September82022

How to make a furnace with your own hands on working out from improvised materials

In order to ensure an acceptable temperature in your unheated garage in winter, you can build a furnace with your own hands on working out. It will not cost much, and fuel for it can be obtained at a bargain price if you try. There are several options for the construction of such a structure of varying degrees of complexity. Let’s look at some of them.

To save on heating a small utility room, you can build a furnace for working out with your own hands

The principle of operation of waste oil furnaces

Fuel oil has long been used by humans as fuel. Being one of the heaviest components of oil, this substance is used not only for fuel, but also for the production of various oils and other liquids of petrochemical production. Like all components of oil, fuel oil and its derivatives have good combustibility with the release of a large amount of heat. Used car oil must be disposed of using complex technological processes. However, you can benefit from it by carrying out combustion in a homemade furnace during testing. The drawing of the simplest version of such a design may look as shown below.

Waste oil is a very complex substance consisting of a mixture of various hydrocarbons. If you set it on fire, only volatile substances will burn out, and everything else will go to waste. Moreover, they are very toxic and it is forbidden to throw them into a regular landfill. When heated without burning, the exhaust begins to break up into many components, most of which are gaseous.Gorenje Here they are, with sufficient access of oxygen, they burn completely, leaving no harmful substances. In order for such a process to occur, it is necessary to build a furnace for testing. With your own hands, you can do this, for example, from an old gas cylinder.

The principle of operation of the furnace on waste oil

How to make a furnace with your own hands is the easiest way to work out

In order to make a garage stove yourself, which will consume used car oil as fuel, you need to find an old gas cylinder. Before you start cutting it, you need to release all the residual gas and drain the condensate. After that, the balloon is washed with water to exclude even the possibility of ignition. To disassemble the cylinder, you need to lower the gas from it by pressing the valve.

Useful advice! To make sure that the gas in the cylinder is completely absent, it is necessary to lubricate the valve with liquid soap. It is necessary to press the valve until the soap solution stops bubbling.

An example of a homemade oven made from a gas cylinder

After the gas is completely drained, the valve must be unscrewed. If this is not possible, then you will have to drill a small hole in the bottom of the cylinder, with a diameter of 10 mm. To do this, take a drill and drill in the center of the bottom, without pressing hard, so as not to get sparks. To be sure, the drilling site is constantly watered with water. As soon as the hole is ready, ordinary water is poured into the cylinder and washed. Then the water is drained and the places of incisions on the balloon are marked.

When making a furnace from a gas cylinder for working out with your own hands, the drawing of which was presented earlier, it is necessary to cut off the lower part. Its height is 20 cm . Legs are welded to it, which can be made with the possibility of adjustment for ease of installation on any surface.

Mounting dimensions of the furnace from the barrel to create with your own hands

The primary combustion chamber is made from the lower part. Waste oil will be poured into it, which in the process of controlled combustion will heat up and decompose into volatile fractions.Gorenje The upper part of this chamber is closed with a round lid made of 4 mm thick steel. It must be easily removed if necessary, since the inner surface of the camera needs weekly thorough cleaning of slags.

In the middle of the lid , a hole with a diameter of 10 – 15 cm is cut . A pipe with a length of 50 cm is welded onto it, in which a set of 10 mm is drilled. holes. The pipe must be thick-walled, at least 4 mm. In the same lid, a smaller hole is made on the side, up to 5 cm in diameter. A small tube with a flap is inserted into it. It plays the role of a neck for pouring oil and a throttle to control the flow of air mixture into the furnace.

Furnace on working out, welded from sheet metal

Since the furnace, created with your own hands, needs to exhaust the smoke without the exhaust of the fire, then another chamber is made from the upper part of the cylinder, in which the exhaust gases cool down before flying into the pipe. Inside this chamber there is a partition that prevents direct fire from entering the exhaust pipe. The incandescent gases have time to completely burn out in this chamber while they bend around this partition.

Useful advice! The height of the exhaust pipe should be 4 m. This is the optimal size to ensure proper traction. It should be strictly vertical, since any horizontal sections are capable of accumulating condensate.

Creating a furnace for working out with your own hands

Such a furnace works as follows. Through the hole in the combustion chamber, waste oil is poured into two-thirds of its volume. There it is set on fire. When the gorenje increases, the flap is covered. This ensures a more economical oil consumption and its complete burnout. The fractions that are not burned immediately, when heated, rise into a perforated pipe, where they come into contact with air, after which they ignite and burn, releasing heat in large quantities. The exhaust gases enter the upper chamber, where they finally burn out and exhaust into the pipe.

So from a conventional gas cylinder, you can make a furnace for working out. The drawing with all the details and their dimensions can be viewed in the photo.

Furnace on working out with your own hands (video)

The use of capillary technologies in the manufacture of the furnace

In addition to the simplest method of manufacturing an oil furnace described above, more advanced options are also used. One of them is a capillary furnace on working out. With their own hands, it can also be done by anyone who knows how to handle metal and tools.

Oil in such a design is not just poured into the combustion chamber, where it is in large quantities, but it is done gradually by a drip system. This method allows the oil to burn out with greater efficiency, and its consumption is reduced to a minimum. Separately from the furnace, an oil tank is installed in the upper part, which is connected to the combustion chamber of the furnace by a nozzle. An adjustment valve is installed in the nozzle, with the help of which the intake of oil into the furnace is dosed. Otherwise, the design does not differ in any special way from the simplest furnace in development. With your own hands, the drawings presented below will help to make such an assembly without difficulty.

The scheme of drip fuel supply for a homemade furnace

Organization of additional capabilities of the waste oil furnace

When making a homemade stove that runs on waste oil, electric fans can be used. With the help of them, it is possible not only to inject air mass into the combustion chamber, but also to remove hot air from the furnace, creating artificial circulation in the room, which will significantly accelerate the process of warming it up to the desired temperature. To do this, a casing is mounted around the main chamber, in which an air flow is created using a fan. It is possible to see live the work of such a self-created furnace at the testing. The video of the whole gorenje process is very interesting and visual.

Woodcutter with your own hands: drawings, photos, instructions. How to choose a woodcutter. Types of woodcutters. Features of screw, hydraulic and rack-and-pinion woodcutters. Self-assembly.

Another improvement is the manufacture of a water circuit for a homemade oil stove. The coil from the pipe is placed inside the secondary combustion chamber, where the highest temperature is observed. Or it is wound on the outside of a leaky pipe. The coil is connected to the supply and return pipes of the heating system. When the liquid is heated, its natural circulation occurs in all batteries. It is possible to make such a furnace on working out with your own hands, the video of which reflects its effectiveness well, in one day.

A more complex design of the furnace is being worked out with a water circuit and a boost fan

Useful advice! If necessary, a centrifugal pump can also be installed in the system, which will allow more efficient use of the energy of heated water. It will not have time to cool down much during the passage of the entire pipeline.

Advantages and disadvantages of oil furnaces

As with all homemade structures, oil stoves have the main advantage – it is cheapness. They can be made from old parts that have been lying around in the corner of the garage for a long time, waiting for their application. The second advantage of these devices is the fact that they actually work on cheap fuel that nobody needs, which is not difficult to get. These furnaces are able to heat a small room very quickly, since they use an open fire.

Waste oil furnace chamber — inside view

Turning to the minuses, it should be said that such homemade structures do not pretend to be permanent and main sources of energy. They only help to warm the utility rooms. So, let’s list all the disadvantages of oil furnaces:

inability to use inside residential premises;
an increase in the size of the combustion chamber does not lead to an increase in the power of the device, since the efficiency decreases;
it is impossible to extinguish the furnace with a fire extinguisher with powder, since the mixture simply explodes from the incandescent parts of the furnace;
it is impossible to precisely regulate the intensity of heat exchange;
there is a risk of an explosion when working out boils.

An example of a furnace on working out, which can be made with your own hands

Creating a furnace for working out with our own hands, we wonder where to get fuel for it. This issue can be solved in the simplest way. You just need to negotiate with the owner of one of the car services located near your house. Perhaps he will be happy to sell you at a low price this fuel that is valuable to you, but has no practical use for him.

Useful advice! When operating a furnace with an open combustion chamber, violations of fire safety rules should not be allowed.

This can lead to consequences, the losses from which will surely exceed all the benefits from such a furnace.