In winter, an electric heat gun, made with your own hands, will serve as a reliable and effective means to maintain the required temperature in almost any room, whether it be a large office or a pastry shop. It is quite mobile, has a good percentage of efficiency and low power consumption and power. You can accurately calculate how much energy is needed to heat a room.
All the charm is that a self-made heat gun can be used in various places where there is no heating system. It will be a wonderful option for heating the room where construction or repair work is underway, in large offices (more than 300 sq. M.), In assembly shops, etc. Many users do not suspect that the heat gun can actually be assembled at home. For this you will need inexpensive materials, certain skills, desire and free time.
How does an electric heat gun work?
The heat gun (depending on the design features) can run on fuels such as gas (propane, butane), electricity or hot water. Before you start assembling the heat gun with your own hands, you need to study and understand the mechanism of its operation. And the heat gun functions (it’s made by oneself or at the factory, it’s not so important) according to this principle:
- The heating element (heater, gas pipe) gains the temperature set by the user.
- A built-in fan of sufficient power drives the cooled air through the housing.
- The heating element gives the necessary temperature to the air, which is pushed by the hot stream into the room.
As a rule, a do-it-yourself heat gun, made taking into account all the requirements, has sufficient reliability and safety. It is capable of heating the air in the room to the required temperature in a short period of time.
Kinds
To understand what type of heating device you need and make a choice, we suggest that you familiarize yourself with the main types of devices under consideration:
- Electric heat gun. With your own hands, the manufactured device works from a specific power source. As a rule, the device has a power of 3 to 35 kW. A great option for use at home or in the garage. It is environmentally friendly and does not emit any combustion products harmful to humans.
- Gas heat gun. With your own hands you can make a device that will have a power of 15 to 150 kW. It connects to a gas system or cylinders. Among the shortcomings can be noted a large amount of energy consumed and the emission of combustion products, although not dangerous for people.
- Diesel heat gun. It is more difficult to make it with your own hands than gas. This installation works on liquid fuel (diesel fuel, kerosene). Has a power of 10 to 140 kW. Used only in ventilated areas.
Device assembly features
First you need to make a plan on how to assemble an electric or gas heat gun with your own hands. It should take into account the main characteristics of the device (for example, mobility, ergonomics, in other words, small size and weight). On the other hand, if you are going to make an electric gun at home, then such conditions are optional. You can choose your own parameters, the main thing is that they do not differ much from the basic standards.
It's important to know
A prerequisite for using a heat gun is the presence of a well-functioning ventilation system in the room.
This is due to the fact that during the operation of the electric heat gun, a heating element or spiral will heat up, which not only heat the air in the room, but also dry it.
The main stages of work
When choosing materials for collecting an electric gun, it is worth considering your technical skills, experience and financial capabilities. As practice shows, many craftsmen assemble an electric gun from what is at hand. There are options for how to assemble a device that is close to factory standards. Consider them:
- So, how is an electric heat gun made with your own hands? Let's start with the home option, which involves assembling the device from all the useful things that are in the garage or pantry. First of all, we need to find a pipe with a diameter of 300 mm and a thickness of 3-4 mm. If this is not possible, then a galvanized sheet of the same thickness is suitable. To work with steel, you need a welding machine. The pipe will become the body of the product.
- The next important element of the future home-made heat gun is an electric motor with an impeller. To get it, we need a Soviet-style vacuum cleaner. It needs to be disassembled and the necessary element extracted. We do not recommend disassembling new vacuum cleaners, since the circuits in modern models are quite complex.
- The extracted electric motor is installed on one of the ends of the already prepared pipe. At the other end of the housing is a structure that will heat the air blown by the device. To do this, we need a 2 kW nichrome spiral and an asbestos sheet. These components can be purchased at any market or hardware store.
- Cut the asbestos sheet into strips and make a grate out of them. We install it on the side opposite from the electric motor. On the finished grid we fix the future heater; a nichrome spiral. To create a power circuit, you do not need to install separate blocks or solder circuits. Everything is pretty simple.
- Now we need a circuit breaker, a wire with a plug and fuses. We connect a 30 amp fuse to our heater, 7 amp for the engine is needed. If there is such a vacuum cleaner, then you can use it. We fix all the elements, according to the plan, with a specially prepared tool.
The above option of assembling an electric heat gun will make it possible to manufacture a device of low power, but it will be enough to heat an apartment or office with an area of 50-60 square meters. m. With proper assembly and reliable materials, the output will be an excellent device for heating.
Build a more powerful heat gun
If the above option is not suitable for heating the room, then you can make the heat gun with your own hands more powerful. True, materials will have to be bought or ordered.
As for the assembly principle, it does not change much. You need to increase the walls of the case yourself, choose a powerful electric motor, put more efficient fuses. For a high power heat gun, a simple electric motor without an impeller is perfect. It is adjusted to the desired number of revolutions. You will also need a combination fan, but it will be harder to find on the market.
Useful Tips
Before looking for assembly schemes and buying the necessary elements for a future heat gun, we advise you to really evaluate your own capabilities, experience and knowledge in this matter. Basically, all the schemes and videos devoted to the assembly of such a device are quite simple, but the risk of making a mistake is quite large.
This is very important to understand, since a missed slip can cause not only a malfunction in the power supply system, but also a fire.
Conclusion
If you had a great desire to assemble an electric heat gun with your own hands, and for this there are all the necessary materials and conditions, then why not satisfy your interest? We recommend that you first consult with people who already have experience in assembling such heating devices.
DIY heat gun repair is quite simple and does not require special knowledge. This is also a plus. To make a more complete picture, you can refer to the videos, which explain and show in detail how to assemble an electric heat gun with your own hands. Always remember your own safety.
So, we have found out in general terms how to make an electric and gas heat gun with our own hands.