powerful modifications. The higher this figure, the better. If there is a lot of heat, you can always reduce the intensity of work. And if there is a shortage of heating, you will have to buy another device, which will significantly affect the budget. For efficiency diesel heater the place of its installation also has an effect.

Useful advice! AT large rooms it is advisable to use several heaters. Arranging appliances diagonally will be more effective than placing them along a wall.

Cold air is always heavier than warm air, so it always accumulates in the lower part of the room. Based on this, it becomes clear that installing the gun on a hill or turning its working edge up does not increase the heating efficiency. The most optimal position of the equipment is horizontal.

The performance of thermal ventilation equipment is another parameter that you should pay attention to. For an indirect heating diesel gun Ballu BHDN-20, this figure is 500 m³ / h. This means that the device is able to effectively heat the specified volume of air within 1 hour.

Last but not least are the dimensions and weight of the structures. The mass of heat guns can vary between 3-30 kg. Most of them have a mobile design, so they are easy to use. The smaller the device, the easier it is to move.

Features of direct heating diesel heat guns

Direct heating guns are the simplest devices that can serve as heat sources. Such designs have an open combustion chamber. A pump equipped with a nozzle is installed inside, due to which a torch effect is provided. Behind these elements is a fan. All the heat that is generated in the process of fuel processing is supplied to the room along with the products of its combustion.

1. Diesel fuel from the tank is fed into the heating filter.
2. The compressor transports fuel to the injector.
3. The diesel fuel is ignited by the glow plug.
4. A fan mounted behind the burner captures cold air from the room to the combustion chamber, where it is heated.
5. The protective grid located in the front of the device delays the flame, preventing it from penetrating outside the combustion chamber housing.
6. After heating, the air is fed back into the room.

Related article:

Construction and principle of operation. Varieties of thermal curtains. Installation and repair of the device. well-known manufacturers.

The principle of operation of a direct heating gun is quite simple. It is efficient and understandable. However, such guns have one significant drawback. All combustion products enter the room, so it is not recommended to use devices in living rooms. Direct heated guns are suitable for open areas and spaces with a good ventilation system.

Average prices of diesel guns for space heating (direct heating designs):

Note! Using fuel with impurities will lead to injector contamination and other unpleasant consequences. Therefore, it is very important to use quality raw materials in order to avoid expensive repairs and purchase of spare parts for a diesel gun.

Consumer opinions about diesel heat guns: reviews of direct heating designs

Users of heating equipment often share their own opinions on forums. Some of the reviews can be found below:

“I have long heard about the advantages of Master diesel heat guns, so when it became necessary to purchase a heater, I did not think for a long time and made a bet on this particular manufacturer. The gun works perfectly and fully justifies the money spent on its purchase. With its help, I not only heat the garage, but also take this device with me to the dacha for the workshop.

Of course, it’s a pity that you can’t work in a room where the gun is turned on, but I don’t really need this. It takes no more than 20 minutes to warm up the room. Other than that, I'm completely satisfied with my purchase."

Sergey Kostyuk, Yekaterinburg

“I bought myself a BALLU BHDP-20 diesel heat gun. Excellent unit. For a month of operation, no failures in automation, as was the case with my previous gun. I like that the design provides for the ability to adjust the pressure on the compressor that the diesel supplies. There is only one downside - full tank The device is a bit heavy.

Igor Samoilov, Moscow

“To heat the garage, a neighbor advised me to purchase a heat gun. I went through the manufacturers and models for a long time. In the end, I settled on the Master B 35 CED diesel gun. Great machine, very simple. It is economical and completely unpretentious in maintenance. I've been using it for over a year now. One filling is enough to keep the gun running all day. A 5x8 m garage warms up in 15 minutes.

Georgy Miroshnichenko, St. Petersburg

Features of indirect heating diesel heat guns for the garage, prices and reviews

This type of gun functions in much the same way as direct fired designs. The only difference is that the products of combustion, which are formed in the process of fuel exhaustion, are removed outside the room. For this, a chimney is used. Thanks to this, indirect heating guns can be used in almost any room with a sufficient level of ventilation.

A nozzle is installed in the design of the closed combustion chamber. In addition, the gun has a system designed to remove combustion products. The air blown by the fan does not come into contact with the torch. Its heating is provided by blowing the combustion chamber.

Average prices for diesel heat guns of indirect heating:

Useful advice! Define thermal power space heating appliance can be used with this formula: Q (in kcal/h) = K × V × ΔT, where Q is required level heat output, K is a coefficient reflecting the degree of heat dissipation, V is the total volume of the room, and ΔT is the difference between the outdoor temperature and that required to create a comfortable indoor microclimate.

Mankind has come up with a lot of heating units that act as heat generators. These are numerous convectors, fan heaters, infrared heaters and much more. The most powerful of them are productive heat guns. They are designed for space heating. big size and are characterized by high power. Most powerful unit is a diesel fueled heat gun. Working on diesel fuel, it generates enough heat to heat quite large volumes.

In this review, we will look at:

• Scope of diesel heat guns;
• Varieties of heat guns on diesel fuel;
• Their advantages and disadvantages.

At the very end, we will talk about the most popular models on sale.

The principle of operation and scope of diesel heaters

A diesel fuel heat gun is a fairly versatile unit. But not only for heating residential premises. Such units are used for heating warehouses, hangars with machinery, facilities under construction, large garages and greenhouses. The principle of operation of heat guns is very simple - diesel fuel burns inside them, and the resulting heat is pumped by a powerful fan into the heated space.

Despite the use of diesel fuel, this type of heat gun cannot be called autonomous. Electricity is still required to operate the burner and blow hot air.

An interesting feature of any diesel-fueled heat guns is that they are volatile - they need electricity to operate. Low-power models can operate on 12 volts (or 24), but the vast majority require connection to a 220 volt network. Electricity here is necessary for the operation of the burner and forcing hot air into the heated rooms (for fan rotation).

The burner in any diesel gun works as follows - it sprays diesel fuel and at the same time provides air supply. The resulting fuel-air mixture ignites, creating a steadily burning flame. The heat generated in the liquid fuel heat gun is sent to the room - a powerful fan is responsible for this.

Heat guns on diesel fuel are necessary:

• For heating warehouse premises - they generate a large amount of hot air, eliminating the need for full-fledged heating;
• As a backup source of heat for heating any objects in the event of frosts that are uncharacteristic for the area;
• For heating construction sites, when there is still no heating here;
• For heating hangars in which people work and equipment is stored;
• For mounting stretch ceilings- a powerful heat source is required here;
• For heating greenhouses where any crops are grown.

At the same time, a thermal diesel gun is not suitable for heating residential premises. There are two reasons for this - too high productivity and the need to remove combustion products.

Varieties of diesel heaters

Heat guns running on diesel fuel are represented by two large categories - these are direct and indirect heating devices. Let's see how the presented varieties differ from each other.

Heat guns of direct heating

Direct heating diesel gun is the simplest source of thermal energy. It is fully equipped open cam combustion. Its heart is a pump with a nozzle that provides the generation of a torch. Behind him is a powerful fan. The generated heat, together with the products of combustion, is sent to a heated room. That is, there is no separate chimney here, which is a big minus.

A direct heat gun is harmful to human health, so its operation in an unventilated room is prohibited (despite the practical complete combustion diesel fuel). Yes, and where good ventilation, people will be constantly haunted by the smell of burning - there is no escape from this. Such units are most often used in open areas where there is an influx of fresh air.

There are craftsmen who manage to convert direct-type guns into indirect-type units, which will be discussed later - they are safer.

Heat guns of indirect heating

Being near a direct-fired diesel heat gun is like sniffing the smoke from a truck's exhaust pipe. Prolonged exposure to a heated room can lead to severe headaches and poisoning. Therefore, such units are used relatively rarely. But they came up with a great alternative.

The diesel heat gun of indirect heating is a more perfect and advanced device. In some ways, it resembles a liquid fuel heating boiler. Only it does not heat the coolant, but the air. The basis of such a heat gun is the same nozzle - it is placed in closed cell combustion, equipped with a system for removing combustion products (in other words, a chimney). The rest of the design is the same.

Due to the removal of combustion products to the outside, such units can be used to heat unventilated rooms. The forced air in these guns does not come into contact with the burning torch - it seems to blow over the combustion chamber. As for burning and soot, they go to the connected chimney and do not enter the premises. Thanks to this, indirectly heated diesel fuel heat guns can be used in almost any conditions.

Despite the presence of the removal of combustion products to the outside, for the operation of units of indirect (indirect) heating, at least some kind of ventilation is still needed - oxygen for the operation of the burner is taken directly from the room.

Advantages and disadvantages

Let's see what are the advantages and disadvantages of diesel fuel heat guns. They have a lot of advantages:

• Ease of maintenance - there is no complicated diesel used in automotive equipment. The heart of these units is a simple diesel heater in the form of a nozzle with a pump;
• The heat gun may have big power- on sale there are samples with a capacity of 10, 20 or 30 kW, as well as monstrous units with a capacity of up to 150-200 kW;
• Possibility of warming up large rooms in the shortest possible time - thanks to the use of efficient fans, diesel fuel heat guns are characterized by high performance;
• Economical compared to electrical units, even long-term operation of a diesel heat gun will not lead to gigantic costs.

There are also disadvantages:

• Diesel heat guns of direct heating are unsafe for humans - they release toxic components into the air resulting from the combustion of diesel fuel;
• Energy dependence - these units cannot work without a source of electricity;
• High cost - diesel heat guns are appliances industrial use what affects their price;
• The smell of diesel fuel - with prolonged use, the smell of diesel fuel may spread in the room.

Cons are not the most serious, so they can be neglected (with the exception of the first paragraph)

Popular Models

If you want to buy a diesel heat gun, then you will need information about the most popular and popular models. Let's consider them in more detail and talk about their technical characteristics.

Before us is a fairly powerful diesel heat gun of indirect heating from domestic manufacturer. Its power is 30 kW, the performance indicator is 500 cubic meters per hour. It can be used in any premises. The fuel in it burns out almost completely, and there is a thermostat on board to maintain the set temperature. One of the important functions is protection in case of extinction - if the flame suddenly disappears, the unit will immediately turn off.

The design of the heat gun Resant TDPN 30000 provides a built-in tank for diesel fuel, its volume is 50 liters. This supply will last for 15 hours continuous work. For ease of movement of the device, it is equipped with wheels and a carrying handle. The weight of the heat gun is 48 kg.

Heat gun, diesel QUATTRO ELEMENTI QE-22D 243-905

Under such an intricate name lies an impressive heat gun with a power of 22 kW. With a fuel consumption of 2.1 kg / h, it is characterized by a capacity of 585 cubic meters. m/hour. The heater weighs only 16 kg and is equipped with a built-in tank that can hold 19 liters of diesel fuel. The heat gun belongs to direct heating models, so all combustion products go straight into heated rooms - use it only where there is good ventilation.

The main advantage of this heat gun is the increased durability of the combustion chamber. The diesel fuel burning in it does not cause any significant harm to it, thereby increasing its service life. The digital electronics, built on the basis of a microprocessor, is responsible for controlling the operation of the heat gun. To control the temperature, the heater is equipped with a digital indicator.

This heat gun is characterized by increased endurance - it uses nodes characterized by high strength and reliability.

Before us is one of the most powerful heat guns. Its power is 70 kW with the consumption of diesel fuel in the amount of 5.7 kg/h. Such an impressive unit was equipped with a capacious tank, which can hold 80 liters of fuel. Due to the use of an indirect heating system, the presented model can be used indoors - combustion products are removed through a connected chimney.

Despite the high power, the heat gun turned out to be quite compact. It is easily moved from place to place, for which there are wheels and two handles. The chimney is connected from above. To control the air temperature on board, a small LED indicator is implemented. Next to it is a temperature control knob. The maximum heated area for this heat gun is 400 square meters. m.

Skip products from so famous brand it would be simply impossible and unacceptable. The Ballu BHDN-20 heat gun has a power of 20 kW and can be used to heat rooms up to 200 square meters. m. The productivity of the apparatus is 500 cubic meters. m/hour. Diesel fuel is poured into a tank with a capacity of 24 liters. At the same time, the fuel consumption of this heat gun is only 1.6 kg / h.

The heat gun is built according to the scheme with indirect heating and is equipped with a powerful ignition system that provides instant ignition of the burner. To ensure a long service life, the combustion chamber is made of heat-resistant stainless steel. In addition, the heat gun is equipped with a powerful fan, wear-resistant housing, two wheels and a handle for transportation.

Video

22 June 2015 Alexei

The diesel heat gun is a device with a very high level efficiency, used for various purposes, one of which is the heating of objects for various purposes. For greater convenience, more than one type of such equipment is offered today.

Learn more about the application

The diesel model exists in two versions, each of which is designed to solve a certain kind of problem:

• Device with indirect heating;
• Heat gun of direct heating.

The first option is used more widely, for example, for heating civil, industrial, warehouse, agricultural and domestic premises. This is due to the fact that the design provides for a chimney, through which the combustion products of the fuel are removed. That is why this type of heat gun is used in residential areas.

We watch the video, their types and the rule for choosing equipment:

But the indirect heating device is used only in industrial, agricultural and warehouse facilities. And then, only on condition of the organization of an effective ventilation system. A heat gun in this design is more efficient due to almost 100% efficiency, but even when using such equipment in non-residential premises, it requires regular ventilation.

The design and subtleties of functioning

The gun runs on liquid (diesel) fuel, which, with regular operation, makes this unit unnecessarily expensive. But as a substitute, some prefer to use kerosene. Depending on the design, the design of such equipment is somewhat different: a direct-heated diesel heat gun does not have a chimney outlet, while a direct-heated device is equipped with such an element, which determines its operation in residential premises.

Diesel model device

Diesel compact heat gun of various types consists of the following elements:

1. Burner.
2. The combustion chamber.
3. Motor.
4. Nozzle.
5. Control Panel.
6. Fan.
7. Fuel pump.
8. Fuel tank.
9. Electrovalve.

A direct-heated diesel gun delivers fuel combustion products into the room along with heated air. As a result, with a poor-quality ventilation system in such a room, you can very quickly “burn out” from a large number harmful substances.

The equipment, when turned on, starts the pump, which is responsible for supplying fuel to the combustion chamber. At the same time, the fan starts to move, due to which heated air is supplied to the outlet of the device.

Overview of advantages and disadvantages

Diesel heterogeneous compact heat gun has radical difference from analogues, which consists, firstly, in the use of liquid fuel, and secondly, in the design. The benefits include:

• High level of performance, depending on the performance of the device, the efficiency of the device can reach 100%;
• Diesel heterogeneous thermal high efficiency the gun is compact and lightweight, which is very convenient when it is necessary to transport the device and transfer it directly inside the object;
• The diesel gun is very easy to operate: just press the button to start;
• For ease of use, the design provides a rheostat to stop the operation of the unit when the desired temperature is reached;
• A diesel gun of various types can be called economical equipment;
• Considering high efficiency, it is quite natural that with the help of this device you can almost instantly warm up the room;
• A diesel gun of various types is very reliable and can function for a long time without the need for additional fueling;
• During operation, the diesel gun of different types does not heat up to high values temperatures - a maximum of 35 degrees, and also does not pose a danger to humans, if the exhaust gases are properly organized.

Despite the long list of advantages, a diesel compact heat gun of various types also has some disadvantages, however, like any other type of equipment. The disadvantages include:

• Noise effect, however, the vast majority of analogs work accompanied by noise of different levels;
• The need to use a dedicated power source to power components such as a fan and pump;
• A diesel compact heat gun of various types needs fuel control and periodic refueling;
• The cost of the device is noticeably higher than analogues, more expensive maintenance is also noted.

The high price of such equipment is not always a significant drawback, since the device will pay for its costs as it is used.

Overview of popular models

Resanta TDP-20000

A diesel gun of various types of indirect and direct heating is quite expensive. The device of this type of medium price category- This is the Resant TDP-20000 model.

Its cost is 20,000 rubles, while the user receives a high-performance unit with a capacity of up to 20 kW with direct heating and the ability to connect to a single-phase network. The design provides for a fairly capacious fuel tank - 24l.

The overall performance of the device corresponds to a hot air supply rate of 620 cc. m.

Approximately at the same price, a direct heating option is offered - ELITECH TP ​​22DB worth 19,500 rubles. The device runs at 357cc. m, produces a power of 22 kW. Fuel consumption is 1.7 l/h.

QUATTRO ELEMENTI QE-25DN

An alternative solution is an indirect heating diesel gun of the QUATTRO ELEMENTI QE-25DN model at a price of 44,000 rubles, which is noticeable more expensive than analogues. The volume of the tank is 50 liters, the power is 25 kW, and the performance level corresponds to a speed of 330 cc. m.

Given the size of the fuel tank and the high degree of efficiency of the device, it is obvious that such an option would have a rather large weight (40 kg).

As you can see, an indirect diesel heat gun will cost more, but the user can use the unit in different areas and for various purposes. However, the heating rate will be lower due to design features.

Customer opinion

The diesel compact heat gun of indirect heating, as well as the analogue of direct heating, despite the manufacturer's statement, works quite quietly. Of course, the noise level in each performance may vary, but in general there is a relatively quiet move. You can find out how quickly or slowly fuel is consumed from the reviews. But at the same time, the intensity of the device’s operation affects the combustion rate. Accordingly, for some buyers, a diesel compact heat gun of indirect heating works for a long time without refueling, while for others - a short period.

We watch the video, an overview of the models and their application:

It happens that users mark too strong smell and the appearance of soot during operation. However, priorities should be set here: either get a device with a high level of performance, or choose a technique that is less aggressive in operation (meaning the release of combustion products into the room), but at the same time more harmless to humans.

To avoid the appearance of soot, it is recommended to use only fuel suitable for a particular device. For such devices as a diesel heat gun of indirect and direct heating, this is diesel fuel and kerosene. In the case of using diesel fuel, soot may appear. Thus, to obtain highly efficient equipment, it is enough to correlate the parameters of the room and the characteristics of the selected device.

If the power of the unit does not match the volume of the room, the performance may noticeably decrease. When choosing a device, it is important to pay attention not only to power, but also to the air flow rate. This parameter is noticeably higher for direct heating versions. Accordingly, the user should first decide what is more important: heating efficiency or fresh air output at a slightly lower feed rate.

As a rule, with the onset of the cold period of the year, the problem of heating premises for various purposes sharply arises.

And this applies to both private residential buildings and industrial premises different type. In such cases, the heat supply from the central heating system is expected. But what about when central heating still not working or not at all in the room?

In such situations, one usually tries to use alternative sources heating, which can safely be attributed to such a type of units as heat guns.

Modern market heating equipment has enough a wide range of heat guns various kinds. But special place this range is occupied by diesel.

To have an idea about this type of thermal units, 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

Diesel heat gun is a kind of heating unit, whose main purpose is to quickly and economical heating such non-residential premises as production workshops, agricultural storage facilities, construction sites And so on.

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

Advantages of application

The use of diesel heat guns for household 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;
• simple maintenance;
• depending on the type, the power of diesel heat guns varies from 20 to 230 kW;
• enough economical consumption diesel fuel;
• opportunity to work in offline more than 10 hours;
• good functioning of the unit at low temperatures;
• perfectly heat large areas.

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

Kinds

Diesel heat guns are usually divided into two main options:

• direct heating units;
• indirect heating units.

Consider the principle of operation of each of these types of heat guns.

direct heating

The principle of operation of a diesel heat gun is as follows:

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

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

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

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

indirect heating

The principle of operation of a heat gun with indirect heating is almost the same as the previous type.

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

Converting direct heating to indirect

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

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

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

But here the obvious question arises about the effectiveness and cost of such a method of technical alteration of the heat gun, which remains open.

The lineup

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

After analyzing the products of manufacturers of heat guns, we have identified a number of the following most popular models:

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

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

In the conditions of our cold winter we can not do without space heating. Often needs to be warmed up separate sections premises or create conditions for working outdoors in frost. The use of special equipment for heating will help solve the problem of heating buildings under construction, garages, warehouses. high power- heat guns. One of the advantages of these powerful fan heaters is their high mobility, they can be easily transported to the right place.

Principle of operation

The heat gun is a powerful air heater. Works just like a regular household heater. Heating element, located in the gun body, heats up itself and heats the air flow passing through it. The output is a very powerful jet warm air. Hence the name of the unit - a heat gun.

At the same time, the heat transfer process occurs almost instantly, which allows you to heat the air in the room very quickly.

Manufacturers produce models that run on different types fuel. On the market are:

• diesel fueled units
• on kerosene
• on liquefied gas
• electric heat guns.

Diesel heat guns of direct heating are often used in construction. For example, when installing stretch ceilings, a mobile heat gun is indispensable. Heat guns can be used when you need to quickly dry the surface

Diesel heat guns

Diesel heat guns are the most popular. This is primarily due to the availability of the fuel used - diesel fuel. Naturally, when diesel fuel is burned, combustion products are released.

With this in mind, there are two main types of diesel fuel heat guns on the market. They differ from each other in the way the exhaust gases are removed:

• diesel guns of direct heating, in which the heated air is discharged directly into the room
• guns of indirect heating. The design of the unit provides for the removal of exhaust gases outside the premises.

The price of the unit directly depends on the design of the heat gun, in other words, on the method of heating the air flow. If it's about diesel guns, then direct-heated guns are about half the price. This design has its pros and cons.

Heat guns of direct heating

The principle of operation of a direct heating diesel heat gun is simple. A powerful fan with an electric motor is located in the unit case. From the fuel tank, fuel is pumped into the combustion chamber by means of a pump. Since the burner is inside the housing, open fire while not. In view of this, heat guns can be used indoors.

When burned, diesel fuel heats the air flow coming from the fan. The heated air flow passes through a special screen and is directed to the object that you want to heat. At the same time, waste products of combustion, the same exhaust gases, dust, soot are discharged together with the air flow into the heated zone.

Therefore, direct heating diesel heat guns can be used in well-ventilated rooms, semi-open rooms or outdoors.

Most often, such units are used if necessary to perform one-time work. For example, in winter, a car engine froze in frost, warmed it up with a cannon, repaired it and drove off. Or in construction industry to speed up the process. The builders completed, for example, a screed, and warmed up the room with a heat gun for fast drying. It is important that people do not stay indoors for a long time during the operation of the unit, so as not to be poisoned by combustion products.

If you are faced with the task of heating a room in which people stay for a long time, you should choose an indirect heat gun.

Heat guns of indirect heating

The device of a diesel heat gun of indirect heating is a little more complicated. In such designs, a special chamber is added - a heat exchanger. Fuel is supplied from the fuel tank to the combustion chamber, while the combustion products of diesel fuel do not mix with the air flow from the fan, but are removed through the chimney to the outside. The task of the user is only to organize the output chimney from indoors to outdoors.

During the operation of the gun, the heat exchanger heats up itself and heats the air that drives the fan. A heated, and at the same time free from combustion products, air stream comes out of the nozzle of the heat gun. Such units can give an outlet temperature of 50 to 110⁰С.

Heat guns of indirect heating can be used in rooms with working people without restrictions, exhaust gases will not enter the room.

combustion chamber in modern models Made from high strength stainless steel. To protect against overheating, the guns are equipped with thermostats that automatically reduce the intensity of the flame when overheated. The outer casing of the unit does not heat up at all.

By the way, an additional thermostat installed in the room can be additionally connected to the device. In this case, the heat gun will be able to automatically maintain the set temperature in the room. And the unit itself can work up to 16 hours without stopping.

In order to warm up large area, the kit includes flexible hoses- corrugations made of durable material with a diameter of 300-600 mm. With the help of corrugations, you can direct the warm air flow to the right place for organizing local heating.

With the help of heat guns of indirect heating, you can easily solve the problem of heating shops, stalls, warehouses, car washes and exhibition centers.

Infrared diesel heat gun

There is another type of guns that run on diesel fuel. These are infrared heat guns. The design of these units does not include a fan heater. These heaters work on a different principle.

Infrared heaters do not heat the air masses in the room, like the fan heaters we are used to, but objects that fall into the field of infrared radiation. In turn, objects heat the air through heat exchange.

In design infrared gun using a burner with diesel fuel is heated infrared emitter. He, in turn, heats objects and surfaces in the room, it remains only to direct in the right direction.

The absence of a fan can be attributed to positive moment of this unit. After all, fans work, making noise, and infrared heat guns are almost silent.

How to calculate the power of a heat gun

As you can see, the scope of a diesel heat gun directly depends on the principle of operation. to someone suitable option with direct heating, but for some, these models will be unacceptable.

There is another factor influencing the choice of model is its power. AT different models it varies from 20 to 220 kW. In fact, if your task is to purchase an air heater for mounting stretch ceilings, it makes no sense for you to purchase a unit increased power, after all, his fuel consumption will be many times greater.

In order to determine the choice of model, you need to calculate the required power of the unit. To do this, you need to know the volume of the room. Recall that the volume is easy to calculate, knowing its dimensions - the length, width and height of the walls. In addition, you need to know the degree of thermal insulation of the room, it is indicated by the coefficient of thermal insulation.

The coefficient of thermal insulation is different for:

• uninsulated rooms from wooden structures or metal sheets(for example, a metal shell garage). K warm = 3.0-4.0
• uninsulated brick rooms with a single brickwork, single windows, non-insulated roof (for example, country house). K warm = 2.0-2.9
• standard brick buildings with conventional thermal insulation, such as a standard residential building. K warm = 1.0-1.9
• buildings with improved thermal insulation. K heat = 0.6-0.9

To calculate the power, you need to know the temperature difference between the outside and inside the room.

The power of the unit is calculated as follows: the volume of the room is multiplied by the temperature difference and multiplied by the thermal insulation coefficient.

For an uninsulated warehouse, we take a thermal insulation coefficient equal to 2. Well, suppose that the temperature outside the window is -5⁰С, and we need +16⁰С (the minimum allowable at the workplace). The temperature difference turned out to be 21⁰.

We calculate the required power. 300*21*2=12600 kcal/hour. To convert to the usual kW, divide the value by 860. We get

12600 /860=14.7 kW.

This means that to maintain the temperature in our warehouse at 16⁰, we need a heat gun with a capacity of at least 15 kW.

Diesel heat guns will good decision heating problems of any premises. Mobility and ease of operation, as well as the possibility of choosing a design depending on the purpose, make this heating equipment unrivaled. We hope our material will help you in choosing the right unit for you.