Do-it-yourself long-burning stove from a gas cylinder. A stove made from a long-burning cylinder or with increased heat output. A stove made from a gas cylinder with an air jacket.

To heat a dacha or garage, it is quite possible to make a stove from an ordinary gas cylinder.

The advantages of a gas cylinder as a manufacturing material are as follows:

optimal shape ensuring high efficiency;
high-quality and durable material, designed for high pressure and temperature;
low price.

The most suitable shape for a stove firebox is a sphere. The chamber of this shape is easy to clean, and the uniform heat distribution increases the efficiency of the entire device. Taking into account the fact that the fuel chamber must have at least two opposite openings: for adding fuel and removing heat, the optimal shape of the firebox in the form of a sphere is somewhat elongated and turns into a cylinder with rounded ends.

This is exactly the shape of a regular gas cylinder, widely used in everyday life. Due to the fact that waste products are made of durable and high-quality steel, they are often used in households as the basis for a variety of fixtures and devices. They are used to make homemade barbecues, smokehouses, hand rollers, feeders and drinking bowls for livestock, and even homemade compressors and boilers.

Homemade fireboxes made from gas cylinders are also on this list of examples of the appearance of a “second life” for a used product. The cylinder may end up on the farm after it has been used for its intended purpose, or you can purchase an empty container; the price for them is quite affordable.

Types of stoves

The types of stoves that can be made from an empty gas cylinder are determined by its shape. Thus, the cylinder is suitable as a housing for the following heating devices:

. The main advantages of a potbelly stove are its small size, mobility and safety, determined by the simplicity of its design. It is ideal for rooms in which heating communications have not yet been installed and it is possible to take the stove chimney outside. The potbelly stove ignites and heats up quickly, and its small shape allows it to be used in many situations. Unfortunately, the design of the potbelly stove is such that with frequent and prolonged use the stove body burns out, no matter how thick it is, so it is not recommended to use the potbelly stove often;
. Somewhat more difficult to make than a potbelly stove. This type of stove uses waste oil as fuel, which is very cheap. And, since the very idea of making a stove from a gas cylinder is caused by the desire to save money through the alternative use of waste material, such a stove will not only save on shell material, but also constantly save on fuel. Since not only the oil, but also its vapor is burned, there is practically no waste from using the oven. However, due to the high fire hazard and toxicity of the fuel itself, such a stove is not suitable for use in residential premises;
Rocket oven. Compared to other handicrafts, they are larger and more difficult to manufacture. The advantages include the continuity and duration of fuel combustion in it. Does not suffer from long breaks in cold weather. The disadvantages include some inconvenience when regulating the air supply and the difficulty of controlling heat transfer when the furnace is fully heated. A disadvantage can also be considered a certain complexity in manufacturing such a device; compared to other home-made stoves, it will require more materials and labor;
. Very simple in design, its classic design does not have any doors . A definite disadvantage is that before the start of operation it is difficult to determine the optimal size of the gaps through which oxygen is involved in the combustion process; when using certain types of fuel, pyrolysis gases do not have time to burn out and the stove can begin to smoke heavily. Also, this type of furnace, as a rule, has a low initial heat transfer, which is partially compensated by the duration of heating after one load.

Used products are made of durable and high-quality steel; they are often used on the farm as a basis for a variety of fixtures and devices.

Preparation stage

To be used as a housing for a furnace, the cylinder must meet the following number of parameters:

The cylinder must be all metal, composite materials are not suitable - they are not heat-resistant and are quite explosive;
The volume of the gas cylinder must be at least 12 liters. Stoves made from smaller volume cylinders are not economical due to the low ratio of volume to surface area. The fuel in such a stove will not burn completely due to high heat loss. Cylinders with a volume of 12 to 27 liters are suitable for the manufacture of small stoves for heating small rooms from time to time. The most suitable volume of a gas cylinder is 50 liters. Stoves of this size are suitable for long-term operation and use any fuel efficiently;

Industrial pneumatic cylinders (the common size is 40 liters, smaller sizes are used for helium) are not suitable for converting them into any heating devices using household means. They have very thick walls, and they themselves are heavy and bulky; their shape is not suitable for use as a firebox - they are too elongated in length.

Making a furnace

To make a stove from a gas cylinder you will have to cut it and for this the product must first be prepared:

Even if you are sure that the cylinder is empty, you should fully open the valve or valve before starting any actions;
After the remaining gas escapes through the valve, it must be dismantled. This should only be done using hand tools; sawing off the valve using cutters or grinders is unsafe - the remaining gas may detonate. To remove the valve, you can simply knock it down with a sledgehammer or saw it off with a hand saw. The safest thing to do is unscrew the valve, but this is not always feasible at home;
Water is poured into the hole formed after dismantling the valve in order to force out the remaining gas with its volume. This action is not very convenient; you then need to drain the water from the heavy cylinder. Therefore, before filling the container with water, it is worth considering the possibility of conveniently removing water from the workplace. You can simply rinse the inside of the gas cylinder with water, but this does not always ensure complete disposal of the remaining gas. There were cases when, even after repeated washing with water, the remaining flammable gas ignited when cutting metal;
To make it easier to work with the cylinder so that it does not roll around, it is recommended to provide supports to keep it horizontal. Or it is simply dug into the ground to a certain depth, which fixes it in a vertical position.

Further manipulations with the future firebox depend on the design of the furnace.

Potbelly stove from a cylinder

For a potbelly stove, you can use products of relatively small volume:

Places for cutting are pre-marked using a marker. It is necessary to determine a place for laying fuel, holes for the air duct and chimney;
A hole is cut in the side of the cylinder, suitable in size for storing firewood in the future. The cut out part can be used as a door by first polishing its edges;
A frame for attaching the stove door is made from steel corners. This frame is welded to the wall of the gas cylinder;
The door is screwed to the frame using bolts, to ensure a tight fit of the door, it is recommended to use hinges;
Next to the door should be welded or bolt the device for closing the door (latch);
A cast iron grate (grid) is welded to the bottom of the firebox to maintain solid fuel. To hold the grate itself, steel corners can be welded from the inside;
A hole is cut in the body below the bottom of the firebox for air ducting and removing ash from the stove;
It is required to make a box from sheet steel without one wall and a top part. This box is welded to the opening of the air duct; ash will be removed with its help;
A damper is attached to the welded box with the ability to regulate air supply;
A hole for the chimney is cut on the side of the door or on the side opposite to it. The chimney pipe must be curved, elbow-type, so that the heat does not escape too quickly;
The pipe is attached to its hole in the cylinder or to a steel ring pre-welded to the neck;
The legs are welded to the bottom of the gas cylinder.

The chimney pipe must be curved, elbow-type, so that the heat does not escape too quickly

Bubafonya stove

The stove with the name bubafonya refers to long-burning stoves, which is ensured by pressing a kind of piston onto solid fuel, which increases the efficiency of the stove. With this combustion method, pyrolysis gases are formed and burned, which additionally heat the furnace.

Making a bubafon stove is no more difficult than making a potbelly stove:

The top part (top) is cut off from a 50-liter cylinder. Clamps are welded to the cover, which should hold it on the body;
To make a piston, you need a metal disk with a diameter slightly smaller than the diameter of the inner circumference of the cylinder. It is necessary to ensure that the piston can move freely inside the housing, and the size of the side gap is sufficient for the release of warm gases;
To ensure the supply of oxygen to the lower compartment of the furnace, you will need a pipe, the diameter of which must be sufficient for the passage of air flow supporting the combustion process. The height of the pipe should be 8-12 cm greater than the height of the body;
There should be a hole in the center of the piston disc, the diameter of which is equal to the diameter of the pipe;
Steel sections are welded to the inside of the piston disc, converging in the center and diverging towards its edge (like flower petals). This will not allow the disk to come close to the fuel and thereby block the oxygen supply;
A long pipe is inserted into the hole of the disk and welded hermetically. To prevent the disk from deforming under the influence of high temperatures, it is recommended to make stiffening ribs on the outer side of the disk;
In the center of the previously cut cylinder cap, you need to make a hole with a diameter slightly larger than that of the piston pipe used. This is done so that there is a gap between the lid and the pipe, allowing more oxygen to be drawn in for complete combustion of pyrolysis gases;
A hole is made in the cylinder body itself just below the lid for subsequent attachment of the chimney. The diameter of the chimney pipe must be at least 10 cm. The chimney must have at least one elbow, its length must be at least 2 meters; the longer the chimney, the better the draft.

The height of the pipe should be 8-12 cm greater than the height of the body

Rocket stove

The so-called rocket stove represents the top of the hierarchy of heating devices made from empty gas cylinders. Its name reflects not only the characteristic sound when the stove is not operating correctly, but also the efficiency achieved through the maximum use of burned fuel.

High efficiency is ensured by burning both the fuel itself and the pyrolysis gases released during combustion. The fuel material is loaded into the furnace located at an angle and burns, gradually falling down. The firebox is connected to the body. Through the blower, oxygen enters the combustion area in the furnace body, ensuring the process of additional combustion of pyrolysis gases.

The rocket stove consists of two main parts: a body made of a cylinder and a loading box where fuel is loaded. For manufacturing, among other things, you will need a welding machine and, accordingly, skills to work with it, since the manufacturing process of the furnace is completely welding.

Case manufacturing:

The top is cut off to create a hole. diameter about 250 mm;
The resulting hole is closed metal disk up to 5 mm thick;
The upper part of the cylinder is cut off at a level of 5-6 cm below the previous cut, resulting in a lid.
A strip of sheet steel approximately 6 cm wide is welded to the resulting lid., so that you get a kind of straight “skirt”;
Holes are drilled around the circumference of this skirt at the same distance from each other. Bolts will then be screwed into them;
An insulating sealing gasket is glued to the lid, for example, from a high-quality asbestos cord, but complete impregnation of this gasket with glue should be avoided so that it does not lose its elasticity;
After this, the cap with a gasket is put on the cylinder, is pressed down with a load and holes are drilled through in the cylinder body through previously made holes in the skirt;
The lower part of the cylinder is cut off at a height of 8 cm from the ground, a hole is cut from the bottom of the cylinder to accommodate the inner part of the flame tube in the body.

The main elements of the firebox are made of pipes with a square section of 15x15 cm:

chamber for air intake and cleaning the furnace from ash (blower),
combustion chamber,
flame tube.

These elements are welded together so that the part into which the fuel will be loaded is located with respect to the body at an acute angle of up to 60°. The blower and chimney are located approximately on the same line at the bottom of the structure, while the flame pipe is inserted into a hole made in the lower part of the body.

A door with a latch is attached to the outer part of the blower to control the air supply. A lid is also made for the upper part of the combustion chamber, which fits quite tightly to the walls of the loading hole.

In the center of the body, two round pipes are placed vertically, one inside the other, with a diameter of 7 to 10 cm and 15 to 20 cm, respectively. A flame tube is welded into a pipe of smaller diameter. The space between the vertical pipes is filled with non-flammable filler that has the ability to retain heat (expanded clay, vermiculite).

The blower and chimney are located approximately on the same line at the bottom of the structure, while the flame pipe is inserted into a hole made in the lower part of the body

Operating rules

Most waste gas cylinder stoves are not suitable for permanent residential use. Their safety level does not really meet fire safety requirements.

When placing such devices, it is important to try to place them on a level surface to prevent the possibility of falling. If the stove is placed on a surface that can catch fire, then it should be placed on mineral cardboard or a sheet of roofing sheet.

When using products indoors, it is necessary to take into account that due to the fact that the firebox body is made of metal, the air in the room “burns out” quite quickly. Therefore, it is vital to ensure regular and sufficient ventilation of the premises.

If it is possible to choose which air cylinder will be converted into a stove, then it is recommended to choose a product not with a valve, but with a valve, which can then be used as an air supply regulator and thus control the power of the furnace.
For the convenience of subsequent cleaning of the stove chimney, it is recommended to make it composite, and for better control of the condition of the chimney, you can attach an “inspection” to it - a component of the chimney system that allows you to quickly remove condensate.

If the oven is used for cooking food, then one important problem arises. There must be a surface where food will be placed. At the same time, the heat flow in this place should be sufficient for high-quality cooking.

During the warm season, intense heating during cooking can create unbearable heat in this place. In this situation, it must heat the food properly without getting too hot.

If, first of all, the tasks of heating the room are important, then other features come to the fore. Here the following are of particular importance:

long burning;
fuel economy;
high requirements for fire safety.

The last requirement plays a vital role in the operation of various types of furnaces. However, when heating, the stove, in fact, can be left without direct supervision for a long time. And this greatly increases the risk of an accidental fire. Another important issue is the possibility of legalizing a self-made stove. This process is not simple or easy.

Cylinder selection

The first and main requirement is that the cylinder must be made of all metal. If you take a composite one, it may not withstand constant high temperatures. A household five-liter cylinder is too small. It heats up quickly, but cools down just as quickly.

The amount of heat loss here is very large, and the use of additional thermal insulation is not justified. Two other types of cylinders - 12 liter and 27 liter - are suitable for use as an additional stove “just in case”. The dimensions and efficiency of their operation allow them to be stored in a city apartment.

The best option would be to use a regular fifty-liter propane cylinder. Its dimensions allow it to produce heat efficiently. It has two main varieties:

with valve,
with valve.

The first option is more practical. Its use allows you to regulate the flow of air, thereby regulating the intensity of the combustion process.

There are also 40-liter industrial gas cylinders. They are durable, made of strong metal, but are heavy and bulky and too narrow.

Pyrolysis

When talking about stoves, one cannot help but recall pyrolysis. When burning, the fuel breaks down into lighter and simpler chemical components, which, in turn, burn better and burn almost completely. Without the use of pyrolysis, it is almost impossible to build an effective structure. It allows you to burn everything that can burn completely. Another important feature is that this process does not occur immediately, but is multi-stage.

What implications might this have for the design? This process requires a certain amount of time. For pyrolysis during the combustion of machine oil, 10 - 15 centimeters are required. When burning wood, the distance will be greater - about one meter. This imposes requirements for the length of the cylinder. The gas flame path must be of sufficient length so that the pyrolysis products can burn.

There are usually three main pyrolysis zones:

main combustion zone;
primary pyrolysis zone;
zone of final combustion of pyrolysis products.

This must be taken into account when designing.

Sauna stove from a gas cylinder - diagram

Balloon oven options

There are several main options for such designs:

The simplest of them is. It is customary to use a 12-liter or 27-liter cylinder for it. For efficient heating, it is advisable to use a horizontal elbow for the chimney. The most difficult part is attaching the door for the opening through which the fuel is loaded. Convenient for storage in a city apartment. It is short-lived due to the gradual burning out of the walls of the cylinder.

Special long stoves. They work as . The basic principle of operation is that the fuel burns continuously with only a small amount of fuel. Pyrolysis products are then formed, which burn in a separate combustion chamber. To ensure combustion efficiency, it makes sense to preheat the air that enters the furnace. The oil garage stove requires vertical installation. Used engine oil is used as fuel. Adjusting the combustion temperature The design looks something like this.

"Rocket". Its name comes from the fact that it sometimes makes a noise similar to the roar of rocket engines. However, this can happen if the oven is not adjusted. A properly functioning structure makes only a quiet rustling sound. Its design is not particularly complicated and a 50 liter gas cylinder is very convenient for its manufacture. This type has many important advantages. They heat the room well, are economical to use, and relatively simple to manufacture. They can be adapted to heat a bed. But, on the other hand, they must be done accurately and carefully. If the furnace is poorly adjusted, it will be ineffective. The fuel is firewood (usually thinly chopped chips or branches). It comes through a pipe from above. Air enters through the hole at the bottom left. Combustion occurs in the lower pipe. The blowing here is very strong. The combustion products rise upward and exit through the pipe on the right, heating the room. Let us tell you what a stove called “bubafonya” is. It uses a special principle of working with pyrolysis products. The combustion chamber is located vertically. Pyrolysis products are contained by a special metal “pancake”, which limits the combustion space from above. The efficiency of this design can reach eighty-five percent. This stove is not designed to use wet fuel. Humidity should not exceed 12 percent. The stove is very economical in fuel consumption. Convenient to use for heating garages or other utility rooms.

A rocket stove can be made not only using gas cylinders, but also using barrels, cans and other means.

Self-production of a balloon furnace

We take a medium or large cylinder, but it should not be too small. In addition, we will need:

a small curved pipe (diameter approximately 15 cm);
a long pipe of the same diameter for making a chimney;
material for making the door handle;
door hinges;
box needed for making a ventilation hole;
long rod to regulate air flow.

Tools:

angle grinder;
welding machine.

The furnace manufacturing process begins with emptying the gas cylinder:

To do this, in a well-ventilated place, open the cylinder valve and let the gas escape. But that is not all. Then you need to unscrew the valve and release the gas. Then you need to fill the cylinder with water, which will finally displace the gas from the cylinder.
Next, cut off the top of the balloon. The resulting edges need to be sanded. We mark a hole in the side for the door and on the opposite side for the chimney. Next you need to cut out the door and attach it in place on the hinges. It will be closed using a special latch. The cut is made using an angle grinder.
Next, a hole for the chimney is made in the same way and a pipe that was prepared in advance is welded. The chimney pipe is made by welding two pieces of pipe: a curved one and a long one.
Next, a third hole is made - the air duct. It is made below the door. This is a rectangular hole 5 by 5 centimeters. A rectangular box without a lid is welded there. There, a piece of metal is welded onto the central axis. By rotating it using a small lever, you can adjust the airflow for the oven.
In order to get rid of gaps on the door, small steel strips can be welded around the perimeter. This completes the furnace manufacturing process.

A potbelly stove is a small homemade metal stove that became widespread in the first half of the 20th century. Later, with the advent of centralized heating, its popularity fell. The second wave of its mass use occurred during the Great Patriotic War, and the third - in the 90s of the same century, for heating country houses. Today, potbelly stoves are more often used in garages or utility rooms. In their pure form, without modifications, they are uneconomical: they “eat” fuel like bourgeois, and if you stop “feeding” them, they quickly cool down. The easiest option to make is a potbelly stove made from a gas cylinder. The body is already ready, you just need to cut holes for filling the fuel and ash pan, attach doors to them, weld the legs and the chimney (diameter 150 mm and no less).

The cylinder in such a stove can be placed vertically or horizontally. It heats up quickly, but also cools down immediately after the fuel stops burning. However, in order to quickly bring a garage or cottage out of sub-zero temperatures or to heat it in autumn/spring bad weather, this is an excellent option.

Which cylinder should I take for the stove?

It is clear that a gas cylinder will be used for the housing. But they come in different sizes. The smallest 5-liter ones should not be used for making stoves: the volumes are too small and they won’t be able to heat anything. There are also 12 and 27 liter cylinders. They will make a low-power unit for a very small room: you cannot get more than 3 or 7 Kilowatts of heat from them. In principle, this can be a hiking option, but the weight will be considerable.

The best option for a stationary stove in a garage or country house is a 50-liter gas cylinder. Height 850 mm, diameter - 300 mm. The volume and wall thickness are large enough for any fuel to burn. At the same time, it is not very heavy, you can work with it alone. A potbelly stove made from a 50 liter propane cylinder is the best option.

Industrial 40-liter gas tanks have approximately the same volume, the diameter is smaller - 250 mm, the height is larger, and the walls are thicker. It will be more difficult to make a stove from a freon cylinder, with the same power that can be obtained from it: the mass is large, and it is long. By shortening the height to about 700 mm, you can make a small, thick-walled potbelly stove, which will take a little longer to warm up, but will also “keep” the heat a little better.

Important! When working with gas cylinders, follow safety precautions!

How to safely disassemble a gas cylinder: watch safety precautions in this video.

What and how to make doors from

Doors for potbelly stoves can be purchased cast. You will need a small height for the ash pan and a larger one for storing fuel. There are ready-made blocks - a flow door with a blower in one design. In this case, a frame made from corners welded to size is welded into a hole cut to size, and the casting is already bolted to it. To prevent air from blowing out of the cracks, a small edge is welded around the perimeter of the cutout under the door - a 1-2 cm strip of metal.

You can not buy doors, but use a cut piece of a balloon wall. Then you will need some kind of hinges or replacement parts. It’s clear with the hinges: mark the places, weld them. There is an interesting version of homemade loops: several links of a thick chain.

A latch will need to be welded to such a door.

With grates or without?

In the simplest version, no grates are provided. If the cylinder is small or stands horizontally, then selecting a part inside is problematic. In this case, the design of a potbelly stove made from a cylinder is quite simple: the body is placed on legs, one door, and a pipe for connecting the chimney is welded in the upper part. All. The whole stove.

The photo above shows examples of such simple ovens. In order to improve heat transfer, metal strips are welded to the outside of the body. In the upper part, in addition to the smoke pipe, there is another outlet - a lid is installed on it, and this outlet is used as a stove for cooking food and heating tea.

If you still want to make grates in a potbelly stove from a horizontally installed cylinder, you will have to weld a tray for collecting ash from below. Below there is a drawing and photo of the practical implementation.

In vertical versions of potbelly stoves made from a cylinder, grates are most often installed. In this case, it is easier to allocate space. Usually, thick reinforcement bars are welded inside: a cast iron grate of a suitable size is difficult to find. But this option is bad because the reinforcement quickly burns out, and repairs are complicated: remove the old reinforcement and weld in a new one. You can weld pieces of thick corners or reinforcement inside (as in the photo), separately weld grate bars from the reinforcement and lay them on the corners.

This video tells you how to make a stove from a gas cylinder with your own hands - the grates are made of reinforcement.

We improve heat transfer

The biggest problem with potbelly stoves: inefficient heat consumption. Most of it literally flies into the chimney with flue gases. This disadvantage is effectively combated in top combustion furnaces with afterburning of flue gases according to the type (also, by the way, can be made from a gas cylinder) and.

A variant of a potbelly stove made from propane cylinders with secondary combustion - the efficiency is higher than that of “conventional” models.

Another way to improve heat transfer is to make the chimney longer, thereby increasing the amount of heat that will remain in the room. When designing such a broken chimney, it is better to avoid horizontal sections, and even more so areas with a negative slope.

This gas cylinder stove runs on wood. We increased heat transfer by making a long broken chimney

Another option to use the heat of flue gases is to weld a vertical cylinder-smoke pipe to a horizontally located cylinder-housing. Due to the larger area, heat transfer will be higher. You just need to create good draft so that the smoke does not go into the room.

You can do it the way they do in sauna stoves: put a mesh around a metal pipe and pour stones into it. They will take heat from the pipe and then release it into the room. But. Firstly, until the stones heat up, the air will warm up slowly. Secondly, not all stones are suitable, but only the round ones that are along the rivers. Moreover, they are uniformly colored without inclusions. Others cannot be filled in: they can explode from high temperatures no worse than a fragmentation shell, or emit radon, which is very harmful in significant concentrations.

But this solution also has advantages: firstly, the pipe will not burn. The stones produce even heat. Secondly, after the furnace goes out, they will maintain the temperature in the room.

Often you need to quickly heat a room. To do this, you can use a regular fan that will blow through the body and/or pipe of the furnace. But the same idea can be implemented with a stationary version: weld through pipes into the potbelly stove cylinder in the upper part. On one side, attach a fan to them (heat-resistant, preferably with several speeds, so that you can regulate the temperature).

Another option that allows you to achieve active air movement along the walls of the case and not use a fan: make a casing around the case at a distance of 2-3 cm, but not solid, but with holes at the bottom and top. Metal sauna stoves also work on this principle.

One of the options for such a casing around a horizontally located cylinder is visible in the photo below. Through the gaps at the bottom, cold air located near the floor is sucked in. Passing along the hot body, it heats up and comes out from above.

The principle is not new, but it is no less effective. Look at the photo below to see what the finished stove looks like with such a casing.

Here is another implemented casing, around a potbelly stove made from a horizontally located cylinder. Please note the non-standard door fastening.

A homemade boiler from a gas cylinder for water heating can be made using the same principle: weld a water jacket around the cylinder and connect it to the radiators. Just don’t forget that the system must have an expansion tank with a volume of 10% of the total displacement.

You now know how to make a potbelly stove from a gas cylinder and how to improve it. Watch another video about an interesting option for a combined stove for a summer house or garage made of brick and a gas cylinder.

The Bubafonya stove is a long-burning stove. The operating principle is based on the slow burning of one fuel pack. Combustion in this design does not occur as in traditional ones - in the entire volume of the fuel chamber, but goes from top to bottom, which allows you to achieve a long operating time from one load of firewood or other solid combustible materials.

This combustion is due to the design features. Air is supplied to the upper part of the firebox in small quantities, in the center of the filling through special holes in the middle of the piston, and exhaust gases are discharged from its edges in a gap with the walls of the fuel chamber.

The air supply is regulated by a damper installed at the upper end of the supply pipe. Optionally, the stove can be equipped with an additional damper at the exhaust gas outlet for more convenient adjustment of the draft force. As the fuel burns, the piston moves down the chamber, pressing down the combustible materials, this prevents the fuel from burning throughout the entire volume of the firebox and combustion occurs at a very slow pace.

With minimal air leaks, the stove goes into smoldering mode. Burning in some versions reaches sixty hours or more. The peculiarity of “Bubafoni” is that everyone can choose the optimal design option that is necessary for them. This stove has many upgrades and additions.

Advantages:

Flaws:

Impossibility of working on low-quality sintered coal.
The need to use fuel of approximately the same moisture content in one load to avoid the piston hanging in the firebox.
Low thermal power in very long burning mode.
Impossibility of reloading fuel until complete extinction.
Difficulty cleaning from combustion products (Solved by additional upgrades).
Formation of a large amount of condensate in the chimney during operation.
Low heat transfer area in the basic design.
The need to have some ignition skills to avoid smoking.
Low service life of models with a firebox made of thin-walled metal.

Bubafonya from a barrel

Most often, barrels or cylinders are used as the basis for making a stove. Options made from ordinary gas cylinders have the longest service life due to the thickness of the walls.

Such a stove can withstand difficult temperature conditions of use longer and does not burn out. Instead of a cylinder, you can use any pipe with a wall thickness of more than one and a half millimeters.

Various steel barrels are excellent for making Bubafoni. An important point is that the seam of the barrel must be welded and in no case soldered. Soldering does not withstand high temperatures and inevitably breaks down after the first use.

Two-hundred-liter barrels of fuel and lubricants are best suited. It’s even better if this barrel is from the times of the Soviet Union - the walls of such containers are much thicker than modern ones, and the quality of the steel itself is higher.

Before making your sample, you should decide on the size and basis for the future stove based on what needs to be heated, in what climate zone the heated room is located, what temperature needs to be maintained in the room.

For an ordinary potbelly stove, the square-cube law applies. The same applies to Bubafon. The essence of the law regarding stoves is that the size of the fuel chamber of a stove should only be increased to a certain size.

A further increase will lead to excessive fuel consumption, since the surface area giving off heat increases in the square, but the volume of the combustion chamber will increase in the cube, i.e., much more fuel will need to be loaded, and the heat will be received disproportionately to the increase in the load.

For “Bubafoni” this law applies only in terms of diameter; any height can be made. It depends on how much continuous operation time is required and is not related to power. To maintain a comfortable temperature in winter in utility rooms, change houses, greenhouses, garages, from eighty to one hundred and fifty, two hundred watts per square meter of room area is required.

If the ceiling height is non-standard, then you should proceed from the volume of air heated by the stove. In this case, thirty - sixty, eighty watts of thermal energy should be allocated per cubic meter. The volume of air is calculated simply - you need to multiply the area of the room by its height in meters.

The more insulated the walls, ceiling and windows of a building are, the lower the furnace required and the less burning intensity. The power of the unit can be calculated using the formula e=M*e, where M is the mass of the fuel loaded, and e is the specific thermal output of the type of fuel being loaded.

To make Bubafoni you will need the following tools:

And materials:

Barrel or cylinders, or sheet steel with a thickness of at least one and a half millimeters.
Pipes of various diameters.
Channels or angles made of steel.
Mineral wool (optional).
Ball-type condensate drain valve.

Making “Bubafoni” should begin with choosing a base. The most common option is cylinders and barrels. Below we will consider an example of assembling a device from a propane cylinder:

"Bubafonya" can be subjected to various upgrades:

To increase heat transfer, you can weld ribs of any size and shape to the furnace body.
To improve convective heat transfer You can wrap the body with a profiled sheet.
To reduce condensation, insulate the vertical section of the chimney with mineral wool.
Instead of the adjusting cap, you can install round magnet of suitable size.
To organize air intake from the street, you can put a corrugated air duct on the supply pipe and lead it into a hole in the wall of the building. The corrugation should not interfere with the free movement of the piston in the chamber.

This stove can be equipped with a water jacket and connected to radiators. To do this, you need to weld a sealed casing to the full height of the body and cut into it two inch pipes for water distribution fittings. The casing should be made with a gap of 4-8 centimeters to the furnace wall. The difference in the height of the exit and return should be at least forty centimeters.

Furnace fuel

Almost any solid fuel is suitable for Bubafoni:

Standard firewood or logs.
Fuel and .
High-quality coal that does not form caking combustion products.
Waste fiberboard and chipboard.
Brushwood, straw.

When firing a furnace, preference should be given to less ash fuel. This will allow you to clean the unit less frequently and will help avoid the piston getting stuck in the firebox during the combustion process.

This is what “Bubafonya” looks like from the inside when the fuel in it is smoldering

Operating rules

In order to light the stove, perform the following operations:

Load the chamber with fuel just below the bottom edge of the chimney.
Place sawdust or wood chips and paper in the upper part. You can add a small amount of used motor oil or special lighter fluid.
Light the top layer.
Place the piston into the firebox.
Close the lid.
After making sure that the combustion process has started, adjust the air supply depending on the required power.

In case of attenuation, you need to repeat the procedure. The stove should be cleaned when a layer of ash accumulates more than twenty-five centimeters.

Do not use volatile liquids (gasoline, ether, alcohol, etc.) for ignition.
If the fuel has different moisture content, it should be sorted to avoid piston jamming.
When the required room temperature is reached, the air supply should be reduced to save fuel.

Factory-made steel and cast iron stoves are quite expensive to use for heating a garage, country house, or outbuildings. It is much cheaper to make your own stove from a long-burning gas cylinder. To do this, you will need a drawing of a heating device, an old gas cylinder, a welding unit and some additional materials and tools.

Types of homemade stoves

Stoves made from cylinders significantly surpass in performance characteristics similar heating devices made from other available materials. This fact can be explained by the shape of the cylinder, which is an ideal option for undergoing pyrolysis processes. That is, the most effective combustion compartments are spherical in shape. The design must have two holes. One is necessary for the entry of oxygen, the second for the exit of smoke. All of the above requirements make it possible to produce a gas cylinder that has a cylindrical shape.

Design options

The stove design is based on an old gas cylinder that has not been used for a long time. It doesn’t matter what design it has. These parameters will affect the complexity of the assembly and further operational efficiency.

The following design options are known:

When assembling a heating device yourself, it is important to adhere to three basic rules: minimal investment, equipment safety, ease of operation.

Material selection

Not any cylinder is suitable for a homemade stove. It must be all-metal, since products made from explosion-proof composite materials have insufficient heat resistance. The volume of the cylindrical workpiece is of particular importance. A five-liter flask will not produce an effective heating installation. A tank of this capacity can only be used for fuel for a liquid fuel stove from a cylinder.

For example, to achieve a heater power of up to 3 kW, you will need a tank with a capacity of 12 liters, up to 7 kW - 27 liters. To heat a small country house, a homemade heating device made from a cylinder is suitable following sizes:

Capacity volume - 50 liters.
Cylinder diameter - 30 cm.
The height of the flask is 85 cm.

This capacity is quite enough to burn any type of fuel with virtually no residue. Such cylinders are still in demand among the population, and they are inexpensive.

To make a stove, it is better to use a cylinder with a valve, rather than with a valve, since with the help of a valve it will be possible to regulate the supply of oxygen to the firebox and, accordingly, reduce or increase the fuel combustion power.

There are also cylinders with a capacity of 40 liters intended for industrial gases. It is not recommended to use such products for a homemade stove. They are quite heavy and narrow.

Those who like to travel and relax as “savages” in their own car can make a small camping stove with their own hands from industrial cylinders with a capacity of 2 to 10 liters.

How to make a long-burning stove, bubafonya from a gas cylinder

Before you start making a wood-burning boiler from a gas cylinder with your own hands, you need to prepare all the necessary materials and tools. To perform installation work you need to have on hand:

Before cutting an old cylinder, be sure to remove the remaining propane from it. This gas is heavier than air, so a small amount always remains in the tank. To do this, you need to disconnect the valve from the cylinder and fill it completely with water, which will help push out the remaining propane.

Potbelly stove - boiler No. 2 from a propane gas cylinder. For garage or home

Work order:

The homemade heating stove is ready.

A stove made from gas cylinders is now in my garage. furnace of gas cylinders

Locking handles with attractive ebonite linings are easier to purchase on the market, since making them yourself takes quite a lot of time. And to give the heating device a more modern look, you should buy heat-resistant paint in a can.

The technology for making tight doors for a long-burning stove is also very simple. Narrow metal strips are welded on the inside of the sash, from which a channel is formed. You need to stuff a graphite-asbestos cord into it. After completion of installation work, metal surfaces are degreased and coated with paint in 3 layers. After applying each layer, the paint should be allowed to dry before applying the next layer.

Heating the garage. Super - cylinder stove "100% efficient" / Propane wood stove
The procedure for performing installation work:
The heating equipment is ready for use.
Heating structures such as a homemade boiler made from a gas cylinder can be used to effectively heat garages, workshops, household and other premises. A stove made from a 50-liter gas cylinder with a full load of fuel and the air supply damper open to the maximum can maintain combustion for 8 hours.