If you own a private household, then you probably have repeatedly faced the question of the need for heating homes and utility rooms, such as garages and workshops. For this, different fan heaters are usually used, but there is no need to buy such a heater, instead you can use a heat gun, which you can do yourself.
Description of the gun at testing
The heat gun on waste oil is structurally little different from the gas variety. It has a burner that is designed to work with liquid fuel. There is also a fan in the design for pumping air. Instead of a gas valve, in this case a fuel pump is installed, it is responsible for pumping fuel from the tank, which is located under the body. This is the main difference.
According to the principle of gas heaters, mining equipment can have one of two versions, the first involves the use of direct, while the second involves indirect heating. Before you make a heat gun using waste oil, you must consider that the combustion products of the waste are much more toxic compared to natural gas.
This indicates that even in a well-ventilated room, such a heater will create adverse conditions in a short time. If the device is equipped with a separate exhaust gas and flue gas pipe, then you can use the gun everywhere. In order to ensure mobility, it is necessary to strengthen the frame with wheels to the body.
The design of the heat gun for testing
If you are going to assemble a heat gun on waste oil, then you should become more familiar with what this design consists of and how it works. The lower part is a fuel tank. The device is placed on top, it connects the fan and the combustion chamber. The latter will be supplied with fuel, while the fan will pump hot air into the room.
For ignition and transportation of mining it is necessary to use:
- connecting tube;
- nozzle;
- filter;
- fuel pump.
The motor should be fixed to the fan. In the central part of the housing, it is necessary to fix the combustion chamber. It will have the form of a metal cylinder, the diameter of which is 2 times smaller compared to the diameter of the body. When burning mining, the combustion products will be discharged by entering through the tube from the chamber. In order to warm a room with an area of 600 m 2 , about 10 liters of fuel will be needed.
Assembly
If you are going to collect a heat gun on waste oil, then its lower case must be placed 15 cm from the top. In order for the oil tank not to overheat, it should be made of a material that has low thermal conductivity. To do this, use a metal tank, which is covered by a heat-insulating material. Using thick metal, you can make the upper case, for this you should use a steel pipe.
The methodology of the work
When the do-it-yourself heat gun is going to be assembled, do it yourself in the housing:
- fan with electric motor;
- pump with nozzle;
- combustion chamber with a vertical outlet.
At the next stage, a fuel pump is installed, while from the tank it is necessary to remove the pipe through which the exhaust will be fed to the fuel filter, and then to the nozzle. The upper end housing must be covered with nets. That the fan was powered by electricity, you need to think separately. If there is no access to the network, then you can use the battery.
It is important to remember that a home-made waste oil heat gun is a source of increased danger, so safety precautions should be followed. Even if you move away from the body per meter, then the flow of hot air can have a temperature of 300 ° C. That is why this device is not recommended for use indoors, because combustion products can be dangerous.
Assembly Specialist Recommendations
A waste oil heat gun, the photo of which is presented in the article, has a combustion chamber, which is made from a pipe. It should be chosen taking into account the thickness of the walls, this parameter should be impressive. The combustion chamber must be equipped with an opening for the nozzle, which will be located on one side. In the upper part you need to place the flue pipe.
It is important to purchase or locate a fan with an impeller. This device will be responsible for the direction of air flow. When assembling, you must follow a certain algorithm. A fan should be installed on one side of the case; its performance should be sufficient for efficient operation. The combustion chamber should be located in the center, it is located in the casing. An nozzle is installed at its end.
A galvanized pipe can act as a combustion chamber, the main thing is to find a product of the desired diameter. It is sealed on both sides, and at the next stage, technological holes for the chimney and nozzle are made in it. Piezo ignition must be installed in the combustion chamber. To do this, it is recommended to stock up on a product that you can purchase in specialized stores.
The waste oil heat gun described above must have a fuel tank. As it is better to take finished products of the right size. A fuel pump and a fine fuel filter are fixed in space. The pump and nozzle are connected at the next stage, an additional filter is used, through which fuel will flow.
Conclusion
The fan is connected via a power dimmer, but you can do without this device, but it allows you to adjust the air temperature by the speed of rotation of the blades. In this case, fuel consumption will not be increased.