TOP 20 best solid fuel boilers: rating 2020-2021 and how to choose the best model

Types and brief description

The devices differ in several features that you should pay attention to before purchasing.

Some boilers are not suitable for the type of power supply, others for the design.

Type of fuel

The heat source for solid fuel appliances is most often coal, wood or peat.

Fuel must be added every 4-8 hours, excluding long-burning models; adding firewood depends on the power, combustion mode and area to be heated.

Some devices are equipped with an additional thermometer, an auto-ignition system and a control panel.

Principle of fuel combustion

Pyrolysis - the basis of the device is the generation of heat by combustion of gas. Gas is extracted from wood by dry distillation from 600 to 800 degrees Celsius.

Water is heated by burning gas, which is produced by pyrolysis . This type of boiler has an increased efficiency of up to 91%. When operating such models, there is practically no emission of ash and soot.

Traditional - use heat from the combustion of filling material . Modern models use the top combustion technique, which ensures that each fuel burns alternately. Because of this, the amount of ash is reduced and efficiency increases to 80%.

Energy dependence

Volatile devices are devices that require power from the mains to regulate heating, temperature, ventilation and pump adjustment.

Non-volatile - these boilers do not require additional power sources . All control of temperature control, smoke removal, and water circulation is carried out mechanically.

Solid fuel boilers by type of fuel

Based on the type of fuel, solid fuel boilers are divided into:

Boilers using NOT granulated fuel;
Boilers using pellets (granulated fuel);
Universal boilers.

Boilers using non-pelletized solid fuel

Non-granular fuels include coal, peat, and wood. This type of fuel is loaded into the firebox manually at intervals of 4-8 hours. The frequency of fuel addition depends on the required temperature, fuel volume and combustion mode.

Pellet solid fuel boilers

Pellet fuel is granules that are combustible material. Granules (pellet) are made from wood waste (shavings, sawdust). Solid fuel pellet boilers are long-burning boilers, as they are equipped with pellet supply systems, automatic ignition and heating temperature control.

Universal solid fuel boiler

As the name suggests, universal solid fuel boilers operate on any solid fuel. These boilers are equipped with mechanical and electronic ignition systems and combustion intensity control. All this allows you to fully automate the home heating process.

Also, the operation of solid fuel boilers is based on different principles of fuel combustion.

How to choose and what to pay attention to

Type of fuel

If the client prefers coal when choosing fuel, then it is better to choose a boiler and steel . If firewood is used as fuel, then a cast iron model would be the best choice.

Power

This criterion determines how much area the device will be able to heat and how often it is necessary to add fuel.

NOTE!

For a large room and a two-story private house, a boiler with a capacity of 20-36 kW is suitable.

And for a small country house 14 kW is enough.

Weight and cost

The large weight and dimensions will cause inconvenience if the client does not have a special place to place the boiler.

Heavy weight also means higher installation and shipping costs . In addition, heavy boilers are much more expensive than lighter models.

Economical

The coefficient of a cast iron boiler is lower than that of a steel boiler. But a cast iron boiler takes longer to cool, thereby retaining heat for a longer time.

The time interval between fuel additions depends on the combustion time . Thus, economical cast iron models can keep warm all night.

Durability of the design

The default lifespan of equipment is about 10 years. But this depends on the careful handling of the owner and the quality of the materials from which the boiler is made.

If you choose a model with good materials, reliable assembly and properly care for the heating equipment, the device will last longer.

Safety

The equipment may become hot, creating a risk of burns.

Modern devices are equipped with a special layer of protection, and the walls of such devices do not heat up . In addition, protection is used on the door handles and a control panel is connected.

Popular manufacturing companies

There are several reputable manufacturers that are preferred by clients:

Stropuva - a Lithuanian brand that provides longer burning from one load of firewood. It has an interesting barrel-shaped design, which makes it possible to install the device in a small room. Lithuanian devices are quite expensive, but they are durable.
Zota - for those who like to use firewood as fuel, the Russian brand is suitable. The devices are small in size and low in power. But they are also reliably constructed and affordable.
Burzhuy-K is a Russian company that produces boilers independent of power supply, operating on pyrolysis. The cost of boilers varies from 40,000 to 76,000 rubles. The boilers have high power and retain heat for a long time.

The best classic solid fuel boilers

Kentatsu ELEGANT-03 17 kW

Stylish brown steel solid fuel boiler. Power 17 kW, suitable for heating a room of 170 sq.m.

Quite a reliable design from a Japanese manufacturer, provides uniform heating of the room.

Copes well with harsh winters.

Characteristics:

appliance type - solid fuel boiler;
contours - single-circuit;
power - 17 kW;
placement - floor;
energy independence - yes;
control - mechanical;
combustion chamber - open;
body material - cast iron;
fuel - coal, firewood;
pressure - 4 bar;
dimensions - 450*947*609 mm;
boiler weight - 166 kg;
price - 35950 rubles.

Advantages:

uniform heating;
cast iron material;
reliable design;
easy controls;
spacious firebox;
interesting design.

Flaws:

heavy weight;
high price;
no additional features.

Protherm Beaver 50 DLO 39 kW

Solid fuel boiler made of cast iron material 39 kW. The heat is enough to heat a private home. It has a spacious firebox for wood and coal.

Unfortunately, it does not work on other types of fuel - natural gas or pellets.

For the convenience of the client, a thermometer and pressure gauge are built in.

Characteristics:

unit - heating boiler;
type of fuel - wood, coal;
number of circuits - one;
power - 39 kW;
energy independence - yes;
installation - floor;
control - mechanics;
combustion chamber - open;
body material - cast iron;
Efficiency - 90.2%;
pressure - 4 bar;
thermometer - yes;
dimensions - 440*935*1040 mm;
boiler weight - 380 kg;
92717 rubles.

Advantages:

quality materials;
cast iron doors;
high power;
8 heat exchanger sections;
uniform heating.

Flaws:

heavy weight;
high price;
bulky;
the bottom of the boiler heats up;
It is possible to use only wood and coal.

Teplodar Cooper Praktik 8

Steel solid fuel boiler from the Russian manufacturer Teplodar, with a capacity of 8 kW. Heats a small room of 80 square meters.

Suitable for a country house or garage.

Characteristics:

unit type - solid fuel boiler;
contours - single-circuit;
power - 8 kW;
area - 80 sq.m;
installation - floor;
energy independence - yes;
control - mechanical;
material - steel;
Heating element - preinstalled;
fuel - firewood, coal, peat briquettes;
functions - thermometer;
connection of external control - yes;
boiler weight - 60 kg;
cost - 12,460 rubles.

Advantages:

affordable price;
uniform heat;
various fuels;
compact size and light weight;
easy control.

Flaws:

the power is not enough to heat a two-story house;
The housing may become hot.

Teplodar Cooper Praktik 14 14

Classic solid fuel boiler from the Teplodar company with a capacity of 14 kW. Suitable for heating a country house up to 140 square meters.

Installed on the floor.

Characteristics:

appliance - solid fuel boiler;
contours - single-circuit;
thermal power - 14 kW;
heating area - 140 sq.m.;
installation - floor;
control - mechanics;
non-volatile - yes;
material - steel;
Heating element - preinstalled;
fuel - coal, peat briquettes, firewood;
thermometer - yes;
dimensions - 420*655*630 mm;
boiler weight - 68 kg;
cost - 15,745 rubles.

Advantages:

low price;
compact dimensions;
a light weight;
quality materials;
good heating of the room;
spacious firebox for storing fuel.

Flaws:

firewood burns quickly;
before going to bed you need to add fuel.

ZOTA Box 8 8 kW

Solid fuel heating unit with a power of only 8 kW. Suitable for a small room - a garage, country house or workshop.

The small appliance is equipped with a hob on which you can heat water or food.

Characteristics:

boiler type - solid fuel;
contours - single-circuit;
power - 8 kW;
placement - floor;
energy independence - yes;
control - mechanics;
combustion chamber - open;
Efficiency - 70%;
material - steel;
hob - yes;
Heating element - optional;
fuel - coal and firewood;
thermometer - yes;
dimensions - 380*460*630 mm;
boiler weight - 71 kg;
cost - 16,100 rubles.

Advantages:

compactness;
low cost;
presence of a hob;
quickly warms up a small room;
economical fuel consumption.

Flaws:

low power;
at night it is necessary to throw it up.

Lemax Forward-20

A stylish solid fuel device with a power of 20 kW for heating a room of 200 m2. It features a spacious firebox located on the top panel.

Can be connected to a water heating system. Heats evenly and maintains temperature well.

Characteristics:

appliance - heating boiler;
fuel - solid: firewood, coal, coke;
contours - single-circuit;
power - 20 kW;
non-volatile - yes;
combustion chamber - open;
Efficiency - 75%;
control - mechanical;
installation - floor;
material - steel;
thermometer - yes;
boiler weight - 78 kg;
fuel loading - vertical;
cost - 19970 rubles.

Advantages:

works on any solid fuel;
quality steel;
convenient top fuel loading;
compact dimensions;
environmental friendliness.

Flaws:

firewood burns quickly;
at night it is necessary to throw it up.

ZOTA Topol M 14 14 kW

A bright solid fuel unit with a power of 14 kW for heating a room with a maximum area of 140 m2. It is possible to install a heating element to maintain the room temperature.

Characteristics:

unit - heating boiler;
contours - single-circuit;
power - 14 kW;
heated area - 140 m2;
placement - floor;
energy independence - yes;
control - mechanics;
combustion chamber - open;
Heating element - optional;
fuel - coal, firewood;
thermometer - yes;
boiler weight - 113 kg;
cost - 14391 rubles.

Advantages:

compact dimensions;
sufficient power;
the ability to connect a heating element;
holds heat well;
acceptable cost.

Flaws:

firewood burns quickly;
the walls heat up;
no additional features.

Protherm Beaver 20 DLO 19 kW

A high-quality unit made of cast iron material with a power of 19 kW. Suitable for heating a private house with an area of 190 m2.

The heat exchanger includes 4 sections.

Characteristics:

type of device - solid fuel boiler;
number of circuits - one;
power - 19 kW;
area - 190 square meters;
placement - floor;
energy independence - yes;
control - mechanical;
material - cast iron;
fuel - coal, firewood;
thermometer - yes;
dimensions - 440*935*640 mm;
boiler weight - 230 kg;
cost - 52,000 rubles.

Advantages:

simple controls;
reliable design;
large ash pan;
straight seams;
good painting;

Flaws:

high price;
Not very roomy firebox.

Lemax Forward-12.5 13 kW

An almost silent solid fuel unit with a power of 13 kW for heating an area of 130 m2. Compact dimensions allow the device to be installed in a small room.

The power is enough to heat a country house.

Characteristics:

device - solid fuel;
number of circuits - single-circuit;
power - 13 kW;
placement - floor;
energy independence - yes;
control - mechanics;
combustion chamber - open;
Efficiency - 75%;
material - steel;
thermometer - yes;
fuel loading - vertical;
boiler weight - 70 kg;
cost - 14960 rubles.

Advantages:

fast heating;
compactness;
reliable assembly;
works silently;
low cost;
decent power.

Flaws:

when laying coal there is a lot of dirt around;
inconvenient to clean.

Lemax Forward-16 17 kW

A variation of the previous model, but with increased power to 17 kW. It consumes fuel quite economically. Warms up a private home well.

Features reliable build quality.

It works silently.

Characteristics:

unit - boiler;
fuel - coal, firewood, coke;
number of circuits - one;
power - 17 kW;
area - 170 m2;
installation - floor;
non-volatile - yes;
control - mechanics;
combustion chamber - open;
Efficiency - 75%;
thermometer - yes;
boiler weight - 73 kg;
price - 16,500 rubles.

Advantages:

low noise level;
uses fuel economically;
environmentally friendly;
safe;
vertical loading of firewood;
convenient use.

Flaws:

non-standard chimney diameter.

Ten best models of solid fuel boilers in 2021

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

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

You can buy Nedelka boilers here.

Advantages:

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

Flaws:

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

Boilers Nedelka - company presentation

ZOTA Pellet 100A

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

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

Advantages:

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

Flaws:

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

Pellet boiler Zota ZOTA Pellet 100A

ACV TKAN 100

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

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

Advantages:

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

Flaws:

High price.

Long burning boiler ACV TKAN 100

ZOTA Topol M 20

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

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

Advantages:

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

Flaws:

Heavy weight.

ZOTA Topol M 20

Teplodar Cooper Praktik 8

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

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

Advantages:

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

Flaws:

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

Teplodar Cooper Praktik 8

ZOTA Yenisei 12

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

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

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

Flaws:

Servicing the device is somewhat problematic.

ZOTA Yenisei 12

EVAN WARMOS TT-18

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

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

Advantages:

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

Flaws:

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

EVAN WARMOS TT-18

Lemax Forward-16

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

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

Advantages:

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

Flaws:

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

Solid fuel boiler Lemax Forward-16

Kentatsu ELEGANT-03

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

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

Advantages:

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

Flaws:

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

Kentatsu ELEGANT-03

2. Teplodar Cooper OK 15

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

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

Advantages:

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

Flaws:

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

Cooper boiler. Reviews.

Teplodar Kupper OK 15

Stropuva Mini S8

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

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

Advantages:

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

Flaws:

Except for the rather high cost not found.

solid fuel boiler Stropuva Mini S8

The best long-burning solid fuel boilers

Stropuva Mini S8 8 kW

Bright solid fuel boiler with a safety valve, power 8 kW. Suitable for heating a room of 80 m2. The fuel burns for up to twenty hours, the temperature is enough for the whole night.

Characteristics:

type of device - solid fuel boiler;
type of combustion - long;
contours - single-circuit;
power - 8 kW;
area - 80 m2;
placement - floor;
energy independence - yes;
control - mechanics;
combustion chamber - open;
fuel - firewood, wood briquettes;
safety valve - yes;
thermometer - yes;
boiler weight - 145 kg;
price - 53,000 rubles.

Advantages:

compactness;
long burning;
ease of use;
reliable handles;
does not require power supply;
robust design.

Flaws:

high price;
heavy weight;
it is difficult to wash off carbon deposits from the cladding;
Not very convenient for loading firewood.

ZOTA Topol-22VK 22 kW

A high-quality solid fuel device with a power of 22 kW, which is enough to heat an area of 220 m2. Convenient loading consists of two sections for storing firewood.

Characteristics:

appliance - solid fuel boiler;
contours - single-circuit;
power - 22 kW;
placement - floor;
control - without control panel;
fuel - coal, coal briquettes, firewood, wood briquettes;
thermometer - yes;
boiler weight - 128 kg;
price - 36,860 rubles.

Advantages:

various types of fuel;
long burning;
economical consumption;
convenient operation;
reliable design.

Flaws:

heavy weight;
no control panel.

ZOTA Topol-16VK 16 kW

A decent model of a solid fuel boiler with two sections for storing fuel. Designed for heating a small private house or workshop of 160 m2.

Ensures long burning of wood or coal.

Options:

unit - heating boiler;
fuel - coal, firewood, coal and wood briquettes;
power - 16 kW;
placement - floor;
control - without control panel;
Efficiency - 75%;
thermometer - yes;
boiler weight - 108 kg;
cost - 30,100 rubles.

Advantages:

heats up quickly;
gives uniform heat;
quality materials;
long burning;
possibility of laying briquettes;
easy control.

Flaws:

high price;
heavy weight;
no control panel.

ZOTA Topol-32VK 32 kW

Reliable solid fuel unit with a power of up to 32 kW. Capable of heating an area of 320 square meters. It is possible to install an additional heating element and connect external control.

Excellent for a country house, ensures long burning of fuel.

Characteristics:

type of device - solid fuel boiler;
number of circuits - one;
power - 32 kW;
area - 320 m2;
installation - floor;
energy independence - yes;
control - mechanics;
Efficiency - 75%;
fuel - coal, coal briquettes, wood briquettes, firewood;
thermometer - yes;
connection of external control - yes;
boiler weight - 143 kg;
price - 40,370 rubles.

Advantages:

fast heating;
reliable assembly;
simple controls;
opportunity to purchase a burner;
economical fuel consumption;
stylish design.

Flaws:

heavy weight;
high price.

Stropuva S30 30 kW

A full-fledged solid fuel boiler with a power of 30 kW for heating a room of 300 m2. Equipped with thermometer and safety valve.

Made of high quality steel, the material does not become red-hot when the boiler heats up.

The only boiler that continues burning for up to 31 hours.

Characteristics:

appliance - solid fuel boiler;
power - 30 kW;
area - 300 sq.m.;
placement - floor;
control - mechanical;
contours - one;
non-volatile - yes;
combustion chamber - open;
Efficiency - 85%;
material - steel;
fuel - firewood, wood briquettes;
thermometer - yes;
safety valve - yes;
boiler weight - 257;
price - 89,800 rubles.

Advantages:

long burning;
uniform heat;
fast heating;
quality materials;
presence of a thermometer;
economical fuel consumption.

Flaws:

high price;
heavy weight;
bulky.

Types of solid fuel boilers

Today, domestic consumers have access to a large number of models of solid fuel boilers for heating, which can be represented in the following groups:

classic solid fuel boilers;
long-burning solid fuel boilers;
pellet solid fuel boilers.

Traditional solid fuel boilers

The classic solid fuel heating boiler fully lives up to its name, since even during its existence it has remained largely unchanged.
If you look at the boilers that were used by our ancestors, these devices are in many ways similar to modern models. True, it must be admitted that these devices have acquired a slightly different appearance and design. But all these changes were only beneficial, since modern models have increased efficiency and ease of use.

The following key elements can be distinguished in the design of a solid fuel boiler:

The combustion chamber;
Heat exchanger;
Automation, which guarantees that the temperature is maintained at the required level.

For the manufacture of elements such as the combustion chamber and heat exchanger, steel or cast iron is used. However, none of these materials has serious advantages over the other. It is imperative to take into account additional parameters: quality of material, thickness, design.

The use of steel as a material for the combustion chamber and heat exchanger makes the product significantly lighter. At the same time, such devices cope better with mechanical stress during transportation and loading and unloading, in which they are superior to their cast iron counterparts. But a steel heat exchanger also has disadvantages . If its operation is carried out in violation of the rules, this will lead to its corrosion. Naturally, this situation rarely arises, since there is nothing difficult in preventing the temperature in the boiler from falling below the “dew point” temperature.

Among the advantages that cast iron has, mention should be made of its high durability. In this parameter, it is twice as good as steel. In addition, this material is better protected from corrosion.

Long-burning solid fuel boilers

In recent years, long-burning solid fuel boilers for heating a private home have gained great popularity. Their important feature is the ability to retain heat for a long time due to automatic power adjustment.
The most common types of boilers are:

pyrolysis (gas generator) boilers;
boilers with top-down combustion.

Quite often, devices that use a pyrolysis combustion system are used. They are distinguished by the fact that heat is generated by burning gas generated during the combustion of solid fuel. This operating mode allows the fuel to burn longer than usual and ensures more efficient operation of the installation.

These devices can be used for heating small industrial facilities , cottages and country houses. At the same time, they can successfully serve as an independent heat source and be used in conjunction with other heating devices.

Pellet boilers

If a private house does not have a connection to the gas main, then among the possible solutions to the heating problem, its owner can choose pellet boilers. These devices are preferable to electric and liquid fuel devices, since the cost of pellets is lower than diesel fuel and electricity and at the same time they can be easily switched to automatic operation. The operation of these devices is less expensive, since one load of fuel is enough for 5-7 days of operation of such a boiler.

The design of these devices is represented by the following components: a boiler, a bunker and a system for supplying pellets from the bunker to the boiler.

Pellet boilers can be classified into two types:

with built-in burners (volcano-type retort pellet burners);
with mounted (pressurized) burners.

Pellet boilers with a mounted (pressurized) burner are distinguished by the fact that, if necessary, they can be converted to another type of fuel. To do this, you just need to change the burner.

Boilers that use a retort built-in burner do not have this feature, which limits their use.

Let's take a closer look at the process of feeding pellets from the bunker to the boiler. An external auger is used to load fuel into the burner hopper. The operation of the latter is controlled by a photosensor with which the burner is equipped. It is he who monitors how much the bunker is loaded with granules. When there is no free space left in the bunker for fuel, the external auger turns off. At this stage, the internal auger comes into operation, with the help of which the granules enter the combustion grate. There is an electric coil here that ignites the granules. Air access to the combustion zone is provided by a fan.

The best pyrolysis boilers

TRAYAN T15 15 kW

Model of a pyrolysis boiler from a Russian manufacturer using solid fuel. Made of high quality steel, the material does not heat up and is easier to clean than cast iron models.

After prolonged use, the paint may peel off.

Options:

boiler type - solid fuel;
type - pyrolysis;
thermal power - 15 kW;
heated area - 160 m2;
installation - floor;
energy independence - yes;
control - mechanical;
Efficiency - 85%;
fuel - firewood, coal;
boiler weight - 230 kg;
pressure - 95%;
price - 44370 rubles.

Advantages:

low noise level;
uniform heating of the room;
heats up quickly;
reliable assembly;
quality material;
good paint job.

Flaws:

high price;
heavy weight.

Bourgeois-K MODERN-12 12 kW

Solid fuel boiler of rich bright color, made of high quality steel. A power of 12 kW is enough to heat a room of 120 m2.

Works on wood, coal, peat briquettes.

Suitable for a country house or workshop.

Options:

type - boiler;
fuel - firewood, coal, wood briquettes, peat;
number of circuits - single-circuit;
power - 12 kW;
heated area - 120 m2;
combustion chamber - open;
Efficiency - 92%;
control - mechanical;
installation - floor;
thermometer, pressure gauge - yes;
boiler weight - 220 kg;
dimensions - 400*1070*780 mm;
cost - 59,900 rubles.

Advantages:

ability to use a variety of fuels;
high efficiency;
presence of a thermometer;
stylish design;
adequately warms the room;

Flaws:

overcharge;
heavy weight;
inconvenient ash pit.

Bourgeois-K MODERN-24 24 kW

A solid fuel boiler from Russian manufacturers with a power of 24 kW, which is enough to heat a private country house with an area of 250 m2.

The device is installed on the floor and runs on solid fuel.

Characteristics:

type - solid fuel boiler;
number of circuits - single-circuit;
thermal power - 24 kW№
heating area - 250 m2;
installation - floor;
non-volatile - yes;
control - mechanics;
fuel - coal, firewood, pellets, wood briquettes, peat;
maximum pressure - 4.5 bar;
thermometer - yes;
pressure gauge - yes;
dimensions - 500*1180*800 mm;
boiler weight - 310 kg;
cost - 76,050 rubles.

Advantages:

high power;
convenient control;
The ash pan is easy to clean;
quality materials;
reliable assembly.

Flaws:

high price;
heavy weight;
bulky.

TRAYAN T20 20 kW

Solid fuel boiler with a capacity of 20 kW for heating private houses, workshops and other premises. It is heated with coal and wood.

Installation is carried out on the floor, on special legs.

Thick steel ensures the durability of the device.

Characteristics:

device type - solid fuel boiler;
contours - one;
maximum power - 20 kW;
area - 220 sq.m.;
installation - floor;
energy independence - yes;
control - mechanics;
combustion chamber - open;
fuel - firewood, coal;
functions - thermometer, pressure gauge;
dimensions - 460*980*760 mm;
boiler weight - 260 kg;
price - 51990 rubles.

Advantages:

fast heating;
long burning of fuel;
the manufacturer promptly responds to customer questions;
ease of use;
durable materials.

Flaws:

high price;
heavy weight;
bulky;
small firebox.

How to choose solid fuel boilers

Most often, steel or cast iron is used .
This choice is due to their advantages, such as the ability to cope with high temperatures, immunity to deformation and burnout. To make steel boilers for heating a private home, special heat-resistant grades are used. An important parameter that must be taken into account when choosing them is the wall thickness. A value of at least 4 mm is considered optimal. At the same time, the thermal insulation that is laid between the heat exchanger and the casing also deserves attention. Most often, mineral wool is used as an insulator. The production of cast iron products operating on solid fuels is carried out using casting technology. These products have a fairly long service life , which can reach 25 years. However, the most heat is generated when using steel models for heating. In addition to their low weight, they are also easy to transport. Their important advantage is their immunity to corrosion. At the same time, their operation can be affected by sudden temperature fluctuations. The price of such devices may vary. This parameter is influenced by the material used for their manufacture, design and power.