The Buleryan stove is often called a stove without flaws. And indeed it is. With only one exception, which is not related to design, performance or economy. The only drawback: a very corrosive condensate is released, which cannot be disposed of and it is difficult to figure out where to put it. Everything. There are no more flaws.

Buleryan design and principle of operation

This heating unit was designed specifically for mobile teams of Canadian lumberjacks, who wander from place to place during the season (winter). Therefore, from the very beginning, high requirements were imposed on safety and efficiency: the oven should heat the room in a matter of minutes.

At the same time, there is no complicated setting and adjustment, the possibility of getting burned should be minimized, the ingress of carbon monoxide into the room should be impossible. In addition, light weight. Here is such a set.

And I must say that "Buler" (one of the names of this design) is fully consistent with them, for which Canadian heating engineers need to say a huge "thank you".

Buleryan furnace design - many interesting and effective solutions

The furnace body has the shape of a cylinder in less powerful models and drop-shaped (in cross-section) in units for large heated areas. Sine-bent pipes are built into the body. They are mostly located inside the body, protruding from it only by 1/3.

This is done for optimal heat transfer: cold air is sucked into the lower pipes, moving along the pipes it heats up and comes out hot. In the active combustion phase, the outlet may be 120 ° C or slightly higher.

From 4 to 6 cubic meters are pumped per minute, so the room heats up really quickly.

The firebox is divided into 3 parts. Above and below are separated by ¼: at the bottom there are cast iron grates or a grate made of thick structural steel (at least 4 mm thick). The upper quarter of the firebox is separated by a steel sheet with holes, which occupy about 7% of its area.

This partition is installed horizontally and does not reach the door by about ¼ of its length. In this secondary chamber, there is a partial afterburning of gases released during the combustion of wood. Air for this process comes from the firebox through holes in the partition. Therefore, the combustion of fuel is incomplete (yet).

But not the whole process takes place in the furnace, the rest of the gases burns out in the pipe.

Cold air is sucked into the pipes from below, which heats up walking along the pipe

The door is wide-format, the fit is sealed, there is a branch pipe with a built-in rotary throttle on it, which plays the role of a blower. By adjusting its position, the intensity of combustion is changed. Some manufacturers supply this choke with a graduated scale.

But these are not all features. The main one is that part of the wood combustion products occurs in the chimney. From the upper part of the firebox, unburned gases go out into the horizontal section of the chimney, up to 1 meter long. This section is obligatory for "Buleryanov", in it the combustion of gases is slightly slowed down, they cool down a little.

Then the chimney turns up. And here the original Bulerjan has an economizer - a device that completes the process of afterburning pyrolysis gases. With it, the efficiency of the furnace is in the region of 80%, and without it - about 60%, which is also not bad, but ... In the section of the chimney 15-30 cm long, secondary combustion of gases occurs.

Combustion is not constant, but periodic: it flashes, then it dies out.

Branded Blerjan with economizer. It is installed at the factory and given detailed recommendations on the chimney arrangement, so that nothing needs to be thought out.

To obtain this effect, the pipe is carefully insulated. For this, heat insulators are used that can withstand high temperatures (basalt wool, mineral cardboard, etc., a layer of 3-5 cm, depending on the characteristics of the material).

Gases that have not completely cooled down in the horizontal section of the pipe enter this section, where, due to good thermal insulation, they accumulate a large number of thermal energy. The temperature of the gases rises, they flare up again.

The flared gas increases in volume, but due to the limited volume, it clogs the pipe lumen. A gas plug is formed. All gases burn out, cool down and dissolve. Then the process is repeated.

Its intensity and frequency depend on the quality of the wood and the position of the throttle. Buleryan adjusts itself to these parameters without additional adjustments.

Gate damper at the outlet from the firebox

A gate valve is installed at the outlet of the furnace to regulate the intensity of the draft. The diameter of the gate is about 10-20% less than the diameter of the chimney. A sector about a quarter of a circle has been cut from the flap disk.

This plug is welded to a metal rod, with the help of which it is movably attached to the pipe. With this gate and choke on the door, the combustion mode is set. How often the stove "puffs" depends on the fuel and their position.

It is worth agreeing that the Buleryan device is original and expedient in everything. Very interesting and unusual solutions and ensured high popularity for these ovens.

Moreover, even without the last afterburning in the pipe, the device is used, and they do not complain: its efficiency is much higher than that of air heaters of other designs. Added to this is high safety: even leaving the door open, it is impossible to burn out.

Just like getting burned on a hot body: in normal operating mode, its temperature is only 50-60 ° C, which is clearly not enough for a burn.

How to heat properly

The main operating mode of Buleryan is smoldering (firewood, pellets, wood chips, briquettes). Intense combustion - only for the first time to quickly heat up the room. If the combustion is constantly active, the metal will quickly burn out: it was not created for such a regime.

First, the oven needs to be ignited. For these purposes, you can use paper, cardboard, pellets, dry chips, etc. the main requirement is dry fuel burning at high speed. The volume of the bookmark is for 20-30 minutes of burning. Here you need to adapt: ​​the fuel should turn into coals at a time when the room is almost completely warmed up.

Dry fast-burning fuel is put in first.

The fire is lit when the damper and throttle are open, the door is closed. The fuel burns actively and the room heats up quickly: at this time, from 4 to 6 cubic meters of air passes through four pipes per minute, and the outlet temperature is around 140 ° C. So even a decent room won't take much time.

The process must be observed: through the glass in the door or through an open throttle, however, the second method is very inconvenient. When the fuel turns into coal, coarsely chopped wood is thrown into the furnace. Whole blocks are possible, just push through ... You can lay briquettes. What cannot be used is coal. The oven is not designed for such temperatures. Bulleryans are a pure wood stove.

Now set the throttle to the mode that is required (it can be in the extreme position to the limiter), the gate to the “closed” position (¼ of the chimney section remains open). In this position, the fuel smolders, and the process proceeds in stages. Air comes out of the pipes, heated to 60-70 ° C, while the furnace body has a temperature of about 50 ° C.

How it is not necessary to heat: it is not necessary to "accelerate" the stove to super high temperatures. And it's not just that the metal will burn out. It's just that with this design, most of the heat is air through heating pipes not transmitted: its thermal conductivity is limited.

And all the surplus will simply fly away through the chimney into the street.

Therefore, the manufacturer categorically advises against using coal or coke: a waste of funds, and besides, the equipment will quickly fail, and the plant will not accept claims - the operating conditions have been violated.

Installation of "Buleryan"

During installation, it is necessary to maintain the distances to the walls, which are recommended by the fire brigade. Examples of wall protection and distance to the stove depending on the material:

• wooden unplastered - not less than 1000 mm;
• a layer of heat insulator 7 mm, and on top of a metal 1 mm - a distance of 500 mm;
• non-combustible plaster with a layer of 25 mm and ceramic tile- 700 mm;
• single brickwork(55 mm) - 500 mm;
• double brickwork (110 mm) - 300 mm;
• a shield made of two sheets of metal 1 mm thick, assembled using non-combustible inserts, the distance between the sheets is 30 mm; the structure is attached to a wall protected with a layer of thermal insulation - the distance to the walls is 300 mm.

The Bulerjan oven must be installed on a non-combustible base. This can be four rows of bricks laid flat. A clay mixture is used as a solution. The dimensions of the base are 30 cm larger than the parameters of the furnace in any direction.

To save bricks, you can leave voids in the bottom two rows. Another type of non-combustible base is a metal support for Buleryan made of pipes. Its height is 150-300 mm.

With any method of installation, a metal sheet should lie on the combustible floor in front of the furnace; its dimensions are: width 500 mm, length 700 mm.

Rules for installing "Buleryanov" on a combustible floor

When installing a Buleryan stove with your own hands, it is important to make a chimney correctly. To them are presented General requirements(except that it all must be insulated, but this is not a requirement of firefighters, but technological nuances). The chimney pipe can be:

• Brick. Wall thickness 120 mm.
• Concrete with a wall of 60 mm.
• Metal (including a sandwich).

Chimney parameters depend on the model. For ovens "Buleryan" type 00 and 01 minimum height- 4 m, section 120 mm; for models of type 02, 03 and 04 - above 5 m, with a cross-section from 150 mm. The chimney must be sealed, the joints must be sealed with heat-resistant sealant.

Both types of chimney outlet are allowed: through the roof or into the wall

Both ways of removing the chimney are allowed - through the wall and ceiling. Wall outlet is easier to implement, especially if there are several floors. When exiting through the ceiling, it is required to equip the pass-through unit through the ceiling and roof in compliance with all fire-prevention measures. The chimney height above the ridge is at least 0.5 m.

As you can see, there are no excessive requirements in the installation: they prepared the place, built a sealed insulated chimney and you can carry out the first firebox. So installing the Buleryan stove with your own hands is a possibility.

Models

Heating furnaces "Buleryan" are produced by different factories in different countries... There is a plant in Ukraine. They produce heating Bullers and sauna stoves, there are also heat accumulators compatible with some models.

Ukrainian version. Bullers

Specifications ovens of convection type "Buleryan » of this manufacturer are summarized in the table.

Technical characteristics of "Buleryanov" of Ukrainian production (click to enlarge the picture)

Heat accumulators are used mostly in greenhouses, where there are almost no walls that accumulate heat in ordinary buildings.

Hinged panels made of painted steel plates completely repeat the shape of the furnace, therefore, each modification has its own heat accumulator. The device is hung on the tops of the heat exchange tubes and rests against their lower ends.

You can fill them with any solid heat-consuming material: broken brick, large rubble, pebbles, etc.

Canadian Bulerjan. Models of different power

Canadian ovens "Buleryan" are also presented in Russia. Their characteristics are summarized in the table. As you can see, the performance is different, but the characteristics are the same.

Canadian Bulerjan. Specifications (click to enlarge the picture)

How to heat multiple rooms

Boilers long burning Buleryan can be used to heat several rooms. For this, it is not necessary to somehow alter or modernize the unit. You can assemble air ducts and a heat chamber. Such an air heating system is no less effective than a water one, and it requires several times less money and time to organize it.

Assemble the thermal chamber as shown in the figure. You can use galvanized drywall profiles and galvanized sheets. Assemble the frame from the profile. In galvanized sheets, cut holes for the grilles and the revision door, then attach them to the frame. Outside, cover the galvanized steel with thermal insulation (mineral wool mats). Further, the camera can be decorated or not - at will.

The thermal chamber will allow you to accumulate heat from the oven. From it it is already possible to build air ducts around the rooms.

Air ducts are connected to the upper heated air outlets. They can be made of plasterboard, or you can use metal pipes of the appropriate diameter or square, as in standard air ducts.

This solution is much more effective than putting the corrugation on the heat exchanger tubes. In a heat chamber, you collect all the heat from the stove, and then distribute it through the air ducts. In general, when designing or planning a system, keep in mind that the shorter the air ducts, the more efficient the heating will be.

There is one caveat: some people really want to adapt this stove for water heating. Breneran and some other manufacturers of similar stoves even have Aqua variants.

But the principle of operation itself is poorly suited for heating water: it has a greater heat capacity than air. The efficiency of such units will not be great.

If you want to water heating- buy an ordinary hot water boiler, long burning or pyrolysis. It will be more efficient.

Reviews about "Buleryany"

With the reviews, everything is very simple: everyone who operates the stove is happy, very happy or "terribly happy" (the last saying is a quote from one message). The only thing that people are actively discussing is an effective heat distribution scheme for heating a large number of rooms.

What they encounter during operation: overgrowing with soot from chimneys, which must be cleaned from time to time.

Another thing to remember (again, from operating experience): you cannot narrow the chimney, then it will be either very difficult or impossible to adjust the Buleryan (this is to adjust the position of the gate and choke for stable combustion and high efficiency).

Source: http://teplowood.ru/pechi-bullerjan.html

The device and principle of operation of the Buleryan furnace: design features, diagram

Technological progress affects all areas of life. Heating systems that use solid fuel for operation are not ignored either.

Canadian Buleryan-type stoves are in demand, since it is possible to choose an option that is optimal for certain room dimensions. Power and functionality, appearance and device depend on the model.

You need to know the principle of operation and the device of the unit in order to use Buleryan heating furnaces with maximum efficiency.

The design of Buleryan stoves is designed for the use of solid fuel - firewood, less often coal or pressed wood waste is used. The device of such furnaces is extremely simple, which allows you to assemble them yourself using a minimum set of tools.

A stove - a stove-stove of the Buleryan type externally is a steel barrel with pipes that can be located above and / or below the structure. It combines the pyrolysis type of combustion and the functions of a convection heater. The heat generated during the combustion of the fuel immediately goes into the pipes (air ducts), which increases the productivity of its work up to 80-85%.

The device of the Buleryan furnace in the photo (in section)

Buleryan furnace design:

• The largest part of the structure - the combustion compartment of the placed solid fuel cell (occupies 85% of the volume) - processes of primary ignition and the generation of pyrolysis products take place.
• Compartment for afterburning fuel (25% of the internal volume of the unit) - the pyrolysis products enter, after which the residual fuel burns out with the formation of a flame, the process is accompanied by the release of high temperature.
• Injectors - tubes for supplying air to the afterburner (necessary for the combustion reaction of pyrolysis products).
• Pipes for the convection process - this element of the Buleryan pyrolysis oven is made from thick pipes made of metal. They receive the heat released during combustion, which enters the room through the hole in the pipes in the form of streams of warm air.
• Regulators - this part of the furnace consists of two mandatory elements required to regulate the operation of the unit - a damper and a throttle on the door. A function is implemented that allows you to regulate the air supply to the afterburner. The temperature of the discharged air is monitored.
• Chimney (with or without condensate collection tank) - function for removing combustion products.
• Ash pan (located at the bottom of the structure).

The modern stove stove Buleryan is used in different areas - for heating a house, industrial or horticultural buildings. The well-thought-out Buleryan device allows you to get maximum heat output from solid fuel. The Buleryan wood-burning stove works according to the following principle:

• The required volume of firewood is loaded into the firebox (you can add a little paper or mixture for ignition to facilitate the process of engulfing in a flame).
• After the fire has flared up confidently, it is necessary to limit the flow of air.
• A pyrolysis process takes place - ignition under the influence of a secondary air flow.

Schematic representation of the principle of operation

The heat generated during the active process of smoldering and residual combustion of wood fuel, pyrolysis products, then enters the air heat exchanger. To ensure the complete tightness of the combustion chamber, the pipes at the base of the heat exchanger, if the stove is assembled with your own hands, you need to weld with sheet iron to each other.

Important! The amount of heat generated by the unit is sufficient to create a fully functioning piping system that heats other rooms or premises.

Gases incandescent under the influence of fire give off thermal energy(up to 90%) in bent pipes of the structure. If you correctly calculate the power of the furnace and the area of ​​the room heated by it, then you will need to add fuel 2-3 times a day.

Dimensions (edit)

Canadian Buleryan ovens have the following size range:

• Height - 71-96 cm.
• Width - 49-75 cm.
• Depth - 69-150 cm.

By groups:

• Group 00 - height 71 cm, width - 49 cm, depth - 69 cm.
• Group 01 - height 75 cm, width - 56 cm, depth - 82 cm.
• Group 02 - 85 cm, width - 85 cm, depth - 99 cm.
• Group 03 - height 90 cm, width - 62 cm, depth - 112 cm.

Buleryan type 01 (Vancouver)

The choice of the group depends on individual characteristics buildings where the device is supposed to work. There are also two groups that are recommended to be installed in production facilities:

• Group 04 - height 96 cm, width - 71 cm, depth - 134 cm.
• Group 05 - height - 96 cm, width - 75 cm, depth - 150 cm.

Example Buleryan from group 04 (Toronto)

It is also necessary to take into account the power. Depending on the model, they give out 6-45 kW. The volume of the room that can be heated using the unit (m3) -100-1300. The number of pipes is 7-16. The smallest buleryan is able to heat a small cottage (up to 100 m3) or a greenhouse.

About water bullers

Buleryan can also carry out heating and water heating at the same time. Boilers equipped with a water circuit are used in homes and industries. Buleryan - a stove with combined functions in terms of the scheme and device is similar to the usual modification, in which air convection is used for full heating.

An example of a water buleryan

Features of the device:

• There are pipes around the combustion chamber.
• The basic principle of operation is chemical processes: pyrolysis or gas generation.
• The pipes are filled not with hot air, but with a heated liquid heat carrier.

The operation of the Buleryan system furnace with a water circuit is as follows:

• Pipes (convection) in the lower part have a collector (lower and upper).
• On the lower of the collectors, there is a specially mounted outlet, which is necessary to return the liquid to the system.
• The top element has a pipe that is required to supply a heat transfer fluid to the system.
• The water or other liquid heat carrier used in the system gradually heats up. This takes place during the furnace firing process.
• The desired pressure is generated (selectable by setting).
• There is a circulation of liquid under the influence of physicochemical factors and its rise to a height of 7-8 meters.
• The liquid heat carrier moves through the pipes and enters the heating devices (batteries, convectors), which are located in the premises ( living rooms, production halls or greenhouses).

The cooled liquid heat source is returned back to the system via a drain on the lower header.

In this case, the gas formed during the combustion of solid fuel takes part in the heating process. For this purpose, the design of the furnace provides for two, rather than one, combustion chambers - in one, the main fuel is burned (firewood, pressed sawdust or coal briquettes), in the second, the process of gas afterburning takes place.

Water Buller Connection Diagram

After warming up the compartment for firewood combustion, it is recommended to switch the boiler to the gas generation mode. In this phase of operation, the fuel does not burn, but smolders. This allows you to increase the heat release time, but the system will function autonomously.

Feature - the efficiency remains the same as when burning wood or other solid fuel. The buleryan home stove with a water heating system allows you to get hot water for domestic needs, if the pipes are connected to a special container.

Water heats up to 100 degrees in 30-40 minutes, depending on the model chosen for use, which requires about 2.5 kW of energy.

Bullers without pipes

What is a Buleryan oven without pipes? This is a modification of a conventional potbelly stove with a heat shield, to which an afterburner is added. Inventor - Professor I.N.Butakov The system of the device and the principle of operation of Butakov's furnaces are similar to the usual Buleryan, but the design is devoid of complex assemblies and elements, which makes it possible to reduce the size and dimensions.

What is the efficiency and can it be improved?

Buleryan's efficiency, depending on the size and power, as well as the correctness of the settings made, is 70-90%. It is possible to increase these indicators by 3-5% by installing no more than 6 pipes per unit.

Important: the efficiency may decrease if the furnace power is less than the maximum allowable area of ​​the house or other structure for the selected model.

The buleryan stove has the following disadvantages that can negatively affect this indicator:

• The use of coal reduces heat output.
• The efficiency corresponds to the promised only when using dry wood.
• 60% of the gases go into the chimney.
• It is necessary to correctly adjust the process of air supply and restriction of air access.

If all the disadvantages of Buleryan are taken into account, then the efficiency will increase. Installing glass for the buleryan stove (in the door of the combustion chamber) will create the effect of a fireplace in the house.

Output

Canadian technology by which heating boilers and their counterparts in other countries, is an effective source of heat at low cost of solid fuel. A properly configured system will allow you to maintain optimal temperature in rooms of any size.

It is important to adhere to the rule: the ratio of the power of the unit and the size of the premises so that the efficiency is optimal. To heat several rooms and / or water for domestic needs at once, it is recommended to choose special systems that use a liquid heat exchanger and a gas generation process for their work.

In addition, the Buleryan oven for a greenhouse or a house with a water heating circuit uses the principle of pyrolysis in its work.

Source: https://pechnoy.guru/pechi/otopitelnye/buleryan/ustrojstvo-buleryana.html

Buleryan stove - design and installation features, advantages and disadvantages, how to heat correctly

The stove is capable of keeping the home warm and comfortable in all weather conditions. Many of the owners of houses, dachas know how important it is to find optimal method heating.

The Buleryan stove will help heat the house during the heating season; it can easily withstand even the harsh Canadian climate. Owners one-story houses, industrial premises prefer this method of air heating.

The unit is considered the most reliable, economical, easy to operate.

What is Buleryan oven

History says that the device was developed by technologists, and it was intended for mobile teams of lumberjacks. The Buleryan stove is a convection-type solid fuel device for autonomous heating. The Bullerjan stove is made in Germany.

There is also a Russian analogue - the breneran oven. There is no functional difference, their structure is identical. There are variations of the stove with hob for cooking, which makes it even more comfortable for home use.

The device is suitable for heating private houses, baths, garages.

The wide, sealed door of the firebox has a blower (throttle) for power regulation.

The chamber has curved walls in which pipe banks are placed by 2/3 of the diameter (pipes can be round, square). Such a Buleryan device provides high heat transfer in the smoldering mode.

In the lower part of the firebox there is a pallet in the form of a lattice made of cast iron or steel. The upper baffle has holes.

The space above the upper partition is the afterburner in the smoldering mode. Flue gases from this cavity go out into the horizontal zone of the chimney - hog.

The chimney for buleryan has a gate, it is installed where the pipes are turned up. The combustion mode can be controlled with this smoke choke.

The waste always flies out through the pipe and does not enter the room due to the fact that the choke with the gate is not able to block the thrust.

The heater economizer is located above the damper. This vertical section has good thermal insulation, designed for afterburning flue gases. In the economizer, the gas flares up and forms a plug - the intensity of the flame in the furnace dies down.

When the cork cools down, slips over - combustion intensifies again. The presence of an economizer increases the efficiency of the stove up to 80%, without it this figure does not exceed 65%. With the help of diagrams, drawings, you can make a furnace from a cylinder yourself.

How it works

The furnace is capable of operating in two modes: kindling and gasification. The principle of Buleryan's work depends directly on the mode. In the first mode, the oven quickly heats up to maximum temperature with a minimum amount of fuel.

The room heats up quickly, because the stove is capable of delivering 4 cubic meters of hot air per minute. In the gasification mode, the air heats up evenly, and the solid fuel smolders. In this case, the maximum amount of fuel is loaded, and the flap is closed to a minimum.

In this mode, the oven can work up to 12 hours.

The presented unit can be used for hot water heating, then the heat exchanger will contain not air, but liquid. Buleryan boiler has the same efficiency as gas devices for heating. The Buleryan stove with a water circuit is relevant in summer cottages and industrial premises. The main features of aqua-buleryan:

1. The surface of the oven with a water circuit does not get very hot, so it can be installed in a small room.
2. The boiler can be used subject to natural circulation of the heat carrier.
3. For most models, a concrete base is made for mounting.
4. There is a combustion chamber inside the casing. Pipes with liquid tightly fit the chamber, thanks to this, rapid warming-up is performed.

Advantages and disadvantages

Buleryan pluses:

• The air heats up quickly and spreads through the air ducts.
• The room heats up evenly.
• Ease of operation and installation, minimal fuel consumption.
• High efficiency of furnaces.
• The oven is capable of operating at full load for up to 12 hours.
• The furnace body heats up less than other types of furnaces.

Cons of Buleryan:

• Mandatory presence of an insulated pipe.
• Fire safety requirements complicate the location. There must be at least 1 meter from the body to the wall.
• Condensation of soot, water and tar forms on the pipes. When burning, an unpleasant odor enters the room.

Buleryan's advantages and disadvantages indicate that an effective device must be monitored. Pipes must be cleaned from condensate at least once a year.

The features of the placement of the convection-type oven will not cause any particular difficulties during installation. Thanks to the rapid heating of the room and the low price, many are ready to buy a Buleryan stove.

A Canadian stove is an inexpensive option and is suitable for any interior.

How to properly drown Buleryan

The manufacturer recommends using linden or poplar firewood, peat briquettes, cardboard or shavings as fuel. The moisture content of the wood should not exceed 25%. Intense combustion is not a priority mode of operation, it is only relevant for quick warming up.

At the first stage, the air heats up to 120 ° C and the room is heated intensively. After the start of smoldering, the body of the structure cools down to 55 ° C, and air comes out of the batteries with a temperature of up to 70 ° C.

You should not try to increase the combustion temperature with coal or coke, this will not only harm the metal, but also reduce the efficiency.

Heating Buleryan should follow the instructions:

1. We ignite the stove with flammable fuel: cardboard, paper, wood chips. The volume of the bookmark should be enough for 15-20 minutes. The fuel should turn into coals in 2-3 minutes before the room is completely warmed up, this requires skill.
2. When burning, you need to close the door, but the throttle and gate remain open.
3. Firewood is laid on the coals all the way. You can put whole blocks of wood.
4. We expose the throttle to the desired position, and the gate must be closed all the way.

At the same time, they are distinguished by amazing efficiency and high efficiency, which can reach an impressive 85%. The advantages of such furnaces also include fast and trouble-free start-up after prolonged downtime, the possibility of ignition at subzero temperatures, and the minimum requirements for starting operation.

Buleryan can operate in two modes - fuel combustion, when there is a need to ensure rapid heating of any room, and smoldering, in which the furnace will relatively stably maintain the required indicators on the thermometer. There will be no need for additional maintenance, except for periodically loading a new batch of firewood after 5–12 hours and, if necessary, a simple adjustment of the draft.

Scope of application of ovens

Wood stoves have proven to be excellent in heating household facilities (greenhouses, workshops, garages). Buleryany can also be used as an alternative backup heating in a private residential building. For example, they will come in handy during the off-season, when weather conditions force the room to warm up for a short time.

In severe frosts, such stoves can help maintain a comfortable temperature in the house, significantly lightening the load on the central heating system. This is a great option for a summer residence, if you intend to come there periodically, but at different times of the year. In this case, it makes no sense to equip serious heating communications.

Buleryan, on the other hand, is the best suited to quickly and easily solve the problem with heating the house. In addition, these stoves are distinguished by their peculiar beauty and, in addition to their main functions, can become an original and unusual element that allows you to customize the interior of a room.

Buleryan stoves are inexpensive and easy to purchase, or even possible. The installation of such heating devices is extremely simple, and if you wish, you can do it yourself. You only need to determine and properly equip a place for the stove, install the unit and connect it to the chimney.

You may also be interested in an article on how to make a do-it-yourself diesel dropper stove:

Place for the oven

The location of the stove in the home is of paramount importance. For heating the entire building, it is better to equip a place on the ground floor in the very big room... Then the warm air from the operating oven will gradually spread to all other rooms.

Individual placement is preferable in cases where it is supposed to be used to heat only one room. Heating devices of this type are installed so that they can:

• effectively heat the entire room;
• do not interfere with the free movement of people;
• have sufficient space for service;
• and a constant supply of combustion air.

Most often, Buleryan ovens are located near external or interior walls at home. Corner placement is very popular. Installation in the center of the room is also possible, but only on condition that the room is spacious enough. For safe operation of the heater, the following minimum distance from the furnace body to the walls must be maintained:

• 1 meter - for wooden structures;
• 0.7 meters - for plastered and tiled bases;
• 0.5 meters - for single brickwork or protective structures made of mineral wool and all-metal sheet;
• 0.3 meters - for double brickwork with non-combustible cladding.

In addition, there should always be an unoccupied space in front of the firebox with a size of at least 1.25 meters. According to fire safety requirements, it must be covered with a solid sheet of metal to prevent accidental ignition of the room from a falling spark.

Oven base

The base for the oven can be, for example, cement strainer... This strong, durable and fireproof coating will provide both good stability of the unit and fire safety in the building. In addition, it is possible to build a solid brick podium, followed by its facing with tiles or stone.

As an option for the foundation, it is allowed to lay an asbestos-cement sheet on the floor under the entire base of the furnace, plus the top coating should be made of solid thick metal, securely fixed around the entire perimeter. The minimum dimensions of the base must be larger than the dimensions of the furnace model:

• on the sides - 20 cm on each side;
• front and back - 0.6 m.

Note: ovens must not be placed on wooden floors, linoleum or any other flammable coating. All such materials should be removed immediately, and to install Buleryan, prepare a good base in the chosen place.

If the foundation for the stove was made flush with the floor, in order to improve air circulation through the lower openings of the pipes and, as a result of better heating of the room, Buleryan should be raised to a slight elevation. It can be:

• brickwork on clay mortar, followed by facing with decorative non-combustible material;
• welded metal stand from pipes under the legs of the structure;
• stone slabs, subject to their integrity.

The minimum lifting height should be 20 cm, the maximum is 60 cm. The stove should be positioned on a raised platform and not wobbled. (Read how to make a stand for the Buleryan oven yourself in).

Stove chimney

Chimney device diagram for the Buleryan stove

An important point in Buleryan's installation is the installation of a chimney. The operation of the furnace provides for constant smoke extraction through a straight vertical channel with a minimum horizontal section in the area of ​​the outlet pipe, which is located on the rear wall of the housing structure. Depending on the location of the heater inside the house, there are two options for placing chimneys:

• outside the building (when the stove is located near the load-bearing walls);
• inside the house (when located near the internal partitions).

Click to see a diagram of the chimney under the Buleryan stove inside the house

1. According to the manufacturer's recommendations, the minimum chimney height should be 5 m for the smallest model, and 6 and 7 m for large stoves. In this case, the upper part of the pipe should rise at least 0.5 m above the upper point of the roof. An excess of this indicator by 1.5 m indicates the need for a special system of stretch marks designed to keep the chimney stationary.
2. The upper part of the pipe should be equipped with a protective element in the form of a fungus or a cone. So atmospheric precipitation will not be able to penetrate the chimney, and the draft will be stronger.
3. For periodic cleaning of the chimney from soot and condensate, a tee is placed in the area of ​​the junction of the horizontal and vertical sections, the lower part of which continues with a small piece of pipe and ends with a removable plug.
4. When the chimney is located externally, its horizontal part is passed through the wall by means of a special pass-through pipe, a shaped element with thermal insulation that protects the walls from high temperatures of furnace gases. In the area of ​​the tee, a bracket is attached that supports the entire structure of the chimney. The vertical part along the facade is reinforced every 2 meters with clamp fasteners or wall brackets to give the pipe additional rigidity.
5. The internal location of the chimney assumes the passage floor slabs and roofs, which are carried out through the passage pipe and the roof penetration, respectively. In homes where the floor is made of wood, it is worth taking extra precautions. Between the structural elements and the sleeve of the branch pipe, it is necessary to lay additional insulation from any non-combustible foil insulation.

Take a note: the joints of the chimney elements can be fastened together with a clamp, rivets or self-tapping screws, which will only give additional strength to the entire structure. However, care must be taken that the docking does not fall on the marching pipes located both in the wall and in the floors.

After finishing the installation of pipes, it is worth checking the thrust force in the chimney duct. The easiest way is to use a regular newspaper. A small piece of the sheet must be brought to the open lower opening of the chimney. If there is a draft, the paper will immediately react with deviations towards the channel.

Now it remains only to install Buleryan in the place due to him, connect the stove to the chimney and insulate the joint with stove sealant. To check the quality of the work performed, it is also worth arranging a control ignition of the furnace with a small amount of dry chips. The absence of smoke in the room and "leaks" at the joints of the chimney elements will indicate that everything was done correctly. This montage wood stove Buleryan can be considered complete.

Watch an overview video about the Buleryan furnace:

One of the most effective ways heating the garage space is the use of a special stove, popularly known as "buleryan". Such a design is in many ways superior to traditional "stove stoves", since it heats, but does not overheat the room, moreover, it does not need a lot of oxygen to work. Passing through "buleryan", the air is heated up to 100-150ᵒC and is supplied in this form to the heated area.

Attention! Due to the long burning time, such a furnace operates in a twelve hour cycle, that is, to maintain the required temperature, the fuel needs to be loaded only twice a day.

Furnaces of this type are often manufactured in the form of a monolithic structure, which consists of a certain number of interconnected metal tubes. When fuel is burned, convection air flows are formed in the tubes, which lead to rapid heating of the room.

In parallel, cold air is drawn in by the lower ends of the tubes, warmed up in the combustion chamber and sent back into the room. Even the smallest versions of "Buleryan" can pump five cubic meters of air for a minute. Obviously, for an ordinary garage, this efficiency is quite enough.

The functioning of the combustion unit in such a design is vaguely similar to the operation of a gas boiler. The firebox consists of a pair of chambers. In the first chamber, fuel slowly smolders, forming finally unburned gases. They burn out already in the next chamber, which provides forced air supply through the installed nozzles.

Thanks to the "double" incineration, almost no waste remains, and the efficiency exceeds 80%.

Attention! Due to the fact that in the garage there is no need for high temperature (which is how it differs from the residential one), it is advisable to equip the stove with a thermostat.

There are three possible methods for adjusting the temperature:

As already noted at the beginning of the article, one of the design features of the Buleryan is special tubes recessed into the combustion chamber by two-thirds of their diameter. This ensures fast heating of the room.

Such ovens perform two functions at once:

• quickly warm up the air to the required temperature;
• maintain this temperature for a long time.

Moreover, they do not dry the air and do not get hot during operation.

Attention! Experts advise against using charcoal, as it will quickly burn out the pipes, which are known to take up most of the case. If the operating modes are correctly observed and only the fuel that can be used is loaded, then the operating life of the "Buleryan" will be unlimited.

Video - Buleryan oven review

Before you start manufacturing, you should prepare everything you need.

Stove "Buleryan" drawing

Stage 1. Materials and equipment

To create a furnace, you will need the following materials:

• sheet steel 6 mm thick;
• metal pipes ø55-60 mm.

You will also need the appropriate tools, which include:

• welding machine, electrodes to it;
• water level;
• clamps;
• patterns;
• pipe cutter;
• marker;
• pipe bender;
• grinder;
• corner;
• ruler.

After preparing everything you need, you can start cutting the blanks.

Stage 2. Cutting blanks

Step 1. First, the pipes are cut into pieces of the required length.

Step 2. Then, oval-shaped blanks are cut out of the metal sheet, which will be used in the manufacture of the back and front walls. Tapes are cut from the remnants of the sheet, with the help of which the gaps between the tubes are closed.

Step 3. A workpiece is cut out for a V-shaped pallet, and flaps are formed. All that remains of the metal is used for the inlet / outlet pipes and the door.

Step 4. Tubes and strips are folded. The bend for the body occurs in an arc, the caliber is periodically checked (the length of each tube should be 120 cm, and the radius should be 22.5 cm). This will require a pipe bender.

The inlet and outlet branch pipes are bent using the same device into a ring. If this is not possible for any reason, then they are cut from a pipe of a larger diameter.

Stage 3. Assembly of the structure

First, the body is made. To do this, follow these steps.

Step 1. On a flat surface, a tube is laid (the first one at the back), next to wooden beam thickness equal to the diameter of the bent tube.

Step 2. The next tube is laid on the timber - its edges should lie on top of the previous one. A second beam is placed next to it with an overlap relative to the first.

Step 3. In this sequence, the tubes are staggered until the level of the front wall is reached.

Step 4. Tubes are aligned and "seized" by welding at the points of contact.

A V-shaped pallet is welded into the finished body, which will separate chambers No. 1 and 2. First, the points of contact of the outer surface of the chamber with the pallet are "grasped", after which a continuous seam is formed along the entire plane. A perforated shelf is installed above the inlet pipe (blower).

Step 5. Next, the gaps between the pipes are closed with metal strips cut in the previous stage of work. The structure can be turned from vertical to horizontal position, all joints are welded with permanent seams. It remains only to make the back and front walls.

Instructions for the manufacture of the front wall.

Step 1. One of the oval blanks is applied to the front of the body. Trim points are indicated for precise fit.

Step 2. Then a hole is made in the wall for the blower and a branch pipe for the damper is welded on.

Attention! For the manufacture of such a shutter, the walls of the branch pipe are cut axially, a metal pin with a pre-welded flat disc is inserted into the resulting hole. It is important that the diameter of this disc fully matches the diameter of the nozzle.

Step 3. Next, a hole is made for the door and a short "collar" is welded. The door itself should be a short double-walled cylinder. The door is put on the "collar", for better tightness, the interface with the body is upholstered with an asbestos rope.

Step 4. The door is fixed by means of an eccentric latch. The latch will secure the pin welded to the outside of the plate. On the other side of the door, metal hinges are welded.

After assembly, the structure is attached to the body using welding machine.

With regards to the rear door, it should be a metal circle with a hole made for the outlet pipe (chimney). The door is welded to the back of the case.

It remains only to weld four L-shaped supports to the bottom of the furnace.

Stage 4. How to install Buleryan with your own hands

Attention! To install the stove indoors, preliminary arrangement of the foundation is required - flat slate laid on a layer of refractory asbestos.

The pipe is introduced into the branch pipe by means of a coupling joint, the joint is additionally sealed with asbestos. The pipe from the outlet pipe is led outside the heated room in accordance with the requirements for the installation of chimneys. That's it, the oven is ready for use.

Typical problems of the "Buleryan" oven

The oven will work normally at first - quick heat up, long burning time and other benefits described at the beginning of the article. But over time, it will be more and more difficult to melt the Buleryan, the thrust will deteriorate, and the gate will stop closing. It can only mean one thing - it's time for the first cleaning.

In this case, there are two possible options.

1. You can burn it with aspen wood for some time, although this will not give a special effect. If the structure is already clogged, then no amount of firewood will help.
2. You can also burn. It is important that the ash drawer is fully open when doing this. The channels are very hot ("red hot"), as a result of which all the resin burns out.

Attention! Sometimes a hose from an oxygen cylinder is brought to the ash pan for heating, but this is extremely dangerous.

The Buleryan stove is often called a stove without flaws. And indeed it is. With only one exception, which is not related to design, performance or economy. The only drawback: a very corrosive condensate is released, which cannot be disposed of and it is difficult to figure out where to put it. Everything. There are no more flaws.

Buleryan design and principle of operation

This heating unit was designed specifically for mobile teams of Canadian lumberjacks, who wander from place to place during the season (winter). Therefore, from the very beginning, high requirements were imposed on safety and efficiency: the oven should heat the room in a matter of minutes. At the same time, there is no complicated setting and adjustment, the possibility of getting burned should be minimized, the ingress of carbon monoxide into the room should be impossible. In addition, light weight. Here is such a set. And I must say that "Buler" (one of the names of this design) is fully consistent with them, for which Canadian heating engineers need to say a huge "thank you".

Buleryan furnace design - many interesting and effective solutions

The furnace body has the shape of a cylinder in less powerful models and drop-shaped (in cross-section) in units for large heated areas. Sine-bent pipes are built into the body. They are mostly located inside the body, protruding from it only by 1/3. This is done for optimal heat transfer: cold air is sucked into the lower pipes, moving along the pipes it heats up and comes out hot. In the active combustion phase, the output may be 120 ° C or slightly higher. From 4 to 6 cubic meters are pumped per minute, so the room heats up really quickly.

The firebox is divided into 3 parts. Above and below are separated by ¼: at the bottom there are cast iron grates or a grate made of thick structural steel (at least 4 mm thick). The upper quarter of the firebox is separated by a steel sheet with holes, which occupy about 7% of its area. This partition is installed horizontally and does not reach the door by about ¼ of its length. In this secondary chamber, there is a partial afterburning of gases released during the combustion of wood. Air for this process comes from the firebox through holes in the partition. Therefore, the combustion of fuel is incomplete (yet). But not the whole process takes place in the furnace, the rest of the gases burns out in the pipe.

The door is wide-format, the fit is sealed, there is a branch pipe with a built-in rotary throttle on it, which plays the role of a blower. By adjusting its position, the intensity of combustion is changed. Some manufacturers supply this choke with a graduated scale.

But these are not all features. The main one is that part of the wood combustion products occurs in the chimney. From the upper part of the firebox, unburned gases go out into the horizontal section of the chimney, up to 1 meter long. This section is obligatory for "Buleryanov", in it the combustion of gases is slightly slowed down, they cool down a little. Then the chimney turns up. And here the original Bulerjan has an economizer - a device that completes the process of afterburning pyrolysis gases. With it, the efficiency of the furnace is in the region of 80%, and without it - about 60%, which is also not bad, but ... In the section of the chimney 15-30 cm long, secondary combustion of gases occurs. Combustion is not constant, but periodic: it flashes, then it dies out.

To obtain this effect, the pipe is carefully insulated. For this, heat insulators are used that can withstand high temperatures (basalt wool, mineral cardboard, etc., a layer of 3-5 cm, depending on the characteristics of the material). Gases that have not completely cooled down in the horizontal section of the pipe enter this section, where, due to good thermal insulation, a large amount of thermal energy accumulates. The temperature of the gases rises, they flare up again. The flared gas increases in volume, but due to the limited volume, it clogs the pipe lumen. A gas plug is formed. All gases burn out, cool down and dissolve. Then the process is repeated. Its intensity and frequency depend on the quality of the wood and the position of the throttle. Buleryan adjusts itself to these parameters without additional adjustments.

A gate valve is installed at the outlet of the furnace to regulate the intensity of the draft. The diameter of the gate is about 10-20% less than the diameter of the chimney. A sector about a quarter of a circle has been cut from the flap disk. This plug is welded to a metal rod, with the help of which it is movably attached to the pipe. With this gate and choke on the door, the combustion mode is set. How often the stove "puffs" depends on the fuel and their position.

It is worth agreeing that the Buleryan device is original and expedient in everything. Very interesting and unusual solutions ensured high popularity of these ovens. Moreover, even without the last afterburning in the pipe, the device is used, and they do not complain: its efficiency is much higher than that of air heaters of other designs. Added to this is high safety: even leaving the door open, it is impossible to burn out. Just like getting burned on a hot body: in normal operating mode, its temperature is only 50-60 ° C, which is clearly not enough for a burn.

How to heat properly

The main operating mode of Buleryan is smoldering (firewood, pellets, wood chips, briquettes). Intense combustion - only for the first time to quickly heat up the room. If the combustion is constantly active, the metal will quickly burn out: it was not created for such a regime.

First, the oven needs to be ignited. For these purposes, you can use paper, cardboard, pellets, dry chips, etc. the main requirement is dry fuel burning at high speed. The volume of the bookmark is for 20-30 minutes of burning. Here you need to adapt: ​​the fuel should turn into coals at a time when the room is almost completely warmed up.

The fire is lit when the damper and throttle are open, the door is closed. The fuel burns actively and the room heats up quickly: at this time, from 4 to 6 cubic meters of air passes through four pipes per minute, and the outlet temperature is around 140 ° C. So even a decent room will not take much time.

The process must be observed: through the glass in the door or through an open throttle, however, the second method is very inconvenient. When the fuel turns into coal, coarsely chopped wood is thrown into the furnace. Whole blocks are possible, just push through ... You can lay briquettes. What cannot be used is coal. The oven is not designed for such temperatures. Bulleryans are a pure wood stove.

Now set the throttle to the mode that is required (it can be in the extreme position to the limiter), the gate to the “closed” position (¼ of the chimney section remains open). In this position, the fuel smolders, and the process proceeds in stages. Air, heated to 60-70 ° C, comes out of the pipes, and the furnace body at the same time has a temperature of about 50 ° C.

How it is not necessary to heat: it is not necessary to "accelerate" the stove to super high temperatures. And it's not just that the metal will burn out. It's just that with such a design, most of the heat cannot be transferred to the air through the heating pipes: its thermal conductivity is limited. And all the surplus will simply fly away through the chimney into the street. Therefore, the manufacturer categorically advises against using coal or coke: a waste of funds, and besides, the equipment will quickly fail, and the plant will not accept claims - the operating conditions have been violated.

Installation of "Buleryan"

During installation, it is necessary to maintain the distances to the walls, which are recommended by the fire brigade. Examples of wall protection and distance to the stove depending on the material:

• wooden unplastered - not less than 1000 mm;
• a layer of heat insulator 7 mm, and on top of a metal 1 mm - a distance of 500 mm;
• non-combustible plaster with a layer of 25 mm and ceramic tiles - 700 mm;
• single brickwork (55 mm) - 500 mm;
• double brickwork (110 mm) - 300 mm;
• a shield made of two sheets of metal 1 mm thick, assembled using non-combustible inserts, the distance between the sheets is 30 mm; the structure is attached to a wall protected with a layer of thermal insulation - the distance to the walls is 300 mm.

The Bulerjan oven must be installed on a non-combustible base. This can be four rows of bricks laid flat. A clay mixture is used as a solution. The dimensions of the base are 30 cm larger than the parameters of the furnace in any direction. To save bricks, you can leave voids in the bottom two rows. Another type of non-combustible base is a metal support for Buleryan made of pipes. Its height is 150-300 mm. With any method of installation, a metal sheet should lie on the combustible floor in front of the furnace; its dimensions are: width 500 mm, length 700 mm.

Rules for installing "Buleryanov" on a combustible floor

When installing a Buleryan stove with your own hands, it is important to make a chimney correctly. General requirements are imposed on them (except that it must all be insulated, but this is not a requirement of firefighters, but technological nuances). The chimney pipe can be:

• Brick. Wall thickness 120 mm.
• Concrete with a wall of 60 mm.
• Metal (including a sandwich).

Chimney parameters depend on the model. For “Buleryan” furnaces of type 00 and 01, the minimum height is 4 m, section is 120 mm; for models of type 02, 03 and 04 - above 5 m, with a cross-section from 150 mm. The chimney must be sealed, the joints must be sealed

Both methods of chimney outlet are allowed - Wall outlet is easier, especially if there are several floors. When exiting through the ceiling, it is required to equip through the ceiling and roof in compliance with all fire-prevention measures. The chimney height above the ridge is at least 0.5 m.

As you can see, there are no excessive requirements in the installation: they prepared the place, built a sealed insulated chimney and you can carry out the first firebox. So installing the Buleryan stove with your own hands is a possibility.

Models

Heating stoves "Buleryan" are produced by different factories in different countries. There is a plant in Ukraine. They produce heating Bullers and sauna stoves, there are also heat accumulators compatible with some models.

Ukrainian version. Bullers

Technical characteristics of ovens of convection type "Buleryan » of this manufacturer are summarized in the table.

Technical characteristics of "Buleryanov" of Ukrainian production (click to enlarge the picture)

Heat accumulators are used mostly in greenhouses, where there are almost no walls that accumulate heat in ordinary buildings. Hinged panels made of painted steel plates completely repeat the shape of the furnace, therefore, each modification has its own heat accumulator. The device is hung on the tops of the heat exchange tubes and rests against their lower ends. You can fill them with any solid heat-consuming material: broken brick, large rubble, pebbles, etc.

Canadian ovens "Buleryan" are also presented in Russia. Their characteristics are summarized in the table. As you can see, the performance is different, but the characteristics are the same.

Canadian Bulerjan. Specifications (click to enlarge the picture)

How to heat multiple rooms

Long-burning boilers "Buleryan" can be used to heat several rooms. For this, it is not necessary to somehow alter or modernize the unit. You can assemble air ducts and a heat chamber. Such an air heating system is no less effective than a water one, and it requires several times less money and time to organize it.

Assemble the thermal chamber as shown in the figure. You can use galvanized drywall profiles and galvanized sheets. Assemble the frame from the profile. In galvanized sheets, cut holes for the grilles and the revision door, then attach them to the frame. Outside, cover the galvanized steel with thermal insulation (mineral wool mats). Further, the camera can be decorated or not - at will.

Air ducts are connected to the upper heated air outlets. They can be made of plasterboard, or you can use metal pipes of the appropriate diameter or square, as in standard air ducts.

This solution is much more effective than putting the corrugation on the heat exchanger tubes. In a heat chamber, you collect all the heat from the stove, and then distribute it through the air ducts. In general, when designing or planning a system, keep in mind that the shorter the air ducts, the more efficient the heating will be.

There is one caveat: some people really want to adapt this stove for water heating. Breneran and some other manufacturers of similar stoves even have Aqua variants. But the principle of operation itself is poorly suited for heating water: it has a greater heat capacity than air. The efficiency of such units will not be great. If you want hot water heating, buy an ordinary hot water boiler, or. It will be more efficient.

In the world of autonomous heating, not the last place is occupied by such a useful device as the Buleryan stove, also known as Breneran. Roughly speaking, it consists of a firebox, to which a number of bent pipes are connected. This design allows you to burn wood and other solid fuels with very high efficiency. The cost of industrial models starts from two hundred dollars and increases depending on the size of the firebox. Although the device of such a furnace is somewhat more complicated than that of an ordinary potbelly stove, many craftsmen managed to make buleryan with their own hands.

How does this design work?

Buleryan can be called a very successful hybrid of a potbelly stove and a long-burning wood-burning stove. The device uses the principle of forced convection. A row of curved tubes from above and below is connected to the firebox. Cold air enters the lower holes, which heats up quickly, since the pipes are in direct contact with the firebox. Hot air enters the rooms through the upper openings. Its temperature is so high that it allows you to heat not only one specific room, but even two-storey house... There is also the possibility of combining the Buleryan stove with a water heating circuit. At the same time, the surface of the device itself remains not too hot and does not pose a danger to others.

Thanks to a number of simple adjustments, the oven can operate in two modes. First, the stove warms up quickly, and then the resulting heat is evenly distributed throughout the room. At the second stage, the furnace goes into a slow burning mode. At the beginning, the fuel needs to be added quite often, but as soon as the stove warms up, the firebox can be loaded only twice a day, that is, every 12 hours.

Firewood is burned in the firebox, and the products of this process through convection pipes enter the secondary combustion chamber. Here, the afterburning of the gas-air mixture occurs at very high temperatures, which ensures the efficiency of the device in the region of 80%. Further, hot air is distributed through convection pipes throughout the room.

The process of operation of the Buleryan furnace is clearly presented in the video:

Diagram of the device of the classic "Buleryan"

To successfully make such a furnace yourself, you should first study its device. This is an all-metal construction, consisting of a firebox and a row of bent metal tubes adjacent to it. A door is equipped in front, through which fuel is loaded, as well as a power adjustment device, with which you can change the combustion modes. A secondary combustion chamber is equipped in the firebox and a branch pipe is brought out under the chimney.

This diagram shows in detail the structure of the Buleryan furnace. The main distinctive feature structures - a series of curved hollow tubes that are connected to a two-chamber firebox

To increase the efficiency of using the Buleryan stove, it is recommended to thoroughly insulate the chimney, for example, with a layer of mineral wool at least 3 mm thick.

Of course, you will need a blower through which the air necessary for fuel combustion will enter the furnace. You can arrange a small ash pan, although in the process of slow burning, almost no waste is formed. The double back wall makes the device even more efficient. Some models use a double-layer casing for this.

Step-by-step instruction on manufacturing

To make a do-it-yourself buleryan oven, you need to stock up on metal pipes with an outer diameter of about 50-60 mm, as well as sheet metal. In order to withstand the high combustion temperature, it is recommended to use 4-6 mm steel sheets. In addition to the welding machine and the standard set of tools, you will also need a pipe bender.

1. Manufacturing of bent pipe sections.
2. Manufacturing of a device for removing smoke and collecting condensate.
3. Manufacturing of dampers for blower and outlet.
4. Manufacturing of a door for a combustion chamber.
5. Welding the frame from bent pipes and install a partition in it.
6. Welding metal sheets in the space between pipes.
7. Installation of a door with a lock.
8. Manufacturing and welding of metal legs.

Eight identical segments should be cut from the pipe, about 1.2 m long.Using a pipe bender, they are bent with a radius of 225 mm and placed in a checkerboard pattern.

To make the hollow pipes required for the furnace, you need to prepare eight pieces of pipe, each 1.2 meters long and bend them to a radius of 225 mm using a pipe bender

To remove the smoke, as well as the accumulated moisture, a T-shaped device is made, through which the smoke will go up into the pipe, and the moisture will drain down. To remove moisture, a special tap is placed below. The moisture removal valve should only be opened for this purpose and then closed so as not to impair traction.

Left: The T-shaped oven smoke evacuation device not only removes smoke, but also collects condensate.
Right: The condensate drain valve is located at the bottom of the fume extraction and condensate collection device. It should only be opened when necessary so as not to impair traction.

To remove smoke from the stove, a special damper is made, with the help of which the draft is also controlled.

The damper for regulating the power of the furnace is made with a special hole that allows you to change the draft, but does not completely block the chimney

For the blower, which is located on the front door, a blind flap should be made. A spring is used to keep the flaps securely in the correct position.

The blower flap, which is located on the front door, must be made deaf. This will ensure maximum efficiency of the stove in the slow burning mode.

The most difficult element of the home-made Buleryan is, perhaps, the front door. It should be almost hermetically sealed. The better the door fits to the stove, the more efficiently Buleryan works.

Two rings are made from a large diameter pipe, which almost tightly fit into one another. To do this, cut two 40 mm pieces from a pipe with a diameter of 350 mm. One of the segments is cut and unfolded. After that, the front side of the stove is made using a ring of a smaller diameter.

A round hole should be made in the front wall of the furnace, to which a metal ring is welded. This element is necessary so that the door closes as tightly as possible.

The second ring is used to mount the door and is welded to the sheet metal circle.

Two metal rings are welded along the edge of the oven door, the diameter of which is slightly different. They are sealed with a special gasket made of asbestos cord

Then another ring is welded onto the door, which should be slightly less than the diameter of the ring located on the front side of the stove. In the gap formed between the rings of the door, a sealing asbestos cord is placed and a damper is mounted.

To complete the installation of the front door of the furnace, it is necessary to weld the blower pipe with a damper to it. The damper is provided with a spring for a tighter fit

Now you should return to the bent pipes. In the first two pipes, it is necessary to make holes and weld injection pipes into them. These are small metal elements with a diameter of 14-15 mm and a length of about 150 mm. They are necessary to ensure the connection of the convection elements to the firebox.

In the first two hollow pipes of the furnace, special injectors should be inserted, which will ensure air contact with the combustion chamber.

A stove frame with a partition is made from pipes. It is recommended to use at least 6 mm sheet steel for the partition.

For the partition of the furnace, they use to become 6 mm thick. In order not to have to "guess" with the dimensions, first make cardboard patterns

After that, the gaps between the pipes should be closed with strips of sheet metal, and the back wall should be welded, thus forming the furnace body.

The furnace body is formed from pieces of metal that are welded in the space between the hollow tubes. For their manufacture, cardboard patterns are also useful.

In order to accurately cut out the elements of the partition, back wall and metal strips, it is recommended to first make cardboard templates.

It is recommended to make a special lock for the door. It is an eccentric that fixes a metal loop located on the wall of the stove. With further scrolling, this device ensures the most tight fit of the door to the stove. To make such a device, you will need to perform a number of turning and milling operations.

It is not easy to make a lock for the oven door. Inexperienced craftsmen should seek the help of a professional turner or milling machine.

It remains only to make hinges and hang the door, as well as cut, bend and weld the stove legs.

Stove legs can be made from suitable thin tubes, shaping them to the desired shape using a pipe bender or improvised tools

The process of making Buleryan can hardly be called simple, an ordinary potbelly stove is much easier to make. But ease of use and high efficiency fully justify the time and effort spent.