15 best solid fuel boilers of various types

Recently, more and more people are switching to long-burning boilers. This is due to the constant rise in oil and gas prices, which may also be temporarily blocked due to problems. It’s no longer a secret that investing in boilers is a very profitable investment, since this equipment can operate on cheaper materials, such as coal, wood or coke. In this article we have presented the best models of solid fuel boilers that were released in 2021.

Rating of solid fuel boilers

In this list you will find models with long-burning support from the most famous manufacturers. Such boilers can be placed in both residential and non-residential real estate. Many different companies are constantly releasing new and better models, so this list contains the best of the best models released in 2020.

Rating of the best solid fuel boilers of 2021

The best solid fuel boilers price/quality

Protherm Beaver 50 DLO 39 kW

Classic solid fuel boiler, burning wood and coal . Open camera

combustion requires a stationary chimney.

The maximum thermal power is 39 kW, which is enough to heat a room with an area of ​​up to 300 sq.m.

Built-in thermometer and pressure gauge allow you to monitor the condition of the heating system.

The control is mechanical and requires a certain skill from the operator. The device is quite bulky in size and weight and requires a separate boiler room.

The weight and dimensions are due to the high quality of materials, cast iron doors and boiler body.

Specifications:

• Type: classic;
• Circuits: single-circuit;
• Energy independence: yes;
• Combustion chamber: open;
• Efficiency: 90.2%;
• Placement: floor;
• Fuel type: wood, coal.

pros

• power;
• quality of materials;
• 8 sections;
• uniform heating.

Minuses

• the bottom heats up;
• price;
• weight and dimensions.

Stropuva Mini S8 8 kW

A long-burning unit that runs on wood and wood briquettes . Small

the power will allow heating rooms with a total area of ​​up to 80 sq.m.

Does not depend on communications and electricity, a good option for a cottage or country house.

Maintains temperature up to 20 hours . It does not cause any trouble in assembly and installation, and is sold fully assembled.

Economical, fuel consumption is low.

Compact dimensions go together with a bright appearance - an additional aesthetic plus.

But, despite its dimensions, it is very heavy - the device weighs 145 kg, so assistance will be required during transportation and installation.

Specifications:

• Type: long burning;
• Circuits: single-circuit;
• Energy independence: yes;
• Combustion chamber: open;
• Efficiency: 85%;
• Placement: floor;
• Fuel type: firewood, wood briquettes.

pros

• economical fuel consumption;
• long-term heat retention;
• compactness;
• design.

Minuses

• the fuel window is located low;
• weight.

Teplodar Kupper Praktik 14 14 kW

The classic single-circuit model is capable of heating a room with an area of ​​up to 140 sq.m., however, the greatest efficiency is achieved with an area of ​​up to 80 sq.m..

It works not only on wood and coal, but also on peat briquettes, which ensures the efficiency of the model.

Suitable for systems with forced water circulation.

Small dimensions, deep firebox, steel heat exchanger and pre-installed heating element to maintain temperature are the parameters for which the model is popular.

A spacious ash pan will reduce the number of cleanings . In terms of power and price ratio, it is one of the most profitable boilers.

Specifications:

• Type: classic;
• Circuits: single-circuit;
• Energy independence: yes;
• Combustion chamber: open;
• Efficiency: 90%;
• Placement: floor;
• Fuel type: firewood, coal, peat briquettes.

pros

• budget;
• quality and reliability of design;
• deep firebox;
• spacious ash pan;
• small size and weight.

Minuses

• fuel burns out quickly;
• thin body walls.

The best solid fuel boilers

If you want to get a high-quality solid fuel boiler, but do not want to spend large sums on its purchase, this category is just for you. Here are models up to 20,000 rubles. As you might guess, they are not designed for large rooms. Despite this, in this top you will find durable boilers. Most are made of metal, have good efficiency and have useful gadgets. In addition, when selecting, we paid special attention to the quality of the design and coating, based on the characteristics of the device and customer reviews.

"Teplodar Cooper Praktik 14"

The list proudly opens with the boiler model “Teplodar Kupper Praktik 14”. Its heat is enough for rooms from 90 to 140 square meters. Teplodar Kupper produces good heating equipment that pleases with both price and quality.

Teplodar Kupper Praktik 14th in the rating of solid fuel boilers

These boilers are designed for use in residential premises. Its universal design allows this device to be used in both open and closed heating systems. Obvious advantages include compact dimensions, automatic draft regulator, high-quality supply pipe and the presence of a heating element unit. Buyers note stable operation and good build material. The pipe protects well from airing due to the fact that it is located on the upper surface.

Advantages:

• Heating element block.
• Easy to install.
• Automatic regulator.
• Efficiency up to 14 square meters.

Flaws:

• Low efficiency.

NMK "Sibir" KVO 15 TPE

This model attracts not only because it is made of steel, but also because it is efficient and durable. It can successfully heat houses up to 100 square meters, taking into account that the ceilings will not be higher than 2.5 meters. The design also provides for heating element-2, which has a power output of 3 kW.

NMK Sibir KVO 15 TPE in the rating of solid fuel boilers

This is enough even to heat the water. You can connect this boiler from any side of the heating network; it is also possible to connect pipes diagonally. The principle of operation itself is to release energy from fuel combustion to water. Also a separate advantage is the rapid heating of the bottom, walls and lid of the firebox.

Advantages:

• TEN-2.
• Steel parts.
• Ease of use.
• Heating water.

Flaws:

• Problematic installation.

EVAN WARMOS TK-9

This boiler model resembles a “potbelly stove,” which immediately attracts the eye of a sophisticated buyer. However, there is no automation here, which is a big minus. To cover it, the designers added a powerful 9 kW stove. For the most part, this device runs on wood fuel and coal.

EVAN WARMOS TK-9 in the rating of solid fuel boilers

Loading is only frontal, which is not convenient for everyone. The weight of this model is approximately 50 kilograms, and the maximum operating pressure is 2 ATM. Despite the shortcomings, many users speak positively about this model, noting its durability and high-quality components. Such a boiler would fit very well in a cottage or country house.

Advantages:

• Operating pressure.
• Durability.
• Nice stove.
• High quality components.

Flaws:

• There is no automation.
• Front loading.

"Lemax Forward-16"

Lemax has released their Forward-16, which is perfect for those who want to purchase a powerful solid fuel boiler. The device itself has 3 modifications: 13,16 and 20 kW. Such a boiler will perfectly heat houses and cottages, as well as domestic buildings, provided that they all have good air circulation and a water heating system.

"Lemax Forward-16" in the rating of solid fuel boilers

This model uses coke and coal as fuel. You can also use wood. According to the company, burning the material does not pollute the environment much and preserves the environment. Separately, it is worth noting the compact dimensions of the heat exchanger, which is made of expensive materials. There is also high efficiency and heat-resistant coating, which is a pleasant bonus for its price.

Advantages:

• Fuel.
• Preservation of the environment.
• Heat-resistant coating.
• Availability of modifications.

Flaws:

• Not detected.

ZOTA "Dymok-M AOTV-12M"

The new ZOTA model was recognized as the best solid fuel boiler in the budget segment. It has a cast iron plate and has the ability to detach the surfaces, which makes loading coal faster and more convenient. Also, the firebox itself allows you to load large firewood, up to 58 centimeters.

ZOTA "Dymok-M AOTV-12M" in the rating of solid fuel boilers

Air does not enter the boiler thanks to the ash door, which is made of high-quality materials. Thanks to this, the fuel itself produces more heat and burns better. The water jacket itself is reinforced with channels, which is also a plus. A pressure of 3 ATM does not deform the walls of the boiler in any way, which allows the device to function longer without breakdowns. You can also use electricity as an additional power source. A powerful chamber of 30 liters and a thermal power of 12 kW will perfectly heat your home without consuming a lot of resources. This boiler model can operate up to 7 hours at maximum coal load.

Advantages:

• The presence of a gas vent door.
• Reinforced water jacket.
• Comfortable fuel loading.
• Power.

Flaws

• Not found.

The best double-circuit solid fuel boilers

Metal-Fach SMART MAXI 15

In fact, it is considered single-circuit, but can be connected to an indirect water heating boiler and supply hot water for domestic needs.

Main characteristics:

• Fuel: coal, firewood, wood briquettes.
• Heating area: up to 150 m2;
• Firebox volume: 26 l;
• Power: 15 kW;
• Number of circuits: 1, but can be connected to a boiler for DHW;
• Chimney: diameter 160 mm;
• Working pressure: 2.5 bar;
• Weight: 310 kg;
• Production: Poland-Russia.

Advantages:

✅ Logs up to 50 cm long can be placed in the loading hopper;

✅ Minimum technical difficulties with installation, cleaning and maintenance;

✅ The fuel burns almost completely, leaving a minimum of ash;

✅ The declared duration of work on one stack of firewood is up to 9 hours, on coal - up to 12 hours.

Flaws:

❌ Very heavy, difficult to transport and install;

❌ Possible accumulation of resin condensate when heating with wood.

Kiturami KRM-30 R

Model with two circuits for heating air, floors and water with convenient, reliable mode settings. You can set one or more parameters and not worry about the settings being lost at the wrong time. Such a boiler is suitable even for a large house or industrial premises - the power and volume of the firebox plus the long-burning mode allow this.

Main characteristics:

• Fuel: firewood, fuel briquettes, coal or any other biofuel. You can connect a diesel burner.
• Heating area: up to 350 m2;
• Firebox volume: 51 l;
• Power: 35 kW;
• Number of circuits: 2;
• Chimney: diameter 175 mm;
• Working pressure: 2 atm;
• Weight: 170 kg;
• Production: South Korea.

Advantages:

✅ Two combustion chambers: thanks to this, smoke does not enter the heat exchanger;

✅ Electronic operation control simplifies setup;

✅ Safety provided by a system of sensors (overheating, pressure, coolant level, etc.).

Flaws:

❌ The price is above average.

DRAGON TA-GV-25

Russian double-circuit long-burning boiler with pyrolysis effect.
This helps you save a lot. The fuel in the grate burns completely, heat and hot water in the house are retained much longer - up to 10 hours on one load. Suitable for installation in systems with forced or gravity circulation. Main characteristics:

• Fuel: coal, firewood, briquettes.
• Heating area: up to 250 m2;
• Firebox volume: 98 l;
• Power: 25 kW;
• Number of circuits: 2;
• Chimney: diameter 150 mm;
• Working pressure: 2 bar;
• Weight: 249 kg;
• Production: Russia.

Advantages:

✅ Capacious bunker – logs up to 60 cm long can be placed;

✅ You can rehang the doors to install them in any convenient place;

✅ Adjustable feet for installation on uneven surfaces.

Flaws:

❌ Heavy;

❌ There is no built-in electric heater and gas burner.

The best pyrolysis boilers

In this category you will find the best solutions powered by solid fuels. The main advantages of such boilers are complete combustion of the contents, automation and long combustion duration. Also, you don't have to worry about the sinter layer and can use split logs. All models on this list can operate at low power in the event of a complete lack of electricity. We recommend that you familiarize yourself with the representatives of the list if you want to purchase boilers that do not require constant maintenance.

Bourgeois K TA 20

Our list opens with a device with the funny name “Bourgeois K TA 20”. Despite the name, this boiler saves fuel very well, which is why it has gained its popularity. This device saves fuel 3-4 times more efficiently than other competing models, and at the same time the assembly itself is made of high-quality materials.

Bourgeois K TA 20 in the rating of solid fuel boilers

This ensures durability and good price-quality ratio. The cost is 1.5 times less than foreign models of 20 kW. Perfect for people who like to invest their funds practically.

Advantages:

• Durability.
• Economical.
• Efficiency.
• Good thermostat.

Flaws:

• Heavy.

Viessmann Vitoligno 100 VL1A025 30 kW

If you prefer only wood fuel and are looking for a suitable boiler, you should definitely pay attention to this model. Perfect for those who are tired of constantly throwing away coal. Thanks to the spacious loading chamber, you can safely stuff a bunch of large firewood up to 50 centimeters in length into this device.

Viessmann Vitoligno 100 VL1A025 30 kW in the rating of solid fuel boilers

Efficient heating is provided in houses up to 300 square meters. There is also an electronic display, which greatly facilitates the adjustment of the boiler and its temperature. According to customer reviews, there are no particular problems with adjustment, but it is best to use soft firewood.

Advantages:

• 87% efficiency.
• Long burning.
• Economical.
• Efficiency.
• Good thermal insulation.

Flaws:

• Soft firewood is required.

Geyser PK-20

If you have a large area and you want to heat it efficiently, then you may be interested in Geyser PK-20. When purchasing this unit, there is no need to spend personal time servicing the boiler several times a day.

Geyser PK-20 in the rating of solid fuel boilers

Just load the firewood and feel free to enjoy comfortable conditions in your home. The only negative is the dimensions of this boiler. When installing it, it is necessary to prepare the foundation. The cost-effectiveness of the model and ease of cleaning confidently promoted the Geyser PK-20 to third place on our list.

Advantages:

• Economical.
• Durability.
• Easy to use.
• Autonomy.

Flaws:

• Dimensions.

Bourgeois – K Modern 12

This pyrolysis boiler is unpretentious both in the amount of fuel and in its type. You can heat a large room using wood, coal, pellets, peat or briquettes. There is also a high efficiency (92%), which is definitely a plus. This boiler heats up to 120 square meters. The downside is the high consumption of consumables, but this is outweighed by the ease of maintenance. The high-quality assembly mixed with a stylish design also does not let us down.

Advantages:

• High efficiency.
• Energy independence.
• Design.
• Dimensions.

Flaws:

• High consumption of consumables.

SIV-100

The SIV-100 was recognized as the best pyrolysis boiler of 2021. It can efficiently heat 900 square meters, which is ideal for large homes and organizations. Some even heat entire workshops with it. With all this, the efficiency is 92%, which makes it the leader of pyrolysis boilers for 2021.

SIV-100 in the rating of solid fuel boilers

The power is 100 kW, and this is enough to heat residential and commercial premises, both in winter and at other times of the year. This is not just a boiler, but also a heat exchanger, and thanks to its technological combustion, large spaces can be safely heated. Also, an undoubted advantage will be the consumption of any type of fuel by this miracle of technology, even garbage and household rubbish. However, do not forget that the quality of the work itself depends on the quality of the fuel. For example, you can take logs. One bookmark is enough for a stable 10 hours of work. This boiler will be easy to use for both experienced owners and beginners.

Advantages:

• Large firebox.
• "Omnivorousness."
• Automation.
• High efficiency.
• Durability.
• Wide scope of application.

Flaws:

• Not found.

The best pyrolysis solid fuel boilers

The operating principle of such installations is based on the afterburning of pyrolysis gases formed as a result of fuel combustion in an oxygen-depleted environment. This solution ensures greater energy efficiency and a long period of equipment operation on one load.

Attack DP 25 Profi

5

★★★★★

editorial assessment

100%

buyers recommend this product

The 2021 new product from a well-known manufacturer of heating equipment from Slovenia has incorporated all the advanced ideas and technological solutions of the world leaders in this industry. The Attack DP 25 Profi pyrolysis boiler is a highly efficient and economical 25 kW boiler system designed for working with wood and its derivatives. Allows the use of firewood up to 1 m long.

The main feature of the device is the electronic control of combustion and coolant circulation processes with all indicators displayed on the display. Automation independently adjusts the power of the unit to the real heat demand of the house. The duration of work on one tab reaches 12 hours. Cost - 95,000 rubles.

Advantages:

• Highly efficient heat exchanger.
• Impressive efficiency.
• Power modulation.
• Automatic shutdown after fuel burnout.
• Water after-cooling circuit (additional protection against overheating).
• Easy to maintain.

Flaws:

• Impressive weight and size indicators.

An excellent boiler installation for organizing economical heating of residential buildings, workshops, and shops.

Buderus Logano S171-50 W

4.9

★★★★★

editorial assessment

92%

buyers recommend this product

Buderus Logano is a classic wood-burning single-circuit boiler with electronic control. A power of 50 kW is enough to heat a rather large private house with 2-3 floors or an industrial premises. The efficiency of the unit reaches 90% due to the well-thought-out design of afterburning pyrolysis gases and control of combustion intensity.

The main feature of the model is the presence of electronics, which allows you to control the boiler, remotely control the operation of the boiler, integrate it into the “smart home” system, etc.

Advantages:

• Energy efficiency.
• Manufacturability.
• Convenient loading and simple maintenance.
• High security.

Flaws:

• Heavy weight (466 kg).
• The price is almost 220 thousand.

This model will be an excellent (although very expensive) solution when creating an autonomous heating system in a large cottage or enterprise.

Trayan T15 2-KT

4.8

★★★★★

editorial assessment

88%

buyers recommend this product

A modern wood-burning pyrolysis boiler is designed for heating and hot water supply of buildings and structures with an area of ​​up to 150 m2. The unit body is made of heat-resistant steel 5 mm thick. With a power of 15 kW, the burning duration on one tab is 8 hours.

The model is equipped with an automatic air supply regulator, which allows you to change the power in the range from 40 to 100%, where the highest efficiency of 82-85% is achieved.

Advantages:

• Two heating circuits.
• Possibility of installing heating elements.
• Long battery life.
• Reliability and safety.
• Affordable price – just over 58 thousand.

Flaws:

• Can only be installed in a system with natural coolant circulation.
• Not the highest efficiency.

Trayan is suitable for organizing heating and hot water supply in private homes, industrial and office premises, and shops.

The best pellet solid fuel boilers

This type of boiler is environmentally friendly and highly environmentally friendly. This is due to the fact that they work on waste from various elements of the agricultural industry. Consumables are cheaper than full-fledged fuel, so maintaining such a boiler will be much cheaper. When purchasing pellet solid fuel boilers, you must take into account the fact that some models can only operate on one type of fuel. This list contains not only the best premium class models, but also decent models in the mid-price segment.

Stropuva S20

If you have a small house outside the city, this model is definitely worth your attention. The company is good in everything except price. Perfect for the best cottages up to 100 square meters. This model stands out for its performance. For example, with just one load of briquettes you can forget about changing fuel for three whole days. According to the developers, the efficiency is 91%, which is quite good for the dimensions of this model.

Advantages:

• Good performance.
• High efficiency.
• Easy care.
• Design.
• Dimensions.

Flaws:

• High price.

ZOTA Pellet 25

Despite its high cost at first glance, the consumables for this pellet solid fuel boiler are the most affordable. This model is so economical that it requires almost no material. One load of fuel with a power of 25 kW is enough for a day. And all this heats up to 250 square meters, which is quite good.

ZOTA Pellet 25 in the rating of solid fuel boilers

This model is one of the best among pellet boilers, so you definitely shouldn’t pass it by.

Advantages:

• High savings.
• Autonomy.
• Good thermal insulation.
• Functional.

Flaws:

• High price.

ZOTA Stakhanov 15

The legendary Stakhanov was mentioned in this model for a reason. This pellet boiler is durable and extremely efficient. At an affordable price, you get a powerful device that can be connected to a single-phase network.

ZOTA Stakhanov 15th in the ranking of solid fuel boilers

The system consumes the material specified by the manufacturer, and also has an autonomous ash removal system. However, the dimensions may be a disappointment to some as the floor will need to be prepared in advance for installation.

Advantages:

• High efficiency.
• Powerful.
• Effective.
• Easy to use.

Flaws:

• Heavy weight.

Buderus Logano G221-20

If you want to find the best solid fuel pellet boiler in terms of efficiency, this model is definitely for you. The device easily heats up to 200 square meters, heats up quickly and has one of the best thermal insulation on the market. Truly German quality, assembly and reliability are at their best as always. Many buyers claim that the purchase of this device pays off very well, since you get a not particularly fancy boiler with the best efficiency available today.

Advantages:

• Spacious firebox.
• You can put logs up to 70 cm.
• Energy efficiency.
• Design.
• German quality.

Flaws:

• Not found.

Teplodar Kupper OK 30

The best in terms of characteristics and customer opinion is Teplodar Cooper OK 30. This cast iron boiler is good for both price and performance. You can heat up to 300 square kilometers without spending a large number of consumables. When installed correctly, the heating temperature can reach 80 degrees, which is a definite plus. This equipment also runs on gas and electricity, which makes it universal.

Advantages

• High efficiency.
• Compactness.
• Democratic price.
• Various fuels.

Flaws:

• The need for high-quality installation.

The best solid fuel direct combustion boilers

The classic design of a solid fuel boiler system does not provide for afterburning of pyrolysis gases. The efficiency of such installations varies from 70 to 80%, which, of course, is not a standard of efficiency, although it is quite acceptable. Such models can use firewood, coal, coke, and wood waste products as fuel.

Zota "Topol 32 VK"

5

★★★★★

editorial assessment

100%

buyers recommend this product

New for 2021 is a single-circuit heating boiler with a thermally insulated body and a power of 32 kW, designed to operate in systems with pressure up to 3 kg/cm2. The main features of the model are an improved heat exchanger configuration with an increased exchange area and water-filled grates.

The possibility of vertical and frontal loading of fuel makes the operation of the installation as convenient as possible. Burning time 10-16 hours. Efficiency 75%. Such a unit costs about 42 thousand.

Advantages:

• Omnivorous - can work on wood, briquettes, coal.
• Significant reduction in heat loss due to proper insulation of the water jacket.
• Adjustable position of the blower damper with mechanical draft regulator.
• Availability of cleaning hatches for servicing the heat exchanger and chimney.
• Deep firebox.
• Possibility of installing additional devices (heating element, automation, pellet or gas burner).

Flaws:

• Energy dependence.

Zota “Topol 32 VK” is a very compact and yet universal model that is ideal for heating a private home.

Lemax Forward 16

5

★★★★★

editorial assessment

95%

buyers recommend this product

A single-circuit non-volatile boiler with a power of 16 kW is designed to operate on coal and wood. The model is equipped with a fairly compact heat-insulated steel exchanger with a heat-resistant coating, which significantly increases its corrosion resistance.

The main feature of the installation is ease of use. The vertical loading method makes it possible to fill the combustion chamber as simply and evenly as possible. Optionally, the boiler unit can be equipped with a non-volatile regulator for the air supply to the combustion chamber and a gas burner device. Cost - 18,500 rubles.

Advantages:

• High efficiency (75-80% depending on the type of fuel).
• Energy independence.
• Mechanical control.
• Good level of security.
• Convenient vertical loading.

Flaws:

• Small combustion chamber volume.

Lemax, as always, offered an affordable and well-thought-out model of very high quality assembly and with wide options for retrofitting.

Teplodar Cooper Carbo 26

4.9

★★★★★

editorial assessment

92%

buyers recommend this product

See review▶

Cooper Carbo is a new product in the line of solid fuel boiler units designed to operate on coal and coal briquettes. The power of the model is sufficient to heat rooms with a total area of ​​up to 200 m2.

On one charge, the boiler can operate for up to 16 hours. Its main advantage is versatility. The unit “consumes” coal, firewood, pellets, gas - subject to the purchase and installation of the appropriate burner. Cost - 54,500 rubles.

Advantages:

• Removal of pyrolysis gases from the loading hatch.
• Shaft design with maximum energy transfer to the walls of the heat exchanger and jacket.
• System of movable grate bars.
• Secondary and tertiary air supply for afterburning pyrolysis gases.
• 9 kW heating element unit to maintain temperature after fuel burns out.

Flaws:

• The kit does not include elements of the smoke exhaust system.

Teplodar is an excellent boiler unit for heating a small cottage, technical and industrial premises.

Siberia Hephaestus 30 kW

4.8

★★★★★

editorial assessment

88%

buyers recommend this product

See review▶

A simple and convenient energy-independent heating boiler with a power of 30 kW - the maximum in its range. The main feature of the model is stable operation in networks with low pressure (up to 2 bar). This is what allows the boiler to be installed in closed systems with natural or forced coolant circulation.

The combustion intensity is controlled by a non-volatile regulator of air supply to the combustion chamber. To facilitate loading fuel into the combustion chamber, there is a hatch installed in the upper part of the unit. The price of the device is 34,000 rubles.

Advantages:

• Compactness.
• Energy efficiency.
• High efficiency 80%.
• Possibility of connecting a block of heating elements.
• Water-filled grates to accelerate heating of the coolant.
• Work on coal, wood, pressed briquettes.

Flaws:

• It is not possible to install a gas burner device.

A very good boiler unit for heating a private house and outbuildings. However, it should be understood that it uses an open-type combustion chamber, which requires proper organization of supply ventilation in the boiler room.

Sime Solida EV5

4.7

★★★★★

editorial assessment

87%

buyers recommend this product

Sime Solida is a powerful and fairly simple single-circuit heat generator that does not require an electrical connection to operate. Its design feature is water-filled grate bars. They prevent premature burning of the metal and significantly reduce the heating time of the coolant.

Another undeniable advantage of the EV5 model is its readiness to work out of the box. For commissioning, you do not need to additionally purchase automation, burner and other accessories, as is practiced by other manufacturers. However, the cost of the complete set is quite high (97 thousand rubles).

Advantages:

• High power (40-45 kW).
• Easy to use.
• Convenient fuel loading.
• High reliability and durability.

Flaws:

• Heavy weight (350 kg).

A powerful and reliable heating boiler that is ideal for heating a country house. One difficulty: the unit will have to be installed on a separate foundation. But there is another option - to carry out a series of serious measures to strengthen the floor.

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The best long-burning boilers

This list is dedicated to the best long-burning boilers. They are more expensive than previous segments, but also provide more comfortable conditions. When compiling the top, we took into account the presence of a heating element, efficiency level and build quality. All presented models can be installed both in domestic and industrial premises. It is strongly recommended that you familiarize yourself with the technical characteristics of these models.

Viadrus Hercules U22D-4

Today it is quite difficult to find a high-quality solid fuel boiler with long burning. However, the top of these confidently opens with Viadrus Hercules U22D-4. It immediately catches your eye with its modern design, but this is not its main advantage.

Viadrus Hercules U22D-4 in the rating of solid fuel boilers

It runs on wood and can easily heat up to 200 square meters. It works almost silently and does not require a large number of consumables, but the main disadvantage is “pickyness”. This model only works on wood and nothing else. The weight is about 100 kg, which can also cause inconvenience. In general, the characteristics are pleasing, and users mostly respond positively to this model.

Advantages:

• Quiet operation.
• Economical.
• Energy independence.
• High quality components.
• Easy to use.

Flaws

• Only wood can be used as fuel.
• Weight.

Protherm Beaver 50 DLO

One of the best boilers in terms of price-quality ratio. The excellent performance of this cast iron device has been noted by the majority of satisfied users. Inorganic wool provides excellent insulation, so you don't have to worry about the temperature dropping at the wrong time.

Protherm Beaver 50 DLO in the rating of solid fuel boilers

With a single filling of the fuel tank, you don’t have to worry about replacement for the whole day. Allows you to easily heat 350 square meters.

Advantages:

• Power.
• Availability of air regulator.
• Ease of use.
• Easy installation.

Flaws:

• Lower productivity with wood than with coal.

Dakon DOR F 16

Like the model described above, this boiler fully justifies the investment in it. Although this device is only suitable for small houses, it is capable of calmly “eating” damp coal, which the competitor described above cannot boast of.

Dakon DOR F 16 in the rating of solid fuel boilers

The installation also does not cause any difficulties and has a high level of efficiency.

Advantages:

• Unpretentious.
• Almost silent.
• Price.

Flaws:

• He prefers coal.

Danko 20 TN

As funny as it may sound, this boiler has low efficiency, but is powerful in itself. The whole secret lies in technology. The controls are friendly and you can figure it out intuitively.

Danko 20 TN in the rating of solid fuel boilers

Just load the coal and you can calmly go about your business for 8 hours. If the size of the heated room does not exceed 180 square meters, then the loaded fuel will last for 12 hours. Easy to clean and runs quietly even on anthracite.

Advantages:

• Saving.
• Design.
• Consumes any fuel.
• Easy to use.

Flaws

• Difficult to find.

Stropuva S 40

The best in its segment. You can get up to 70 hours of heat by loading 50 kg of wood into this boiler. Not economical, but you can forget about any worries for a long time.

Stropuva S 40 in the rating of solid fuel boilers

An excellent option for a summer house or country house. It also has an extremely high efficiency, namely 95%. Capable of heating up to 400 square meters, and coal, coke or wood are suitable as fuel. Based on enthusiastic user reviews, it was concluded that the purchase of this equipment will fully pay for itself in the near future.

Advantages:

• Best efficiency.
• 70 hours of battery life.
• Reliable.
• Works without interruption.
• High quality components.

Flaws:

• High price.

The best classic solid fuel boilers

ZOTA Dymok-M AOTV-18M 18 kW

A budget option equipped with a removable hob, making it ideal for a private home or country house.

Removable surfaces allow you to quickly load fuel, the deep firebox can accommodate massive logs up to 58 cm in length.

The design of the ash pan door prevents air from entering.

The combustion process is easily controlled . Thermal power at full load is enough for 7 hours with a total room area of ​​up to 120 sq.m.

Maintains a pressure of 3 atm and a coolant temperature of up to 95 degrees . Firewood consumption is slightly less than 8 kg/hour, brown coal – 6 kg/hour.

Specifications:

• Circuits: single-circuit;
• Energy independence: yes;
• Combustion chamber: open;
• Efficiency: 70%;
• Placement: floor;
• Fuel type: wood, coal.

pros

• tight door;
• fast loading;
• hob;
• power.

Minuses

• Efficiency

ZOTA Yenisei 18 18 kW

An easy-to-install and maintain single-circuit boiler can heat rooms with a total area of ​​up to 150 sq.m..

It consumes not only firewood and coal, but also fuel briquettes.

Seals on the doors and the air injection system allow you to regulate the combustion intensity and temperature accordingly.

The combustion chamber accommodates briquettes and logs up to 60 cm long.

The design feature is the combustion door placed at an angle.

In total, the boiler provides up to 8 hours of operation when the firebox is fully loaded.

However, it does not have the highest efficiency indicators and average efficiency indicators.

Specifications:

• Circuits: single-circuit;
• Energy independence: yes;
• Combustion chamber: open;
• Efficiency: 70%;
• Placement: floor;
• Fuel type: firewood, coal, coal and wood briquettes.

pros

• tight door;
• deep firebox;
• hob;
• low cost.

Minuses

• Efficiency

Teplodar Cooper Praktik 8

A classic single-circuit unit that runs on classic coal and wood, as well as peat briquettes.

Equipped with a thermometer that allows you to control the temperature.

The device’s power is enough for small areas of up to 80 sq.m. Optimal for small private houses and country houses.

It is distinguished by a large chimney 11.5 cm in diameter . The model is made of high-quality materials and meets modern quality standards.

The steel body allows you to retain heat for a long time.

The package does not include a thermostat; if necessary, it can be purchased separately.

Specifications:

• Circuits: single-circuit;
• Energy independence: yes;
• Combustion chamber: open;
• Efficiency: 85%;
• Placement: floor;
• Fuel type: firewood, coal, peat briquettes.

pros

• price;
• uniform heat distribution;
• compactness and weight.

Minuses

• there is not enough power for two-story buildings;
• The case heats up.

Good solid fuel boilers for a summer residence

In the final selection, we have collected the best models in premium and budget options for cottages and country houses. All models were selected based on efficiency level, price-quality ratio and customer reviews.

ZOTA Master 18

This boiler model is perfect for a dacha. This device perfectly heats small houses and does not require special knowledge in care. The main feature is not only heating the house, but also the ability to cook food.

ZOTA Master 18 in the rating of solid fuel boilers

This combi boiler runs on brown coal. Logs can grow up to 70 centimeters in length. You can remove the cooking zone.

Advantages:

• Dimensions.
• Heat exchanger.
• Easy to care for.
• Possibility of cooking.
• Semi-automatic mode.

Flaws:

• Average equipment.

Siberia KVO 10 TPE

Despite the cooling name, this boiler provides warmth throughout the house. It is efficient and does not require much fuel. Small dimensions and a 12 mm steel plate make this boiler very convenient in small country houses.

Siberia KVO 10 TPE in the rating of solid fuel boilers

There is also a cooling system; this boiler is powered by coal and wood.

Advantages:

• Size.
• Price.
• Reliability.
• Quality.

Flaws:

• Average power.

Buderus Logano G221-40

This cast iron solid fuel boiler is powerful and durable. It can easily heat up to 400 square meters, and can be used either autonomously or with a gas boiler. An excellent choice if you have a massive dacha and want to be warm in every corner of it. It feeds on coal, wood or coke.

Advantages:

• Power.
• Design.
• Energy independence.

Flaws:

• Not the highest efficiency.

Dakon DOR F27

The new shape of the combustion chamber immediately attracts attention. High efficiency and balance in fuel consumption make this model one of the best in its segment. Top loading of fuel greatly simplifies operation, and the price pleases a large number of buyers. Many speak well of the smooth operation and durability of the equipment.

Advantages:

• Design.
• Energy independence.
• Easy to maintain.
• Price.

Flaws:

• Separate purchase of heat exchanger.

Candle S-18 kW

Thanks to the new operating technology, this model tops our list. The whole trick is that only the top layer of wood or briquette burns. Therefore, one bookmark is enough for 7 hours of operation, which makes this boiler very economical. 32 hours of continuous operation can be achieved, and the dimensions allow it to be installed without any floor preparation. Also attractive is the modern design.

Advantages:

• High efficiency.
• Not bad power.
• High economy.
• Compactness.
• Energy independence.

Flaws:

• Not detected.

The best solid fuel boilers with a water circuit

Kentatsu ELEGANT-03 17 kW

Classic single-circuit unit with cast iron heat exchanger . Enlarged

The surface of the heat exchanger is provided by additional fins, which increases the efficiency of the boiler.

The maximum coolant temperature is 90 degrees at a pressure of 4 bar.

The power of the equipment is sufficient to heat a room up to 170 sq.m.

The design of the device ensures uniform heating of all rooms.

The long-life boiler grates are water-cooled. An additional advantage is the support for a mechanical thermostat and a thermometer on the front panel of the boiler.

Specifications:

• Type: classic;
• Circuits: single-circuit;
• Energy independence: yes;
• Combustion chamber: open;
• Efficiency: 90%;
• Placement: floor;
• Fuel type: wood, coal;
• Circulation pump/expansion tank: no/no.

pros

• high-quality grate bars;
• productivity;
• thermometer and thermostat.

Minuses

• price;
• weight.

Lemax Forward-16 17 kW

Economical single-circuit unit running on coal, wood and coke . Optimal for

private houses with an area of ​​up to 170 sq.m.

Maintains system pressure up to 2 bar. Top loading allows the use of large firewood and flammable debris.

Long warranty period is an additional bonus.

It is distinguished by its reliable design and materials, high-quality assembly.

A compact heat exchanger, heat-resistant coating, coolant temperature up to 95 degrees are among the additional advantages of the model.

The disadvantages are the relatively low efficiency and the need to frequently add fuel.

Specifications:

• Type: classic;
• Circuits: single-circuit;
• Energy independence: yes;
• Combustion chamber: open;
• Efficiency: 75%;
• Placement: floor;
• Fuel type: wood, coal, coke;
• Circulation pump/expansion tank: no/no.

pros

• reliability and quality;
• top loading;
• low cost;
• power.

Minuses

• efficiency;
• It is necessary to frequently load fuel portions.

ZOTA Topol M 14 14 kW

Compact model, designed for a private house with an area of ​​up to 80 sq.m. Distinctive

a design feature is the elevation of the entire structure, which makes cleaning the ash pan easier.

The built-in temperature sensor allows for greater control and more efficient fuel consumption.

Powered by coal and wood . The control is mechanical and requires regular monitoring by the operator.

Easy to install and operate, has small dimensions.

Due to the characteristics of the walls, it requires space for placement despite its size . In terms of price-quality ratio, it is one of the leading in many ratings.

Specifications:

• Type: classic;
• Circuits: single-circuit;
• Energy independence: yes;
• Combustion chamber: open;
• Efficiency: 75%;
• Placement: floor;
• Fuel type: wood, coal;
• Circulation pump/expansion tank: no/no.

pros

• dimensions;
• power;
• value for money;
• holds heat well.

Minuses

• efficiency;
• The walls of the housing heat up.

The best pyrolysis boiler for a private home

Such a purchase will be optimal in terms of efficiency and consumption only if it is possible to buy dried wood or dry the firewood yourself.

Buderus Logano S171-22 W

Made of sheet steel 0.5 cm thick. Fuel material - firewood. The electronic display and control panel facilitates the process of use. Connects to a single-phase power supply. Water circuit pressure within 3 bar.

Buderus Logano S171-22 W

Specifications:

Price 160,000 rub.

Operating instructions Buderus Logano S171-22 W

Zota Carbon 50

A good option for those who like to burn with coal and its derivatives. A solid fuel boiler provides economical consumption of funds, and in return it releases thermal energy a hundredfold. Zota produces Carbon heating units with power from 15 kW to 60 kW. The three-circuit heat exchanger also releases energy from gases coming from the smoke itself. The chamber is lined with fireclay, which also affects the efficiency of the device.

Zota Carbon 50

Specifications:

Price 76,500 rub.

Advantages of the technique:

• pressure and temperature indicators can be monitored using a thermobarometer;
• afterburning of exhaust gases.

Instructions for use Zota Carbon 50

Logano S121-2-21

The single-circuit pyrolysis boiler Buderus is made of thick sheets of steel, and the inside is lined with fireclay. Such equipment is suitable for structures of any type. The fan can be controlled via the interface. The model range is presented in four powers of 18-38 kW. Heats 168 sq.m. A good pyrolysis boiler for a private home.

Logano S121-2-21

Specifications:

Cost 150,000 rub.

Pros:

• easy to clean the combustion chamber;
• ease of installation;
• control display.

The downside is the high cost.

Operating instructions for Logano S121-2-21

Stropuva S40P

Ideal for home or industrial buildings. The devices are known for their wide range of models; for any size there is a security device in size. This model is capable of heating from 200 to 400 sq.m. A unique secondary gas afterburning system is a striking feature of economical Stropuva pyrolysis boilers. You can put firewood up to 55 cm long into the heating compartment. From one such stack, Stropuva releases energy for 31 hours, and when fired with pellets – for three whole days. The manufacturer's official website contains detailed information about the types of acceptable materials for the firebox, capacity, and moisture level of the logs.

Stropuva S40P

Specifications:

Price 106,000 rub.

Pros:

• can be heated with coal, one load lasts for 5 days;
• economical consumption;
• easy installation.

Operating instructions for Stropuva S40P

Ten best models of solid fuel boilers in 2021

10+. Solid fuel boiler Nedelka “KO-90”

Heats rooms of 150 - 400 sq.m.
An ideal option for a private home, cottage, car service center, as well as a car wash. On one load of 300 liters it can work for up to 7 days. Operating power: 15−45 kW (adjustable using automation). Peak power: 90 kW

You can buy Nedelka boilers here.

Advantages:

• Mass production;
• Made of Russian steel 5 mm grade 09G2S produced by MMK;
• The hatch for cleaning the heat exchanger can be located either on the left or on the right;
• All stages of production are controlled;
• Insured liability to the consumer in ROSGOSSTRAKH in the amount of 10 million rubles;
• Patented production technology;
• Availability of documentation confirming fire safety and reliability of use.

Flaws:

• Weight and dimensions, but this makes the boiler reliable, with good one-time loading;
• The presence of condensation may seem like a minus, but it is an indicator of the high efficiency of the boiler, and there are effective ways to reduce it;
• Energy dependence. Undoubtedly a minus, but easily corrected, when solving it the house always becomes warm, regardless of whether there is electricity or not.

Boilers Nedelka - company presentation

ZOTA Pellet 100A

This is a pellet-type boiler, which is characterized by a high level of automation of the process, when the device is capable of operating for several days without additional refueling with flammable materials. The design includes a screw fuel supply and an inflatable fan; it is perfect for the harsh Russian climatic conditions. The maximum power of the equipment is 100 kW, the volume of the fuel bunker is 606 liters. Due to the screw feed, absolute protection against overheating is ensured, and it also prevents flame from penetrating into the fuel storage bunker.

The built-in thermostat sends the device into standby mode when the required temperature is reached. The boiler is connected to the electrical network, from which all automation functions; it has automatic ignition. The main parameters are adjusted using the buttons located on the device body. Automation allows you to keep daily fuel consumption under full control, making the boiler’s operation more efficient and economical. Additionally, you can install a GSM module that allows you to remotely regulate the temperature in the system. The unit is able to heat a building up to 800 square meters.

Advantages:

• Screw fuel supply;
• Availability of an electronic control system for all elements;
• High power;
• High efficiency - about 90%.

Flaws:

• The need to connect to the electrical network;
• Considerable weight of the device.

Pellet boiler Zota ZOTA Pellet 100A

ACV TKAN 100

A fully automated device that uses coal, wood chips, firewood, etc. as fuel. It is characterized by a high efficiency - about 93%, fuel consumption is low - from 8 kg per hour when the boiler is set to maximum performance parameters. The boiler is absolutely safe during operation thanks to its fully sealed combustion chamber and forced air supply. The fuel supply mechanism is equipped with a fire damper.

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The convective part is equipped with a pneumatic cleaning system; for the convenience of using solid fuel, there are special grates. The maximum heated area is 300 square meters. m. The highest pressure in the heating system is 3 bar. The device is equipped with automatic equipment, powered by electricity, so the boiler needs to be connected to the network, the burner ignites independently. Basic settings are set using a special remote control located on the unit body.

Advantages:

• Not the largest mass of the product;
• High rated power and efficiency;
• Availability of electronic automation, ensuring safe operation and compliance with all set modes;
• Fuel is supplied using a screw mechanism.

Flaws:

• High price.

Long burning boiler ACV TKAN 100

ZOTA Topol M 20

The boiler is highly reliable and has a very attractive design solution. The fuel loading is vertical, an automatic draft regulator is provided, there is a gas burner connected directly to a household gas pipeline or to a cylinder, and there is a reliable heating element.

The maximum heated area is 150 square meters with a ceiling height of 3 meters. In the heating system, the highest pressure is 3 atmospheres, its volume is designed for 54 liters. The housing has good thermal insulation. Under the decorative casing there is a water jacket that prevents the boiler from overheating; it is additionally covered with basalt cardboard, due to which heat loss is minimal. The combustion door is equipped with a lock; one load of fuel burns out within about 12 hours. The boiler must be connected to a natural chimney, since its design does not include a fan.

Advantages:

• The burner is economical, due to which fuel consumption is reduced and thermal power is increased;
• Autonomous control;
• Possibility to use several types of solid fuel;
• Significant efficiency indicators - over 90%;
• Reliable assembly;

Flaws:

• Heavy weight.

ZOTA Topol M 20

Teplodar Cooper Praktik 8

The device is intended for placement in residential buildings and other premises, the area of ​​which should be in the range from 40 to 80 square meters. m. The product is universal; accordingly, it can be used in both closed and open heating systems. The method of coolant circulation does not play a special role - the device works stably with both artificial and natural methods. The boiler can be used as an independent source of thermal energy, but it is often installed as an addition to existing systems running on gas, electricity or liquid fuel. The boiler comes with a poker, a thermometer, a rotary valve and a screw. The device is characterized by small overall dimensions - it occupies a minimum amount of space in the room.

If necessary, the design can be improved with the help of an automatic draft regulator. This device allows you to control the combustion intensity, which significantly saves fuel. The product is suitable for any heating systems made even from small-volume polymer pipes, but in this case they must be connected through a special capacitive-type hydraulic separator. The convector casing here is of a perforated type, due to which the room where the boiler is located is additionally heated. The supply pipe is located on the upper surface of the structure; it is able to provide universal connection and protect the system from air entering it. The firebox is inclined, the fuel is evenly distributed in it. The damper-damper is made of cast iron; it can be used to protect the room from spilling smoldering slag and coals.

Advantages:

• Universal products that can operate on any solid fuel;
• Absolutely safe and well thought out design;
• High efficiency and efficiency.

Flaws:

• Requires placement in a separate room;
• The installation is quite complicated - it’s problematic to do it yourself.

Teplodar Cooper Praktik 8

ZOTA Yenisei 12

It has a very deep firebox, so it will be possible to load firewood up to 60 cm long into it. The firebox door is made at a certain angle, so it will be much more convenient to fill the combustion chamber with bulk fuel. The loading and ash doors fit quite tightly to the main body of the boiler, do not let combustion products into the room, and air will not enter the combustion chamber through them. This, in turn, will have a positive effect on cravings. You can control the combustion process with a special air supply damper. There is a thermometer on the side wall of the device that shows the temperature of the water leaving the boiler. If necessary, you can install a mechanical draft regulator, but you will have to purchase it separately - it is not supplied with the boiler.

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Electricity can be used as an auxiliary heat source. For this purpose, the boiler is equipped with special stainless steel heaters. The water jacket is located along the entire contour of the boiler, including under the ash pan. Due to this feature of the device, the amount of heat transferred to the coolant increases, and deformation of the ash drawer also does not occur. Advantages:

• Decent efficiency indicator;
• Can work with any solid fuel;
• It is possible to install additional parts;
• High quality workmanship;
• The doors fit tightly to the body.

Flaws:

• Servicing the device is somewhat problematic.

ZOTA Yenisei 12

EVAN WARMOS TT-18

This boiler can be used not only for residential, but also for industrial or agricultural premises. It can be used either as primary or additional heating equipment. The main rule is that it must be located in a room equipped with a natural ventilation system. For higher efficiency, the device is equipped with a flue gas combustion system.

The design has a heating element and a reliable draft adjustment system. The main function of the heating element is to maintain the water temperature to prevent the heating system from defrosting. The unit operates on the basis of natural circulation of water due to temperature differences, however, the pipes will need to be positioned in such a way that the coolant can pass through the system independently. If it cannot be ensured, then you will have to additionally install a circulation pump and an expansion tank that has direct contact with atmospheric air. The maximum pressure at which this boiler can operate is 5 bar. The unit is designed for an area of ​​up to 120 square meters.

Advantages:

• Easy to install;
• Reliable build quality;
• Possibility of using any solid fuel.

Flaws:

• The position of the damper must be adjusted manually to prevent excessive fuel consumption;
• Rapid fuel burnout.

EVAN WARMOS TT-18

Lemax Forward-16

It is a fairly simple device with nothing superfluous. The design is very reliable, does not require maintenance, and has a reasonable price. The body is made of decorative metal panels. Behind it lies a layer of thermal insulation, under which there is a housing made of low-carbon steel 4 mm thick. The fuel chamber is large and is protected from overheating by a water jacket.

To increase the strength of the equipment, the heat exchanger is reinforced with a channel, making the likelihood of rupture low. At the bottom of the device there is a heat-resistant grate; under it there is a box for slag and ash. It can be removed through the door on the front panel; it also acts as a damper that regulates the amount of air entering the combustion chamber from the room. The pipes through which the supply and return lines of the heating system are connected are located on the rear panel. There is also a chimney pipe with a damper that regulates draft. The boiler can operate on wood or brown coal; for convenience, there is a top fuel loading system.

Advantages:

• Possibility of using any type of solid fuel - coal, coke, firewood, and so on;
• Small overall dimensions, no need for constant maintenance;
• Convenient top or end loading;
• Low cost.

Flaws:

• Low efficiency;
• The need to regularly load fuel, as it burns out quite quickly.

Solid fuel boiler Lemax Forward-16

Kentatsu ELEGANT-03

The device is a very durable and reliable product, which is intended for heating rooms for various purposes. The control here is simple mechanical; there is no need to connect it to the electrical network. The device is capable of operating on coal and wood; it has a fairly durable heat exchanger made of cast iron and can withstand severe physical stress, including high pressure of the coolant itself. The grates here are cooled, and the overall productivity is high. The device is manufactured on the basis of a multi-section heat exchanger, which is produced using the new AminGas technology. It is resistant to corrosion processes and has good resistance to temperature loads. The fuel is burned completely due to the supply of secondary air. The boiler is single-circuit, but it can also be adapted to supply hot water - for this you will need to purchase indirect heating boilers. They are connected to the heating circuit, take part of the heat from there and direct this energy to spiral heat exchangers.

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The combustion chamber is spacious, the loading door is also quite large, so adding fuel is easy. The temperature of the heating circuit can be adjusted using mechanical draft control. The highest temperature of the coolant can be 90 degrees, the pressure should not exceed 4 bar. The boiler can be used in closed systems equipped with forced circulation.

Advantages:

• Quite reasonable cost;
• High performance;
• Acceptable dimensions;
• Universal device;
• Good manufacturing and assembly quality of the device;
• Long service life;
• There is no need to connect the product to power supply.

Flaws:

• The ash tray is not very conveniently located - getting it out is problematic.

Kentatsu ELEGANT-03

2. Teplodar Cooper OK 15

In the top solid fuel boilers, this unit is in an honorable third place, largely due to the long burning of the fuel. So, on one stack of firewood, the equipment can work for about 30 hours, briquettes burn out in two days, coal about 5 days. Perfect for residential, warehouse and even industrial premises, the area of ​​which does not exceed 150 square meters.

Both water and antifreeze can be used as a coolant; any solid fuel - briquettes, firewood, coal - can be used as fuel. When installing additional elements, the boiler will operate on electricity or gas. The heat exchanger is made of 12 tubes, which ensures high efficiency of the device. The door is sealed, due to which smoke will not pass into the room, and the fuel will burn much longer due to poor access of oxygen to the firebox - it is made on the basis of the state standard GOST 9817-95.

Advantages:

• High build quality of the device;
• Economical operation with significant efficiency;
• Excellent value for money.

Flaws:

• Significant mass, which makes it difficult to move the boiler from one place to another.

Cooper boiler. Reviews.

Teplodar Kupper OK 15

Stropuva Mini S8

The leader of our review of the best solid fuel boilers is capable of high-quality heating of a room whose area reaches 80 square meters. m. Coal, firewood, wood briquettes, and so on can be used as fuel. The burning time for one load of fuel is significant: ordinary firewood burns out in about 30 hours, briquettes in 48 hours. These are the maximum parameters that can be affected by the heat loss of the building, external air temperature, and fuel quality. The overall dimensions are not too large, the boiler takes up a minimum of free space. The design is not too complicated - the device consists of two cylinders placed one inside the other and made of steel. There is a layer of external thermal insulation, so you won’t be able to get burned on the walls of the boiler. The coolant passes through the space between these cylinders. Inside the smaller of them there is a combustion chamber, which is served through doors on the body of the device.

The combustion process itself occurs only in the upper layer of fuel. Heated air from a special chamber is directed here through a telescopic tube. When the top layer of fuel burns, the tube moves to the bottom layer and so on. This design solution allows you to increase the efficiency of the device, as well as adjust the temperature of the coolant depending on the needs of the user. Before entering the chimney, combustion products first flow around the air heating chamber, transferring their heat to it.

Advantages:

• Absolute energy independence of the product;
• Reliable and safe design;
• Can heat a large area;
• Uses fuel economically.

Flaws:

• Except for the rather high cost not found.

solid fuel boiler Stropuva Mini S8