Gas heat gun for heating, construction and repair

Application area

Typically, heat guns are used to quickly bring the temperature to acceptable values ​​in technical, industrial premises. If we talk about domestic use, heat guns for space heating are convenient in garages, for quickly warming up houses of periodic residence (dachas), baths. In this case, you can close your eyes to the unattractive sight, noise and smell that accompany their work.

Heat guns for heating residential premises - not the most aesthetic option, but effective

Powerful units in a couple of tens of minutes heat up the air from considerable minuses - for example, from -20 ° C to quite comfortable 12-15 ° C. So you can get through the hard times. But for regular heating of residential premises, such units are of little use - there are too many minuses, and the main plus - lightness and mobility - are simply irrelevant for permanent heating.

Many dachas or bathhouses do not have constant heating. They usually have a stove or other heating equipment. But until the stove heating flares up / warms up, a lot of time passes. In order not to freeze at this time, a heat gun is needed. Its characteristics are ideal just in order to quickly heat the air in the room and not freeze until the main heat source enters the operating mode. So heat guns are good for heating temporary rooms.

View overview

The evolution of heat guns went in three main directions, determined due to the characteristics of the main energy carrier. Heaters could be kerosene, diesel fuel, gas appeared a little later. Electric heat guns have become a separate area.

Electrical

An electric gun is the most common and easy-to-use type of heat gun. The availability of electricity has made this variety the most popular. The simplicity of the design plays in favor of the electric gun. To start it up, all you need is a power connection.

It is important to determine in advance the power consumption, since there are electric heaters that need to be connected to a three-phase network of 340 volts, and they can not be connected everywhere. Typically, a 3-5 kW unit is used to heat a standard garage.

These heaters are equipped with switches that allow you to set the intensity of heating: from a simple fan to maximum power. The disadvantage of this type of heaters is the rather high cost of energy consumed, the need to install large-section wiring, otherwise there is a danger that the power grid will not withstand the increased voltage.

Diesel

These heat guns are considered the most powerful. Indeed, even very large rooms can warm up such units for a long time. The most common cable is needed for connecting to the mains, because electricity will be consumed only by the rotation of the fan, while heating is carried out by burning diesel fuel. And here comes the main problem of this type of heat guns - toxic gases.

In no case should such heating equipment be turned on in rooms with difficult ventilation. This problem is especially relevant for very efficient direct heating heat guns. In this case, the air flow is heated by the flame of burning fuel and all combustion products are thus thrown directly into the room. More often, such heat guns are used to quickly warm up open boxes with a constant supply of fresh air.

Diesel heat guns of indirect heating are somewhat safer. A combustible mixture of air and diesel fuel is injected into a special chamber, where combustion takes place, the air flow is heated from the heated surface of the chamber. It is clear that the efficiency of such a heater is somewhat lower, but this makes it possible to remove gases from the combustion chamber through a special gas exhaust system from the room to the outside.

Gas

The most modern heat guns are gas.These units also require connection to a standard electrical outlet for the fan motor to run. A relatively inexpensive fuel is used to heat the air - a household mixture of propane and butane from cylinders or from a gas network. Gas heat guns are very efficient heating equipment with an efficiency of almost 100%.

The disadvantage of this type of heat guns may be the need to connect additional gas equipment (hose, cylinder, etc.) in addition to the electrical cable. In addition, during the operation of gas heaters, there is always a danger of carbon monoxide poisoning, imperceptibly accumulating in an unventilated room. Therefore, for normal, long-term and safe operation of the device, you will either have to leave the garage door open or periodically open it.

The third option is the installation of a special forced ventilation system that provides a constant supply of fresh air. Naturally, in any case, part of the heat will constantly go to heat cold fresh air, which significantly increases gas consumption.

Advantages and disadvantages of a thermal gas gun for residential premises

Heat guns are more often used for heating non-residential premises with no stationary coolant: garages, hangars, greenhouses, greenhouses. Such a unit is often used in the construction of apartments and houses. It helps to spot-dry the desired objects: floor screed, plastering, etc.

For residential premises, they prefer to use an electric thermal analogue. Although the gas gun is much cheaper and heats up the room much faster.Mandatory approval of the device in the supervisory authorities is the main obstacle in the installation of a gas gun in apartment buildings.

Advantages of the device:

• Quickly heats the room and removes excess moisture;
• Does not emit toxic waste;
• There is an economical consumption of electricity and gas;
• There are small and mobile devices that are easy to transport and install;
• Not a high price for the device itself from 4 to 15 thousand;
• Ease of operation.

A gas gun is capable of heating 100 - 150 m2 in a short period of time. For its operation, an uninterrupted connection to electricity and a gas cylinder is necessary.

How to choose the right heat gun

If you are going to buy a gas heat gun, focus on its performance and power, comparing these parameters with the heated volume. Remember that for every 10 sq. m area requires at least 1 kW of heat. If you plan to use the unit for construction purposes, for drying plaster or installing suspended ceilings, you should choose a more powerful model.

Remember that the greater the power, the greater the noise level and the greater the gas consumption. If the task is to heat a small basement, cellar or greenhouse with a heat gun, choose small-sized models - they are somewhat similar to ordinary fans. For heating large hangars and warehouses, more efficient units will be needed. If people work in the premises and there is no ventilation, take a closer look at indirect heat guns.

When choosing a heat gun in the catalog of a particular store, carefully read the descriptions - all the characteristics and features are indicated there.And by looking at the Yandex.Market catalog, you can read the reviews. By the way, they all point to the high efficiency and unpretentiousness of these devices.

Another selection criterion is the manufacturer. If you choose between domestic devices and foreign ones, then you will not be able to give someone special preference. Russian and foreign brands make good gas heat guns, characterized by endurance and good technical characteristics. But if we turn to the ratings, they are headed by the Master trademark.

Manufacturers of heat guns in development

On sale you can find ready-made models of devices that work on used oil. They differ from home-made devices in their aesthetic appearance, high efficiency, energy intensity, and high technical characteristics.

Modern models are equipped with electric ignition and automation, thanks to which you can adjust the fuel supply, urgently turn off the device in emergency situations, set various thermal modes, and adapt the unit to work on different types of fuel.

The devices operating on used oils are produced by companies that are deployed in Europe, the USA, and Asia. We will name only a few reputable manufacturers and their top models.

Kroll: true German quality

A well-known company, founded more than 30 years ago, is considered one of the world leaders in the field of heating technology (burners, dryers, heat guns, generators).

The products of this brand, which have all the necessary Russian and European quality certificates, are safe, economical, reliable in operation, and also have an attractive design.

Master: a company with half a century of experience

A well-known American manufacturer, one of the leaders in sales of thermal equipment, especially heat generators. The technical parameters of the proposed devices demonstrate record performance in the industry, at the same time, almost all options are compact and mobile.

The MASTER WA range includes a series of economical devices that can operate on almost any type of spent fuel: motor and biological oils, hydraulic fluid. The power of the models included in the series varies from 19 to 59 kW, so you can easily choose a device for heating a space of a certain area.

EnergyLogic: waste oil heaters

The American company, which has 30 years of experience and dozens of patented innovations, pays special attention to the production of boilers, burners, heaters and other equipment that runs on waste oil. The EnergyLogic EL-200H model has a fuel pump, which makes it possible to accurately dose various types of fuel. It also has louvers for the outlet of hot air, which can have a different arrangement.

It also has louvers for the outlet of hot air, which can have a different arrangement.

The products are mainly made of stainless steel, which has excellent corrosion resistance and high temperature resistance. It uses standard parts that are widely available on the market, which facilitates operation, simplifies installation and maintenance.

Hiton: budget devices

Polish company founded in 2002.

The company specializes in the production of eco-fuel heaters, including heat generators and heat guns that run on used engine oil.

Heaters of this brand of drip type HP-115, HP-125, HP-145, HP-145R can operate on waste mineral oils, diesel fuel or a mixture of these two types of fuel, as well as vegetable oils.

General criteria for choosing the right heat gun

What parameters you should definitely pay attention to:

1. Power definition. Heating 1 m² requires one hundred watts. It turns out that for a room of 100 m² you will need a heating device with a capacity of at least 10 kilowatts. For a more accurate calculation of power, the height of the ceilings and the number of windows and doors are taken into account.
2. The presence of combustion products. Direct heating devices are suitable for outdoor construction sites. They are installed for rooms with a good ventilation system.
3. Autonomous heat guns work less than stationary ones. Stationary devices are characterized by high performance. Despite their impressive size, they are considered more economical than miniature heaters.
4. Safety. The body of the device must be resistant to mechanical damage. Sensors that are triggered when the device overheats are designed to prevent damage and fire. To increase the level of safety, manufacturers produce models that automatically turn off in the event of a rollover.
5. Quiet operation. A buzzing device that works for several hours in a row negatively affects a person’s well-being. The emitted noise level must be within reasonable limits.Units that produce a noise level of less than 40 decibels during operation do not put additional strain on the hearing aid.
6. No suspicious odors. Some heaters, the design of which is dominated by plastic parts, exude an unpleasant chemical odor. Ceramic heaters are considered the safest.
7. Easy installation and ease of use. For temporary heating of a house or apartment, it is better to choose models that do not require a chimney or ventilation system. It is enough to connect them to the power supply system.
8. Compactness. Rectangular and cylindrical heating units take up less space than diesel or gas models. Another advantage of electrical appliances is their mobility.

Description

Thermal gas guns are a kind of heater, only of a large size. They are used for residential and industrial premises. The device is indispensable in those houses where heating has not yet been done. You can successfully use it in the country. This is precisely the versatility that has made thermal gas guns extremely popular on the market for modern heating appliances.

If we talk about the principle of operation of the equipment in question, then it is simple and understandable. The built-in fan has a lot of power, it supplies air through the air gun, driving it through the built-in element, which directly heats up. Heat quickly spreads inside the room.The undoubted advantage of a heat gun is its high performance, thanks to which it is possible to evenly heat a large living room.

The gun, whose operation is carried out by supplying main gas, can be used in rooms for any purpose where there is no usual heating, since its fuel consumption is small, and the heat output is quite large. The device, in the design of which there is an additional thermostat, will allow you to adjust the operating time. Thus, the activation of the unit will occur when the air temperature inside the room drops below the permissible level.

It is important to say that there is practically no smell from the gun when using it, and no soot is formed.

Experts do not forget to repeat that in areas where there is no ventilation, it is not worth installing such equipment. Thermal equipment of this type can be used not only as traditional heating in a house that is ready for operation, but also at the time of its construction. Manufacturers have tried to offer the user a wide range of units with different technical characteristics. Among it, any user will be able to choose a unit for their own needs.

All guns on the market run on gas, diesel, electricity. There are also multi-fuel models - they need to be filled with used oil. Equipment that works on gas makes it possible to warm up even a large greenhouse in a short period, while the user's costs will be minimal. It is ideal for heating warehouses, construction sites, hangars. In addition, it can help to heat the air in semi-open and open spaces.

Thermal gas guns can be compact and stationary. Models of the first type are small in size, have a built-in handle and wheels to move the device indoors and out. The power that such a product demonstrates can vary from 10 to 100 kW.

How to make a gas heat gun with your own hands

In most cases, a heat gun is used by craftsmen as a heater for a garage. Therefore, it would be more expedient to make an indirect heating structure that is connected to the chimney system and allows you to stay indoors during its operation.

To make a gun you will need:

• two pipes 1 m long and 18 cm in diameter (body) and 8 cm (combustion chamber);
• pipe with a diameter of 8 cm and a length of 30 cm (outlet pipe);
• axial fan with round flange;
• gas burner, equipped with a piezoelectric element.

The design of the gas gun is quite simple, so it will not be difficult for anyone to make a device.

Do-it-yourself gas gun assembly technology

Before you start assembling the gun, you need to take care of the availability of the scheme. It will serve as a guide in the process of work. First you need to take a pipe with a large diameter and make a couple of holes. The size of one of them is 8 cm. An outlet pipe for heated air will be attached to this hole. The size of the second is 1 cm. This hole will be used to fix the gas hose. From a pipe with a diameter of 8 cm, you need to make a combustion chamber.

Next, the stub is prepared. It can be cut from a metal sheet. This element must bridge the gap between the housing and the combustion chamber

At the same time, it is very important not to block access so that it is possible to connect the structure to the chimney

Scheme of a thermal gas gun

At the next stage, all elements of the gas gun are assembled together. This will require a welding machine and skills in handling it. The combustion chamber, together with stiffeners, is welded inside a large pipe. From the outside, a pipe and a plug are fixed. Through this element, heated air will enter the room. It remains to install a gas burner and a fan. All elements must be firmly fixed.

The process of assembling a structure with direct heating is much simpler. Such a gun consists of a pipe, at one end of which a fan and a burner are fixed. Combustion products and streams of hot air in this case will come out from the opposite side.

Advantages and disadvantages of equipment

Gas cylinder heater has a number of advantages:

• mobility;
• reliability;
• compact dimensions.

The natural gas heater is larger, but more powerful. These types of devices are also quite economical, especially in comparison with electric heaters. Fuel consumption for space heating is not too high.

The disadvantages of gas heating devices include the fact that they burn air, and are also capable of emitting toxic products into the atmosphere, which is especially dangerous if the combustion chamber is open. Then they will go straight to the living quarters. Equipment cannot be considered safe without the installation of automatic shutdown and fuel cutoff systems.

Varieties of heat guns on gas

Gas guns for heating are of two types, depending on the fuel consumed.Some operate only on liquefied gas, which is in a cylinder - propane or butane. The second type of devices is universal and is able to work on any type of gas, because in their case there is an element that ensures pressure stabilization. The presence of this component allows you to connect the device directly to the gas line.

Depending on the type of fuel consumed by the device, it may have certain characteristics. The gas pressure in the general network varies between 0.015-0.02 MPa, so the devices are designed for different inlet pressures. But at the outlet, the gearbox mounted on the gas cylinder has an indicator of 0.036 MPa.

The differences between these types of units also affect nozzles, which may have different nozzle diameters, because the calorie content of natural and liquefied gas is significantly different. Bottled gas is three times more caloric than main gas, so if the functions of the gun do not provide for the use of main fuel, then you should not connect a heater designed only for bottled liquefied fuel to it.

According to the type of design, only two types of these devices are distinguished: a gas gun of indirect heating and direct. Consider the features of each variety.

Direct heating appliance

The design of the direct heating gas gun is not equipped with the function of cleaning the air streams from burning, so they can poison oxygen in residential areas. This is the only, but very significant drawback of these devices, which makes consumers make a choice not in their favor.

At the same time, direct heating units have an efficiency of 100% and consume a minimum amount of fuel and electricity during their operation.

The design of direct heating equipment is quite simple: a fan and a burner are placed inside the case, heating cold air flows, and the fan blows them into space, creating a powerful air stream.

Indirect heating device

The gas heat gun with indirect heating uses a ring-type heat exchanger as a heating element. The workflow of these devices differs from direct models in that fuel is first burned inside the case, and then toxic products that have been released as a result of the combustion process. Therefore, this type of guns is considered environmentally friendly and absolutely harmless to human health.

For obvious reasons, devices with precisely indirect heating are popular with consumers for heating homes. Installation of such guns is allowed even in rooms with a poor ventilation system.

However, this design also has one, but a very significant drawback - the presence of a chimney in the body, which reduces the mobility of the device and creates difficulties in its transportation.

Heat guns powered by electricity

Units powered by electricity can serve as a source of both additional space heating and the main one. During their operation, oxygen is practically not burned, as a result of which they are often used in enclosed spaces, including office and residential ones - in apartments and country houses.

Electric heat gun

They are compact in size, not too heavy, they are easy enough to carry from one place to another.Their power range is high, they can be used to heat rooms of various sizes, even fairly large areas. But when compared with gas or diesel counterparts, they are much less powerful, but they are easy to use and do not require fuel. In order to warm up the room to a comfortable temperature within just a few minutes, you just need to plug the unit into the power outlet.

The advantages of heat guns on electricity are:

• safety, reliability and durability;
• compactness, since there is no fuel tank and combustion chamber;
• mobility in moving the device;
• noiselessness during operation;
• no need for fuel;
• the ability to work from the network or generator;
• no additional service.

Among some of the shortcomings of these devices, only 2 can be distinguished, such as:

• constant access to electrical networks for the operation of the device;
• rather high cost of electricity, which leads to a significant increase in the cost of space heating.

Electric heat guns are the lightest and safest

When choosing a heat gun suitable for heating a room, you will need to evaluate various factors. All of them are quite important, so even before purchasing the device, you need to carefully consider them. The right choice of the device will help in the shortest possible time and at a reasonable cost to effectively heat the air in the room, making it comfortable to stay there.

Rating of the best gas guns

The modern market offers a wide range of gas guns. After analyzing customer reviews, the best models of 2016-2017 were selected. During the selection, the quality, safety, power and price of devices were evaluated.

The most popular models are:

1. Interskol TPG 10 is a Russian manufacturer of tools and equipment. Reliable model capable of heating up to 100 m2. For safety, the device is equipped with automatic shutdown, overheating protection and improved case insulation. It has good technical data and economic price (ipg).
2. MasterBLP17 M is a heat gun for heating residential and non-residential premises. The advantage is reasonable price, high power, build quality and low electricity and gas consumption. Equipped with electricity power adjustment from 10 to 15 kW. A good choice for small spaces.
3. BalluBHG 10 (propane) - Chinese manufacturer. Highly powerful unit has a minimum gas fuel consumption of 0.7 kg / h. The downside is that it only runs on propane. Users note the stability of work and good technical data. Able to warm the room up to 100 m2.

Types and models

A heat gun with the removal of combustion products to the outside can operate on different types of fuel. Some models work only on propane or butane. Other modifications are more versatile and allow you to choose any type of gas. This is achieved using a special pressure stabilizer. The gas pressure in the main network is 0.015-0.02 MPa, and the gas cylinder reducer ensures equalization of this pressure to 0.036 MPa.

The difference in the energy value of liquefied and natural gas also forces the use of nozzles with different characteristics. Now it is useful to see what models modern manufacturers offer for a garage and other similar premises. The MASTER GREEN 310 SG has a very good reputation. The mass of the device is 128 kg. Its dimensions are 1.5x0.628x1.085 m; thermal power reaches 75 kW.

There is another model from the same manufacturer - Green 470 SG. It already develops a power of 134 kW. The mass of the device is 219 kg. It will take 1.74x0.75x1.253 m. But this is not a record either.

The highest performance can be demonstrated by the Ballu Biemmedue SP 150B Metano model. It produces approximately 174 kW of heat. The air exchange rate can reach 10,000 cubic meters. m in 60 minutes. For the system to work, you need current voltage 380 or 400 V. Other parameters:

• current consumption 2.34 kW;
• sound volume during operation up to 77 dB;
• electric gas ignition;
• automatic shutdown in case of excessive heating;
• gas consumption 13.75 kg in 60 minutes;
• the main fuel is propane-butane;
• The burner is included in the delivery.