TOP-9 of the best long-burning solid fuel boilers with a water circuit: rating of 2020-2021, technical characteristics and distinctive features of devices

A long-burning heating boiler is intended for heating residential premises for a long time without adding fuel, as well as obtaining hot water for the needs of residents.

Most of these devices are capable of operating on a single fill of solid fuel for about 12 hours.

Some models can keep warm for up to several days.

The choice of such equipment is huge, it is important to be able to distinguish an efficient high quality boiler from less functional devices.

Distinctive features

The long-burning double-circuit solid fuel boiler is a modernized version of the classic heating equipment.

In it, among other things, there is also a built-in heat exchanger, which provides the dwelling with a full-fledged hot water supply.

The design of the two-contour model includes the following elements:

Frame - can be produced from sheet steel or cast iron. The thickness of the metal is 4 to 6 mm.
Firebox chamber... Usually made from the same material as the body of the instrument.
Grate type... It is located inside the combustion chamber, the material is cast iron. Enriches the fuel with the oxygen necessary to maintain combustion.
Ash pan... Accumulates solid waste generated during combustion.
Chimney - removes combustion products outside the room.
"Water jacket"... Most often, it is built into the boiler body and filled with water, which receives heat from the walls, after which it enters the heating system.
Additional heat exchanger coil - distinguishes double-circuit models from single-circuit ones. It is built into the water jacket of heating equipment to provide hot water supply to the house.

The main disadvantage of this design is the low degree of performance.... Therefore, models made of cast iron are more popular, since they cool down longer.

Types of devices

According to the method of fuel combustion, long-burning double-circuit boilers can be subdivided into:

Pyrolysis... Equipped with two combustion chambers. In one of them, the process of smoldering and gas evolution for pyrolysis occurs, in the other, the resulting gas is mixed with oxygen and burned. Equipment of this type is characterized by high environmental friendliness - a minimum amount of harmful substances is released into the atmosphere. The combustion process produces little soot. If the boiler is equipped with automation, it will also be possible to adjust the power.
With an upper combustion chamber... These boilers are very easy to maintain. The number of automatics for their stable operation needs a minimum, it is possible to operate in an autonomous mode without electricity. There are also disadvantages - a lot of ash is formed during operation, there is a list of requirements for the types of fuel. For example, small wood chips or sawdust are not suitable for kindling.
Pellet... For kindling such equipment, special pellets or compressed fuel briquettes are used. Such boilers are environmentally friendly, economical and efficient, and have a long service life. One of the main disadvantages is the high price of the boiler and the special conditions that will have to be maintained for storing fuel. The room must be dry, high air humidity will deteriorate the pellets.

Advantages and disadvantages

Dignity:

high level of environmental safety;
increased heat transfer capabilities, which make up 90 percent of the generated heat energy;
the equipment is easy to install and maintain;
for kindling, you can use various types of solid fuels, including inexpensive ones;
the device can be used for both heating and hot water supply;
compact boiler dimensions;
there is no need for constant and frequent loading of raw materials to maintain combustion;
the equipment can operate in an autonomous mode without the constant presence of a person.

disadvantages:

raw materials used for kindling in long-burning boilers must meet certain quality and humidity requirements;
it is important to strictly follow the safety rules at any stage of work, whether it be transportation and storage of fuel, its combustion, disposal of waste from the boiler;
a significant level of labor costs when loading raw materials in non-automated boilers;
a high level of cost of such a unit in comparison with conventional boilers;
automated equipment depends on constant access to the power grid;
there must be sufficient free space for storing starting materials.

How to choose and what to look for?

The most important indicators when choosing solid fuel boilers for long burning with a built-in water circuit are:

The availability of the required fuel.
The power level of the device - depends on the area of the heated rooms and the required temperature regime of the coolant.
The type of draft generated inside the combustion chamber. It can be forced or natural. This parameter affects the possibility of placement in a particular room and the level of boiler performance.
Efficiency. It will depend on the type of fuel used, design features and additional equipment used (presence or absence of an exhaust hood, automation of fuel supply, etc.).
The heat exchanger material - usually cast iron or steel - affects the reliability of the device and the characteristics of the heating technology.
The type of location of the water jacket is important in order to correctly determine the installation location of the boiler in terms of fire safety rules.
The weight of the unit is an important factor in determining the base where the boiler will be located. It must be strong enough and not subject to deformation.
The method of fuel loading and the dimensions of the combustion chamber are important for determining the cycle of use of the unit and the possibility of setting up its automated maintenance.
The design features of the ash pan and its accessibility will affect the convenience of performing maintenance and preventive maintenance work on the boiler.
Cost Level - Depends on a combination of the factors listed above and the OEM's brand reputation.

Popular manufacturing companies

Heating equipment is always in high demand, which is why most of the technically developed world countries are engaged in the production of such units.

The following brands are best known from foreign manufacturers.:

Stropuva - manufactures long-burning boilers operating on solid fuels, chimneys and water heating systems, as well as shut-off and control valves (Lithuania).
Buderus - German specialist in heating technology.
WATTEK - a Czech company dealing with a wide range of issues - design, production, installation and maintenance of heating equipment.
ACV - a Belgian manufacturer of equipment for heating and hot water supply for domestic and industrial use.
Wirbel Is a company from Austria that manufactures various types of heating boilers, both solid fuel and electric.

Among Russian companies that produce long-burning boilers, the following manufacturers are popular among users:

NMK, full name - Novosibirsk metalworking company, is engaged in the production of various products, including solid fuel boilers of the Magnum series.
ZOTA... The production is located in Krasnoyarsk and provides the production of equipment for plumbing, heating units, including various types of boilers.
LLC TK "TeploGarant" - a company from Kostroma that manufactures boilers for domestic and industrial use and various components for them.

Rating of TOP-9 best models

In this rating, we have collected the best models for you in terms of price, quality and reliability.

The best solid fuel boilers for long burning with a water circuit

Stropuva Mini S8 8 kW

Solid fuel heating boiler. able to heat a residential or industrial premises with an area of up to 80 m2.

It is efficient and fully prepared for intensive operating conditions, including year-round use. A separate advantage is independence from electricity. The boiler can work with different types of solid fuels - coal, wood, pellets.

Differs in compact size... Fuel loading is simplified by the vertical arrangement of the firebox door. The ash pan is designed so that cleaning can be done only a couple of times a month.

The special combustion technology used in this model allows for long-term fuel combustion with high efficiency..

One tab of raw materials will provide you with warmth for at least a day. Duration of pellet burning is up to 48 hours, depending on external conditions and fuel quality.

Specifications:

power - 8 kW;
heated area - up to 80m2;
purpose - heating;
boiler volume - 40l;
combustion chamber type - open;
weight - 145kg;
dimensions - 55.5 * 136.5 × 55.5 cm.

Dignity:

high efficiency - up to 90%;
security;
reliable construction;
built-in thermometer.

disadvantages:

significant weight;
the door is difficult to clean due to the rough surface.

ZOTA Topol-22VK 22 kW

In this model, the configuration of the heat exchanger was successfully changed and water-filled grates were used. The body of the device is reliably insulated.

It has 2 combustion chambers, due to which both horizontal and vertical fuel loading is possible. The chamber doors are securely locked.

The boiler combines a relatively low cost with a high efficiency of the device..

There is a separate door that allows ash removal even while the appliance is in operation. One load of fuel will provide you with heat for 10-12 hours.

Additionally, you can install an external control panel to block the heating element, automate the combustion process.

Specifications:

power - 22 kW;
Efficiency - 70%;
non-volatile;
heated area - up to 200m2;
purpose - heating;
weight - 128kg;
dimensions - 90.5 * 47 * 87 cm.

Dignity:

can heat a large area;
easy to operate and maintain;
vertical and horizontal loading.

disadvantages:

low efficiency.

ZOTA Topol-16VK 16 kW

Another representative of the line of boilers with a water-filled grate, which guarantees an increase in the heat transfer of the device.

Its tube is triangular in shape to eliminate blockages and increase service life. The boiler can consume pellets, wood or coal as fuel.

The boiler is convenient to operate, thanks to the significant dimensions of the furnace and two ways of filling fuel - it is convenient to load coal from above, and firewood - into the skewer door.

The low cost is favorably combined with the efficiency of space heating.

Specifications:

power - 16 kW;
Efficiency - 70%;
heated area - up to 160m2;
purpose - heating;
weight - 108kg;
dimensions - 80.5 * 44 * 87 cm.

Dignity:

affordable price in its segment;
efficiency;
ease of use and cleaning.

disadvantages:

small efficiency.

ZOTA Topol-32VK 32 kW

The boiler, operating on various types of solid fuels, has a high level of performance, which makes it possible to make the heating system of the house of high quality and stable.

The equipment is considered to be very practical, since it can be converted to natural gas consumption.

The body of the equipment has good thermal insulation, which allows it to be installed in any convenient place.

The efficiency of the device is quite high, given the low price among analogs... Single loading of fuel allows you to maintain heat in the heating system for up to 12 hours.

Specifications:

power - 32 kW;
Efficiency - 70%;
non-volatile;
heated area - up to 320m2;
purpose - heating;
weight - 143kg;
dimensions - 87 * 44 * 100.5 cm.

Dignity:

versatility;
ease of management and cleaning;
precise temperature control.

disadvantages:

Stropuva S30 30 kW

Solid fuel heating boiler for installation in residential and commercial premises. Cost effective, ready for seasonal or year round use.

Does not depend on electricity, can operate on different types of solid fuels, has a high efficiency.

Compact and does not require a separate room for installation, has a certificate of environmental safety... Duration of burning firewood - up to 30 hours, pellets - up to 2 days. No power supply required.

Specifications:

power - 30 kW;
Efficiency - 85%;
heated area - up to 300m2;
purpose - heating;
weight - 143kg;
dimensions - 87 * 44 * 100.5 cm.

Dignity:

high efficiency;
security;
quality and long service life.

disadvantages:

high price.

Stropuva S40 40 kW

Solid fuel boiler for long burning with one circuit to provide heating of premises up to 400 m2. fuel can be firewood or wood briquettes.

Has an open combustion chamber, is installed floor.

Specifications:

power - 40 kW;
Efficiency - 85%;
heated area - up to 400m2;
purpose - heating;
weight - 143kg;
dimensions - 87 * 44 * 100.5 cm.

Dignity:

reliability;
attractive design;
ease of maintenance.

disadvantages:

high price.

TEPLOV Universal TA-40 40 kW

A long-burning water heating and heating boiler can heat residential and industrial premises and provide them with hot water.

Suitable fuels are briquettes, wood and coal.

Choose between automated or non-volatile device option.

In the first case, you will receive reliable protection against overheating, freezing of fluid in the system, the ability to adjust the temperature level for day and night mode.

Specifications:

power - 40 kW;
Efficiency - 82%;
heated area - up to 400m2;
purpose - heating and hot water supply;
weight - 390kg;
dimensions - 147 * 48 * 77 cm.

Dignity:

fuel versatility;
heating and hot water;
the possibility of automation.

disadvantages:

large dimensions and significant weight of the installation.

SAS UWT 14 14 kW

The solid fuel boiler is made of steel and insulated with mineral wool to reduce heat loss. It can be installed as part of closed or open systems.

Equipped with an automatic control system.

It is possible to connect a hot water boiler.

The preferred fuel is coal, but wood-burning is also possible.

Specifications:

power - 14 kW;
Efficiency - 83.5%;
heated area - up to 120m2;
purpose - heating;
weight - 310kg;
dimensions - 54 * 141 * 101 cm.

Dignity:

process automation;
high level of efficiency;
reliability and high build quality.

disadvantages:

high price.

TRAYAN TPG-15 15 kW

The boiler is equipped with one circuit and is intended for use in a central heating system with forced or natural circulation.

Connection of a hot water boiler is possible.

The unit differs from analogues in a low price while maintaining high characteristics.

Fuel can be wood, peat or fuel briquettes.

Specifications:

power - 15 kW;
Efficiency - 82%;
heated area - up to 130m2;
purpose - heating;
weight - 270kg;
dimensions - 72 * 73 * 160 cm.