Select a pyrolysis boiler. Long-burning pyrolysis boilers

Combustion of fuel in classic solid fuel boilers is a good alternative to using traditional energy sources such as natural gas or electricity. But these devices do not fully utilize the energy of wood combustion. When a conventional boiler operates, the gas released from the fuel at high temperatures simply goes outside along with the combustion products. Operating principle of a pyrolysis boiler allows the use of this gas, thereby increasing the efficiency of the unit and the duration of the interval between fuel loadings. Such devices are also called gas generators.

What does a gas generator set consist of?

The main difference from a classic wood-burning boiler is the presence of an additional combustion chamber in which the gas released is burned, and in the primary firebox it is generated from wood with an insufficient amount of oxygen. The layout of the chambers and the design of the pyrolysis boiler can be different, the firebox can be located either below or above, this does not change the principle of operation. Traditionally, it is located below, above the ash pan, into which a drawer is placed for ease of cleaning. The ash pan lid tilts up and in operating mode serves to regulate the amount of air entering the firebox. This is realized using a chain drive, which is tensioned or released by a thermostat. The latter is installed at the top of the boiler.

All the main elements and details of the installation can be seen by studying the detailed drawing of the pyrolysis boiler. The main firebox is equipped with a door for loading firewood and is tightly closed during operation. Above it is a secondary combustion chamber in which air supply devices are located. They can have different configurations in devices different manufacturers, but their task is the same: to supply heated air into the afterburning chamber through many holes of a certain diameter. The air is heated along the path from the ash pan door to the distributors.

The design of the pyrolysis boiler provides for the possibility of cleaning the upper afterburning chamber; for this purpose it is equipped with a special door. The spaces of both chambers are connected to each other by a channel through which gases rise for combustion. The outer shell of the housing is a water jacket, heated by both fireboxes. To supply coolant to the heating system, threaded pipes are cut into it. Water temperature and pressure are controlled using instruments installed on the front panel.

The chimney for a pyrolysis boiler is no different in its design from the pipes for the emission of combustion products of classical units. One of the requirements is sufficient draft for the boiler to operate. Most simple design The unit does not provide for the installation of a blower fan, so combustion occurs due to natural draft. The second requirement is that the part of the pipe located on the street be insulated. Reason – low temperature flue gases (up to 150 ⁰С), therefore there is a very high probability of condensation forming on it and rapid destruction of the pipe material.

Description of the operation scheme of pyrolysis boilers

A complete picture of the operation of the unit can be given by circuit diagram pyrolysis boiler. First, the main firebox is loaded with fuel and ignited. In this case, the ash pan damper is open as much as possible. After the firewood starts to burn, the door begins to close, the burning process slows down and turns into smoldering. Then the intensive release of wood gas begins, which rises and enters the secondary afterburning chamber. Heated air is supplied there through many calibrated holes. The latter enters the channel from the same opening under the ash pan lid and along the way receives heat from the hot wall of the firebox.

The entire technological process proceeds thanks to the natural draft created by the chimney, so the speed of movement of air and flue gases in the channels is low. The operating principle of a pyrolysis boiler is that in the secondary chamber, heated air enters into a thermochemical reaction with wood gases and ignites them. As a result, not only gases are burned, but also small volatile particles, making the smoke from the chimney almost invisible. In fact, pyrolysis fuel combustion is more environmentally friendly than traditional combustion, since its combustion products contain much less carbon and nitrogen oxides, as well as ash particles.

The firewood in the firebox burns more slowly than usual, so one load can be enough for 10–12 hours of operation, depending on the power of the gas generating unit and the moisture content of the wood. Setting up a pyrolysis boiler involves limiting the supply of combustion air. Too little of it will not allow the thermochemical process to begin in the secondary firebox, and too much will cause incomplete combustion gases and a decrease in the efficiency of the unit. For a device operating on natural draft, you will need to adjust the air flow in each individual case, since the height and diameter of the chimney pipe can vary greatly. Accordingly, the traction force will be different. In some cases, it should be increased by raising the pipe to a greater height.

If the chain drive of the ash pan lid is equipped with a thermostatic regulator, then setting the device is reduced to setting the desired coolant temperature. The thermoelement built into the water jacket of the gas generator unit acts on the chain drive depending on the water temperature and closes or opens the damper itself, regulating the combustion intensity.

To create artificial draft that will not depend on the parameters of the chimney, pyrolysis-type boilers are additionally equipped with a blower fan and an automation kit that regulates its operation. If a conventional unit can operate with an efficiency of about 85–90%, then a blowing machine helps to develop it to 93%. There is a disadvantage here - dependence on external energy sources.

Advantages and disadvantages

Heat sources of this type have many advantages:

• The operating principle and operation of pyrolysis boilers allows achieving excellent combustion efficiency indicators solid fuel– 90–93% efficiency.
• The process is more environmentally friendly, and much less is emitted into the atmosphere harmful substances.
• The interval between fuel loadings is no less than for long-burning units - 12 hours; you will have to work as a fireman no more than 2 times a day.
• Maintenance and cleaning of the unit are not a problem, the entire interior space is accessible, and many units are equipped with drawer ash pit. The principle of operation of the pyrolysis boiler is practically waste-free; very little ash and ashes remain, so the operation must be performed infrequently.
• Economical. Approximately fuel consumption per 100 m² of premises with a height of up to 3 m is 10 kg per day.
• Installations operating on natural draft do not depend on the availability of electricity in the network.

Like any other device that runs on solid fuel, a pyrolysis heating boiler needs protection from boiling of the coolant inside the water jacket. This can lead to shell rupture and costly repairs. For this reason, manufacturers install additional water cooling heating elements on their products, which can simultaneously serve as a source hot water for household needs.

The disadvantages of pyrolysis-type units include the following:

• Fuel with a low moisture content is required; the moisture content of firewood should not exceed 25%. The process of intensive release of gases for afterburning is very difficult if the firewood is frankly damp. This negatively affects the operation of the pyrolysis boiler, reducing its efficiency.
• Operating practice shows that deposits of tar and resins appear on the walls of the primary chamber over time, since the temperature in it is relatively low, and birch or wood is most often used as fuel coniferous species. This deposit must be removed periodically; it makes it difficult to transfer heat to the water jacket.
• The cost is higher than that of a classic solid fuel boiler. This is justified, because the process technology is more advanced and gives high performance that will allow savings during operation.

Conclusion

When choosing a heat source for your home, it is better to focus on products of the mid-price category; you should not save much in this matter. After all, the comfort and warmth of your home depends on how the pyrolysis boiler works.

Solid fuel boilers "Suvorov" are modern heating equipment for private homes and industrial buildings. The models are distinguished by long-term operation in autonomous mode and reduce the cost of purchasing fuel and maintenance.

Purpose of long-burning solid fuel boilers

Long-burning boilers are used for heating premises different sizes. The lineup allows you to select a device with a capacity from 10 to several hundred kilowatts. This is enough to heat an area from 100 to 4300 square meters respectively.

Heating of the room is carried out both through closed system with forced circulation of coolant, and through open - with natural movement of liquid.

The main difference between the Suvorov gas generator boiler and its analogues is the power adjustment depending on weather conditions. This provides a comfortable temperature in the off-season. IN basic configuration The model is intended only for heating, but it is possible to install domestic hot water.

Additional circuit for hot water supply

A stainless steel DHW circuit is built into a standard single-circuit boiler, which will provide heating of water in the required quantity. At the same time, models of different capacities are able to prepare different volumes of hot water per unit of time:

• 10 kW - 200 l/h;
• 15 kW - 250 l/h;
• 20 kW - 300 l/h;
• 30 kW - 400 l/h.

When preparing a large amount of hot water, the parameters of the double-circuit boiler are adjusted. Since the maximum power of the device is limited, the supply of coolant to the system is reduced. This allows you to increase the temperature of the supplied water by 35 degrees.

Operating principle of solid fuel boilers

The main structural difference between devices of this type is the additional combustion chamber where wood gases are burned. The process is accompanied by the release of a large amount of thermal energy, which in conventional solid fuel boilers is thrown into the chimney along with combustion products.

Suvorov boilers are equipped with a system for stabilizing operation at different capacities. It is a two-stage damper that regulates the air supply to the main combustion chamber. This slows down and maintains the combustion process at the same level for a long time, which guarantees:

• comfortable heating in the off-season, preventing high temperature coolant;
• working for many hours on one stack of firewood.

It also provides control of the ratio of primary and secondary air for maximum afterburning of wood gases.

In addition to the draft regulator, the Suvorov-M models use a special device that ensures that the flue gas temperature required for afterburning is maintained while the generated power decreases.

Waste

Service does not take much time. Wood waste burns without residue, and the ash accumulates in a special compartment - the ash pan, located at the bottom of the device.

During periodic operation at full strength, resins and soot do not accumulate on the internal elements, so the combustion chamber does not need to be cleaned. If the unit worked for a long time at low power and, after increasing it, did not reach the nominal power, the device needs to be cleaned. To access the internal volume, simply remove the top cover.

Advantages of long-burning pyrolysis boilers

Thanks to advanced technical specifications solid fuel boilers have a number of advantages:

• Selection of models with rated power from 10 to 400 kW.
• Possibility of use in systems with natural and forced circulation.
• Efficiency - at correct selection fuel provides high efficiency (up to 92%).
• A modern automatic regulator that allows you to maintain power 5 times lower than the rated one.
• Capacious firebox volume, ensuring continuous combustion from 14 to 36 hours.
• Durability - the manufacturer provides a three-year warranty. Lining of the side walls extends the service life of the firebox.
• No need for regular cleaning.
• It can be equipped with a heating element or a DHW circuit.

Types of fuel used in solid fuel boilers

• firewood;
• briquettes

Efficiency directly depends on the characteristics of the fuel. Dry wood provides greater productivity and long battery life without reloading fuel. The maximum recommended fuel moisture content is 25%, the optimal value is 4-10%.

Features of the models

The Suvorov wood-burning boiler was the first to appear on the market. The main advantage of this device over analogues is operation at low power (up to 20% of the rated power). The effect was achieved thanks to the design features of a two-stage damper that regulates the air supply to the firebox.

Working to improve the model, the manufacturer created a modification of the Suvorov M, the advantages of which were:

• long-term operation without cleaning - ensured by the shape of the gas path and heat-reflecting elements on the side walls of the firebox;
• increased efficiency - achieved thanks to flue gas temperature control technology;
• increased battery life;
• large firebox capacity.

Even more powerful boilers were also developed compared to model range"Suvorov".

Installation and connection of heating equipment

Installation and connection are carried out in accordance with current regulations and legal acts by persons with appropriate qualifications. After installation, the installation company's employees make an entry in the warranty card; without it, the warranty is not supported.

If you choose solid fuel boilers for your home, we recommend paying attention to long-burning pyrolysis boilers. Pyrolysis boilers They are the same solid fuel boilers, but their difference is a much longer operating time and heat generation. Engineers were able to create a design in which pyrolysis boilers produce more heat with the same volume of fuel. This process is called “gas generation”, and the boiler, accordingly, is called “gas generator”.

Unit design

• Wood-burning pyrolysis boilers have 2 combustion chambers. The upper chamber is used to load firewood into it. After laying, they are set on fire and begin to burn. All pyrolysis boilers are equipped with a special controller that fully controls the combustion process. The controller also controls the built-in fans and circulation pump. All this electronic and mechanical filling creates all the conditions for the smoldering of firewood after it has begun the process of active combustion.
• When wood smolders, both smoke and wood gas begin to be produced. By turning on the fans, this gas is directed into the lower combustion chamber through special openings. Through the controller, you can set any operating mode you need and the desired temperature in your heating system. When switching to pyrolysis mode, the controller turns on the pump, which increases the efficiency of these long-burning solid fuel boilers.
• The design of long-burning pyrolysis boilers conveys quality, simplicity, reliability and durability. They use high quality boiler steel. Such steel has sufficient thickness and the necessary mechanical characteristics, which will allow the boiler for a long time maintain original appearance. This is very important under the condition of constant thermal loads, as well as regular heating and cooling to different temperatures at different time intervals.

Long-burning pyrolysis solid fuel boilers are becoming more and more popular and are increasingly used for heating private houses of various sizes, country houses and country houses, cottages, service stations, car washes, various warehouses and industrial facilities of various sizes, as well as all kinds of educational institutions. The units have already received many positive reviews from enthusiastic owners.

Heating with a pyrolysis boiler: where is it useful?

Pyrolysis boilers are perfect for heating any facility due to the very wide range of available capacities, which can vary from 15 to 100 kW or more. It is proposed to equip high-power boilers with a bunker, which will automatically supply fuel in the required volume. This makes these boilers even more pleasant to use and saves maintenance time.

Keep up with the times - purchase modern heating systems and enjoy new technologies for warmth and comfort. In our online store you can buy any heating equipment on favorable terms. Even the most demanding user will be pleased with both the price and the possibility of delivery to any corner of Russia.

Fuel

Pyrolysis boilers are effective on fuel with a high yield of volatile substances - wood (firewood, wood waste, fuel briquettes and pellets), brown coal; Some models consume coal (class "walnut 1" or "stone") and even coke. This type of boiler has sufficient high requirements to fuel moisture - for firewood no more than 20-35%. This is due to the fact that water vapor dilutes the pyrolysis gases and interferes with combustion (see below); when operating on wet fuel, the power drops sharply or the boiler goes out altogether. In situations where there is no dry fuel, this is a serious disadvantage.

This is interesting: Wall gas boilers heating

Pancake thickness

This value is in inverse proportion to internal diameter D. It is necessary to achieve optimal piston pressure on the fuel filler. If the pressure is insufficient, this will lead to a decrease in the reverse action coefficient. As a result, the firebox may backfire with further smoke escaping through the chimney. If the piston is very heavy, this will significantly reduce the amount needed for high-quality combustion. air gap: This will cause the flame to go out.

The relationship between the internal diameter and thickness of the pancakes is approximately as follows:

• 30 cm – 6-10 mm.
• 40 cm – 6-8 mm.
• 60 cm – 4-6 mm.
• 80 cm – 2.5-4 mm.

Design and principle of operation of the boiler

It was already said earlier that boilers of this type have chambers. The firebox is divided into a gasifying chamber into which fuel is loaded and directly into the combustion chamber.

The diagram below shows the internal structure of a solid fuel pyrolysis boiler

Fuel is loaded into the first chamber, where the air flow is limited. The boiler starts and operates normally. During slow combustion, the fuel begins to pyrolyze, wood gas is released, which enters the second part of the firebox, the combustion chamber. From this moment the solid fuel boiler enters operating mode. Now the processes begin that fundamentally distinguish the pyrolysis type of combustion, solid fuel heating boilers long burning from the direct combustion process and from traditional boilers.

In the first chamber, heat loss is minimized. Typically, in models of long-burning solid fuel boilers, the space between the first and second chambers is filled with grates on which fuel is placed.

The second part of the firebox is the combustion chamber, where combustible wood gas enters. The chamber is filled with secondary, heated air. The principle of double blowing is already in effect here.

After the boiler reaches normal operating mode, air access to the first chamber is significantly limited. The combustion process practically stops, turning into a state of smoldering. The fuel burns out gradually. Each previous layer of fuel gradually involves the subsequent layer in the smoldering process. Slow smoldering is accompanied by the constant release of wood gas. Due to this process, solid fuel pyrolysis boilers are also commonly called long-burning boilers.

In the second, main combustion chamber, only wood gas burns, which, when in contact with secondary air (heated to 3000 C), produces a huge amount of thermal energy. Only now does thermal energy come into play, heating the coolant circulating in the heat exchanger. That is, in the design of solid fuel pyrolysis boilers, heating of the coolant is carried out not due to the direct combustion of solid fuel, but through the combustion of a secondary combustion product - pyrolysis gas, fuel gaseous substance. This is the main difference between boilers of this type and solid fuel boilers of other types.

What is meant by pyrolysis?

Pyrolysis - the generation of flammable gas and its subsequent combustion - occurs in all solid fuel boilers, to a greater or lesser extent. The same process occurs in a conventional stove - when burning wood or coal, in some place there is not enough oxygen, a carbon monoxide CO, then it finds the missing oxygen and burns, releasing heat, turning from poison to normal carbon dioxide– CO2.

As experiments back in the 1950s, a boiler equipment scheme was developed, where first the fuel smoldered with a lack of oxygen, then the resulting CO was burned in a secondary chamber. But the ideas were not implemented, as they did not provide any advantages with significant disadvantages and were expensive.

How to make a pyrolysis boiler with your own hands

The technological process of manufacturing a boiler based on the pyrolysis operating principle includes performing plumbing and welding work.

Required materials and tools

To manufacture a high-quality unit, experience in working with the following tools is required:

• electric welding machine;
• electric drill;
• Angle Grinder;
• set of plumbing tools - square, level.

Materials and components required:

• sheet, thickness 4 mm, 7.5 m²;
• pipe - 8 m (diameter 57 mm, wall thickness 3.5 mm);

steel strip (thickness 4 mm, width 20 mm) - 7.5 mp;
steel strip (thickness 4 mm, width 30 mm) - 1.5 mp;
steel strip (thickness 5 mm, width 80 mm) - 1 mp;
fireclay (fireproof) brick - 15 pcs;
professional pipe 60×30 (wall thickness 2 mm) - 1.5 MP;
professional pipe 80×40 (wall thickness 2 mm) - 1 MP;
cutting wheel d 230 - 10 pcs.;
grinding wheel d 125 - 5 pcs.;
electrodes - 5 packs;
temperature sensor.

It automatically performs manipulations with the damper: opening (to increase the combustion temperature) and closing (when the temperature reaches the maximum value)

A temperature sensor is a mechanical device that controls the amount of air passing into the combustion chamber.

The productivity of the boiler depends on the functioning of the chimney. To ensure good draft, the chimney must meet the quality requirements:

• height not less than 5 meters;
• good insulation;
• no sharp bends;
• condensate drainage;
• easy access for cleaning.

Device drawings and diagrams

A pyrolysis boiler without forced ventilation has the most simple diagram. The non-volatility of the design reduces the cost of operating the unit.

The diagram of a pyrolysis boiler with a natural smoke exhaust looks like this:

To increase high efficiency, some designs have double base walls

The boiler consists of three main chambers:

• loading room, used for adding fuel;
• afterburner chamber where secondary air is supplied;
• heat exchanger exiting into the pipe.

The combustion of raw materials directs the gas flow from top to bottom. When air is supplied under the grate into the fireclay brick array, flammable gases are burned. The decomposition products go through the heat exchanger into the chimney. The draft is adjusted by a temperature sensor at the boiler outlet using a chain connected to the secondary air supply damper.

Detailed details with dimensions and tolerances can be found in the standard drawing:

A - boiler circuit controller; B - loading door; C - ash pan cover; D - smoke exhaust; E - coupling for temperature fuse sensor; F - safety valve pipe; G - supply line of the circuit; H - cold water supply to the heat exchanger; L - return line of the boiler circuit; M - expansion tank

Step-by-step instructions for manufacturing the unit

Making a pyrolysis boiler with your own hands is divided into stages:

1. According to the drawing, parts for the body are marked and cut. After “sticking” the elements, a control measurement is made, then welding seams are made. Once in place, the back panel and side walls are welded on both sides, cleaned, and treated with welding sealant.
2. The heat exchanger pipes are being installed.
3. After welding the outer wall and door shells, a mechanical coolant control regulator is installed.
4. The chimney is assembled by extending the pipe. The next part must be inserted inside the previous one so that condensation does not fall on the outside. Finished design painted with fireproof paint.

Operating principle of a pyrolysis boiler

The chemical process of wood decomposition under high temperature influence (from 200 to 800 °C) with limited access of oxygen is called pyrolysis

The operation of the pyrolysis boiler is based on the principle of dry distillation. Heating wood with a lack of oxygen leads to the formation of wood coke and gas. The resulting gas ignites when mixed with oxygen. At the same time, interaction occurs with carbon. The combustion products leaving the boiler contain a reduced amount of harmful substances. The solid part of wood, when burned, releases thermal energy.

The pyrolysis effect can be obtained from the combustion of various types of fuel:

• firewood (blocks no larger than 450×250 mm);
• chopped branches;
• briquettes;
• sawdust;
• pellets (wood pellets);
• peat;
• coke;
• coal.

Wood is the most efficient look fuel issuing a large number of pyrolysis gas. Branches and sawdust can be mixed with firewood in an amount not exceeding 25% of the total volume in order to maintain efficiency (coefficient useful action) at a high level.

The difference between the design of pyrolysis boilers and traditional ones is the presence of two combustion chambers: fuel (gasification) and combustion.

As a result, charcoal and gas are formed, accompanied by the release of a large amount of thermal energy.

The designs of pyrolysis boilers differ depending on the method of air supply: natural, using chimney draft, and forced, pumping air with a fan.

In natural draft installations, the secondary chamber is located above the main firebox and the air flow passes from bottom to top. With artificial draft, it’s the other way around: the main firebox is under the secondary chamber and the air direction is from top to bottom.

Why is it needed?

Pyrolysis boilers are becoming increasingly popular due to the rising cost of other energy sources. Heating space is becoming more and more expensive. Firewood is the cheapest type of fuel for traditional boilers, but a lot of it is required.

Using additional energy from the combustion of gas released during wood pyrolysis allows one to obtain significantly more thermal energy.

Compared to boilers operating on other types of fuel, devices of the pyrolysis operating principle have the following advantages:

• reduction of air consumption for the gas combustion process;
• less waste - soot and ash;
• reduction by 3 times of the release of harmful substances and components;
• increasing the boiler operating time (time interval between fuel loadings (up to 12 hours);
• the ability to adjust the boiler performance within 30–100%;
• facilitating the process of controlling the combustion of pyrolysis gas.

Features of a long-burning stove

The first step is to understand what happens when wood burns. For a flame to appear, the temperature of the wood must be brought to approximately +150 degrees, using external source heating. Usually, a piece of paper lit from an ordinary match is enough for this. After this, the process of slow charring of the material begins, which, after reaching +250 degrees, begins to decompose into simple chemical elements. The white smoke that appears when a flame is ignited includes gas and water vapor: they are emitted by heated wood. Ignition of the released gaseous components is observed when heating reaches +300 degrees: as a result of this, the thermochemical reaction is significantly accelerated.

The breakdown of organic matter into simple elements called pyrolysis. Practice shows that during the combustion of wood, part of the energy potential inherent in it remains unused. This is reflected in a significant amount of waste remaining after the flame goes out. In pyrolysis furnaces, fuel is used much more efficiently, which is achieved by separate combustion of gases released during fuel combustion. At the same time, the rate of smoldering of the wood itself is very low, which helps to increase the operating time of the stove on one stack. The Bubafonya stove, which is a type of pyrolysis heater, guarantees almost complete combustion of all fuel.

Long-burning pyrolysis boilers with a water circuit

Long-burning pyrolysis boilers with a water circuit are an excellent alternative source of energy in private homes in conditions of frequent gas supply interruptions.

A long-burning solid fuel boiler with a water circuit can operate on wood and other types of solid fuel: coal, wood waste, etc.

The main disadvantage of this type of boiler is the high price. In addition, unlike many other types of boiler equipment, a long-burning pyrolysis boiler with a water circuit is most often energy-dependent.

Not only are they powered by electricity circulation pump and control devices, but also a built-in fan: this equipment, as a rule, does not work on natural draft.

Solid fuel wood and coal boilers are second only to gas boilers in popularity. However, they have one serious drawback - fuel must be loaded several times a day.

During normal combustion of wood, the efficiency of boilers does not exceed 75%, and some of the flammable substances simply fly away into the chimney.

Long-burning pyrolysis boilers with a water circuit are much more practical and efficient.

It will not be a secret to anyone that pyrolysis heating boilers are currently very necessary and in demand heating system devices. It is for this reason that many of our people have become interested in these particular units.

A pyrolysis boiler is a special heating boiler that can use pallets, coal, wood, and other materials as fuel.

One of the main criteria, depending on which heating boilers are divided, is the type of fuel on which they operate. Thus, in today’s market you can find boilers based on pallets, coal, and wood. You can also find so-called universal boilers for yourself.

The most common at the moment are wood-burning solid fuel boilers, which have many advantages. The first is that fuel is considered the most affordable. It should also be noted that such boilers are sold at reasonable prices.

A distinctive feature of pyrolysis boilers is control of the oxygen level in the combustion chamber, and accordingly control of the temperature and rate of fuel combustion. A solid fuel pyrolysis boiler will ensure your independence from gas and electricity, since the costs of these energy sources significantly exceed the cost of solid fuel.

This is interesting: How to fill a self-leveling self-leveling floor - we explain it step by step

Foundation construction

The foundation for the Bubafonya stove is laid in this way:

1. The first step is to dig a square hole. Her approximate dimensions– 150x150 cm, with a depth of 20-30 cm.
2. The bottom of the trench is covered with a cushion of crushed stone and filled with concrete solution. A trowel is useful to level its surface. When the filled area has set, it is necessary to check the horizontalness of its surface using a building level. If necessary, additional adjustments are made.
3. Refractory bricks are laid in several rows on top of a completely dry concrete base. Usually 2-3 layers are enough.

Strengths and weaknesses of Bubafoni

The pyrolysis stove has a number of positive qualities:

• Simplicity of design. Having welding skills and experience working with metal, building a stove will not be difficult.
• Universalism. Bubafonya is very unpretentious in terms of fuel: you can throw firewood, coal, sawdust, chips and other types into it wood waste. The stove also copes well with pellets – inexpensive, environmentally friendly granules.
• Duration of work. The time it takes for one stack of firewood to burn out is almost a day: during this time, the stove regularly generates heat. This indicator may vary depending on the modification of the device, the volume of its firebox, the oxygen circulation rate, etc.

It is also worth mentioning the main disadvantages of Bubafoni:

• Low efficiency. The reason for this is uneven heating of the device body with a fairly low heat transfer. More “advanced” pyrolysis furnaces are much more efficient in this regard: their efficiency often exceeds 90%.
• Inconvenient to clean. There is no ash pan as such in the design, so the remaining combustion products are removed through the top. Some modifications of the stove are equipped with a door at the bottom, which facilitates the procedure for removing ash and ash.
• Low aesthetics. The appearance of Bubafoni can hardly be called beautiful, so it is mainly used for heating utility rooms.

Drawing up a drawing

Main proportion during production homemade stove Bubafonya from a gas cylinder is a mathematical ratio of the parameter of the internal diameter of the body and its height. It should be between three and five to one. The optimal diameter is from 30 to 80 cm.

Making the diameter of the stove body less than 30 cm is not effective, since oxygen will circulate too quickly through the combustion chamber without fully reacting with the wood. This leads to a noticeable decrease in the efficiency of the device. In chambers with a diameter of more than 80 cm, another problem arises - in it, the firewood on the edge burns very slowly, and in the center - faster. As the fuel burns out, a hole appears into which the piston descends. As a result, the flame gradually fades away. In the drawing, it is more convenient to denote the diameter by the letter D, and the height by H.

Fuel types

Aspen euro firewood

One of the most positive properties of pyrolysis boilers is that they can be operated efficiently using any solid fuel.

This can be black and brown coal, as well as wood and peat, etc.

Of course, with each of these types of fuel, a pyrolysis boiler is capable of operating for a certain time until it completely burns out.

The combustion times of different fuels are as follows:

• brown coal – 8 hours;
• hardwood – 6 hours;
• soft wood – 5 hours;
• black coal – 10 hours.

As observations show, the most effective fuel for a pyrolysis boiler is dry wood. With a length of 45-65 centimeters, it allows the boiler to function most efficiently and increases its operating time.

But if these types of fuel are not available, any type of fossil fuel can be used.

Fuel briquettes

Of course, if it is approved for use in such a boiler.

Permitted fuel types include:

• briquettes and pellets for heating;
• wood waste;
• industrial waste containing cellulose;
• some types of peat.

When heating, it is necessary to take into account that if the flow of primary and secondary air is selected correctly, and the air humidity is not higher than permissible, then no by-products will be released during combustion.

Be careful: if the humidity is high, then the release of strong water vapor is inevitable, which means that tar and soot will inevitably appear, the calorific characteristics of the gas will deteriorate and the boiler may fail.

Scheme, features of work

Secondly, in the 2000s, when the average manufacturer had sufficient production capabilities and materials, production began at the household level. The false story aroused interest in the consumer, and sales and profits appeared.

The design of a pyrolysis boiler is usual - in a large chamber, a load of firewood first flares up, then the automation shuts off the air and if there is not enough air, the firewood smolders long time. The released carbon monoxide and a large number of ash particles - pure carbon C - mix with heated air in the secondary chamber, where they burn out.

This burner always has a reddish flame - a direct sign of a reaction involving carbon.

How to increase the efficiency of a pyrolysis furnace

Basically, the efficiency of Bubafoni decreases due to uneven heating of its body; this leads to a deterioration in the efficiency of heat exchange between the device and the surrounding space. There is a fairly simple way to optimize the process using corrugated metal sheet. An improvised jacket for the body is made from it: it is fixed over the cylinder by welding or twisting.

Another popular option for increasing the efficiency of a pyrolysis furnace is the Bubafonya boiler with a water jacket. Most often, the water circuit is made from a metal barrel or box, pouring water into it. By placing red-hot Bubafonya inside the manufactured structure, you can heat the water and let it go inside the heating system. In this way, it is possible to acquire a kind of boiler for heating a large room.

When creating a water jacket, you must take all necessary measures to make it as reliable as possible. If a box is used for these purposes, it must be well welded to avoid leaks. It is advisable to seal all seams with heat-resistant sealant. The recommended thickness of the steel sheet for making a water circuit is at least 3 mm. It is best to close the top of the box with a lid with handles. The Bubafonya long-burning stove with a water jacket can be additionally equipped with a heat exchanger consisting of thin tubes.

There are several useful tips for better quality and safe operation long-burning gas cylinder stoves:

• It is best to install the device indoors on a sheet of metal.
• The space around the stove must be cleared of any flammable objects.
• When igniting fuel, it is not recommended to abuse flammable liquid.
• The body of the product gets quite hot, so when servicing the heater you need to wear thick gloves.
• To extinguish the flame, the damper on the air pipe is closed.
• Painting parts of Bubafoni is strictly prohibited.

A homemade pyrolysis oven from a gas cylinder is one of the most popular manufacturing options. It captivates with its cheapness and simplicity. All materials can be easily found at any dacha.

It won't heat big house, but for a small dacha, garage, greenhouse - just right.

Such a stove can easily cope with heating a room of 100 m2. Often used for heating greenhouses, garages, warehouses. Does not require a foundation, but the foundation still needs to be prepared. At a minimum, level and cover with a metal sheet of at least 4 mm thickness.

It is also important to follow all rules during installation. fire safety. The distance to combustible objects should not be closer than 50 cm

Wooden surfaces are additionally protected with fireproof fabric.

Oven operation

Before igniting the Bubafoni, it is necessary to remove the welded air duct from inside the housing, first removing the top cap. Wood logs are placed inside the stove in a horizontal position, close to each other. When stacking vertically, some obstacles may arise in the path of the piston movement: this usually happens in cases where the logs are not completely burned. As a result, smoldering in the primary chamber will develop into full combustion, which seriously impairs the proper functioning of the stove. In this case, firewood is consumed much faster, and smoke begins to seep out of the air duct. When laying logs, it is prohibited to block the area where the chimney is welded.

A layer of chips, sawdust or chopped branches is poured onto the firewood. On top of them you need to put old cloth or paper soaked in kerosene. A piston is installed end-to-end on the fuel filler and a cap is put on. To light firewood, you need to light a piece of rags or paper and throw it inside through the air pipe. Matches are ineffective in this case, since they go out before they can reach the fuel. After lighting the firewood, pause for 15-20 minutes, allowing it to flare up well. When the flame gains strength, the valve on the air pipe should be closed: thus, Bubafonya is transferred to the main operating mode.

A little history

The development of the Bubafonya stove is attributed to folk craftsman Afanasy Bubyakin from Kolyma. Subsequently, a new invention was named in his honor. During his experiments, Afanasy relied on the design of the Lithuanian-made Stropuva pyrolysis boiler.

The domestic inventor tried to simplify the design as much as possible so that it could be built with your own hands. This specificity of Bubafoni explains its high popularity. Considering that the material for the manufacture of this device is mainly improvised means, it cannot boast of external aesthetics. Strengths stove is its simplicity, efficiency and reliability.

Pyrolysis boiler from a gas cylinder instructions

This design is popularly called Bubafonya. This was the nickname of the inventor and craftsman from Kolyma, who was the first to post the idea online.

A moving piston divides the combustion chamber into two segments: the wood burns below and the pyrolysis gas burns out from above.

In such a boiler, wood burns with virtually no residue.

Air movement is directed from top to bottom. Burning occurs much slower than in a traditional boiler.

Oxygen enters through a pipe that serves as a rod for the piston. To burn the pyrolysis gas, oxygen enters through the holes where the piston tube is inserted into the lid. The connection does not have to be airtight. The separation of the chambers ensures combustion of the entire volume of fuel.

The combustion intensity is adjusted through a pipe connected to the piston ring. For convenience, a pin with a movable metal disk, the size of which is slightly larger than the diameter of the pipe, is welded to the pipe. By adjusting the gap between the pipe and the disk, the desired temperature is achieved.

To make Bubafoni you need the following materials:

• a cylinder with a volume of at least 50 liters;
• fittings;
• strip of metal (steel).

The device consists of parts:

Assembly and welding work

Assembly and welding work should be carried out according to the instructions:

1. Cut off the rounded part of the cylinder, obtaining a body and a lid. Sand the cut areas with a grinder. Cut a loading hole on the side to supply fuel.
2. Make a grate from the reinforcement through which burnt firewood will spill out.
3. Make a piston: k iron disk weld the blades on one side, the pipe on the other.
4. Install the chimney. For better traction, you can use a gradual increase in the diameter of the pipe in the direction from beginning to end.

Cover the structure with fireproof paint.

The combustion process sets the blades in motion. Air vortex flows are created, but the disk prevents the flame from increasing. The result is a pyrolysis effect from smoldering firewood for 8-10 hours. Fuel is loaded once a day.

Such a boiler can heat a large room. It runs on different types of solid fuel:

Obtaining more thermal energy from wood makes the use of pyrolysis boilers more and more attractive. Having skills in plumbing and welding work, you can do heating unit pyrolysis operating principle with your own hands according to drawings and diagrams or from an old gas cylinder.

How to make a pyrolysis boiler with your own hands from a gas cylinder step by step instructions

First you need drawings of homemade pyrolysis boilers. They are found in the relevant literature or on home crafts websites.

It is important to consider units with detailed video and reviews from real owners who improve their own invention during operation. Materials and tools you will need:

1. Steel sheets and profile pipes with a thickness of 3 mm. If it is less, then over time the combustion temperature of the wood will deform the unit and render it unusable during operation, which is fraught with the risk of burning out the walls and creating a fire hazard.
2. Welding machine direct current and corresponding electrodes.
3. Drill with diamond bits and Grinder with similar disks.
4. Boiler components: doors, ash pan, blower fan.

Depending on the design and drawings, the models of units differ. If you create a pyrolysis furnace with your own hands - the heating device holds heat better, unlike iron, then fireclay bricks and asbestos or paranite sheets are added to the described set.

Algorithm or step-by-step instruction consists of the following points:

• The prepared steel sheets and profile pipes are cut according to the intended dimensions. The edges of the workpieces are carefully passed with a diamond grinding wheel - welding will be easier and the risk of injury will be reduced.
• The body is welded - the end blank is laid on a horizontal surface, and the walls, bottom and lid are attached to it with tacks.
• Inside the boiler there is a firebox with a grate. A nozzle is welded in the middle to remove waste olefins - gases with high temperatures.
• The cooling system is being assembled. It consists of several profile pipes, extending beyond the boiler.

WATCH THE VIDEO

All that remains is to weld the front wall, equipped with a blower and loading door, onto the heating boiler with your own hands, install the unit on the appropriate frame and carry out tests.

Install the boiler with your own hands on a concrete plane, poured level and covered with asbestos sheets. If there is no possibility for pouring - the weight of the concrete affects the foundation, then the floors are dismantled, laid out with bricks, covered with paranit and covered with sheet iron. Thus, the safety of the improvised boiler room will be maintained. Making a pyrolysis boiler with your own hands is easy, you just need to try a little.

Design

The Bubafonya long-burning stove includes the following components:

1. Frame. The main element of the device, usually shaped like a cylinder. It is most often made from cylinders, barrels, large fire extinguishers, thick welded pipes, etc.
2. A chimney through which combustion products are discharged. The material for its manufacture is usually metal pipe diameter 110-250 mm. It is fixed by welding to top part ovens.
3. Piston. Ribs are welded onto the lower part of the metal circle: the air duct pipe is fixed in its central part. Due to the ribs, an additional layer of air is created that separates the fuel and the piston. This makes the smoldering process more efficient and stimulates the active release of pyrolysis gases.
4. Regulator. Thanks to this valve, oxygen is supplied inside the firebox.
5. Lid. It has holes for the air duct, forming, in combination with the piston, a secondary combustion chamber. Inside this compartment combustion of pyrolysis gases occurs.

How to assemble a structure with a water jacket

The manufacture of the chimney is carried out in the following sequence of operations:

1. Carefully cut the balloon at the top. The resulting cap is subsequently used to make a lid for the boiler.
2. The bottom of the cylinder is equipped with homemade legs. Each of them must be exactly level before fixing.

The piston is constructed in three stages:

1. A steel circle is cut out: in cross section it should be approximately 35-45 mm smaller than the internal diameter of the cylinder. Thanks to the side gaps, pyrolysis gases will leak into the secondary chamber without interference. In the center of the circle there is a hole for the air duct: this pipe should be inserted into it quite tightly.
2. Next, the metal circle and pipe are welded to each other.
3. A piece of channel is welded on top of the piston base.

To make a furnace lid, you can use the upper cut part of the cylinder. On its surface, markings are applied for the air duct pipe with a fixed supply piston. In this case, it is necessary to provide a certain margin for the free movement of the pipe. Cutting is done along the drawn lines. On the side, the homemade lid is decorated with handles, for which fittings bent in a vice are used. Now you can begin installing the chimney at the top of the improvised pyrolysis oven. Using a grinder, a cut is made for the pipe blank: welding is also used to fasten the parts.

At this point, the main part of the work on the construction of Bubafoni is considered completed: it can be put into operation. It is advisable to install the stove on a pre-arranged foundation.

conclusions

Having considered how to make different types of pyrolysis furnaces, we can summarize that it is realistic to make only a structure from a gas cylinder. You won’t be able to build a brick oven yourself; it’s too difficult. A camping option made from cans also has a right to exist, but it can only be made at home; this cannot be done in the field. And finally, the exhaust furnace is simple but dangerous and requires very careful and careful operation. The risk is quite high, so we do not recommend it for heating a garage.

With the onset of winter cold, the owners of private households, who bear full responsibility for heating their homes, add more worries. In those rooms where the main heating power is weak or absent altogether (sheds, garages), you have to look for inexpensive alternative methods.

Conclusions and useful video on the topic

This video clearly shows the operating principle of a pyrolysis boiler:

A detailed overview of the operation of a top combustion boiler can be found here:

Pyrolysis boilers are not cheap, but they are fully worth the investment in their purchase. When properly installed and maintained, such devices will provide your home with stable and inexpensive heat.

Are you looking for a pyrolysis boiler for heating your home? Or do you have experience operating such units? Please leave a comment on the article and share your impressions of using pyrolysis boilers. The feedback form is located in the lower block.

How economical is a pyrolysis boiler?

Let's calculate the savings with a pyrolysis boiler for the usual power of an average house. For example, let’s burn 20 thousand rubles worth of firewood in a conventional device over a 7-month season. At the same time, we will save about 1,800 rubles on pyrolysis, and the consumption of firewood will be 18,200 thousand rubles.

But an 80 W fan, having worked for 7 months at a price of about 5 rubles for 1 kW of electricity, consumes more than 1,500 rubles. Total - savings of no more than 200 rubles per year. Those. 50 thousand rubles spent will never pay off.

Even if somehow the savings are 1000 rubles (a miracle efficiency of more than 92%), still 50 years is not a serious period for payback. The biggest maximum is that the additional cost of boiler equipment should pay off in 10 years. Otherwise it is not profitable. There are no such indicators even close. What attracts a consumer’s pyrolysis boiler at this price is a large load!

Comfortable life in the cold season is impossible without heating, unless you decide to spend the winter in Thailand or on some other exotic islands. As for stoves and boilers, a long-burning boiler is a very good alternative to other types of heating devices. It all depends on preferences and goals.

Let's say that in addition to heat in the house you are also interested in hot water supply, in this case you should pay attention to a long-burning double-circuit solid fuel boiler. Also, most likely, you will come across long-burning pyrolysis boilers with a water circuit - unlike the first ones, manufacturers claim that they provide much higher efficiency indicators, because secondary gases will be burned and not released through the chimney. As for the price, long-burning solid fuel boilers Russian production are cheaper than imported analogues.

To facilitate the search among numerous information, we have compiled a small rating of long-burning solid fuel boilers for indoors for various purposes, so all that remains is to choose.

The advantage of such devices is their versatility - one device both heats and heats water. Modern models They are distinguished by high-quality assembly, economical fuel consumption and autonomy. If necessary, they can be equipped with a second circuit or a boiler can be connected.

RODA BRENNER CLASSIC R BCR-04

Cast iron double-circuit solid fuel long-burning boiler, equipped with a cast iron heat exchanger and thermomanometer. The water temperature is regulated mechanically. An anti-condensation pump must be installed. Also, this unit is constantly included in the ranking of the best.

RODA BRENNER CLASSIC R BCR-04

Specifications:

Used in heating systems with natural and forced coolant circulation. I can use it both as the main source and as a backup. The price of the unit is 42,500 rubles.

• affordable price;
• good insulation and heat dissipation;
• the ability to use any type of solid fuel;
• easy to connect by yourself.

Users found no visible flaws.

Long-burning solid fuel boilers - semi-automatic ones from the Nedelka company - will help you pass the cold nights without going down to the boiler room. There is no need to add fuel every 4 hours, because this is a long-burning boiler for up to 7 days, it will work quietly without additional loading - all thanks to the manufacturer’s proprietary technology.

Specifications:

Price 100,450 rub.

• fan and control panel included;
• options: heated floor, boiler with indirect heating.

• not easy to clean, takes about 2 hours;
• condensation inside, corrosion as a consequence;
• high price.

Visman - long-burning pyrolysis boiler is available in gradations from 18 to 45 kW. It is made of cast iron, and the firebox is made of 0.8 cm fireproof steel. It is very easy to control using primary and secondary air dampers. A long-burning wood-burning boiler with a fairly deep clay combustion chamber allows you to fit firewood within 0.5 m in length - this increases the time until the next refueling. The electronic display shows the consumed temperature.

Equipped with a silicon nozzle. Equipped with an automatic limiter that limits temperature fluctuations within the safe standard established by the manufacturer. The number of rotational movements of the fan can be controlled via the panel. Long-burning wood-burning boilers for home heating from Viessmann will provide comfort, warmth and uninterrupted operation.

Specifications:

The cost of the equipment is 138,700 rubles.

• not subject to corrosion;
• protective heat exchanger and smoke exhauster;
• easy to clean;
• can be connected either independently or in addition to the existing boiler.

• high price;
• You need to top up the fuel every 4 hours.

These long-burning pyrolysis boilers with a water circuit operate from one fill to 12 hours, delivering 24 kW. Completely independent of auxiliary energy sources - unscheduled power outages are no longer a problem. The presence of two circuits makes it possible to heat water in addition to heating.

Specifications:

Price 88,000 rub.

• economical fuel consumption;
• All controls are mechanical.

• antifreeze cannot be used;
• frequent cleaning of ash and soot;
• sometimes you come across a flimsy assembly of the body, especially the doors;
• without expansion tank;
• “eats” a lot of wood.

Medium-power, long-burning coal boilers for private homes release accumulated energy to the water circuit through the grate. Pushers are cleaned automatically thanks to a specialized mechanism. The built-in sensor performs thermoregulation of the draft automatically.

Specifications:

Price 44,300 rub.

• the ability to add a heating element with a control panel to maintain heat in the house when it’s cool, but not enough to heat at full power.

• it is forbidden to burn with wood;
• inconvenient location of the thermostat.

The main difference between country units and home units is the absence of the need for frequent fuel refueling. We don’t go to the dacha very often, but that doesn’t eliminate the need to keep it warm. Depending on the chosen model, you need to add firewood into the combustion chamber from once every 3-4 hours and up to 12 hours.

WIRBEL ECO-CKB 25kW

Another long-burning double-circuit solid fuel boiler. Will give warmth to the cottage, country house or a dacha with an area of ​​up to 250 sq.m. Austrian quality guarantees uninterrupted operation from one load, more than 9 hours. The device is combined, which expands the user’s ability to use, literally, any type of fuel. The firebox is made of steel 0.5 cm thick.

WIRBEL ECO-CKB 25kW

Specifications:

Price 148,900 rub.

• built-in boiler 72 l;
• possibility to install burners;
• no separate pump required;
• complete with thermometer, ash pan and cleaning tool.

• after prolonged use it may crackle when turned on;
• a large amount of dust and soot falls on the operator when throwing coal;
• requires frequent cleaning.

The Stropuva company offers long-burning solid fuel boilers. The equipment allows you to heat a room with an area of ​​up to 80 sq.m. One bookmark releases heat for 72 hours - this is only a plus, but coal gives an even more amazing effect - 120 hours. The combustion chamber can accommodate 31 kg of firewood up to 45 cm long at a time, and as much as 88 kg of coal. The manufacturer offers a wide palette, so the device will fit into any interior.

Specifications:

Cost 65,000 rub.

• heated with coal, pellets, briquettes and firewood;
• comprehensive set.

• there is no ash pan;
• tar is formed and gives off a sharp, unpleasant odor;
• short reverse thrust provokes settling of tar;
• Using wet fuel will cause drips on the floor around the unit.

NMK Sibir will help you heat your dacha in the cold season. The technology used allows you not to feed the fire every two hours, because one bookmark is enough for a whole day.

NMK Magnum KDG 15 TE

Specifications:

Price 36,500 rub.

• possibility to equip with additional remote control and heating element;

• mediocre efficiency.

An ideal option for heating greenhouses. Conveniently, the water circuit system is easily connected, thanks to which both the soil and the air inside will be warmed up.

Prometheus 12M-3

Long-burning solid fuel heating boiler made in Russia, made of fire-resistant steel. Equipped with a three-pass heat exchanger, a water jacket and three vertical chambers. The damper is controlled automatically. The device is capable of releasing heat for 8-12 hours, from the moment the combustion chamber is filled. The firebox is lined with fireproof chamotte - this also affects the volume of energy released. Capable of heating a room up to 100 square meters.

Prometheus 12M-3

Specifications:

Price 31,500 rub.

• equipped with an air vent and safety valve;
• Autonomous operation without connection to the mains.

• not intended for wood burning;
• serves no more than 5 years;
• “eats” a lot of fuel.

Long-burning solid fuel boilers from domestic manufacturers consume any type of solid fuel - so there should be no problems with this point. It will ideally fit into utility, industrial or residential buildings with an area of ​​up to 90 sq.m. It can also be connected to gas if you purchase a gas burner.

Specifications:

Cost 28,600 rubles.

• omnivorous, efficient;
• heats up quickly.

• difficulties during installation and cleaning;
• may give off a campfire smell;
• smokes during combustion;
• the combustion chamber is too small.

The design is in many ways similar to a classic stove, but the heated smoke is not directed into the chimney, but is used to heat the stones located in the heater. When choosing, the type of heater and heat exchanger is important. Also pay attention to the operating principle used to heat water.

Katun

The NMK company produces a long-burning Magnum boiler, but in addition to this, it also decent models for a bath. This long-burning solid fuel boiler is an improved version of the Siberia stove. Made from 6 mm fireproof steel sheets. It will “heat up” a bathhouse with a volume in the range of 12-24 m³. Secondary combustion of gases allows you to extend the heat output without additional firewood. The stones used to produce the vapor cloud take 2 hours to heat up.

Sauna stove "Katun"

The dimensions of the stove are relatively small - 78x57x90 cm. The total weight is 160 kg, the weight of the stones reaches 200 kg. Cost 25,000 rub.

• can be heated with brown coal;
• clean glass system;
• cleaning the chimney is much easier due to the structure of the equipment;
• option of equipping with a heat exchanger;

There is only one minus - the price is high for such a little thing.

A wood-burning boiler is suitable for a cozy bathhouse with a volume of no more than 10 cubic meters. Made of heat-resistant steel. On top there is a compartment for heating the stones. The manufacturer recommends using only a certain type of stone so that the heat output is more effective.

The dimensions of the stove are relatively small - 67x42x61.5 cm. The total weight is only 40 kg, the weight of the stones is 20 kg. Chimney diameter 115 mm. Cost 6670 rub.

Plus - affordable price. Minus - not suitable for large steam rooms.

Wonderful long-burning solid fuel boilers from GREIVARI will not leave those who like to take a steam bath indifferent. Long-burning wood heating boilers will quickly heat up a steam room with a volume of 12 m³, thanks to the thickness of the walls of the combustion chamber of 6 mm. The heater can accommodate stones up to 45 kg. Customer reviews are very optimistic, and they are selling like hotcakes.

Unit weight 53 kg. Chimney diameter 115 mm. Price 9200 rub.

• removable ash pan;
• heats up quickly.

Minus - not suitable for large bath rooms.

Buying equipment will not only help keep the car warm, but will also create comfortable conditions for carrying out repair work. Starting a car in the cold season is directly related to the ambient temperature.

Cooper Comfort

A compact, economical long-burning wood-burning boiler operates up to 7 hours from one load. Weighs only 67 kg - installing it yourself will not be difficult. Made from thick steel sheets.

Cooper Comfort

Specifications:

Price 20450 rub.

Plus - universal, safe.

The downside is that installation requires the help of specialists.

Long-burning solid fuel boilers are the choice of garage owners. You can heat it with anything, moreover, you can burn accumulated garbage, and also get heat from seemingly such unnecessary things. A power of 12 kW is enough to heat 120 sq.m.

Specifications:

Cost 25,000 rub.

The compact size is a priority - it takes up a lot of space, but heats up very slowly.

Which is better - a long-burning boiler using coal or wood?

This question is always asked by those who are just thinking of switching to long-burning non-solid fuel boilers. Let's look at the positive and negative aspects of each type of fuel.

In general, these are all the main criteria by which one or another type of fuel is chosen.

VIDEO: What is the difference between a long-burning boiler and a regular boiler?