Heat guns – factory equipment and home-made device

Heat guns

Who did not dream to relax in the summer in his own country house, basking in the rays of the hot sun and swimming in the pool? And if the house is not intended for seasonal living, but permanent, how to keep warm in harsh winters? The answer to this question is not so complicated – it is necessary to arrange high-quality heating in the house. It is possible to heat a residential building with the help of various devices and technologies, far from the last place among which are heat guns.

Content

• General characteristics of heat guns

• Gas guns for heating a residential building
• Diesel powered appliances
• Electric heat suppliers
• Waste oil heat guns (multi-fuel appliances)

Do-it-yourself heat gun for home

General characteristics of heat guns

This device has a sufficient degree of power to be used for heating, ventilation and drying of a room at the same time. It is this versatility that makes heat guns extremely popular and in demand on the market for heating appliances.

The principle of operation of the device is quite simple and it consists in the fact that a powerful gun fan drives air through the built-in heating element, and then – already heated – spreads in the room.

An undoubted advantage of a heat gun can be considered a high degree of productivity, due to which it is possible to evenly heat a living room of a sufficiently large area. In addition, in the winter period of time, the heating of the entire country house can be carried out with minimal energy consumption.

The heat gun is perfect for those living quarters where there is no stationary type heating, since it has a small fuel consumption, and the heat output is quite large. The ability to choose a device with a thermostat will allow you to adjust the periods of its operation. So, the gun can be turned on only when the air temperature in the rooms drops below an acceptable level for you.

It is worth noting that heat guns practically do not spread an unpleasant odor during operation and do not form soot. However, experts do not recommend installing these devices in unventilated rooms..

The cannon can be used not only for traditional heating of a house already built, but also at all stages of its construction. For this, highly productive models are selected. Thus, a wide assortment allows you to choose the product that will meet all living conditions and the requirements of the owners of the house.

To date, all guns for heating rooms are usually divided into:

• gas;
• diesel;
• electric;
• waste oil heat guns (multi-fuel guns).

Gas guns for heating a residential building

Gas heat gun allows you to quickly heat a residential building with minimal cost. Ideal for heating warehouses, construction sites, hangars. In addition, it can be used to heat air in half-open and open areas..

The main elements of this type of device are: fan and heat exchanger. The fan is designed to form air flows, and gas burns in the heat exchanger. These functional elements are placed in a metal case, characterized by a high degree of strength. To rotate the fan, 30-200 watts of electricity will be required, which will be consumed by a gas heat gun. The ignition of such a heater can be automatic or piezoelectric.

The principle of operation of a gas heat gun is as follows: the gas, entering the combustion chamber from a special cylinder, is ignited through the burner openings with an igniter or enters the burner through a tap from a centralized network. As a result of gas combustion, the heat exchanger is heated, which heats the air flows passing through it.

To date, a thermal gas gun is presented on the market for heating devices in two types:

• compact;
• stationary.

Compact models of heat guns have small dimensions and a special handle, wheels, making it easy to move the device. The power of such a product ranges from 10-100 kW.

Stationary gas guns are connected, as a rule, in a suspended state, and the indicator of their power reaches 580 kW.

Diesel powered appliances

Any diesel heat gun has the following functional blocks:

• fuel tank;
• fan;
• burner;
• combustion chamber.

The autonomous operation of a heat gun of this type also implies the presence of an electronic flame control system, a thermostat and a timer.

Heat guns operate on diesel fuel as follows: with the help of a pump or compressor, fuel is supplied from the fuel tank to the combustion chamber. After that, the fuel is ignited and the combustion process is supported by the flow of oxygen. The room is heated by heat transfer, which is obtained between the cold air in the room and the warm air coming from the heat gun.

 

To date, diesel heaters are divided into:

• indirect heat diesel guns;
• direct heating devices.

In direct heating guns, the combustion chamber is open, and the combustion products during operation of the device fall directly into the room where it is located. That is why such heaters are most often used in non-residential premises where there is good ventilation. The power of such heat guns is about 10-100 kW.

So, indirect heating heat guns are characterized by the presence of a closed combustion chamber and a special nozzle that allows the removal of combustion products through the chimney. This type of heater can be used in a living room where people are constantly. However, it will be necessary to take care of its regular ventilation in order to compensate for the consumption of oxygen. The power of such guns reaches 85 kW.

Electric heat suppliers

An electric gun for heating rooms includes such basic elements as a fan and a heating element. A spiral or a heating element can act as a heating element. Both main elements are hidden by a robust metal housing..

Obviously, the electric heat gun only works with the appropriate power source, being easy to operate. When the device is connected to the mains, the heating element automatically heats up, which allows a high air temperature to be output at a short time. Air flow through a powerful fan.

Any electric heat gun has the following characteristics:

• Thermal power, which allows you to determine which type of heater model to choose for the available area.
• Air flow, the speed of which determines the efficiency of the device.
• Weight that is important when moving an electric gun from place to place.

Waste oil heat guns (multi-fuel appliances)

This type of heating device is more suitable for heating non-residential premises. They are economical and affordable. For the operation of such a heat gun, any type of waste oil can be used: hydraulic, motor, etc. The power of such devices reaches 20 kW.

Heat guns work on waste oil by free combustion of fuel. A special pump delivers oil to the burner bowl, where it burns, giving off heat to the air. Exhaust gases are discharged through a chimney. It is worth noting that the efficiency of heating the air in the room is also achieved due to the fact that the combustion bowl is heated.

Do-it-yourself heat gun for home

If you have the necessary skills, free time and materials, a heat gun can be made with your own hands. In fact, it is not as difficult as it seems. It is only necessary to have a good understanding of the design features of heat guns.

So, in the manufacture of the gun it is necessary to complete two bodies: the upper and lower, which will serve as a tank for a particular fuel. As for the material for the manufacture of the device, it should be characterized by low thermal conductivity. This measure makes the lower case invulnerable to heat, which is extremely important, since it will be located in the immediate vicinity of the source of elevated temperature. However, many experts advise providing a layer of high-quality thermal insulation that prevents heating of the fuel tank.

Directly above the fuel tank, the heat gun housing must be located. So, for the manufacture of a diesel device, you need a piece of a fairly wide pipe made of durable steel or metal. The pipe should be chosen depending on the wall thickness: the thicker they are, the better the pipe. The ends of the heat gun housing must be covered with a mesh or grill.

The following elements are inserted into the body of the product:

• fan;
• pump;
• electric motor;
• fuel combustion chamber;
• nozzle.

It should be noted that the casing of the device should not rest on the fuel tank, which creates a great danger for the latter. As a rule, the body rises above the tank to a height of about 20 cm. A special fuel filter is arranged between the two main blocks. It connects to the fuel tank with a metal pipe.

The fuel pumped by the built-in pump enters the nozzle, after which it is ignited. The process of burning fuel occurs in the combustion chamber, and used fuel is ignited in a thick metal pipe. Its diameter is about 2 times smaller than the heat gun body itself. This tube is mounted almost in the center of the entire device and has a vertically arranged outlet for combustion products.

Thus, it is possible to make a heat gun with your own hands, however, you will have to take into account a lot of nuances and take the process with all responsibility, since not only the walls of the house, but also the people living in it will suffer. The advantage of a self-made heat gun is that it will be quite easy to repair, since you will definitely know its structure and design features.

So, modern heat guns are presented on the market of heating appliances in a fairly wide range, allowing you to choose one or another model that is most suitable for operating conditions. Functionality, practicality, aesthetic appearance and compactness of most heat guns make them the “heart” of a residential building, warming and giving heat to others.