Heating boilers are solid fuel. Solid fuel boilers for heating a private home: secrets of selection and characteristics of individual models. Long-burning solid fuel boiler - features of operation and operation

2 Affordable price 3 High level of efficiency (91%)

Solid fuel boilers – alternative way heating of private houses. Electric models consume a lot of electricity, so the effectiveness of their use (especially in large areas) is very questionable. Gas boilers in this regard, they are more justified, but they require the supply of the appropriate type of fuel 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 market realities are such that potential consumers are presented with hundreds, if not thousands, of models of heating boilers for every taste: long-burning and pellet, classic and pyrolysis. It is quite natural that making a good choice in such a situation is very, very difficult. To simplify the situation a little, we have prepared for you a rating of the 18 best solid fuel heating boilers in six different categories.

The best long-burning solid fuel boilers

The advantage of long-term heating boilers over others is clear from the name: the duration of solid fuel burning 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, on on an ongoing basis a volume of thermal energy is released sufficient to heat the entire provided area. They are economical, but have low efficiency and cause a lot of trouble to maintain.

3 NMK Magnum KDG 20 TE

Favorable price
Country: Russia
Average price: 48,000 rub.
Rating (2019): 4.8

A typical representative of long-burning boilers from Russian manufacturer, which was created specifically for the climatic conditions of our vast country. Unlike many other contenders (according to manufacturers’ recommendations), it uses exclusively 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, for example, wood, the situation looks much more sad. Users' feelings from the operation of this boiler are generally positive: the design is serviceable, it is unpretentious in maintenance, and in terms of power in general it is the “golden mean”. I am very pleased with the existing system for regulating fuel combustion, albeit primitive.

Advantages:

• a domestically produced product, which explains the favorable price;
• good workmanship;
• the presence of a heating control system (the connection between the control links is carried out in a chain).

Flaws:

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

2 Stropuva Mini S8

Optimal value for money. User selection
Country: Lithuania
Average price: 56,500 rub.
Rating (2019): 4.8

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

Advantages:

• very high quality execution;
• economical heating of premises - one stack of firewood is enough for 12-20 hours of burning; coal – up to five days;
• good balance between price and quality;
• the ability to connect additional circuits, heating elements, and other systems.

Flaws:

• beautiful, but impractical shagreen covering;
• 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 boiler has, let us turn to the comparison table:

Boiler type	Pros	Cons
Classical	Extremely simple and reliable technology Low price compared to other types Any available type of fuel can be used	– Low efficiency – Inability to accurately adjust the coolant temperature – High sensitivity to moisture content of flammable materials
Long burning	When loaded with coal, the boiler can operate for up to five days. Using wood fuel the operating time is two days Complete energy independence	– Lack of water temperature regulators in the system – Increased requirements for fuel quality – Typically very low efficiency
Pyrolysis	High efficiency Possibility of process adjustment Long intervals between placing flammable materials (up to 12 days) High reliability and workmanship	– Electrical connection required – Without lining, the combustion chamber is very sensitive to raw fuel – If the lining is not at the proper level, the chamber walls burn out and the boiler fails
Pellet	High efficiency Complete process control via electronic control	– High cost and large dimensions of boilers – High cost and shortage of fuel – Requires a power connection

1 Buderus Logano G221-25

Best quality
Country: Germany
Average price: RUB 154,580.
Rating (2019): 4.9

German boilers from Buderus are the standard of quality and efficiency for heating spacious rooms. Despite their Eastern European production, they can easily withstand the difficult conditions of the harsh Russian winter and have quite high level 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 “hook up” a pump to the Buderus Logano G221-25, which is what savvy users resort to. Heating occurs very quickly, and cleaning the firebox does not cause any difficulties. Thus, 20-kilowatt models are capable of heating a room of up to 200 square meters. And judge for yourself what a 25-kilowatt boiler is capable of.

Advantages:

• voluminous firebox – accommodates logs up to 68 centimeters long;
• nice design;
• excellent workmanship and impeccable design reliability;
• high energy efficiency;
• unpretentious in maintenance and easy to install.

Flaws:

• high cost.

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 in their summer cottages. By the way, inexpensive models are ideal for the second rather than the first option. They are by no means bad, but their characteristics very often turn out to be overestimated, which leads users to disappointment after the first attempts to use them.

3 EVAN WARMOS TT-18

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

Solid fuel boiler of Russian origin. Not bad to become a source of heat for country house, but is doubtful for use in private premises. Its whole problem lies in its overstated characteristics - the rated power of 18 kilowatts is designed to heat 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 quickly cools down and, if this moment is missed, requires re-ignition. And you can’t forget about the functions of a stoker either. The result is logical: the model is quite capricious, but if desired, you can always find a compromise that suits both parties.

Advantages:

• very simple installation of the boiler;
• acceptable quality of the case;
• capable of working on wood, coal and peat.

Flaws:

• inflated data on heated areas;
• the need to select the optimal position of the damper to prevent excessive fuel consumption or interference with normal combustion.

2 ZOTA Dymok-M AOTV-12M

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

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

Advantages:

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

Flaws:

• mediocre appearance;
• a little overpriced.

1 Lemax Forward-16

Best price
Country: Russia
Average price: 16,500 rub.
Rating (2019): 4.8

16 kilowatts of power of the Lemax Forward-16 boiler is enough to heat administrative and domestic premises, private residential buildings and even cottages, through 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 a technologist, such measures as, for example, “padding” the heat exchanger with channels to increase the ultimate tensile strength look redundant, but are justified from the point of view of durability of use. Such a boiler can last a good seven to nine years, provided that all correct operation measures are followed without exception.

Advantages:

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

Flaws:

Boilers: classic solid fuel boilers of premium class

More expensive classic boilers are installations of a completely different level. Unlike their budget “brothers”, they have a higher percentage of efficiency, power, as well as overall reliability indicators (not always, but as a rule). 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 rub.
Rating (2019): 4.8

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

Advantages:

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

Flaws:

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

2 Bosch Solid 2000 B SFU 12

Optimal value for money. Experts' Choice
Country: Germany
Average price: 51977 rub.
Rating (2019): 4.9

Bosch products confidently occupy high places 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 luxury installations) version of the boiler, which is very popular among users for its good heating ability. The main feature of the model is its functionality: it can be a leading boiler or combined with a gas boiler to increase the efficiency of heating the premises. Thus, one of the users successfully used the installation to heat a small workshop, and, as practice has shown, there were no problems with handling. The heat from one load remained in the system for three to four hours, which indicates the clear feasibility of the installation.

Advantages:

• high quality of both the case 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: 109,500 rub.
Rating (2019): 5.0

Protherm Beaver 50 DLO is a real monster among the elite, a Slovak-made product that will definitely appeal to anyone 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 known physical laws, facts and practice, they simply stuffed thermal insulating glass wool under the cast iron body, thereby reducing heat losses. As a result of this simple step, efficiency skyrocketed to a crazy 90 percent. By updating the standard shape of the heat sinks, they were able to increase the volume of the combustion chamber. Thus, with one load you can achieve a completely comfortable temperature in a room of up to 350 square meters. This is largely due to the rated power of 39 kilowatts.

Advantages:

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

Flaws:

• not found.

The best solid fuel pyrolysis boilers

The action of pyrolysis, or gas generator, 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 ranges from 5 to 12 hours. The disadvantages include the high price and special requirements for fuel - only dry wood is needed for heating.

3 Wirbel BIO-TEC 35

High level of efficiency (91%)
Country: Austria
Average price: RUB 370,216.
Rating (2019): 4.8

An Austrian boiler capable of maintaining a comfortable temperature throughout the day. It all depends on the chosen power: in the nominal combustion mode, firewood and briquettes last no more than four hours. As the indicator decreases, the rate of complete combustion of the bookmark decreases. According to experts, an important difference between this model and domestic ones is the occurrence of a real pyrolysis process, as opposed to ordinary afterburning. Perhaps the only drawback of the boiler is the need for a constant connection with CAS - a specialized heat storage tank. The supplied control panel is responsible for the operation of the systems.

Advantages:

• presence of a control panel – complete automation of processes;
• after pyrolysis, the process of afterburning the exhaust gases occurs - complete exhaustion of fuel;
• high rated power.

Flaws:

• failure of the control panel deprives the user of the ability to manipulate processes;
• very high cost.

2 Bourgeois-K STANDARD-20

Affordable price
Country: Russia
Average price: 55,470 rub.
Rating (2019): 4.8

The heating power of the Bourgeois-K series boilers has been repeatedly questioned - they say, a value of 20 kilowatts means absolutely nothing, since it does not heat the declared area of ​​200 square meters. Some users take the side of the manufacturers, while others claim inability. Nevertheless, the endless debate has created a good buzz around the model range, so the technology does not experience a shortage 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;
• burning duration of the bookmark;
• low consumption of combustible material.

Flaws:

• there is a huge stir around the possible discrepancy between the characteristics of the declared information.

1 Wattek PYROTEK 36

Best rated thermal power (36 kW)
Country: Czech Republic
Average price: 171,900 rub.
Rating (2019): 4.9

Pyrolysis boiler of a serious European level, created in accordance with all current quality standards. Czech manufacturers decided to release a line of automatic control units, which simultaneously made life easier and more difficult for themselves and their users. The fact is that “automation” is a delicate thing, and in some particularly unfavorable cases (due to accidents) it can easily fail. Repairing and setting up a 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 operating parameters;
• presence of emergency, boiler and boiler sensors;
• burning of wood stock is 12 hours, briquettes - 15-17 hours;
• high quality assembly materials;
• expanded complete base.

Flaws:

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

The best solid fuel pellet boilers

Pellet boilers are large installations equipped with bunkers for granulated wood waste. The sizes of such granules range from 5 to 70 millimeters in length and from 6 to 10 millimeters in thickness. This is the longest-lasting method of heating 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. Granulated pellets are not sold everywhere, so there is a high probability of equipment downtime.

3 ZOTA Pellet 100A

Optimal price-quality ratio
Country: Russia
Average price: 379,000 rub.
Rating (2019): 4.9

One such boiler is more than enough to heat an entire 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 the electronic control panel. This system is truly indestructible - unless, of course, the user has the opposite 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 firebox is regulated in the same way. The only and most significant drawback of the system is overweight designs. 829 kilograms - that’s how much this unit weighs, which is not so easy to move even within the scope of the delivery task, not to mention the final installation.

Advantages:

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

Flaws:

• very heavy weight of the structure.

2 ACV TKAN 100

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

Almost a complete analogy of the lower model, ACV (ATsV) TKAN 100 is one of the best pellet boilers on the world market. A 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 price and weight parameters - the ACV weighs only 595 kilograms (significantly less than its opponent), but costs one and a half times more. However, based on the words of experts and those rare users who dealt with this boiler (mainly at large enterprises), we can conclude that its quality parameters are very high.

Advantages:

• not the heaviest weight of the structure;
• high level of efficiency (90%) and rated power;
• the presence of an electronic control system that exercises full control over ongoing processes;
• screw fuel supply mechanism.

Flaws:

• high cost.

1 PELLUX COMPACT

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

Although not large, the high-performance model of the PELLUX COMPACT pellet boiler can boast a high efficiency value - as much as 92 percent at the optimal operating level. All this and much more is the result of the vigorous activity of the Swedish company NIBE, specializing in the production of solid fuel boilers. This efficiency value is achieved by the installed burner, 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 mesh in the combustion chamber, which allows you to turn a pellet boiler into a pyrolysis boiler by replacing the pellets with dry logs.

Advantages:

• economical burner, which reduced fuel consumption and increased thermal power;
• 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 are superior to the models already discussed in that they are used not only for heating a house, but also for providing hot water supply. This is one of best solutions for private houses located in areas where gas connection is impossible and there are often power outages. Double-circuit solid fuel boilers are economical to operate and many models fully satisfy the needs of users for heat and hot water.

3 Burzhuy-K T-50A-2K

Possibility of heating large areas
Country: Russia
Average price: 156,520 rub.
Rating (2019): 4.7

One of the most powerful solid fuel double-circuit pyrolysis boilers. Designed for heating large areas up to 500 m2, can be used for heating cottages and industrial premises and providing hot water supply in them. Thanks to the complete autonomy of the boiler, it can be used in places where electricity is not available. You can load firewood, wood processing waste and coal of any brand into the firebox. Fuel consumption is very economical - the boiler operates for up to 10 hours on one fill. This produces a small amount of ash, so there is no need for frequent cleaning. The boiler is made of high-quality materials and has a long service life (about 15 years), which is confirmed by user reviews.

Advantages:

• heating of areas up to 500 m2;
• reliability, safety and durability;
• ease of management and maintenance;
• work up to 10 hours on one bookmark;
• large selection of fuel and its economical consumption.

Flaws:

• high price.

2 Kiturami KF-35A

Best efficiency and cost-effectiveness
Country: South Korea
Average price: 121,770 rub.
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 most best options For rural areas, small houses with an area of ​​up to 100 m2. The boiler is characterized by high efficiency (85%) and economical fuel consumption due to a heat exchanger with three combustion stages. Additional savings are achieved by turning off the boiler fan when the required temperature is reached.

Up to 40 kg of firewood can be simultaneously unloaded into the oversized combustion chamber, so constant monitoring of the boiler operation is not required. Instead of firewood, you can use wood briquettes. 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 reviews.

Flaws:

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

1 Karakan 16TPEV 3

Lowest price
Country: Russia
Average price: 25,300 rub.
Rating (2019): 4.9

A domestically produced universal solid fuel boiler is designed for heating private houses with an area of ​​up to 160 m2, garages, greenhouses, and small industrial premises. It has two circuits for heating and hot water. At the top there is a hob with one burner for cooking. The boiler is made well, from good quality steel. The service life is ensured by a “water tower” surrounding it on all sides, preventing overheating and burnout of the metal.

The functionality of the model is enhanced by some design features provided by the manufacturer. It is possible to equip the boiler with a gas burner - it is installed instead of an ash pan. There is also a hole for mounting a heating element on the side surface, which allows you to use electricity as a backup fuel. Despite the low cost, positive reviews prevail about the model.

Advantages:

• two circuits;
• the presence of a hob;
• possibility of installing 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%).

• We offer to buy solid fuel boilers with delivery in the Tavago online store.
• The price for solid fuel boilers is from 12,847 rubles.
• Read instructions and reviews about Solid fuel boilers.

The Tavago company brings to your attention high-quality, productive solid fuel boilers at the best prices. Large selection, individual approach, delivery, installation - all this awaits you only in our company. You can place an order through the website or by telephone. In any case, it will take you no more than a few minutes!

Reliable heating system for a country house

Maintaining a house in a habitable condition, provided that it is remote from the main communications, becomes a rather difficult task, associated with many difficulties and problems. If it is relatively simple to provide a house with electricity and water - it is enough to install a generator and arrange the supply of imported water - then with heat everything is somewhat different. Heating premises requires more significant labor, time and financial costs, but there are also solutions here. One of the most rational ways to heat the premises of a house is to install a solid fuel boiler, that is, a boiler that produces heat by burning solid fuel. The fuel here can be coal, wood and other energy sources that can provide enough heat to ensure a comfortable temperature throughout the entire house.

Solid fuel boilers: operating features

Prices for solid fuel boilers can hardly be called low, but in the case of settlement home there is often no other way out. Naturally, solid fuel boilers are practically not used in the city or in holiday villages, since there are a lot of other, cheaper ways to provide a home with heat. However, to gasify private house sometimes it is simply impossible, which is why solid fuel boilers become the only heating option. It is also worth buying a solid fuel boiler because it has a fairly high efficiency at a relatively low cost of fuel.

For a long time, solid fuel boilers were not very popular due to the impossibility of automating their operation process. Today this problem was completely resolved, and models capable of operating in autonomous mode for a long time entered the market. The use of such long-burning solid fuel boilers makes it possible to provide the house with the necessary amount of heat without spending time on constant reloading of fuel. It is enough to load fuel once, and the boiler will operate efficiently throughout the day.

Types of boilers

Solid fuel boilers can differ in three main characteristics:

• According to the type of fuel used for work. The source of thermal energy can be coal or wood, as well as derivatives of these materials, made in the form of briquettes or granules;

According to the type of technological scheme of fuel combustion. Depending on this characteristic, solid fuel boilers can be divided into classic and pyrolysis. Note that the second type burns fuel more efficiently, that is, with the same volume, a pyrolysis boiler will produce significantly more heat than its classic counterpart. The cost of such a boiler is higher, but the costs are recouped within several years due to savings on resources;

According to the design and materials of manufacture. There are quite a few design options for a solid fuel boiler, but this does not change the principle of their operation. The materials used to manufacture the device can be either cast iron or steel.

To heat a private home, it is better to choose a solid fuel boiler made of steel and having a pyrolysis technological scheme fuel combustion. IN in this case you will be able to provide heat to a house of any size, you will be confident in the reliability and durability of the boiler, and you will also be able to save on the purchase of fuel.

You can purchase such a boiler, as well as any other types of it, from Tavago. We will offer you a wide selection of boiler models and provide detailed advice on any issue that interests you. Contact us!

A rational owner always thinks about how to wisely invest money in purchasing a solid fuel boiler for a private home and reduce the costs of its further operation during the heating season. Which one is better, more profitable, more convenient? What heating boilers exist, their types, advantages and disadvantages will be discussed in this article.

Prices for electricity and gas are rising from year to year, and it is not always possible to connect to the main line. Thus, a solid fuel boiler can be considered reliable, autonomous and economical option heating the house. With its pros and cons.

Home heating boiler

For convenience, all existing boilers that operate on solid fuel can be divided as follows:

1. Boilers in which fuel is supplied automatically to the firebox are pellet solid fuel boilers. They run on solid granular fuel. Pellet boilers are often classified as long-burning boilers.
2. Boilers that require manual fuel loading. They can also be divided into groups:

• classic or traditional boilers;
• top combustion pyrolysis boilers;
• long burning boilers.

The general parameter by which boilers are usually selected is the fuel combustion time for one load, as well as the type of fuel on which they operate effectively.

Solid fuel boiler with hob

When choosing a solid fuel boiler for heating a cottage or private home, you should pay attention to the following parameters:

• number of working circuits. A double-circuit boiler will heat the room and provide hot water;
• the presence of a hob will help solve the problem of cooking;
• boiler power and its efficiency. A boiler with a power of 5-12 kW can heat a house with an area of ​​100 square meters. m;
• dimensions, weight and ease of installation;
• boiler design and fuel loading method;
• fuel used.

Advice. Solid fuel boilers are produced only as floor-standing ones; it is impossible to hang such a boiler on the wall.

Classic solid fuel boilers

This is the most common type of boiler. Made from cast iron or heat-resistant steel. Heat is generated by burning solid fuel. Solid fuel boilers operate on coal, wood, peat, and heating pellets. Used for heating and also for heating water. Most often they are heated with coal, since wood burns quickly. The temperature sensor is responsible for maintaining the temperature in the boiler and regulates the air damper. When the temperature drops, the sensor opens the damper slightly and vice versa.

Classic solid fuel boiler

They operate from 2 to 6 hours on one load of fuel. Absolutely autonomous: do not depend on the electrical network or the availability of gas. More modern modifications have built-in electronic temperature sensors and a control panel, as well as a boost fan, which makes the operating process more comfortable.

Advantages:

• time-tested technology;
• simple and reliable to use;
• relatively low cost, wide range of manufacturers, models and prices for boilers;
• the ability to use fuel available in your region;
• autonomy - no connection to the power grid required;
• low level of efficiency;
• simple boiler piping;
• low cost of fuel compared to energy resources and gas tariffs.

Be prepared to need significant fuel storage space

Flaws:

• it is necessary to equip a warehouse for storing fuel reserves;
• shallow depth of temperature control;
• inertia of the fuel combustion process;
• the need for fuel delivery and preparation.

Advice. The coal burns slowly and gradually, maintaining approximately the same temperature in the firebox. Firewood and its by-products ignite faster, so they cannot immediately fill the entire firebox. This will lead to a short-term release of a large amount of heat and overheating of the boiler, which is very dangerous.

Pyrolysis solid fuel boilers

Pyrolysis boilers are a relatively new technology. This type of boiler is used for heating and water heating. They have two combustion chambers. In the first chamber, the fuel itself burns under an artificial oxygen deficiency. During combustion, volatile substances are released, which burn in the second chamber.

Construction of a pyrolysis boiler

Pyrolysis boilers operate on wood, fuel briquettes, pellets, brown coal, there are models that consume coke and coal. The fuel must be dry, otherwise water vapor entering the second chamber can extinguish the boiler. Some pyrolysis boilers are equipped with a thermostatic air regulator and devices that protect the boiler from boiling. In case of boiling, the thermostatic valve will release the water by opening the damper and the temperature inside the boiler will drop.

Advantages:

• Efficiency of at least 90%;
• minimal amount of ash and soot formation;
• Additional fuel is required 2-4 times;
• convenient and reliable to use;
• the fuel burns completely, the ash pan does not need to be cleaned often;
• reduced emissions of harmful smoke into the atmosphere;
• You can burn large unsplit wood.

Afterburner chamber of a pyrolysis boiler

Flaws:

• complex boiler design;
• high cost;
• the wood must be dry (no more than 20% humidity);
• connection to the electrical network is required;
• at a load of half power, combustion is unstable, tar forms in the flues;
• There is no way to automate the fuel supply process.

Advice. The boiler can be placed in almost any technical room with an organized air flow. The chimney can be installed internally or externally.

Pellet solid fuel boilers, boilers with automatic fuel supply

In Europe, this type of boiler is very popular. They are used for heating, as well as for heating water for domestic needs. Pellets are used as fuel for these boilers - pressed shavings, sawdust from wood. The main important convenience is automation. They do an excellent job of maintaining the set temperature. All you need to do is fill the bunker with fuel at the beginning of the heating season. The boiler has a built-in auger that will independently feed pellets into the firebox. The only disappointing thing is that you can’t burn anything other than pellets.

Automatic pellet boiler

Advantages:

• durability, service life more than 20 years;
• automation of fuel refilling;
• automatic ignition;
• Efficiency 90%;
• Stably maintain the set temperature.

Flaws:

• works only on wood pellets;
• high cost of fuel and equipment;
• connection to the mains is required.

Important. Using unsuitable fuel leads to excessive fuel consumption and can cause equipment failure.

Long burning boilers

This type of boiler can operate on coke, brown and hard coal, peat briquettes, firewood, wood chips, and sawdust. Those models that are designed to work only on wood differ only in the air supply system and the materials from which the combustion chamber is made. You can load up to 50 kg of fuel at a time. The burning time of firewood is from 12 hours to two days. If the firebox is filled with coal, the burning time will be from four days to a week. If it’s warmer outside and there’s no need to heat it too much, you can reduce the boiler power by 10% simply by lowering the fuel burning rate.

Long-burning boilers are very convenient because they do not require constant fuel supply

Long-burning boilers are new generation boilers. In many models, the boiler has a bottom, which indicates complete tightness. Solid fuel burns in such a boiler from top to bottom. This is why they can run for so long on one load. The fuel does not burn all at once, but only the first 10-20 cm. The air supplied to the firebox is heated by the outgoing smoke, and then enters the combustion zone using a recuperator. The air distributor is always at the fuel combustion level.

Advantages:

• non-volatile;
• with one load, they work with coal for up to 5 days, and with firewood for up to 2 days;
• deep power regulation;
• the ash is removed 2-3 times a month;
• the price of such a boiler is lower than a pyrolysis boiler, but higher than a classic long-burning solid fuel boiler.

Installed long burning boiler

Flaws:

• Efficiency is low;
• full cycle operation without the possibility of additional fuel loading;
• Additionally, it is necessary to install a circulation pump that operates from the network.

Advice. Some manufacturers provide replaceable burners, which allows the user to easily switch from one type of fuel to another (for example, from coal to pellets) without losing the comfort of using the boiler. The user only needs to change the burner and reconfigure the automation.

How to heat a house with a solid fuel boiler: video

Owners of private houses who use for heating are well aware of the problem of cooling down the home after the firewood or coal has completely burned out. This happens at night or in the absence of the owners, when there is no one to throw new logs into the firebox. The issue can be resolved in several ways:

• use a combined wood-electric heating boiler;
• install 2 separate heat sources - solid fuel and electric;
• do not mess with electricity and install a long-burning wood-burning boiler.

We suggest that you consider the listed options in detail in order to choose the most comfortable method of heating a country house.

Application of combi boilers

Heat generators operating on various energy sources did not appear yesterday. Gas-firewood has been known since the times of the USSR; in them, to switch to wood, the burner device had to be removed. In modern heating units, solid fuel is combined not only with gas, but also with electricity, which is more important for users. A homeowner who decides to buy a heating boiler using wood and electricity solves several issues in one fell swoop:

1. It uses two energy carriers for heating, alternative to natural gas.
2. Eliminates cooling of the premises of a private house when the contents of the firebox are completely burned and a new portion of coal or firewood is not loaded.
3. Increases the convenience of using water heating, since you no longer need to get up in the middle of the night and run to the boiler room.

Construction of an electric wood-burning boiler "Kupper" from the manufacturer "Teplodar"

The new generation combined heat generators are designed in such a way that the electric heating is switched on automatically when the water in the boiler tank begins to cool. Switching back to wood burning without the intervention of the owner of the house is impossible.

The principle of operation of an electric wood-burning boiler

The design of this type of heater is similar to that of a traditional solid fuel boiler, consisting of the following main elements:

• combustion chamber (firebox), where logs and coal are loaded;
• from the outside it is washed by a coolant enclosed inside a water jacket;
• a fire-tube or water-tube heat exchanger, where combustion products give off most of the heat to water before being released out through the chimney;
• the grate is located at the bottom of the firebox, and under it there is an ash chamber;
• the firebox and ash pan at the front are equipped with doors;
• To change the combustion intensity in the heat generator, a mechanical draft regulator or a fan - air blower is used (if manual control of the air damper is not provided).

Scheme of the Kuper-Carbo mine-type electric-coal heat generator

Domestic combined heating boilers are distinguished by the design of their water jacket, which provides space for installing a block of tubular electric heaters - heating elements. The heating part of the element is immersed in the coolant, and the contacts are brought out and connected by cable to the control panel.

The operating algorithm of a solid fuel heater equipped with electric heaters looks like this:

1. The boiler is fired and heated as usual. While the wood is burning, the temperature of the coolant is maintained by a mechanical thermostat or a fan together with a sensor, and the heating elements are inactive.
2. After the contents of the firebox burn out, the water in the system begins to cool, which is recorded by the temperature sensor. When the coolant has cooled to a certain point, the sensor signal will turn on the heating element (one or more). From this moment on, the boiler switches to electricity.
3. After loading the next portion of solid fuel, the coolant is heated from the side of the combustion chamber, and the electrical part is automatically turned off until the next time it cools down.

The heater control unit can maintain a certain water temperature based on the readings of the water or air sensor

The transition from one mode to another allows for continuous heating of water, which is what the inhabitants of a private house require for comfort.

Pros and cons of universal heat generators

By installing a combined boiler for heating a private house with wood and electricity, you receive the following bonuses:

1. Thanks to built-in heating elements water heating will continue to function after the main firebox goes out. This will keep the house warm, and will prevent pipes and heating radiators from defrosting during your absence.
2. Comfort. Supporting the heating of the system with electricity will save you from night trips to the boiler room to lay logs.
3. If electricity metering is carried out according to a multi-tariff scheme, then in addition to convenience you will receive savings from the operation of heating elements at night.

Electric heaters of a combined boiler are designed only to maintain the temperature of the water in the system; they cannot fully replace the combustion of solid fuel. The reason is the insufficient power of the heating element unit installed by manufacturers on TT boilers.

Example: all “Kupper” units of the famous Russian brand “Teplodar” with a power of 9...20 kW have the same electric heaters with a heat output of 6 kW.

This is what a 6 kW heating element block looks like, used in Russian-made Teplodar, Prometheus and ZOTA wood-burning heaters

This feature of combined heat generators can easily be considered a disadvantage. The exception is low-power heaters (the same “Cooper” 9 kW with 6 kW heating elements), purchased for small-sized dwellings (up to 100 m²). In this case, the heat transfer from electricity is comparable to burning wood, so in moderately cold weather (down to about -5 °C outside), the heaters are able to completely heat a modest-sized house.

Another important point. Like a conventional solid fuel heater, a wood-electric combination boiler should be connected to water heating through a three-way valve, as shown in the diagram below. A small circulation circuit serves to protect the firebox from the harmful effects of condensation during kindling.

To prevent condensation from appearing on the walls of the combustion chamber due to temperature changes, the TT boiler must be connected according to the standard circuit with a three-way valve

If the power of the heating elements is enough to heat the coolant to a temperature of +55 °C and above, then condensation will never form in the combustion chamber of the combined boiler during lighting, and the unit with a three-way mixing valve becomes seemingly irrelevant. In reality, a small circulation circuit is still needed, at least in case of a power outage or failure of one of the heating elements.

Heating a private house with wood and electricity from one boiler also has other negative aspects:

1. The heater block takes away the useful volume of the firebox to the detriment of combustion duration per load.
2. The operation of the unit depends on the stability of the power supply.
3. The prices of combined products are higher than classic solid fuel boilers.
4. The efficiency of electric heaters when operating is reduced by 2-5% due to the air flow passing through the cooled firebox. The reason is the constant draft in the chimney, forcing air from the premises to escape through the fuel duct into the chimney pipe and cool the water jacket of the heater.

In order to fully replace natural gas with electricity and firewood, it is better to take a closer look at another option for heating the building - install 2 separate heat sources, properly tie them and connect them to the heating system.

Connecting boilers using wood and electricity

Without a doubt, purchasing, installing and wiring two separate units will cost you more than one combined heat generator. But, implementing this option, you get full heating with two energy carriers, operating effectively in automatic mode.

Reference. In non-gas private houses Russian Federation The combined operation of a solid fuel and electric boiler is used quite often, since this is the most convenient way to heat a home with wood. The combination of gas and wood is no less common, and the third place is occupied by the so-called multi-fuel boilers, which we will discuss in a separate article.

In our pair of heat sources, the wood (coal) boiler is the main one, and the electric one is the auxiliary unit. As the latter, you can use any of the three types of electric boilers offered on the market:

• traditional heating element with built-in circulation pump and control unit;
• electrode with remote control panel;
• induction with separate remote control.

We will not analyze the advantages and disadvantages of each type of electric boilers; this is the topic of another article. Here we will show in diagrams how to connect boilers using wood and electricity, so that the second one supports the first one automatically. Let's start with the joint piping of a wood-burning and heating element heating unit:

Connection diagram for 2 boilers - with electricity and wood. Thermostats ensure automatic starting of the electric boiler after the wood boiler is stopped and vice versa.

Reference. The presented circuit can be used for joint connection with gas wall-mounted boiler, which is placed in place of the heating element.

The system operation algorithm looks like this:

1. The TT boiler is inactive and its circulation pump is switched off. Heating devices receive heat from an electric boiler, which is guided by a room thermostat, where you have set the desired temperature. To prevent the coolant from moving in a circle through a parallel ring, the circuit uses 2 check valves.
2. You have melted a solid fuel unit. For some time it will begin to gain temperature, and the water will circulate in a small circle, directed by a three-way valve with a thermal head. The pump will turn on at the command of the overhead thermostat installed on the supply pipeline.
3. When the coolant in the small ring heats up to 55 °C, the temperature sensor of the thermal head located on the return line will operate. The three-way valve will open slightly and heat will flow into the heating system.
4. The electric boiler will turn off the heating based on the signal from the room thermostat and go into standby mode.
5. After the solid fuel burns out, the water in the system, followed by the air in the rooms, will begin to cool. The overhead thermostat of the TT boiler will “see” that the coolant has cooled down and will stop the pump.
6. When the temperature in the house drops to the value you set, the room thermostat will turn on the electric boiler again.

Important! Since the internal circulation pump of a wall-mounted heat generator cannot be turned off, a solid fuel heat source requires. As a rule, a pump with a pressure of 0.6 Bar is sufficient (in an electric boiler it is usually set at 0.5 Bar). Point two: install all overhead sensors and thermostats on metal pipes; they will lie on metal-plastic or polypropylene.

Our expert will tell you in detail about how to properly connect an electric and solid fuel boiler in his video:

Induction and electrode heat generators are not equipped with their own filter and circulation pump, so the latter will have to be purchased and installed separately. This is all the difference in the connection diagram for heaters of this type, only the pump unit needs to be connected to the network through the control cabinet so that the room thermostat turns it off together with the electric boiler, as shown in the diagram:

In this scheme, the circulation pump of the electric boiler will be turned off along with it thanks to a separate control cabinet

If the heating system of a private house consists of several circuits (radiators on different floors, heated floors and an indirect heating boiler), then to work together, the wood-burning and electric boiler are connected using the method of primary and secondary rings. The principle of operation of this type of strapping is described Using long-burning TT boilers

Not every homeowner has technical feasibility connect powerful electrical equipment, which includes combined and pure electric boilers. The reason is the limitation of the allocated power limit for a private house. The size of the limit depends on the capacity of local power supply networks, which the owner of a country cottage cannot increase.

In the absence of natural gas on the site or with the high cost of connecting to the main line, there is only one real solution - buy a long-burning wood and coal boiler or make it yourself. The operating time from 1 load for a conventional TT boiler is 3-6 hours, which forces the owner to work near it as a stoker. A comfortable interval between fuel additions is at least 8 hours, and not every heater provides that much.

The latest pyrolysis boiler with an increased firebox volume ATMOS D30

The trouble is that any seedy manufacturer calls their products long-burning boilers in order to sell them to an ignorant user. You can recognize the correct unit among other heat generators by the following features:

• with the same power, a boiler with a large power reserve is equipped with a firebox of increased volume (from 100 l) and differs in size;
• the passport indicates a burning duration of 8 hours (on wood);
• For convenience, the unit is equipped with an additional loading door.

Detailed information about heat generators of this type and recommendations for their selection have been published.

Conclusion

We will offer several conclusions simple tips on organizing comfortable heating of a private home using solid fuel and electricity:

1. A combination boiler for wood and electricity is one of the best options for a small country house or residential house. In a cottage on 2-4 floors, heating elements can only protect the system from defrosting.
2. In a country house over 100 m², it is appropriate to use 2 separate heat sources with the correct piping.
3. When electricity is supplied intermittently or the power limit does not exceed 5 kW, you should not mess with electricity at all. Find the opportunity to purchase a long-burning heat generator, although the price will be more expensive than usual.
4. Don't throw away the opportunity to arrange air heating on wood from the stove, if it has already been purchased or built. As a safety net at night, install electric convectors or fan heaters equipped with thermostats.

The latter method is often used to heat wooden houses in the Scandinavian countries, where homeowners are familiar with bitter frosts first hand. The last video about this:

Solid fuel boilers designed for the heating system of a private house are very effective solution under certain conditions. Electric heating is associated with high costs if it is necessary to heat a large area; gas devices are more economical in this regard, but it is not always possible to provide the house with adequate fuel. Wood, coal and other similar materials are used as fuel for solid fuel boilers.

The market today offers a wide selection of models of such units of various kinds: long-burning, pellet, traditional, pyrolysis, and so on. Making the right choice in such conditions is not as easy as it might seem at first glance. We tried to make this task as easy as possible for you and compiled a rating of the top 10 best boilers. When compiling it, a large number of similar devices were analyzed, we relied on reviews from users and experts, and compared the price-quality ratio.

10+. 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. Thanks 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.

10. 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.

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:

• Great price.

9. ZOTA Topol M 20

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

8. 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.

7. 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 filling the combustion chamber with bulk fuel will be much more convenient. 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.

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.

6. EVAN WARMOS TT-18

This boiler can be used not only for residential, but also for industrial or agricultural premises. It can be used as a main 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.

5. 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. Fuel chamber large sizes, it is protected from overheating due to the water jacket.

To increase the strength of the equipment, the heat exchanger is reinforced with channel bars, 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;
• Low cost.

Flaws:

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

4.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 that can withstand severe physical activity, including the high pressure of the coolant itself. The grates here are cooled, and the overall productivity is high. A device is manufactured on the basis of a multi-section heat exchanger, which is produced according to new technology AminGas. 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.

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.

3. 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 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.

2. 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

Advantages:

• Serial 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 condensate may seem like a minus, but this is an indicator of the high efficiency of the boiler, and there is effective ways its reduction;
• Energy dependence. Undoubtedly a minus, but easily corrected, when solving it the house always becomes warm, regardless of whether there is electricity or not.

You can buy Nedelka boilers here.

1. 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.