Wood-fired boilers for heating private houses. Solid fuel boilers Solid fuel boiler for heating

Solid fuel boilers are an alternative way to heat private houses. Electric models consume a lot of electricity, so the effectiveness of their use (especially over large areas) is very doubtful. Gas boilers are more justified in this regard, however, they require an appropriate type of fuel to be supplied to the house, which is not always possible. It is in such cases that it is very difficult to overestimate the benefits of stoves, the combustible material for which is firewood, coal and other solid elements.

The current realities of the market are such that hundreds, if not thousands, of models of heating boilers for every taste are presented to the potential consumer: long-burning and pellet, classic and pyrolysis. It is quite natural that it is very, very difficult to make a good choice in such a situation. To simplify things a little, we have prepared for you a rating of the 18 best solid fuel heating boilers in six different categories.

The best solid fuel boilers for long burning

The advantage of long-term heating boilers over others is clear from the name: the duration of burning solid fuel in them when the furnace is fully loaded is two to three days, and in other cases (depending on the type of fuel) it reaches five or even twelve days. At the same time, a volume of thermal energy is released on a constant basis, sufficient to heat the entire provided area. They are economical, but have low efficiency and cause a lot of trouble in maintenance.

3 NMK Magnum KDG 20 TE

Profitable price
Country Russia
Average price: 48,000 rubles.
Rating (2019): 4.8

A typical representative of long-burning boilers from a Russian manufacturer, which was created specifically for the climatic conditions of our vast country. Unlike many other contenders (according to manufacturers' recommendations), it only accepts coal for heating, which burns out within five days with an efficiency of around 75-80 percent. This is not much, but when heating with other fuels, such as wood, the situation looks much more sad. Users' feelings from the operation of this boiler are generally positive: the design is serviceable, unpretentious in maintenance, and in terms of power in general - the "golden mean". Very pleased, albeit primitive, but the existing fuel combustion control system.

Advantages:

• goods of domestic production, which explains the favorable cost;
• good workmanship;
• the presence of a heating control system (the connection between the control links is carried out by a chain).

Flaws:

• the need to observe a strictly defined position of the air damper (with a gap of five millimeters) for the correct operation of the boiler.

2 Stropuva Mini S8

The optimum ratio of price and quality. User Choice
Country: Lithuania
Average price: 56,500 rubles.
Rating (2019): 4.8

Lithuanian heating boiler, highly rated by users. In fact, the manufacturing company Stropuva continues and naturally reaps the benefits of a system built during the Soviet Union. The Mini S8 boiler is compact, made in the form of a “barrel”, however, it is very difficult to move, and therefore there are some installation problems. Its efficiency is connected, first of all, with the type - the long burning of one bookmark of coal is capable of producing heat for two to five days. There are no complaints about the quality either - everything is done reliably, neatly (which is not so important in boilers) and causes some semblance of true admiration. But there is still one miscalculation - pebbled lining is practically impossible to remove soot, which most often forms above the firebox door.

Advantages:

• very high quality performance;
• efficiency in space heating - one stack of firewood is enough for 12-20 hours of burning; coal - up to five days;
• good balance of value for money;
• the ability to connect additional circuits, heating elements, and other systems.

Flaws:

• beautiful, but impractical shagreen coating;
• difficulty in moving due to the large weight of the "mini-model".

To complete the picture and clarify what pros and cons this or that type of solid fuel boilers has, let's turn to the comparison table:

1 Buderus Logano G221-25

The best quality
Country: Germany
Average price: 154580 rubles.
Rating (2019): 4.9

German boilers from Buderus are the standard of quality and performance for heating spacious rooms. Despite the Eastern European production, they easily endure the difficult conditions of the harsh Russian winter, have a fairly high level of efficiency (85 percent), and also do not require a large amount of fuel. If the circulation pressure of the coolant is not enough, you can easily “pick up” the pump to the Buderus Logano G221-25, which is what smart users resort to. Heating occurs very quickly, and cleaning of a fire chamber does not cause any difficulties. Thus, 20-kilowatt models are able to heat a room up to 200 square meters. And what a 25-kilowatt boiler is capable of - judge for yourself.

Advantages:

• voluminous firebox - holds logs up to 68 centimeters long;
• nice design;
• excellent workmanship and impeccable design reliability;
• high energy efficiency;
• low maintenance and easy to install.

Flaws:

• high price.

The best inexpensive solid fuel classic boilers

Classic heating boilers are by no means rare devices in use. They are successfully used by people for heating private houses or for installation in houses at their summer cottage. By the way, inexpensive models are ideal for the second than for the first option. They are by no means bad, but their performance is very often overstated, which leads users to be frustrated after the first attempts to use.

3 EVAN WARMOS TT-18

High power rating
Country Russia
Average price: 32850 rubles.
Rating (2019): 4.4

Solid fuel boiler of Russian origin. Not bad to become a source of heat for a country house, but doubtful for use in a private room. His whole trouble lies in the overestimated characteristics - a rated power of 18 kilowatts is designed for heating areas up to 120 square meters, but the effect of heat transfer is practically not felt. The real and most effective heating threshold is no more than 60 square meters. Solid fuel, with optimal regulation of the dampers, burns out in 60-90 minutes, after which the boiler cools down quickly and, if this moment is missed, it requires re-ignition. And you can’t forget about the functions of the stoker either. The result is logical: the model is rather “capricious”, but if you wish, you can always find a compromise that suits both sides.

Advantages:

• very simple installation of the boiler;
• acceptable case quality;
• able to work on wood, coal and peat.

Flaws:

• overestimated data on heated areas;
• the need to select the optimal position of the damper in order to prevent excessive fuel consumption or obstruction of normal combustion.

2 ZOTA Dymok-M AOTV-12M

Optimal balance of performance
Country Russia
Average price: 18,870 rubles.
Rating (2019): 4.6

An ideal model for installation in a summer cottage. Small, but with a decent power potential; unsightly, but overlapping it with its original functionality. 12 kilowatts of thermal power released during the complete combustion of combustible material is enough to heat 80 square meters of area. Even 70% efficiency does not spoil the overall impression of the work. This version of the furnace is combined, so it can also use an electric element (heater) for heating. At the top of the case is a hob - a nice addition to the main function and acceptable characteristics.

Advantages:

• the presence of a hob as a nice addition;
• efficient heating of the area declared by the manufacturers;
• the possibility of connecting a thermal electric heater;
• heating of the coolant is carried out to a temperature of 95 degrees Celsius.

Flaws:

• mediocre appearance;
• slightly overpriced.

1 Lemax Forward-16

Best price
Country Russia
Average price: 16500 rubles.
Rating (2019): 4.8

16 kilowatts of power of the Lemax Forward-16 boiler is enough to heat the premises of the administrative and domestic levels, private residential buildings and even cottages, by independent or forced (with the installation of a pump) circulation of the coolant through the heating water system. This is one of the most successful examples of small but productive installations with an uncharacteristically high (about 75-80 percent) level of efficiency. The simple design contains a solution to many operational problems. From the point of view of the technologist, such measures as, for example, "tamping" the heat exchanger with channels to increase the ultimate tensile strength, look redundant, but justify themselves in terms of durability of use. Such a boiler can last a good seven to nine years, provided that all measures of proper operation are observed without exception.

Advantages:

• the presence of additional elements that positively affect the durability of the installation;
• optimal cost with acceptable quality;
• sufficiently high (atypical) level of efficiency;
• the ability to connect a pump to increase the circulation rate of the coolant;
• the possibility of converting the boiler to work with gas (carried out by installing a gas burner).

Flaws:

Boilers classic premium class solid fuel boilers

More expensive classic boilers are installations of a completely different level. Unlike their budget "brothers", they have a higher percentage of efficiency, power, and overall reliability indicators (not always, but usually). The disadvantages of inexpensive classics, expressed in the deliberate overestimation of characteristics, are absent here, however, the typical disadvantages of classical systems are fully manifested.

3 Kentatsu ELEGANT-03

Optimal cost
Country: Japan
Average price: 35990 rubles.
Rating (2019): 4.8

Kentatsu ELEGANT-03 is a modified heating boiler model, which takes into account all the nuances and errors of previous installations. It is authentically known that those, in turn, did not have effective cooling and allowed the boiler to overheat. In this version, the grate water cooler has become such, and, as practice shows, it copes with the assigned task flawlessly. A thermometer is located on the front wall of the cast-iron housing, showing the actual temperature of the water coolant. A controversial step towards ensuring ergonomics was the breakdown of the boiler into sections. On the one hand, the usable area inside the model has increased, but on the other hand, this has a negative impact on the terms of service.

Advantages:

• the model took into account the mistakes of the past, including those with active cooling;
• availability of equipment for self-service;
• low price;
• high quality and durability of the cast-iron body;
• the presence of a thermometer on the front wall.

Flaws:

• the breakdown of the boiler into sections complicates the process of repair and maintenance in the event of a breakdown.

2 Bosch Solid 2000 B SFU 12

The optimum ratio of price and quality. Choice of Experts
Country: Germany
Average price: 51977 rubles.
Rating (2019): 4.9

Bosch products confidently rank high in all areas of the manufacturer's activities, and a similar trend is also observed in the boiler segment. Bosch Solid 2000 B SFU 12 is a low-power (for elite installations) version of the boiler, which is very fond of users for its good heating capacity. The main "feature" of the model lies in the functionality of use: it can be leading or combined with a gas boiler to increase the efficiency of space heating. So, one of the users successfully used the installation for heating a small workshop, and, as practice has shown, there were no problems with handling. The heat from one load was kept in the system for three to four hours, which indicates the unequivocal expediency of the installation.

Advantages:

• high quality of both the body and the internal structure;
• acceptable efficiency (84-85 percent);
• positive user reviews;
• ease of maintenance;
• possibility of combination with gas boilers.

Flaws:

• low rated power (13.5 kW).

1 Protherm Beaver 50 DLO

The best efficiency indicator (90.2%). High boiler power (39 kW)
Country: Slovakia
Average price: 109500 rubles.
Rating (2019): 5.0

Protherm Bober 50 DLO is a real monster among the elite, a product of Slovak production, which will definitely appeal to everyone who wants to have a high-performance heating boiler.

The Slovaks did not come up with anything new to preserve useful thermal energy. Based on well-known physical laws, facts and practice, they simply stuffed heat-insulating glass wool under the cast-iron body, thereby reducing heat losses. As a result of this simple step, efficiency soared to a crazy 90 percent. By updating the standard form of heat sinks, they were able to increase the volume of the combustion chamber. Thus, with one load, you can catch up with a completely comfortable temperature in a room up to 350 squares. This is largely facilitated by the rated power of 39 kilowatts.

Advantages:

• high technical characteristics;
• appropriate build quality;
• large heated area;
• low heat losses due to the presence of insulating material;
• the presence of an air regulator;
• availability of service tools.

Flaws:

• not detected.

The best solid fuel pyrolysis boilers

The action of pyrolysis, or gas-generating, boilers is based on the combustion of wood gas released from smoldering firewood under the influence of temperature. When passing through the nozzle, the gas burns out, which contributes to the formation of a small amount of ash and soot. The efficiency of such boilers reaches 85 percent. The burning time of one load is from 5 to 12 hours. The disadvantages include the high price and special requirements for fuel - only dry firewood is needed for heating.

3 Wirbel BIO-TEC 35

High level of efficiency (91%)
Country: Austria
Average price: 370216 rubles.
Rating (2019): 4.8

Austrian boiler, able to maintain a comfortable temperature throughout the day. It all depends on the chosen power: in the nominal mode, the burning of firewood and briquettes is no more than four hours. With a decrease in the rate, the rate of complete combustion of the bookmark decreases. According to experts, an important difference between this model and domestic ones lies in the actual pyrolysis process, as opposed to ordinary afterburning. Perhaps the only drawback of the boiler is the need for a permanent connection to the CAS - a specialized heat storage tank. The supplied control panel is responsible for the functioning of the systems.

Advantages:

• the presence of a control panel - full automation of processes;
• after pyrolysis, the process of afterburning of exhaust gases takes place - complete fuel production;
• high power rating.

Flaws:

• failure of the control panel deprives the user of the possibility of manipulating processes;
• very high cost.

2 Bourgeois-K STANDARD-20

Affordable price
Country Russia
Average price: 55470 rubles.
Rating (2019): 4.8

The heating power of the boilers of the Bourgeois-K series has been repeatedly called into question - they say, a value of 20 kilowatts does not mean absolutely anything, since it does not heat the declared area of ​​​​200 square meters. Some of the users take the side of the manufacturers, someone claims to be incapable. Nevertheless, endless disputes have formed a good stir around the lineup, so the technician does not experience a lack of attention. The burning time of one bookmark in it is about ten hours. In terms of price, this boiler is noticeably inferior to "foreign" models, which is its main and irrefutable advantage.

Advantages:

• the cost is lower than that of competitors;
• high thermal power and corresponding heating capacity;
• bookmark burning duration;
• low fuel consumption.

Flaws:

• huge excitement around the possible discrepancy between the characteristics of the declared information.

1 Wattek PYROTEK 36

Best rated heat output (36 kW)
Country: Czech Republic
Average price: 171,900 rubles.
Rating (2019): 4.9

A pyrolysis boiler of a serious European level, created according to all current quality standards. Czech manufacturers decided to release a line of automatic control units, which at the same time made life easier and more difficult for themselves and users. The fact is that “automation” is a delicate thing, and in some especially unfavorable cases (due to accidents) it can easily fail. Repair and adjustment of the control system on a boiler of this level is expensive, which often causes bewilderment and an angry reaction from people. Perhaps this is the only significant drawback of the system, because in other components it is almost perfect.

Advantages:

• the presence of an automatic control system for temperature and regime parameters;
• availability of emergency, boiler and boiler sensors;
• burning of the wood deposit is 12 hours, briquettes - 15-17 hours;
• high quality assembly materials;
• extended complete base.

Flaws:

• adjustment and repair of the automatic control system, in case of failure, will cost the consumer a pretty penny.

The best solid fuel pellet boilers

Pellet boilers are overall installations equipped with bunkers for granulated wood waste. The dimensions of such granules are from 5 to 70 millimeters in length and from 6 to 10 millimeters in thickness. This is the longest way to heat a room. The duration of heating directly depends on the volume of the adjacent bunker, and can be 2-12 days. The main disadvantage of such boilers is scarce fuel. Granular pellets are not sold everywhere, so there is a high probability of equipment downtime.

3 ZOTA Pellet 100А

The optimum ratio of price and quality
Country Russia
Average price: 379,000 rubles.
Rating (2019): 4.9

One such boiler is more than enough to heat the whole building, where there is a water heating system with a pre-installed pump for forced circulation. Manipulation of all aspects of the system is reduced to an electronic control panel. This system is truly indestructible - unless, of course, the user has a reverse goal. The rated power of the boiler reaches 100 kilowatts, but it can be reduced by regulating the air supply. The supply of pellets to the furnace is regulated in the same way. The only and most significant drawback of the system is the excess weight of the structure. 829 kilograms - this is how much this unit weighs, which is not so easy to move even within the delivery task, not to mention the final installation.

Advantages:

• the price corresponds to the declared parameters;
• fuel is supplied to the combustion chamber by a screw mechanism;
• the electronic control system controls all aspects of the unit's functionality;
• high power rating.

Flaws:

• very heavy structure.

2 ACV TKAN 100

Optimal set of parameters in a lightweight package
Country: Belgium
Average price: 554,000 rubles.
Rating (2019): 4.9

Almost complete analogy of the lower model, ACV (ATsV) TKAN 100 is one of the best pellet boilers on the world market. The screw feed mechanism, the presence of an electronic control system, a rated power of 100 kilowatts - all this is not new. The main difference between the two models lies in the parameters of price and weight - ACV weighs only 595 kilograms (significantly less than the opponent), but costs one and a half times more. Nevertheless, based on the words of experts and those rare users who dealt with this boiler (mainly in large enterprises), we can conclude that its quality parameters are very high.

Advantages:

• not the largest weight of the structure;
• high level of efficiency (90%) and rated power;
• the presence of an electronic control system that provides full control over the ongoing processes;
• screw feeder.

Flaws:

• high price.

1 PELLUX COMPACT

The best compact model. The highest level of efficiency (92%)
Country: Sweden
Average price: 220941 rubles.
Rating (2019): 5.0

Although not large, but the high-performance model of the PELLUX COMPACT pellet boiler boasts a high efficiency value - as much as 92 percent at the optimum level of operation. All this and much more is the result of the vigorous activity of the Swedish company NIBE, which specializes in the production of solid fuel boilers. The installed burner makes it possible to obtain such an efficiency value, which has a positive effect on reducing the consumption of granulated pellets while increasing the release of thermal power. Another clear advantage is the presence of a replacement grid in the combustion chamber, which allows you to turn a pellet boiler into a pyrolysis boiler by replacing pellets with dry logs.

Advantages:

• economical burner, which allowed to reduce fuel consumption and increase heat output;
• availability of automated electronic control;
• the ability, if necessary, to switch to another type of fuel - from pellets to firewood and vice versa;
• high level of efficiency;
• high build quality.

Flaws:

• no serious deficiencies were found.

The best double-circuit solid fuel boilers

Double-circuit boilers outperform the models already considered in the sense that they are used not only for heating the house, but also for providing hot water. This is one of the best solutions for private houses located in areas where it is impossible to connect gas and often there are power outages. Double-circuit solid fuel boilers are economical in operation and many models fully satisfy the needs of users in heat and hot water.

3 Bourgeois-K T-50A-2K

Possibility of heating large areas
Country Russia
Average price: 156520 rubles.
Rating (2019): 4.7

One of the most powerful solid fuel double-circuit pyrolysis boilers. Designed for heating large areas up to 500 m 2, it can be used for heating cottages and industrial premises and providing them with hot water. Due to the complete autonomy of the boiler, it can be used in places where electricity is not available. Firewood, wood processing waste and coal of any brand can be loaded into the firebox. Fuel consumption is very economical - the boiler works up to 10 hours on one tab. This produces a small amount of ash, so there is no need for frequent cleaning. The boiler is made of high quality materials, has a long service life (about 15 years), which is confirmed by user reviews.

Advantages:

• heating of areas up to 500 m 2 ;
• reliability, safety and durability;
• ease of management and maintenance;
• work up to 10 hours on one tab;
• a large selection of fuel and its economical consumption.

Flaws:

• high price.

2 Kiturami KF-35A

Best efficiency and economy
Country: South Korea
Average price: 121770 rubles.
Rating (2019): 4.8

The pyrolysis solid fuel boiler is equipped with a second circuit for producing hot water. Many users consider this model one of the best options for rural areas, small houses up to 100 m2. The boiler is characterized by high efficiency (85%) and economical fuel consumption due to the heat exchanger with three combustion stages. Additional savings are achieved by turning off the boiler fan when the required temperature is reached.

It is allowed to unload up to 40 kg of firewood into the oversized combustion chamber at the same time, so constant monitoring of the boiler is not required. Wood briquettes can be used instead of firewood. Operational safety is also enhanced by the presence of overheating and water level sensors.

Advantages:

• electronic control, display;
• high efficiency;
• economical fuel consumption;
• stable temperature maintenance;
• operational safety;
• good feedback.

Flaws:

• only small areas up to 100 m2 can be heated.

1 Karakan 16TPEV 3

The lowest price
Country Russia
Average price: 25300 rubles.
Rating (2019): 4.9

Universal solid fuel boiler of domestic production is designed for heating private houses up to 160 m2, garages, greenhouses, small industrial premises. It has two circuits for heating and hot water. At the top is a cooking stove with one burner for cooking. The boiler is made soundly, from good quality steel. The service life is ensured by a "water head" surrounding it from all sides, preventing overheating and burnout of the metal.

The functionality of the model is enhanced by some design features provided by the manufacturer. This is the possibility of equipping the boiler with a gas burner - it is mounted instead of an ash pan. Also on the side surface there is a hole for mounting a heating element, which allows using electricity as a backup fuel. Despite the low cost, the model is dominated by positive reviews.

Advantages:

• two contours;
• the presence of a hob;
• the possibility of mounting a heating element and a gas burner;
• high quality workmanship;
• deep firebox (56 cm);
• outlet water temperature up to 95 degrees.

Flaws:

• not the highest efficiency (75%).

Boilers of long burning on wood are in demand among summer residents and owners of cottages intended for year-round use. Before installation, you should understand the features, pros and cons of this type of heating of a private house.

Boilers for long-term combustion on wood do not need frequent maintenance, while the cost of each 1 kW / h. thermal energy is several times lower than when using liquid fuel or gas units.

In general, the mechanism of operation is based on long-term smoldering of fuel due to limited air intake - as a result of the bookmark, it lasts approximately 80% longer than when operating a solid fuel boiler of the so-called classical type.

Pros and cons of wood burning boilers for long burning fuel

Advantages:

• no need for frequent refueling - depending on the model chosen, it is necessary to throw firewood into the combustion chamber from once every 3-4 hours and up to 12 hours;
• the possibility of using various types of fuel and their combination;
• the operation of the boiler in most cases is autonomous and does not require connection to other communications;
• relative cheapness of fuel.

Flaws:

• the cost is higher than classic boilers;
• due to the low calorific value of firewood, efficiency from 70 to 89%;
• there is no temperature control mechanism.

Another important disadvantage is the impossibility of operation of heating equipment without human intervention.

Advice. Basically, wood-burning boilers with small combustion chambers are purchased for summer cottages and private cottages. It is possible to increase the efficiency of heating by increasing the combustion chamber, but at the same time, the dimensions of the boiler itself will also increase.

Varieties according to the mechanism of action

• Heating unit with an extended firebox
  The simplest and most common type of wood heating. The main difference from standard solid fuel units is an elongated shape with an elongated firebox. Air supply is dosed directly into the combustion chamber after ignition, due to which the operating time on each laying of firewood is significantly increased (up to 6-8 hours).

• Top burning model
  Unlike standard wood burning boilers, which are ignited from below, top combustion boilers burn fuel under the influence of a burner moving from above and slowly lowering down.
• pyrolysis boiler
  The gas generating, or pyrolysis, unit has a more complex, in comparison with the two previous models, principle of operation and design, due to which it can continuously work up to 12 hours on each fuel tab. In the combustion chamber, firewood does not burn in it, but smolders very slowly, releasing gas in turn. It is discharged into the compartment of the lower chamber, where, under the forced supply of oxygen, it is burned, releasing additional heat.

The most popular units for private ownership

Different models of wood boilers differ from each other:

1. the dimensions of the combustion chambers;
2. construction type;
3. manufacturing material.

The heat exchanger is often made of steel or cast iron. At the same time, cast iron will last longer than steel, cools for a long time, but can collapse with sudden temperature changes. Steel is heat-resistant, but can be subject to corrosion and will last an average of about 10-15 years.

For country heating, simple single-circuit models are most often installed; for houses with year-round living, it is rational to install a double-circuit boiler. In the latter case, one circuit will provide heating, while the second will provide hot water.

Each individual unit has its own special technical characteristics, averaged data:

• power about 100 kW;
• coolant temperature at the outlet is 80 degrees, on the return - at least 50 degrees;
• working pressure on average 1 atm.;
• boiler weight up to 400 kg;
• duration of work on one load of fuel 10−12 hours.

Attention! When buying a wood-fired heating boiler, you need to take into account that most of the units were originally designed to burn brown or hard coal. Their technical data sheets indicate the power and burning time of one bookmark based on work on coal. Therefore, it is necessary to separately calculate the power and time of fuel combustion if the heat generator will work on wood.

How to organize heating

In private cottages designed for year-round use, long-burning boilers equipped with heat exchangers cut into the heating system. The coolant carries the thermal energy obtained by burning firewood to the radiators.

Attention! If a circulation pump is used in an autonomous system, it must be ensured that the boiler heat exchanger can withstand the operating pressure of the entire system.

In small dachas for 1-2 rooms, there is no need for an autonomous heating system; it is more rational to use a Buleryan type convector oven. In models operating on the principle of convection, the walls of the furnaces consist of open metal tubes that are welded to each other in a vertical position.

In the process of burning firewood, heated air rises through the tubes due to the action of convection, and cold air enters in its place.

Fuel selection

You can place a boiler on long-burning wood both in the house and in an equipped boiler room or in a small free-standing extension to a private cottage. In this case, it will be necessary to allocate a separate place for fuel: wood, coal, peat, etc.

The most demanded type of fuel is most often waste from the woodworking industry. But this type of fuel is low-calorie, so its high consumption is required.

The calorific value of the raw material will directly depend on the choice and degree of moisture content of the raw material. The fuel with the highest performance is dry firewood, the quality of which should ideally be the same high quality from purchase to purchase. The maximum fuel length is 40 cm.

Important Mounting Features

The weight of wood-burning boilers reaches several hundred kilograms, so before installing it is necessary to make sure that the floors can withstand the load. For durable floors, a cast-iron product is suitable, in other cases it is worth considering the option of buying a boiler made of steel, which will weigh several times less.

At the place where the installation of the unit is planned, a pillow is usually equipped from concrete (its thickness varies from 100 to 150 mm).

In non-volatile boilers, so-called mechanical thermostats are used. If the model has a fan designed for forced air supply, as well as an electronic control system, then an electrical connection will be required.

It is important to bear in mind that during power outages, operation will be very difficult.

Conclusion

Long-burning boilers deserve special attention when choosing heating equipment for private houses and summer cottages. The most efficient are pyrolysis units, which have the highest efficiency of 97% and a long period of operation without refueling.

Before buying, you should also decide on the material of manufacture, the required volume of the furnace, prepare a boiler room or equip a place for a boiler in the house. Separately, you should take care of choosing high-quality fuel - dry firewood must be prepared in advance, a separate place is allocated for their storage.

- a classic version of solid fuel boilers. It has a simple installation that even an inexperienced user can handle. This series includes boilers with different power ratings, but even the Bober 20 DLO model with a power of 19 kW can heat an area up to 190 m2. The 50 DLO beaver is perfect for a large house, the model has a power of 39 kW. The units are characterized by a high level of efficiency (up to 90%). The boilers are single-circuit with an open type combustion chamber. Coal and firewood are well suited as fuel, according to the manufacturer's recommendations, water must be kept within 3-4 bar.

Advantages of solid fuel boilers of this series:

• durable cast iron heat exchanger;
• the boiler is equipped with a thermometer and a manometer;
• energy independence;
• simple mechanical control;
• high heat output.

1. Buderus Logano - German brand, occupies a leading position among wood-fired boilers. Enjoys great popularity. It has a high level of efficiency and good thermal insulation, which provides excellent heating of a room up to 200 m2. For better performance, you can use a circulation pump. Heats up fairly quickly. Maintenance is not whimsical, well cleaned.

Important advantages are:

• reliability;
• suitable for various heating systems;
• energy efficiency;
• large furnace sizes.

1. Stropuva S- Russian-made single-chamber long-burning boiler. The equipment is characterized by high performance, just one load of firewood or wood briquettes is enough to heat the house for several days. The efficiency level is 91%, and for the S 40 model it reaches 95%, the combustion process itself is very slow. Such a unit can become the basis of an autonomous heating system. Wood, coal, pellets, coke are used as fuel.

Important advantages:

• energy independence;
• compactness;
• ease of maintenance;
• unusual design.

1. – single-circuit boiler with an open type combustion chamber. The heat exchanger is made of cast iron, has a sufficient level of efficiency (up to 80%), and is suitable for heating an area up to 200 m2. Wood must be used as fuel.

Among the advantages are the following:

• economical fuel consumption up to 7 kg per hour;
• noiselessness of work;
• retains heat for a long period;
• high quality heat exchanger.

1. Bosch Solid 2000 - single-circuit boiler of German production, has excellent characteristics. The heat exchanger is made of high-quality steel, while the grate is made of cast iron. The power is enough to heat 160 m2. Can be used in combination with a gas boiler.

Main advantages:

• automatic power control system;
• possibility of loading through the top cover;
• reliability;
• stylish design.

1. ZOTA Mix- boilers of a domestic manufacturer include a large range of reliable units. The MIX series is very popular, it includes devices with an efficiency of up to 80%. These are solid fuel boilers of combined type, they work well on coal, wood, all types of gas, electricity and liquid fuel. The boilers of this series use modern design solutions that give the units important advantages:

• the heat exchanger has an X-shape, which increases the efficiency of heating the coolant;
• the presence of an ejector on the doors ensures complete combustion of fuel;
• easily reconfigured for different types of fuel;
• designed for installation of heating elements with a power of up to 9 kW;
• the presence of an electronic control panel.

1. ZOTA Poplar M not inferior to foreign analogues. The copper is suitable for work in autonomous systems of heating. The equipment has high power, coal and firewood are used as fuel. You can additionally equip the devices with heating elements, then they can work with electric energy or can be modified to work with gas.

Advantages:

• one bookmark of firewood allows you to heat the room for 12 hours;
• mechanical air supply control system;
• modern thermal insulation provides protection against overheating and helps to retain heat;
• the presence of three heat exchangers contributes to faster heating of the room;
• low cost.

1. ZOTA Carbon quite popular series. The boilers are highly economical and efficient. An important advantage is the ability to control the air supplied to the furnace, which allows you to increase the duration of the combustion process. The boiler can be easily installed into an existing heating system. The boiler is able to withstand water pressure up to 3 bar and is non-volatile.

1. ZOTA Pellet- an excellent series of reliable and high-quality boilers. A single-circuit boiler is ideal for heating large houses. The unit is equipped with an automatic fuel supply mode and also has an automatic control system. The equipment has an outdoor temperature control sensor, which allows you to control the temperature of the room. It is recommended to use pellets, firewood, briquettes as fuel.

The main advantages of the series are:

• the presence of a bunker for automatic fuel supply;
• overheating protection function;
• the presence of numerous sensors provides control of the operation of the equipment;
• the possibility of connecting underfloor heating.

1. Roda Brenner – German boilers, equipped with a cast-iron heat exchanger. The series is represented by models with different power levels. Among the advantages are:

• high resource of work;
• high level of efficiency;
• excellent thermal insulation of the firebox;
• possibility of connecting an external burner;
• increased dimensions of the loading hatch.

When choosing solid fuel boilers, you should not focus on the price, first of all decide on the preferred type of fuel, the area of ​​\u200b\u200bthe house, pay attention to the technical parameters of the device. Not reasonable savings in this matter can lead to significant waste in the future.

Models of solid fuel heating equipment are an excellent alternative to their counterparts that run on liquid or liquefied fuel. Recently, boilers designed for long burning have been in great demand. They are able to work offline for several tens of hours. When choosing the best device modifications, you should be guided by consumer reviews. The rating of equipment included in the top 5 most popular models of 2016-2017 will greatly simplify the task.

Working on solid fuel, it is a good alternative to its counterparts running on natural gas, diesel fuel or electricity. Such equipment is especially in demand in non-gasified areas or remote from regional centers, as well as where there are constant interruptions in the operation of power lines. Solid fuels are produced for both industrial and domestic use.

Varieties of solid fuel boilers

In the heating equipment market, boilers are presented in a wide range from different manufacturers. In turn, companies have several lines of their equipment, of which there are many models. This circumstance greatly complicates the choice of the optimal variant for specific working conditions. Therefore, solid fuel can be divided into several categories:

Advice. Boilers with an efficiency of 83 - 90% have an optimal ratio of the volume of the fuel chamber / burning time. At the same time, they operate at the maximum power declared by the manufacturer.

Rating of boilers by type of fuel

Solid fuel boilers are highly versatile. Models designed to work on wood or coal can be used as fuel pellets or briquettes. Based on the technical characteristics of the equipment and reviews of experts and ordinary consumers, you can rank the best models.

Stropuva S 40

A long-burning boiler that runs on wood, coal or wood briquettes takes first place in this rating. The equipment of the Lithuanian-Russian company STROPUVA has the highest efficiency equal to 95%. The impressive volume of the firebox is 320 dm. cube holds 50 kg of fuel. Depending on the mode of operation, one boot of the device ensures uninterrupted operation from 31 to 130 hours. The maximum heated area of ​​the premises is 400 sq.m. It is also designed to run on pellets or coke. Its design provides for one heating circuit, which determines its use only for the heating system. The power of the device is 40 kW, liquid temperature 85 °C, operating pressure 2 bar.

Zota Pellet 25

The boiler is designed to work on wood pellets and ranks second in the ranking. Domestic products are equipped with an LCD display that displays all the necessary information: current status, operating mode setting, errors, etc. The automation system is able to control and manage both the equipment itself and secondary devices. For example, it is able to control up to five circulation pumps of the heating system and underfloor heating. The pellet boiler has a high efficiency of 90%, its power of 25 kW is able to effectively heat a house up to 250 sq.m. One full load ensures uninterrupted operation of the equipment up to 50 hours.

Attention! Boilers operating on briquetted fuel and wood pellets are equipped with an automatic furnace loading system. This feature significantly increases the duration of burning and autonomous operation of the equipment.

Buderus Logano G221-20

The third place is occupied by a German boiler, which has high reliability and stability in its work. It does not have automatic fuel loading, and the maximum length of logs should not exceed 68 cm. High efficiency of 90% and power from 10 to 20 kW compensate for minor shortcomings. The heat exchanger made of cast iron has a high heat transfer coefficient, which ensures rapid heating of the medium to the required temperature. The device can work on wood, coal and coke.

Protherm Beaver 50 DLO

A cast-iron boiler from a Slovak manufacturer ranks fourth. It has fairly high technical characteristics: efficiency - 90%, power - from 35 to 40 kW, depending on the type of fuel, liquid temperature - 90 ° C, operating pressure - 2 bar (maximum - 3 bar), heated area - up to 260 sq.m. The low level of heat loss is due to the use of inorganic wool as an insulating material between the furnace and the equipment body.

Teplodar Kupper OK30

Domestic products are ranked fifth. This is due to the relatively low efficiency of 84%. Due to the high power of 39 kW, it is able to heat the liquid to operating temperature in 20 minutes. It is able to effectively heat a house up to 300 square meters. The boiler is designed to work on wood, pellets, coal, and if necessary, natural gas or electricity can be used as fuel. All its advantages raise the equipment to a fairly high place.

Advice. The boiler, equipped with a cast-iron heat exchanger, has a high degree of heat transfer and service life, which increases its efficiency and reliability several times.

Boiler rating by price

The cost of heating equipment plays one of the key roles when choosing the required model of a long-burning solid fuel boiler. In each price segment there are the best models that are able to meet almost all consumer requirements:

budget class

The low cost of heating equipment does not mean low performance, reliability and lack of stable operation. In this class there are models that are perfect for summer cottages and small private houses:

standard class

The leader in this segment is the Lamborghini WBL 7 boiler. It has a high efficiency of 90%, heat and sound insulation characteristics. The power of 30 kW allows you to heat the area up to 270 square meters. Autonomy of work on one full load - 12 hours, maximum water temperature - 90 ° C.

The second place is occupied by the Czech boiler Viadrus Hercules U22D-4. Due to its efficiency of 80% and a power of 20 kW, it effectively heats a house of 180 - 200 sq.m. Possesses high heat-insulating and sound-proofing properties. Fuel consumption is 6.8 kg/h. The only negative is that it works exclusively on wood.

Alpine Air Solidplus 4 takes the third position. Easy to maintain and operate, boiler power - 26 kW, efficiency - 70%, water temperature: minimum - 30 ° C, maximum - 90 ° C, operating pressure - 3 bar. Runs on wood or charcoal.

Premium class

• First place. Biomaster BM-15 is equipped with an ash pan auto-cleaning system, fuel chamber volume from 200 to 400 l, efficiency 95%, power 16 kW. High performance allows the boiler to be used in multi-storey buildings or hotels, industrial buildings, etc.
• Second place. Viessmann Vitoligno Its power of 30 kW and efficiency of 90% allow heating an area up to 399 sq.m. One download is enough for battery life up to 40 hours. The automation system ensures reliable and stable operation.
• Third place. Candle S. A distinctive feature is the combustion of only the upper part of the fuel. One download provides up to 36 hours of operation. Efficiency 85 - 90%, power from 5 to 35 kW, depending on the model. Operating pressure - 180 kPa, coolant temperature 90 ° C, fuel consumption - 0.29 kg / h.

Solid fuel boilers effectively heat one-story and multi-story private houses, industrial premises: workshops, warehouses, etc., as well as various institutions: schools, kindergartens, hospitals.

How to choose a solid fuel boiler: video

A modern solid fuel boiler has a wide range of positive qualities and is distinguished by high consumer characteristics. This causes its great demand in the heating equipment market.

Types of household solid fuel boilers

Units can use various types of energy resources:

• firewood;
• granules;
• coal;
• peat.

There is also a universal option - a solid fuel stove, which can work effectively with any of the options listed.

The classification is also carried out according to the method of combustion. Boilers can be:

• classic;
• pyrolysis;
• prolonged burning.

Traditional devices are often used for firewood and peat. Their operation is simple, however, during operation, the equipment needs regular replenishment of the furnace - at least four times in twenty-four hours.

Pyrolysis models use the process of gas evolution during fuel smoldering. Thanks to this, the efficiency of the units tends to incredibly high rates. It is pyrolysis equipment that is the most economical option for home heating. However, he also has a minus - whimsicalness in operational conditions. For example, such a coal-fired boiler can only use dried rock, the moisture content of which does not exceed 20%.

Long-burning devices do not need frequent bookmarking: they can work with one serving for a whole day! This is the best option for a large private house. Most often, these units use firewood or briquettes.

Features of solid fuel heating boilers

The pyrolysis-type solid fuel coal-fired boiler has a complex design and a significantly high price; long-burning models are also not entirely simple. But traditional devices are popular home solutions that can be found everywhere.

The units are made of durable heat-resistant materials - cast iron and steel. Iron-carbon devices rarely require cleaning, are characterized by high inertness, and excellent resistance to corrosion. Steel devices warm up much faster, but they cannot boast of such a long working period. At the same time, they are cheaper and lighter than cast-iron "colleagues".

Solid fuel models can be volatile or autonomous. It is worth noting that boilers with automation always require a source of electrical energy, but they provide full automation of work.

Some stoves can be equipped with hobs, which is a great option for a small country house.