Choose a gas or wood burning boiler dvh. Solid fuel boilers: an overview of models and choosing the best

After the construction of a capital structure and the arrangement of its water supply, the next construction work is the organization of heating.

The system that heats the interior of the house is called a heating system, and consists of a boiler and heat-radiating elements.

The choice of energy carrier (, coal, firewood,) determines the type of boiler required for heating operation. A universal type of heating equipment is represented by boilers that combine the ability to work on several types of fuel.

The most common heaters of this type are combined gas-firewood boilers.

Universal boilers: combination of different types of fuel

Boilers for heating gas firewood combine the ability to work on two types of fuel: natural gas and (wood).

Each type of energy carrier has its own advantages that determine its choice in certain operating conditions.

A wood-burning stove makes it possible to organize autonomous heating that does not depend on the availability of a central supply and the cost of an energy carrier (as happens with gas).

The gas stove, in turn, allows you to operate the heating system without daily time spending and physical effort to carry, put them in the stove, ignite and heat the room. This fact explains the widespread distribution of gas heating in the private sector, the laying of gas central units and the installation of gas equipment in residential buildings.

A house equipped with only gas type of heating depends on the availability of a resource in the gas network, on its quality, composition, pressure inside the pipeline. The economic efficiency of gas heating is determined by the price of an energy carrier, which the owners of the house are not able to control. Rather, they have to accept, in fact, an increase in the price of payment for heat in their own home.

The desire to save money and (available) leads to the transfer of the gas boiler to the economical service mode, when a small outlet water temperature is maintained.

The main heating of the house in the evening is shifted to a wood-burning stove.

After the installation of gas equipment in many houses, coal-wood stoves were dismantled, and the new construction of a solid fuel stove requires investment and professional skills. Therefore, a combined design, gas-wood boilers, has become a popular type of heating a gasified house.

Combined boilers: operating advantages

As arguments for the use of combined boilers, there are factors that make it attractive to purchase a universal type of equipment.

Ability to reduce heating costs(if you use less expensive firewood instead of expensive gas).

You can provide yourself with wood fuel on your own, armed with a chainsaw and leaving the city in search of dry trees.

Semi-automated process. Automatic operation in gas mode allows you to wake up in a warm room in the morning and come home to a heated living space in the evening.

Modern design and portability. Unlike capital brick ovens, a metal boiler (if necessary) can be dismantled, rearranged in an adjacent corner or other room.

Gas-wood heating boilers allow the use of one heating boiler for two types of fuel.

As a rule, the gas source of heat is consumed at the time of day when automatic operation of the heating system is necessary: ​​at night, when everyone is sleeping, during the day, when family members go to work or study. Wood heating operates mainly in the evening and on weekends.

Most often, combined heating boilers provide for heating on solid fuel (wood) and the subsequent mode of maintaining the temperature on gas. The design of such boilers is equipped with only one combustion chamber, in which different fuels can be burned.

Combined gas-solid fuel boilers with two combustion chambers represent a complex consisting of two furnaces.

Such a boiler is more expensive to manufacture and sell, but at the same time it guarantees the reliability of the heating system, operating with the main and reserve type of fuel. The design of such boilers provides a combustion chamber for solid fuels and gas burners.

For boilers, gas firewood is characterized by large sizes.

Requirements for boilers gas firewood

Heating boilers combined with gas and firewood in the heating system must perform not only the function of heating, their design must guarantee other performance characteristics, namely:

• efficiency (reduction of heating costs);
• efficiency and high efficiency;
• security;
• environmental friendliness (complete combustion of fuel, no emissions);
• serviceability;
• independence from the power grid (or the possibility of such a mode);
• independence from human presence, possible automation.

In various designs, these requirements are satisfied to a greater or lesser extent. For example, not all boilers provide for electrical independence.

Often, an electric exhaust fan is installed in gas equipment, which ensures the complete removal of combustion products from the combustion zone.

In high-quality boilers, automatic elements are duplicated by manual control elements (the fan has a manual damper), which allow the device to be operated in the absence of electricity.

Choosing a gas firewood boiler: what to look for?

The power of the combined boiler is determined by the size of the area to be heated.

For an approximate calculation of the required amount of heat, it is believed that in a harsh winter, 1 kW of heat is needed to heat 5 m 2. The number of kW that a working structure can produce is indicated in the technical data sheet. Various designs of boilers produce from 5 to 40 kW of heat per hour.

Gas-firewood boilers are combined designs that allow the use of both solid and gaseous fuels for heating.

The demand for these structures is formed by a combination of their characteristics, the ability to reduce heating costs, guaranteed to provide your home with energy and not spend all your free time on servicing the heating system.

"gas-solid fuel".

After carrying out all the work on capital construction and conducting water supply, the next thing to do is to take care of heating the house. A combination boiler can come to the rescue.

You can find out the price and buy heating equipment and related products from us. Write, call and come to one of the stores in your city. Delivery across all territory of the Russian Federation and the CIS countries.

The gas-solid fuel boiler is becoming more and more popular with property owners every year. Its main advantage is that it combines the possibility of using several types of fuel: gas, wood, pellets, coal, ...

Gas-solid fuel boiler Atem Zhytomyr-9

Accordingly, this type of equipment saves money well and allows you not to depend on a particular type of fuel and its presence or absence. If the main type of fuel runs out, the combined gas-solid fuel boiler will switch to the use of an auxiliary type of fuel.

Before purchasing a combi boiler "gas-solid fuel", you must consider the following:

1. Combined units with a capacity of less than 40 kW are mounted in any room. Those larger than 40 kW require a separate space (boiler room).
2. The boiler room will require an area of ​​at least 12 m² with a height of at least 2.2 m.
3. The floor and walls of the room must be lined with ceramic tiles or plaster, that is, with a material that does not burn.
4. The room should be equipped with ventilation, as well as windows facing the street. The size of the windows must be calculated according to the capacity of the boiler.
5. Where chimney floor slabs and roofing cake, fire-prevention cuts are installed, and the pipe is separated with a mineral sealant that does not burn.
6. To increase the traction force, a deflector and a spark extinguisher are attached to the chimney head.

If you decide to connect a gas-solid fuel boiler to gas on the main, you must remember that the first “start-up” is carried out in the presence of a Gas Service inspector. He must also put a mark in the boiler document on putting it into operation.

gas firewood

The advantage of universal gas-firewood heating boilers lies in autonomy: a smooth transition of the system to burning wood in the absence of gas. Also, if desired, you can connect the structure, because the necessary connections and pipes are attached to the boilers.

Such universal boilers "gas-firewood" can be single-circuit and double-circuit, so it will not be difficult to connect or heat water in a flowing way.

The disadvantages include the large dimensions of such units. Most often they require a separate room for installation, and imply complicated service. Typically, such boilers are produced only on the floor type.

Combined gas-firewood boilers for the home imply increased requirements. The rules and regulations for operation are described in PPB, SNiP and SP.

The combined gas-firewood boiler for a private house includes the following elements:

1. Furnace chamber. It is made from cast iron or steel. The boiler can be with one firebox or two (more convenient). In the double version, firewood is burned in the upper section, and firewood is installed in the lower section.
2. Contours of hot water supply and heating. They are produced by companies specifically for heating, or for heating to receive hot water (two-circuit). DHW heating in a flow way.

The universal gas-firewood heating boiler assumes savings. This can be verified by looking at the following table.

High-quality wood and gas equipment is produced in Russia: Zota MIX, Kupper PRO (Teplodar), Karakan (STEN), PARTNER (KOSTER), STS (Steel Solid Fuel Systems). As well as foreign companies: Austria and Germany ("Wirbel"), Finnish concern "Jaspi" and others.

It should be noted that in foreign analogues, defects in the assembly and are less likely to be noticed. They boast reliability and quality. However, the domestic manufacturer is constantly improving in accordance with the wishes of customers.

Prices for combined heating boilers "wood-gas" depend on the country of manufacture, on the brand's popularity. For example, the company model "PARTNER" ("BONfire") will cost an average of 23 thousand rubles. Much will depend on the configuration, power and other indicators. But "Jaspi" will pull on all 130 thousand rubles. The run is large, however, unlike the Finnish one, where everything is regulated by automation, in the Russian counterpart, all boiler settings will have to be done independently.

coal-gas

The universal gas-coal boiler is environmentally friendly and easy to maintain. However, when choosing this type of construction, you will have to constantly monitor the presence of solid fuel, because coal runs out quickly. If suddenly you come to the conclusion that "two in one" does not suit you, then you can always replace the burner - and the boiler will already work on natural gas.

Most often, a combined coal-gas boiler is allowed to be fired with firewood. For example, in the technical characteristics of the by-pass model "Berezka V" of the manufacturer "Atem", the paragraph "fuel" indicates "natural gas / coal" (see table). However, buyers use such a boiler for heating and firewood.

Gas-coal-firewood

The advantage of the gas-firewood-coal boiler is that it does not depend on electricity. This allows you to create autonomous heating systems. Fuel for such a unit is available in any locality and, moreover, at a low price. The wood-coal-gas boiler from the manufacturers listed in the table below is easy to service and has an attractive design.

Firewood-coal-pellets-gas

Currently, these units are offered by: the manufacturer of the universal boiler "Cooper" "gas-firewood-coal-pellets", the manufacturer "Raton" and others.

A large selection (pellets, firewood, coal, gas) gives such a boiler a great advantage. In the absence of one type of fuel, you can always switch to another type and stay warm.

gas pellets

A pellet-gas boiler is equipment that easily changes its operation from heating with one type of fuel to heating with another. This usually happens within 15 minutes.

It is also possible to replace the burner in the event of a conversion. Many models have a tubular electric heater available.

It is allowed to connect a balloon.

Efficiency pellet-gas boiler reaches 90%.

The unit has several combustion chambers. The kit includes two burners, as well as many regulating and locking devices. It has a high degree of security and automation. But despite this, a gas-pellet boiler, like any combined gas boiler, requires compliance with the norms of PPB, SNiP (some excerpts are described at the beginning of the article).

Do not forget to clean the boiler from time to time. During maintenance, it is necessary to remove accumulated wood dust, soot from the electric drive and moving elements.

What do you need to work on pellets?

To convert the boiler to fuel pellets, you need to install a pellet burner, which is connected to the fuel bunker. After all operations, the operation of the boiler is as follows:

• along the conveyor from the fuel bunker, the granules enter the burner;
• electric ignition occurs immediately by means of a piezoelectric element;
• a built-in fan is activated in the burner, which increases the pressure, and the combustion of the pellets occurs at a high temperature raised artificially.

Typically, gas-pellet boilers are made from cast iron, and due to their large dimensions and weight, the structure is placed on a concrete base.

What do you need to run on gas?

Pellet boilers with a gas burner are connected, first of all, to cylinders and. Such units are gaining popularity in the construction of houses and plots where natural gas is planned to be carried out soon.

To connect a gas burner, it is necessary, first, to close the unused furnace with an airtight hatch. Then, in a place specially designated for gas equipment, you need to install a burner fixture. After all, set the switch to gas consumption. Everything. Alteration took no more than 15 minutes of time.

Combined boiler Wirbel ECO-CK 20

Firewood-pellets-gas

If you are interested in the design of this type of heating, the table below describes the manufacturer of gas, solid fuel and pellet boilers, its most popular model and a brief description.

Thus, combined boilers for heating a house are an excellent option for obtaining not only heat, but also saving money. Since there is always a choice of fuel and its autonomous switching, in the absence of one specific type of fuel, your home will be heated at any time of the year. Combined boilers for solid fuel and gas are reliability, high performance and versatility.

Heating at home is one of the main factors that affects comfort. Today, several types of fuel are used to solve such problems, which makes it possible to choose the best version of the mechanism depending on the conditions.

The most popular of them are gas boilers, which are economical and reliable. You can learn more about the principle of operation of such structures on the website https://www.gazovyy-kotel.ua/.

Job evaluation

The popularity of solid fuel boilers is gradually increasing, as the price of gas varies and is not stable. But still, to say which device one should compare several of their characteristics:

1. Mounting. Installing a gas boiler is a little more complicated than a solid fuel one. But at the same time, the latter can be installed independently, without asking permission from special state organizations. Installation of gas boilers is carried out only by specialists who confirm its quality. This, in turn, requires additional costs.
2. Security. The operation of both systems can lead to various negative effects (fire). It should be noted that gas boilers are located in residential premises, while solid fuel structures are installed in separate rooms. This slightly reduces the risk of carbon monoxide poisoning during a carbon monoxide leak.

Comparing the characteristics

Gas and solid fuel boilers have their own advantages and disadvantages. When buying them, you should consider the following indicators:

• Price. The price of these designs is approximately equal. It all depends on the technical characteristics of the mechanisms.
• Power. Gas boilers can heat both several rooms and two or three houses. However, they do not require manual fuel supply. Solid fuel systems are also quite powerful and can safely heat a house. To keep the temperature at the same level, they must be periodically replenished with fuel. This is one of the shortcomings.
• Fuel. Gas boilers run on only one substance, while solid fuel structures can use wood, pellets, and in some cases garbage.
• Comfort. In this case, gas systems that do not need to be monitored have full advantage. Prevention of such boilers is carried out at least once a year. Mechanisms on solid fuel must be constantly cleaned of ash. The frequency of checking the status of the system can vary from a few days to one to two months.

It should be noted that the considered types of boilers do an excellent job with their duties. They can perfectly replace each other, while it is important to focus not only on the technical features of the systems, but also on the availability of fuel.

Let's start, of course, with maximum power. There is no need to think that if “10 kW / 100 m2” is written in the characteristics of the boiler, then it will be enough for a small house with a margin. Firstly, the power of any solid fuel boiler depends very much on the quality of the fuel, moreover, the characteristics indicate for coal (heat transfer is highest on it). Try to throw in firewood - and it will immediately get colder at home, well, and if the firewood also gets damp ... In addition, a larger boiler will have a larger firebox - which means that it will have to be heated less often.

Generally, the need for frequent addition of fuel is a common problem with solid fuel boilers. There are several ways to solve:

• Bunker boilers- they automatically “feed” the firebox from a separate container (bunker). Such systems were developed primarily for pellets (fuel pellets), which are very convenient to feed with an auger, but now there are models that can work on coal.
• Long burning boilers have an increased loading volume, and the combustion process itself is not quite common there - the fuel burns from top to bottom. But they also have their own not always convenient features - we wrote about this higher in the rating.

But in any case, a "long-playing" boiler will become more complicated and more expensive, especially with a bunker. Then how about combined boiler? In them, heating is provided not only by the combustion of fuel, but also by the heating element installed inside - if the boiler goes out, the electricity will continue to maintain at least some temperature. It is convenient to leave such boilers for the night - you won’t wake up in the morning, feeling that the tooth does not fall on the tooth. Often, such boilers are also offered retrofit kits for gas or diesel fuel. Some models even initially provide for automatic switching to liquid or gaseous fuels if there is no fire in the furnace. In general, this option is interesting, if only because when it becomes possible to connect the house to gas, you will not have to change the boiler, buy a new one, redo the connection: you can simply put the gas burner on the old one.

Important point - heat exchanger design. The ideal option is cast iron: a thick-walled monolithic heat exchanger, if the manufacturer does not “miss” shells and microcracks in the casting, will be truly eternal, and will also withstand increased pressure without problems. But such a boiler will be both more expensive (you may not fit into the budget), and heavier (the question of the strength of the floor, you may have to strengthen it). Steel heat exchangers have an inevitable risk of weld leakage, and the walls are usually thinner. Therefore, it is worth at least taking a heavier boiler, and look at the reviews on a specific model before buying - however, the reviews themselves have been buying for a long time ... So it’s better to choose a solid fuel one on the forums, and not on popular sites for reviews that occupied paid praise.

To build an autonomous heating system in a private house, you can use different methods. And, by the way, it can be of a very different design - there are simpler models, and there are more demanding ones. At the same time, it affects the choice of the type of boiler and what kind of fuel the owner of the house is going to heat. There are installations, liquid fuels, wood, pellets, coal. We are also interested in solid fuel boilers: we will consider an overview of the models and the choice of the best among them in this material.

The principle of operation and features of a solid fuel boiler

Before proceeding to compare manufacturers and models of such units, let's figure it out - what kind of installation is this? This is a special device that is designed to burn a certain type of solid fuel for the purpose of heating (for example, water), which, circulating through the pipes inside the house, will heat it, giving off the accumulated heat. In theory, solid fuel is an ordinary stove that has a special container with water. A pipe circuit is connected to this storage tank, through which the heated liquid goes on a journey around the house.

Fuel is supplied to such a unit manually, although in industrial plants this process is automated. Various solid (most often natural) materials are used as fuel for the boiler - usually coal, peat, wood, fuel pellets, coke, wood chips, etc.

On a note! Thanks to solid fuel boilers, it is possible to establish the process of recycling woodworking waste - wood chips and sawdust. Thus, the units perform not only a heating function. Their use is justified in those areas where the woodworking industry is widely developed.

Typically, solid fuel boilers are used in cottages, as well as for heating small workshops. Some owners of private houses do not bother buying the installation in the store at all, since this device can be made by hand, because its design is extremely simple.

1. Fuel through the furnace door is placed into the combustion chamber manually and ignited.
2. Water is heated in the lower part of the heating circuit - the so-called heat exchanger, made of metal.
3. Through a special pump or in the process of natural circulation, heated water enters the pipe system and flows through them.
4. In the process of circulation, the water gives off the heat accumulated in the heat exchanger.
5. The liquid returns to the boiler already cooled down, where it is heated again, and the process is repeated again.
6. Emissions (smoke) resulting from the combustion of fuel exit through the chimney.

Now solid fuel boilers are sold in many hardware stores, these devices are reliable, unpretentious, easy to maintain, and therefore are in demand. Installations come in various sizes and shapes - square, rectangular, round. Also, they can differ from each other in power and other parameters.

To avoid overheating (and such a phenomenon takes place), the boiler can be equipped with an overtemperature protection system. For example, cold water can be added to the heat exchanger at the signal of a special temperature sensor. Also, a buffer tank can be installed at the outlet of the installation, where liquid of excessively high temperatures will be mixed with cold liquid - thus the system is cooled in this case.

Advantages and disadvantages

Solid fuel - far from ideal heating installations. They, like other units, have their advantages and disadvantages. Knowing the latter will help determine the choice of model, as well as decide whether such a boiler is needed in the house.

Advantages of using solid fuel boilers:

• relatively low price, which was achieved due to the simplicity of the design;
• the possibility of using different types of fuel in one installation;
• raw materials for the boiler are relatively inexpensive;
• a solid fuel boiler does not need to be connected to the mains, its operation does not depend on the presence of electricity in the house;
• high reliability of the installation - one might say, non-failure operation;
• high level of heat transfer;
• it is possible to install such a unit without the consent of the supervisory authorities;
• a modern automated boiler should be fired up only once at the beginning of the season (individual models);
• a large selection of boilers on the market;
• The efficiency reaches 85% or more.

Disadvantages of using solid fuel boilers:

Types of solid fuel boilers

In general, all solid fuel boilers are the same - they have a firebox for burning fuel, a heat exchanger, they work regularly to heat a residential or non-residential premises. But still, installations are of different types and differ from each other in various parameters and performance characteristics.

Table. Types of boilers operating on solid fuels.

Fuel for boilers

Various solid materials can be used as fuel for the above-described units; thus, boilers can also be divided according to the type of fuel that is used:

• coal installations;
• wood boilers;
• boilers on pellets (fuel pellets);
• plants operating on peat briquettes;
• installations on mixed fuel (in these it is possible to burn different types of fuel).

All the boilers in question, according to the manufacturers, have been operating for at least 10 years. However, it can be said with confidence that the installations can serve for longer periods - up to 30 years - provided that they are carefully and properly used.

Popular manufacturers and models

There are many models on the market of solid fuel boilers that are worthy of choice, however, if there is a desire to purchase a reliable and high-quality device, then it makes sense to consider the products of the following brands:

• Zota;
• Pereko;
• Buran;
• Viessmann;
• Stropuva;
• Heiztechnik and others.

Let's take a closer look at the most popular models. For example, a wood-fired boiler, Stropuva S10. It is usually used for heating small rooms, while it does not need to be loaded with fuel for three days. The boiler has a high efficiency (90%), does not depend on the availability of electricity in the house, has a small size and attractive appearance. The main disadvantage is the high price (about 94,100 rubles).

The Dakon DOR F 16 boiler already works on coals, and not on wood. At the same time, it is contraindicated to load firewood into it. But on the other hand, the unit is able to burn even low-quality or damp coal. Excellent heat dissipation, high efficiency, independence from the power supply and low weight are the main advantages of this installation. The boiler is protected against overheating. The price is from 45,600 rubles.

The installation called Zota Pellet 25A consumes ordinary fuel pellets as fuel - one of the most economical types of fuel. Such a boiler can be safely called ultra-modern - it is equipped with an LCD display, a pleasant design. It is possible to control different pumps, and ignition is carried out thanks to electricity. The efficiency is quite high. The installation is capable of heating large areas, and the main drawback is the high price (from 196,000 rubles).

The Viessmann Vitoligno 100 VL1A025 30 kW boiler is pyrolysis and runs only on wood for 10 hours with a full load of the fuel chamber. Able to heat quite large areas - up to 350 m 2. At the same time, the boiler will definitely remind you when it needs to add firewood. The efficiency is moderately high (87%), and the power is very large. But with regard to fuel, the boiler is capricious and is very expensive (204,600 rubles).

Among long-burning boilers, Stropuva S 40 is in demand, which will work on 50 kg of ordinary firewood for about 70 hours, and even with an efficiency of 95%. With its help, it will be possible to warm up a room with an area of ​​​​up to 400 m 2. Pellets, coal, coke can also be used as fuel.

Among cast iron installations, a very popular model is the Lamborghini WBL 7, which has good thermal insulation, excellent efficiency (90%), and the ability to control power. A fully loaded combustion chamber is enough to operate the boiler for 12 hours. The installation heats a room up to 280 m 2 in area. The cost is about 76,900 rubles.

Steel Bosch Solid 2000 B K 16-1 is a great way to save money, but buy a quality unit. It is versatile in relation to fuel, besides it is very easy to maintain. Steel, by the way, is used for the production of this boiler of high quality, and therefore the installation will serve for a long time and will not burn out. Very reliable and with excellent appearance model. The price is from 52,400 rubles.

If there is a desire to buy a boiler, but there is very little money, then the best choice is the inexpensive GEFEST KVO 20 TE from the Siberia manufacturer. It costs mere pennies compared to other models (19,750 rubles), but at the same time it is reliable and burns both coal and firewood well. The unit is enough to heat a room up to 200 m2.

Prices for solid fuel boilers

solid fuel boilers

Choosing a boiler for the house

The choice of a solid fuel boiler is a responsible matter, especially if it is planned to purchase an expensive unit. However, if you know all the intricacies of work and the characteristics of the installations, then choosing a device will be quite simple.

Step 1. First you need to decide which fuel will be most convenient to use. Here you should pay attention to prices. In some regions it is cheaper to buy coal, in others - wood.

Step 2 It is important to decide whether you need a boiler that can heat water for domestic needs, or it will only work for heating. If hot water is needed in large volumes, then it is advisable to buy a single-circuit boiler, and in addition to it, take a boiler. If water is needed in relatively small volumes, then it makes sense to buy a two-circuit unit.

Step 3 Choosing the right boiler power is also not an easy task, since with its excess it will be a pity for the funds spent on a more powerful installation, while with a shortage it will be too cold in the house, and the equipment will spend all its resources to warm the room.

Advice! You can choose the power of the boiler based on the heat loss of the house. It is easy to determine them: the total area of ​​\u200b\u200bthe house is taken, multiplied by the height of the ceilings, and the resulting figure is multiplied again, but by a factor of 0.041. The result will be equal to the required power of the boiler (+ - 10%).

Step 4 Now you should choose the material from which the heat exchanger should be made - cast iron or steel. In order to save money, you can buy a steel installation.

Step 5 An important factor when choosing a unit is ease of maintenance. You should not take a boiler that is difficult to maintain and operate, especially if there is not so much time to mess around with it. The same applies to the duration of the installation without additional fuel supply.

Step 6 It is worth choosing an installation with maximum efficiency - the higher this indicator, the more efficient the unit works, which means that it is more economical.

Video - How to choose for home

The modern one is equipped with a double-circuit solid fuel boiler with a storage tank for hot water