Solar heater. Diesel fuel heat gun. Direct heating heat guns
Important in any room comfortable temperature regime , but it is not always possible to ensure this.
To solve the heating problem there is a use case heat gun, which works for diesel fuel, has small dimensions and can be easily moved to the right place.
Also, these devices are convenient to use in the process construction work, For example, for heating rooms where installation takes place suspended ceilings.
In a simplified form, the design of a heat gun is as follows set of components:
- fan;
- heating element;
- fuel container;
- frame.
Cannon operation ensured by the combustion of fuel, the heat obtained from combustion with the help of a built-in fan forms a flow of warm air that fills the space around.
However, such guns differ in the heating method. It happens two types: direct and indirect.
The only difference between these methods is that devices with direct heating, together with warm air combustion products of the fuel mixture, such as soot and smoke, also enter the room. Heaters that operate indirectly require equipment special sleeve for removal of combustion products and chimney.
| Model/ Parameter |
Ballu BHDP-10 | Ballu BHDN-20 | Master B 150 CED | Master BV 77 |
| Heating type | direct | indirect | direct | indirect |
| Chimney | No | There is | No | There is |
| Power | 10 kW | 20 kW | 44 kW | 20 kW |
| Fuel consumption | 0.8 kg/h | 1.6 kg/h | 3.5 kg/h | 1.67 kg/h |
| Tank volume | 12 l | 24 l | 44 l | 36 l |
| Air performance | 590 m 3 /h | 500 m 3 /h | 900 m 3 /h | 550 m 3 /h |
| Dimensions | 680x400x280 mm | 890x675x440 mm | 1110x400x450 mm | 1180x410x530 mm |
| Weight | 10 kg | 22 kg | 25 kg | 61 kg |
Important: All heat guns are mainly powered from a 220 V network. The speed of heating the room depends on the air capacity of the device.
Repair of a diesel heat gun
If malfunctions occur, it is better to contact a specialist, but there are some breakdowns that can be repair it yourself:
- After turning on the heater, it turns off immediately. This can happen if any of the filters, the nozzle through which fuel is supplied, or the combustion photosensor is dirty, or the air injection pressure sensor is not configured correctly. The same problem could be due to the connections between the photosensor and the control panel board. The photo sensor reacts to the presence of light, so it is cleaned and the connections are checked for integrity and correct connection.
- The device does not turn on, or the engine does not run for long. There may be several reasons for such a breakdown. Low fuel level in the tank, as well as corrosion and clogging of the electrodes, or the presence of moisture in the fuel tank.
- Fan inactivity when turned on. First of all, check the setting of the thermostat, which may be set to too low a value. If this is not the reason, then check the electrical connections printed circuit board and engine. If this is not the case, the connections are restored.
- Weak flame. This malfunction is corrected by adjusting the thermal power level.
- The heat generator stopped working. This problem is caused by a blown fuse that needs to be replaced.
- Equipment overheating. The reason for this is faulty wiring and the fault can only be eliminated by replacing it. It is permissible to turn on the equipment only after it has cooled down, but it is recommended not to delay full repairs.
If you need to heat a workshop (workshop, garage, shed, hangar), or you cannot continue repairs in the winter due to low temperatures and high humidity in the building, or your car does not start in severe frosts, then diesel heat guns will become an indispensable thing in this matter.
At its core, heat gun- This heat generator for space heating. In it, the air flow is heated by the combustion of liquid fuel. It consists of a cylinder with a built-in fan, a pump, a nozzle and a burner. At the very bottom is the fuel tank. The operating principle of a diesel heat gun is simple:
- From the tank, using a pump, fuel enters the nozzle;
- a flammable mixture begins to spread from the nozzle under pressure;
- fuel ignites in the chamber;
- the fan pumps air through the cylinder;
- at the exit we get a stream of highly heated air.
There are 2 types of diesel fuel heat gun:
- Heat generator direct heating.
- Indirect heating heat generator.
Direct heating heat generator
A direct heating diesel heat gun is not equipped with a chimney and has the simplest design. Therefore, direct-flow heaters are inexpensive, compact, easy to use and reliable. Ignition of the fuel occurs using a spark plug, in some models - from electric arrester. The heated stream of air, along with the exhaust gases, enters the building that needs to be warmed up.
The use of such a heater is only possible in non-residential buildings with a good ventilation system or on construction sites (open).
Below is shown the design of a diesel installation using the direct heating method.
Indirect heating heat generator
A diesel heat gun of indirect heating is used in all cases as direct flow. But due to the fact that gases are vented outside, the range of its application expands significantly:
- in construction;
- agriculture;
- V production workshops;
- for drying plaster (putty) during the cold season;
- heating concrete;
- drying facades during facing work;
- for warming trenches;
- heating greenhouses, livestock farms;
- heating residential premises and other things.
The design of diesel heat guns with exhaust gas removal contains closed chamber, in which fuel burns, and a chimney. Fuel is supplied under pressure to the nozzle, in the chamber it is sprayed in the form of an aerosol and ignites. Air is pumped inside the unit by a fan. To maintain the combustion process, part of the air enters the chamber through holes located at the rear. The rest of the flow moves between the heater casing and the combustion chamber, where it is heated. Smoke exits the chamber through the chimney and is discharged outside, bypassing the room.
The use of such diesel heat guns is permitted for heating garages, rooms with people in them, and pavilions. But during the operation of the heater, oxygen burns out, so you need to provide ventilation to compensate for his loss.
Heat gun on liquid fuel It can also be multi-fuel. This means that the unit is capable of operating on waste oil, gasoline, diesel fuel, and kerosene. Often this type of heater is used in places with a sufficient amount of petroleum products and their waste. These could be: fuel warehouses, car parks or car services. At the same time, the problem of recycling fuel and lubricants waste is solved and heating is obtained free.
The figure below shows the operating diagram of a multi-fuel generator.
Diesel infrared guns
The liquid fuel infrared heat gun heats large rooms with high efficiency and at the same time efficiency. It can also be successfully used on outdoors. This type of heat generator heats the very objects towards which it is directed. Heating of the air occurs from objects heated by the rays, and the height of the ceilings in the room does not play a significant role. Due to these characteristics, significant fuel savings are achieved.
Using this property, it is convenient to spot heat objects in the open air.
How to choose a heat gun
There are a few important things to consider before choosing a heat gun.
Most heat guns have a handle temperature adjustment, with which you can adjust the operation of the unit to a given room temperature, after which it turns off. The device does not turn on if the temperature on the display is set lower than in the room. Diesel heaters are also equipped with protective system from overheating.
How is the power of a heat gun calculated?
The thermal power of the device is calculated by the formula: V * T * K = kcal/h, where:
- V – volume of the room (width * length * height), in m3;
- T – difference between outside and indoor temperatures, in degrees Celsius;
- K – thermal dissipation coefficient.
For different types premises the coefficient values are set:
- from 3.0 to 4.0 - a room in which thermal insulation is not provided, for example, a structure made of wood or sheet metal;
- from 2.0 to 2.9 - a room with poor thermal insulation. A simple building with one brick masonry;
- from 1.0 to 1.9 – a building having intermediate level thermal insulation (2 bricks and several windows, standard roof);
- from 0.6 to 0.9 – building with thermal insulation high quality. Brick building with double insulation. Double glazed windows. The base under the floor is of sufficient thickness. High quality material was used on the roof for insulation.
An example of calculating the power of a diesel heat gun:
- V = 150 m3;
- T = 29°C ( outside temperature-10°C, required indoors +19°C, the difference will be - +29°C);
- K = 2 (building with one brick masonry);
We substitute the data into the formula: 150 * 29 * 2 = 8700 kcal/h, despite the fact that 1 kWh = 860 kcal/h. This means: 8700 / 860 = 10.116 kWh. Thus, we learned that to warm up this building, a liquid fuel heat gun with minimum power 10 kWh. It is recommended to buy a unit with some power reserve.
Advantages of diesel heat generators
There are several positive aspects when using diesel heat guns:
- excellent performance characteristics;
- ease of maintenance;
- power can reach up to 230 kW;
- Very low fuel consumption;
- battery life more than 10 hours;
- works well at low temperatures;
- opportunity fast heating premises large area.
Based on the above positive aspects, we can say with confidence that the heat gun is the most effective device for heating residential and industrial premises.
From this article you can find out what features it has diesel gun thermal, used for quick heating of premises: structure and types of structures, scope of their application and specificity of the operating process, average prices for popular models. The text contains 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 space heating arises. Moreover, this applies not only to living rooms, but also to industrial, warehouse and commercial type. If the building does not have centralized system heating, the lack of heat is compensated with the help of alternative heating devices. As such a replacement, you can buy an indirectly heated diesel heat gun with suitable characteristics.
Design and principle of operation of a diesel heat gun
A heat gun is a universal device for heating rooms. Operating principle similar designs Quite simple: diesel burns inside the heater, resulting in heat that is supplied to the room by a powerful fan.
Diesel is used as fuel. Some models are capable of running on used and filtered oil or kerosene. Thanks to progressive internal structure these designs have high power and efficiency, which reaches almost 100%. All diesel heat guns are dependent on electricity. Some low-power modifications can operate on 12 V or 24 V, but most models for normal functioning 220 V required.
Electricity is used to start the burner. In addition, it is necessary for transporting heat due to the rotational movements of the fan. The burner not only atomizes fuel, but also promotes air supply. This process results in a mixture that is highly flammable. Thanks to this, the flame is stable.
Affordable price of diesel guns and the ability to effectively heat rooms without central system heating, made these designs so popular. This type equipment is capable of generating large amounts of heat, due to which the scope of its application has expanded.
Important! Guns powered by diesel fuel cannot be used to heat residential premises.
Scope of application of diesel structures:
- heating of warehouse-type premises;
- backup heating in poorly insulated facilities in cases where frosts uncharacteristic for the area occur;
- heating construction sites where heating has not yet been installed;
- organization of heating in hangars used for storing equipment;
- installation of suspended 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 light in weight, while having excellent technical characteristics. These designs are easy to use. The mechanism is started with just one press 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 operating principle of this mechanism is very simple. Before launching the gun, you just need to set required parameter. When the room temperature reaches this value, the equipment will automatically turn off. If the temperature drops below the specified level, 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 productivity of 550 m³/h will require about 1.5 liters of diesel fuel to heat this volume. Using such a gun, you can achieve quick results. According to the information stated by the manufacturers, diesel devices instantly warms up the room. The gun can raise the air temperature of +10°C in a room with a volume of 120 m³ to a level of +180°C in 15 minutes. Moreover, this speed is not the limit.
Diesel devices are safe to use. If the room is well ventilated, inhaling burnt-out air does not cause such unpleasant consequences as headaches and dizziness. High-quality designs are able to work for a long time without additional refueling. The guns are equipped with large-volume tanks, thanks to which they are able to operate continuously throughout the day.
Pay attention! The body of the structure is heated to a temperature of +30-35°C maximum. Therefore, accidental touching the gun will not cause burns.
Disadvantages of using diesel heat guns for garages
The customer reviews left about diesel heat guns for garages not only reflect the advantages of these designs. Sometimes they also contain shortcomings that were identified by users during operation of the device.
Often mentioned high level noise as a serious irritant to hearing. Although the presence of sounds is considered normal for heating equipment. Guns are not classified as 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 the devices dependent on electrical network uncomfortable. The gun really needs power for the fan and pump, and there is no way around these requirements. However, most often such structures are used in facilities where there is electrical wiring.
Among the disadvantages, the high price of diesel heat guns is also mentioned. However, it should be noted that the cost of such devices is fully justified by their reliability and comfortable system operation. Many are concerned about the cost of diesel fuel, the purchase of which is more expensive than the acquisition liquefied gas in cylinders. Although the fuel consumption of these devices is low.
How to choose a heat gun based on technical parameters
One of the most important technical parameters any heat gun is the level of its performance. In the specifications, manufacturers indicate the number of kilowatts that the gun is capable of producing in intensive operation. You can also calculate the performance level yourself.
On average, a power of 1 kW is enough to heat an area of 10 m², provided that the ceiling height does not exceed 3 m. This figure 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;
- state ventilation system;
- heat leakage (frequency of opening gates or doors);
- number of windows and doorways, their size;
- outside air temperature;
- condition of the floors;
- wind force, etc.
The price of a diesel indirect heating heat gun is not an indicator of quality. When choosing a device, it is advisable to pay attention to powerful modifications. The higher this indicator, the better. If there is a lot of heat, you can always reduce the intensity of work. And if there is a lack of heating, you will have to buy another device, which will significantly affect the budget. For efficiency diesel heater The location of its installation also influences.
Useful advice! IN large rooms It is advisable to use several heaters. Arranging appliances diagonally will be more effective than placing them along the 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 upward does not increase the heating efficiency. The most optimal position of the equipment is horizontal.
The performance of heating and ventilation equipment is another parameter that you should pay attention to. For the Ballu BHDN-20 indirect heating diesel gun, this figure is 500 m³/h. This means that the device is able to effectively heat the specified volume of air within 1 hour.
Not least important 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, which ensures a torch effect. A fan is located behind these elements. All the heat that is generated during fuel processing is supplied to the room along with the products of its combustion.
- Diesel fuel from the tank is fed into the heating filter.
- The compressor transports fuel to the injector.
- Diesel fuel is ignited by a glow plug.
- The fan installed behind the burner captures cold air from the room into the combustion chamber, where it is heated.
- The protective mesh located in the front part of the device traps the flame, preventing it from penetrating beyond the combustion chamber body.
- After heating, the air is supplied back into the room.
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The operating principle of a direct heating gun is quite simple. It is efficient and clear. However, such guns have one significant drawback. All combustion products enter the room, so it is not recommended to use the devices in living rooms. Direct heating guns are suitable for open areas and spaces with a good ventilation system.
Average prices of diesel guns for space heating (direct heating designs):
| Brand | Model | Power level, kW | Price, rub. |
| Resanta | TDP-20000 | 20 | 11890 |
| TDP-30000 | 30 | 13090 | |
| Ballu | BHDP-10 | 10 | 13590 |
| BHDP-20 | 20 | 14430 | |
| BHDP-30 | 30 | 17759 | |
| Master | B 35 CEL DIY | 10 | 21590 |
| B 35 CED | 10 | 21790 | |
| B 70 CED | 20 | 31260 |
Pay attention! Using fuel with impurities will lead to contamination of the injectors and other unpleasant consequences. Therefore, it is very important to use high-quality raw materials to avoid expensive repairs and the purchase of spare parts for a diesel gun.
Consumer opinion about diesel heat guns: reviews of direct heating designs
Users of heating equipment often share their own opinions on forums. Some reviews can be found below:
“I have long heard about the advantages of Master diesel heat guns, so when the need arose to purchase a heater, I did not think twice and relied on this manufacturer. The gun works great and is completely worth 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 on, but I don’t really need that. It takes no more than 20 minutes to warm up the room. Otherwise, I am completely satisfied with my purchase."
Sergey Kostyuk, Ekaterinburg
“I bought myself a BALLU BHDP-20 diesel heat gun. A wonderful unit. After a month of operation, there were no failures in the automation, as was the case with my previous gun. I like that the design allows you to adjust the pressure on the compressor that supplies the diesel. There is only one drawback - with a full tank the device is slightly heavy.”
Igor Samoilov, Moscow
“To heat the garage, a neighbor advised us to buy a heat gun. I spent a long time looking through manufacturers and models. In the end, I settled on the Master B 35 CED diesel gun. Excellent device, very simple. It is economical and completely easy to maintain. I've been using it for more than a year now. One refill is enough to keep the gun working all day. A 5x8 m garage warms up in 15 minutes.”
Georgy Miroshnichenko, St. Petersburg
Features of diesel indirect heating 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 combustion products that are formed during the process of fuel exhaustion are removed outside the room. A chimney is used for this. 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 pumped by the fan does not come into contact with the torch. Its heating is provided by blowing into the combustion chamber.
Average prices of indirectly heated diesel heat guns:
| Brand | Model | Power level, kW | Price, rub. |
| Profteplo | DK-21N | 21 | 29930 |
| DK-21R | 21 | 32250 | |
| DK-21N-R | 21 | 44920 | |
| Kroll | MAK 15 | 15 | 34350 |
| MAK 25 | 26 | 41180 | |
| MAK 40 | 38,5 | 44500 | |
| Aurora | TK-55 ID | 17,5 | 37400 |
| TK-80K ID | 25 | 43400 | |
| TK-240K ID | 70 | 70200 |
Useful advice! The thermal power of a device for heating a room can be determined using this formula: Q (in kcal/h) = K × V × ΔT, where Q is the required level of thermal power, 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 outside temperature and the one required to create a comfortable indoor microclimate.
To provide targeted heating, heat guns are most often used. Their feature is their high power in supplying air masses at a certain temperature. This is due to wide application of this equipment in construction industry and industry. A properly selected diesel heat gun can heat concrete, maintain an optimal microclimate in a production area, and also protect plants in a greenhouse from hypothermia in winter.
Operating principle of heat guns
The organization of the working process in any heat gun provides the possibility of activating a fan, which provides air supply. In this case, this task is achieved using the energy generated in the diesel fuel combustion chamber. The design of the unit includes a tank for filling diesel fuel or kerosene. Through a special filter, the mixture enters the sump, and then the pump pumps it into the nozzle for further use. There is usually a fan at the back of the equipment that blows cold air. air masses into the combustion chamber, distributing diesel from the nozzle into it. Ultimately, fuel combustion occurs, and the already hot masses are directed to the target object. According to this scheme it is built general principle operation of a heat gun on diesel fuel, but there are some differences in the process depending on design features one model or another. At least they exist fundamental differences in the operation of two types of such installations - with direct and indirect heating. It is worth familiarizing yourself with these types of heat guns in more detail.
Types of heat guns
Models with direct heating are distinguished by the fact that during operation they emit a combustion product directly into the operating area - this can be, for example, production premises or construction site. Modifications with indirect heating provide for the removal of combustion products outside the boundary of the working object. Obviously, direct heating has serious limitations in terms of use. In particular, such equipment cannot be used in residential premises. In exchange for this inconvenience, the user receives better performance.
In turn, an indirectly heated diesel fuel heat gun can also be used in rooms where people are located. Its design includes a mechanism for removing combustion products, which is connected to the chimney channel through a special pipe. That is, during operation, heat flows get rid of the fumes, spreading throughout the room or workshop in a relatively pure form. True, the operation of such models also requires the organization of a ventilation system in the room, since the unit will process oxygen.
Main characteristics of the equipment
Among the main technical and operational parameters of heat guns, it is worth noting power, volume of delivered air and fuel consumption. As for power, this figure is in the average range from 10 to 80 kW. For residential premises, installations with a power potential of 15-25 kW are usually purchased. In industry, more efficient units with a power of about 200 kW are used. In order to ensure future savings, the volume of the combustible mixture that will be used should also be taken into account. Thermal Flow fuel varies on average from 1 to 6 l/h. The higher the power, the more voracious the heat generator. Depending on the area of the room, the volume of warm masses that the installation will distribute is selected. This figure can be 200 or 3000 m 3 / h. For a living room, an installation with an initial volume value will be sufficient, while production facilities, warehouses and construction sites are served by high-performance heat guns.
Reviews of the BV 290E model from Master
This is one of the most popular units that provide the possibility of removing combustion products. Therefore, the bulk of users of this model are private owners who serve residential premises with a heat gun. Owners note quality work fuel filter, due to which the service life of the equipment was increased. At the same time, the heat generator has a considerable power potential of 81 kW, which makes it universal. In addition to residential premises, this has found application in agriculture and construction. As users of the installation note, it effectively copes with heating building materials, while requiring low costs. Based on the combination of operating parameters and financial investments, this is a worthy option from the point of view of multi-purpose use.
Reviews of the Gryp 28 model from Sial
This model can also be considered universal in use, but it also has many successful design features that are highly appreciated by users. For example, many note the reliability of stainless steel steel body and stable function of the pneumatic atomization burner. In addition, the unit is equipped with an integrated control board, which allows the installation to be used in automatic mode. This addition is especially significant if the diesel heat gun is designed for use in a private home. In favor of this model as a solution for household use The environmental friendliness of powder coating also speaks. Many owners also point to the ease of physical handling of the equipment. The unit can be equipped with an ergonomic trolley, making it easier to transport.
Reviews of the Mistral 85 H model from Fubag
The manufacturer Fubag is one of the recognized leaders in the segment of equipment intended for public utilities. The Mistral 85 H model in its line of heat guns is positioned as effective solution just for economic needs. The owners of this unit note the benefits of its use in construction activities, in the maintenance of greenhouse facilities, storage facilities and sheds. The combination of the performance of this model and the presence of an exhaust gas removal system stands out especially. In other words, this is a diesel fuel heat gun, which has absorbed the advantages of household and industrial units this type.
Reviews of the Jumbo 200 M model from Ballu
If a high-performance gun is required, then you should contact the Jumbo 200 M unit from Italian manufacturer climate control technology Ballu. This heat generator is designed for servicing large premises. According to the owners, the installation performs drying of warehouses, production workshops, basements, etc. in short periods of time. Of course, if necessary, the equipment can also be used as a heating system. It is important to note the reliability of the model. The fact is that most frequent malfunctions Diesel fuel heat guns are connected to a burner and a fan. The designers increased strength characteristics these parts, therefore there is practically no criticism regarding the reliability of the installation of the Jumbo 200 M. In addition to this, many emphasize the benefits of safety and limit thermostats, which increase the safety of equipment operation.
How to choose the best option?
It's not just character that needs to be taken into account intended purpose, but also dimensions and availability requirements additional functions. You can build on your strength potential and performance indicators. This will help determine the principle of operation of the gun - with or without the removal of waste combustion products. In accordance with the size of the room, the dimensions that a diesel heat gun can have are determined. It is not difficult to install this unit with your own hands, but in the case of models that provide gas removal, it may be necessary to additionally equip the structure with pipes and adapters for the chimney. It would also be a good idea to calculate in advance the need for electronic control systems with heat gun control.
Most heat generators operate in intensive mode, which increases the importance of technical measures for their maintenance. The user must primarily take care of regular cleaning and replacement of filters. In particular, the air filtration element, which filters out fibers and fluff, should be renewed every 500 hours of operation. As a rule, it changes at the end of each season. To avoid the need to run on diesel fuel as part of the power filling, you should regularly maintain the fan. In a dirty state, it complicates the work process, which increases the load on the generator. Therefore, the fan should be cleaned at least once a season.
Conclusion
In most cases, heat guns are massive structures, possessing at the same time impressive weight. Despite this, such equipment is quite practical to use and performs its tasks without any problems. True, depending on structural design Diesel fuel heat guns may have special requirements for the place of use. This mainly applies to models with indirect heating, the operation of which is possible only in rooms with organized ventilation. But we also shouldn’t forget about the specifics of using units that directly emit combustion products into environment. It is advisable to use such models outdoors or in production workshops, where the presence harmful substances will not pose a danger.
Humanity has come up with many heating units that act as heat generators. These are numerous convectors, fan heaters, infrared heaters and much more. The most powerful of them are high-performance heat guns. They are designed to heat rooms large size and are characterized by high power. The most powerful unit is a diesel heat gun. Running on diesel fuel, it generates enough heat to heat fairly large volumes.
In this review we will look at:
- Scope of application of diesel heat guns;
- Types of diesel heat guns;
- Their advantages and disadvantages.
At the very end, we will tell you about the most popular models on sale.
Operating principle and scope of application of diesel heaters
A diesel fuel heat gun is a fairly versatile unit. But not for heating residential premises. Such units are used for heating warehouses, hangars with equipment, objects 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. The burner will still require electricity to operate and blow hot air.
An interesting feature of any diesel fuel heat guns is that they are volatile - they require 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 is needed here to operate the burner and pump hot air into the heated rooms (to rotate the fan).
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 a liquid fuel heat gun is sent into the room - a powerful fan is responsible for this.
Diesel fuel heat guns are required:
- For heating warehouse premises - they generate a large amount of hot air, allowing you to do without full heating;
- As backup heat sources for heating any objects during the onset 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 installation of suspended ceilings - here you need powerful source heat;
- For heating greenhouses where any crops are grown.
At the same time, a diesel heat gun is not suitable for heating residential premises. There are two reasons here - too high performance and the need to remove combustion products.
Types of diesel heaters
Heat guns running on diesel fuel are represented in two large categories - direct and indirect heating devices. Let's see how the presented varieties differ from each other.
Direct heating heat guns
A direct heating diesel gun is the simplest source of thermal energy. It is fully equipped open camera combustion. Its heart is a pump with a nozzle, which generates a torch. There is a powerful fan behind it. The generated heat, along with combustion products, is sent to the heated room. That is, there is no separate chimney here, which is a big disadvantage.
A direct heating heat gun is harmful to human health, so its operation in an unventilated area is prohibited (despite the almost complete combustion of diesel fuel). And even where there is good ventilation, people will be constantly haunted by the smell of burning - there is no escape from it. 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, about which we'll talk further – they are safer.
Heat guns of indirect heating
Standing next to a direct-fired diesel heat gun is like smelling smoke from the tailpipe of a truck. Staying in a heated room for a long time can lead to severe headaches and poisoning. Therefore, such units are used relatively rarely. But they came up with an excellent alternative.
A diesel indirect heating heat gun is a more advanced 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 a closed combustion chamber, equipped with a combustion product exhaust system (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 pressurized air in these guns does not come into contact with the burning torch - it, as it were, blows over the combustion chamber. As for burning and soot, they go into the connected chimney and do not enter the premises. Thanks to this, indirectly heated diesel heat guns can be used in almost any conditions.
Despite the presence of exhaust of combustion products outside, for the operation of indirect (indirect) heating units, 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 heat guns. They have quite a lot of advantages:
- Ease of maintenance - there is no complex diesel engine used in automotive equipment. The heart of these units is a simple diesel heater in the form of a nozzle with a pump;
- A heat gun can have great power - there are samples on sale with a power of 10, 20 or 30 kW, as well as monstrous units with a power of up to 150-200 kW;
- The ability to warm up large rooms in the shortest possible time - thanks to the use of high-performance fans, diesel fuel heat guns are characterized by high performance;
- Cost-effective – compared to electric units, even long-term operation a diesel heat gun will not lead to huge expenses.
There are also disadvantages:
- Directly heated diesel heat guns are unsafe for humans - they release toxic components into the air resulting from the combustion of diesel fuel;
- Volatility dependence - these units cannot operate without a source of electricity;
- High cost - diesel heat guns are industrial devices, which affects their price;
- Smell of diesel fuel – with prolonged use, the smell of diesel fuel may spread in the room.
The disadvantages are not the most serious, so they can be ignored (with the exception of the first point)
Popular models
If you want to buy a diesel heat gun, then you will need information about the most popular and in demand models. Let's look at 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, its productivity is 500 cubic meters per hour. It can be used in premises for any purpose. The fuel in it burns almost completely, and there is a thermostat on board to maintain the set temperature. One of the important functions is protection during extinction - if the flame suddenly disappears, the unit will immediately turn off.
The design of the Resanta TDPN 30000 heat gun has a built-in tank for diesel fuel, its volume is 50 liters. This supply is enough for 15 hours continuous operation. 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 a sophisticated name hides an impressive 22 kW heat gun. With a fuel consumption of 2.1 kg/hour, it is characterized by a productivity of 585 cubic meters. m/hour. The heater weighs only 16 kg and is equipped with a built-in tank that holds 19 liters of diesel fuel. The heat gun is a direct heating model, so all combustion products go directly into heated rooms - use it only where there is good ventilation.
The main advantage of this heat gun is the increased strength of the combustion chamber. The diesel fuel burning in it does not cause any significant harm to it, thereby increasing its service life. Digital electronics based on a microprocessor are 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 components characterized by high strength and reliability.
Before us is one of the most powerful heat guns. Its power is 70 kW with a diesel fuel consumption of 5.7 kg/hour. Such an impressive unit was equipped with a spacious tank that holds 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 can be 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 impermissible. 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 device 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/hour.
The heat gun is built according to an indirect heating scheme and is equipped with a powerful ignition system that ensures 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, a wear-resistant body, two wheels and a handle for transportation.
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