The choice of a solid fuel boiler for long burning. How to choose a long-burning solid fuel boiler

What are solid fuel boilers, and what are the principles of their operation

It would seem that the heating of the house solid fuel(firewood, coal, peat) will disappear from use in the 21st century. But this statement turned out to be premature: today many more modern houses fueled by these energy sources. Of course, not an old stone stove is used for space heating, but modern solid fuel heating boilers.

These heat generators can operate on a different type of energy carrier:

• coal pellets;
• firewood;
• ordinary coal;
• peat pellets.

The principle of operation of a solid fuel boiler is quite simple: any of the above energy carriers is loaded into the furnace compartment of the boiler and ignited. The heat from combustion heats the water, which, circulating through the pipes, heats the house. Such heating boilers for long-burning wood have a number of negative features:

• short burning period (2-8 hours);
• the need to remove the ashes;
• the need to regularly throw new portions of the energy carrier into the furnace.
• low efficiency.

It was possible to get rid of these shortcomings with the development of fundamentally new solid fuel heat generators, which are long-burning solid fuel boilers. They are divided into two types:

• pyrolysis;
• upper combustion boilers.

Pyrolysis solid fuel boilers of long burning

The mechanism of operation of the pyrolysis boiler is based on the principle of splitting the energy carrier into pyrolysis gas and coke. This problem is solved with the help of a low burning rate of fuel, which, in fact, does not burn, but smolders. As a result of this smoldering, pyrolysis gas is formed, which burns when combined with air.

A long-burning pyrolysis boiler on wood or any other solid energy carrier structurally consists of two chambers: in the first, the fuel itself is split, and in the second, the pyrolysis gas is burned. In such a unit, the combustion process is under the control of automation: to increase the intensity of combustion, the system slightly opens the damper of the combustion chamber, letting more oxygen into it, and to reduce the temperature, it closes it.

Pyrolysis gas generators have a number of advantages:

• high efficiency of burning the energy carrier (there is a minimum of waste);
• long period of work without reloading;
• environmental friendliness (it emits a minimum of harmful gases that undergo thorough filtration);
• high reliability.

Pyrolysis units, due to the fact that they consist mainly of mechanical elements, are extremely easy to operate. If you want to install a long-burning boiler with your own hands, then this version of the heat generator is optimal.

But pyrolysis models also have certain disadvantages. They operate on forced draft, so they depend on an uninterrupted power supply. The fuel loaded into the pyrolysis boiler must be absolutely dry, and its volume in the furnace must comply with the requirements of the heat generator manufacturer.

Upper combustion boilers

The burning of fuel in conventional boilers and furnaces of fireplaces and stoves occurs from the bottom up, which is explained by the physics of combustion. But such a scheme is not always effective, since the burning rate is too high, which is why not all materials completely burn out. This disadvantage has been eliminated in top burning boilers, where the fuel burns out gradually from top to bottom.

This mechanism has been implemented thanks to design feature heat generators. They do not provide a grate and an ash pan. In the pan there are no elements that support combustion at all.

The fuel burns out when there is a shortage of oxygen, which is supplied to the combustion chamber through movable nozzles, and the oxygen supply volumes are controlled by automation. The fuel in the chamber burns out layer by layer, due to which such equipment demonstrates a number of advantages:

• high efficiency;
• minimum volume of waste (ash);
• minimum flow fuel;
• environmental friendliness (minimum amount of harmful emissions).

This type of long-burning solid fuel boiler is also equipped with automation that controls the intensity of combustion by limiting or increasing the supply of oxygen to the chamber.

The average power of such equipment is 6 kW, which is enough for heating small house. Ease of maintenance is the main advantage of upper combustion boilers: you only need to load about 50 kg of firewood or other energy carrier into the furnace, after which you can forget about the existence of the boiler for the next 30 hours.

How to choose a solid fuel boiler for long burning

If you have decided on the type of device, then in order to buy a long-burning boiler that would best meet your requirements, you need to find out a number of nuances:

• the volume of the heated room;
• average temperature in the room;
• the level of thermal insulation of the house;
• type of solid fuel.

Power Selection

For the boiler to provide comfortable temperature in the house, it is important to choose the unit of optimal power. This parameter is calculated by the formula P=S/10, where P is the power of the heat generator, and S is the area of ​​the heated room.

By the volume of the chamber and the type of its loading

When choosing equipment important role plays the volume of the combustion chamber and the way it is loaded. Since this criterion affects the main labor costs when using the boiler. It is better to give preference to units with large chambers, which are fed from above. This arrangement allows you to fully load the boiler with combustible material and reduce the time between procedures.

According to the material of the heat exchanger

The transfer of combustion energy to the coolant (water) occurs through a heat exchanger; in such devices it can be of two types - cast iron and steel.

1. The first option has a long service life (30 years), but is afraid of temperature changes and hard water.
2. And the second requires regular cleaning, but is resistant to sudden changes in temperature and chemical composition coolant. The time of its operation is 2 times less than cast iron.

Decide among the many technical parameters professional consultants who work in specialized stores of heating equipment will help.

If the price is a determining parameter when choosing equipment, then it makes sense to pay attention to a domestic-made long-burning boiler. Russian models are distinguished not only by an attractive price, but also by high reliability.

Outcome

Having acquired a long-burning solid fuel boiler, you are guaranteed to provide your home with uninterrupted heat supply, the cost of which will not be too burdensome for the family budget.

Devices such as solid fuel boilers long burning, are a very cheap and profitable option for heating your home, despite the fact that their operation is rather cumbersome. To date, manufacturers are trying to make such boilers practical and affordable for everyone. But you can still find old models. A modern long-burning solid fuel boiler is an efficient and simple device that will safely heat your home.

Historical aspects

Solid fuel boilers had one important drawback at one time - as the fuel burned, it was necessary to constantly add it. However, in the near 2000, an organization called Stropuva decided that this problem could be fixed. Edmuntas Shtropaitis, an inventor, invented such a device as a long-burning heating boiler.

The principle of operation was that air is supplied to the device through a special telescopic tube. So, a large supply of solid-type fuel will burn as needed - in a gradual manner.

Used as fuel traditional materials- that is, firewood, coke, coal. This greatly simplified the process of heating the premises. And if a cascade is made from such boilers, then it will be able to heat a very large room.

Solid fuel boilers

Solid fuel heating boilers can be different. And the main division into types is the device of a solid fuel heating boiler, which determines the method of combustion. So, in classic models and in most boilers, conventional combustion is used. However, we note that with the development of technology, this process is constantly being improved. As a result, a variety of new inventions appear.

Such inventions include pyrolysis boilers, in the process of pyrolysis, not only firewood is burned, but also wood gas. It should be noted that the coefficient useful action this type of boiler is significantly higher, and during operation soot does not appear, and ash is in a minimum amount. Of course, such boilers will cost more, but the whole price will pay off due to the fact that high efficiency.

Wood is a good fuel. In addition to firewood, waste from the woodworking industry can be used.

They are crushed to a very fine state, pressed into special granules, which are called pellets. Such granules are poured into the bunker and fed into the combustion chamber if necessary.

Such fuel is the prerogative of pellet boilers. Note that fuels can also be used alone or in combinations. In this case, you will need to purchase a universal or combined boiler that can run on any solid fuel. In addition to these types, solid fuel boilers can be dependent on electrical energy or independent.

A separate category is made up of industrial solid fuel heating boilers for long burning. If we consider classic version, then this is a rather bulky equipment, and in order to install it, a separate room is required. Strict requirements are imposed on the location of the boiler so that the use and operation of the boiler are safe in the future.

Many organizations have been successfully using industrial solid fuel boilers for decades because these devices are inexpensive and easy to operate.

Solid fuel boilers also differ in the following types:

• With manual loading;
• With mechanical fuel supply;
• With movable grates;
• With foretops.

If we consider the issue of fuel, then coal is usually used for industrial equipment. Although this is due to the fact that most industrial models are designed specifically for coal as an energy carrier. Modern models have high level automation and excellent environmental properties.

Choosing a solid fuel boiler

If you are going to install a long-burning wood-burning heating boiler, this will be an excellent alternative to the traditional one. gas heating. After all, such a system is easy to use, efficient in terms of heat transfer. It is worth noting that if there is no electrical energy, such a boiler will still not leave the room in the cold.

If the solid fuel boiler will be wood-fired, then it is better to choose lower combustion. This option is more optimal, since its efficiency will be higher than that of boilers with upper combustion for coal.

The bottom combustion boiler has two or three combustion chambers, so it is possible to burn off the fuel particles. So, as a result, the ejection harmful substances V environment will be less, fuel consumption will decrease.

It is worth noting that if you have a top combustion boiler in front of you, then unburned particles will enter the chimney along with the smoke. In addition, the advantage of boilers with bottom combustion is that it is possible to control the combustion process - by regulating the productivity of dosing the amount of air that will enter the furnace. For this purpose, a fan with a control system or a special regulator will be used.

Solid fuel boilers for long-burning heating can be made of both cast iron and steel.

Cast iron boilers are more resistant to corrosion. It is worth noting that this property is very important, because condensate will appear on the walls of the combustion chamber, and then it will disappear - when the temperature of the heat carrier is above the dew point.

Condensate during the combustion of a fuel such as coal is a rather aggressive environment. That is why the steel boiler will be exposed to the detrimental effects of corrosion processes earlier. In addition, a steel heat exchanger burns out faster, because cast iron has a high level of fire resistance. But at the same time, cast iron itself is brittle. It can be damaged by an accidental but strong impact.

Cast iron wood boilers heating long burning consist of sections. This makes it possible to transport the boiler disassembled, and then assemble it on site. In addition, if the integrity of a section is violated, then it can be replaced. The steel boiler is delivered already in ready-made, since it is welded from sheets.

Note that right before buying a boiler, it is worth deciding on its purpose - it will be the main heating or additional. And if you use it as an addition, then you can not buy an expensive model. And for permanent use, the model must be, first of all, of high quality.

An industrial solid fuel boiler for long burning came to our homes not so long ago, although humanity has known about the principle of this kind, slow burning, since medieval times. And the technology of a “smoldering fire” enclosed in a stone vise will be shown in practice by any professional forester or hunter. There are a great many modifications, and almost every seller offers a long-burning solid fuel boiler.

It will be possible to choose the optimal and reliable long-burning boiler for a private house only after a thorough assessment of the characteristics of the presented devices. In addition, it will be necessary to coordinate them with the characteristics of the heated room.

Solid knowledge of the range and classification of devices will help you choose a long-burning solid fuel boiler. Let's take a look at their varieties together and see what makes up the price of such an interesting and attractive product.

The demand among the population to buy long-burning solid fuel boilers is based on the constant need to save money, as well as the time spent on fuel loading and regular cleaning of equipment.

Solid fuel boiler of long burning - varieties.

The honorary title - a solid fuel boiler of long burning is given to any device that maintains combustion during the day. The boiler burned out for a day - it received the status of long burning, two burnt out - the status does not change, it burned out for a week - get everything the same name.

Thus, we can meet an apparatus with a different fuel smoldering support period, while the phrase “long-burning solid fuel boiler” itself is unlikely to reveal everything to us. specifications devices.

Only two main types of equipment are distinguished in this segment - a long-burning wood-fired boiler and a long-burning coal-fired boiler. Both devices are capable of serving both a system with a water circuit and a system with. In addition, a long-burning solid fuel boiler has a number of hallmarks which we will focus on.

Solid fuel boiler of long burning - methods of burning fuel

Traditional volatile boilers.

In traditional models, the simplest scheme for burning fuel reserves is usually implemented. By design, they resemble an ordinary stove, with an uncharacteristic special window located in the upper part of the boiler and used to load firewood or coal.

The principle of its operation is based on the smoldering process, which does not involve the burning of a bright flame. During smoldering, a special ventilation pump helps to release enough heat for heating, which turns on automatically and removes excess oxygen from the furnace.

Manufacturers have taught devices to track the percentage of oxygen in the combustion chamber, allowing required amount only to maintain smoldering, preventing an open flame from flaring up. The smoldering state, which maintains a solid fuel boiler for long burning, provides obvious savings in expensive fuel, and also frees the owner from the routine, hourly lining of firewood or coal.

Engineers made sure that the traditional solid fuel boiler of long burning included a special compartment for afterburning fuel residues. The afterburner is a winding labyrinth that promotes maximum heat transfer.

A simple solution made it possible to ensure almost complete afterburning and destruction of toxic products that occur during the operation of the boiler. Thus, it rises environmental Safety and economy of the device as a whole. At the same time, the generated heat is used to heat the coolant, increasing the efficiency of the boiler up to 85%.

The main element in the implementation of heat exchange in a traditional boiler is a heat exchanger. The coolant flowing through it ensures further transfer of thermal energy directly to the heating radiators.

The traditional solid fuel long-burning boiler is famous for its ease of operation, high reliability and long service life. The disadvantage is the mediocre efficiency, which leaves much to be desired. A more significant problem may be volatility.

Electronic oxygen regulation and fan operation are not possible without mains power. Thus, the operation of the heating system becomes vulnerable in case of emergency power failures. Of course, a pre-installed uninterruptible power supply device will come to the rescue. But, firstly, it must be bought, and secondly, its work does not imply long term operation.

non-volatile long-burning boilers

The second method of combustion is represented by numerous gas generators. This structure is often referred to as pyrolysis boiler. It is characterized by an increased efficiency value reaching 90%. High intensity of thermal energy generation is achieved by a special method of fuel combustion.

At first fuel material dries up. The further process is accompanied by degassing, as a result of which, about 85% of the substances during combustion are converted into combustible pyrolysis gas. Video review, describes in detail how a long-burning pyrolysis solid fuel boiler is operated.

The advantage of pyrrole boilers, is their complete non-volatility, the device is perfect for installation in problem regions with difficulties in supplying electricity. The second plus is autonomy. No constant adjustment required temperature regime maintained in the specified mode with an error of no more than ± 3°C.

Five times more economical than a direct flame boiler. It will take 10 kg of fuel per day to heat an area of ​​100 m2. Almost complete combustion - frees you from the frequent work of cleaning the boiler from ash. The duration of burning is about 12-16 hours.

Solid fuel boiler for long burning - pros and cons

In the absence of a gas main, there are not many alternatives to build a heating system. You can install, provided that gas supplies are established in the region. You can use environmentally friendly, but expensive electricity by connecting. But what if these options are not affordable? Or are gas and electricity resources limited or non-existent?

A long-burning solid fuel boiler will not require significant installation costs from the owner and will provide a reasonable replacement for the listed heating methods.

Advantages:

• Simple operation. Traditional work on wood, pellets or coal does not require special skills. Ash removal takes no more than an hour a week.

• Durability. Service life exceeds 10 years. A long-burning boiler is an unpretentious technique. Simple design, with careful operation, can regularly serve for several decades.

• Ecologically pure. The afterburner ensures almost complete combustion of the fuel. Emissions of harmful substances are a natural product of combustion - they are processed as a result of photosynthesis.

• High efficiency. There are models on the market with a value of up to 90 - 95%. Minimum heat loss. Engineering solutions optimize the process of afterburning pyrolysis gases. The design of the heat exchanger is designed with maximum heat transfer to the heat carrier.

• Efficiency and economy. Modern equipment slightly inferior to gas counterparts. The effectiveness of long-term burning reaches seven or more days.

• Acceptable cost of fuel. Sometimes the only possible one. Frees you from dependence on expensive gas equipment.

• There is no permit documentation for the installation of the boiler. It is not required to conclude contracts with gas services for service.

• Solid fuel boiler of long burning allows you to provide home ownership hot water, if there is a second circuit. In addition, it will help to expand the functionality.

Flaws:

• Permanent participation of the owner. Despite the long burning process from one load, sooner or later one has to return to replenishing the loading compartment with fuel.

• Regular cleaning. Probably the most unpopular process in maintenance requires constant cleaning of ash. It remains only to envy the pure gas equipment or electrical devices.

• Separate room. You will have to allocate a separate room with good ventilation and a chimney. A long-burning solid fuel boiler for a private house, as a rule, has significant dimensions, it may be necessary to prepare a special installation site with a reinforced foundation.

• Maintenance of fuel stocks. Replenishment and storage of fuel residues will require additional financial investments. Compliance with safety measures and maintaining a certain moisture content of the product also add to the problems in solving warehousing issues.

How to choose a long-burning solid fuel boiler

We propose to determine the evaluation criteria, according to which it will be easier to choose a long-burning boiler for a private house. Consider the main sections that you should pay attention to and get acquainted with optimal parameters suitable devices.

We hope our advice will help you choose the right long-burning solid fuel boiler to ensure a comfortable stay in the absence of gas.

solid fuel.

From the very beginning, you need to decide on the type of fuel most affordable in your area. Keep in mind that it will be cheaper and more accessible in transportation and warehousing. Is there active logging in the immediate area?

Most likely, wood-fired equipment should be preferred. Homeowners, where wood raw materials are in short supply, should be advised to take a closer look at heating with pellets.

A coal-fired or anthracite boiler is recommended for those properties where mining is underway or coal transportation is properly established. It is advantageous to organize heating systems using the sawdust combustion process at a wood processing facility.

Machine power characteristic

Choose required power long-burning boiler, a contractor will help installation work heating system. If you equip comfort with your own hands, calculate the area of ​​\u200b\u200bthe heated room.

Traditionally, 10 kW of boiler power is assigned per 100 meters of area. With a simple mathematical calculation, determine the required value. The obtained data will help to find the optimal long-burning solid fuel boiler in a large assortment on the heating equipment market. As a rule, it is recommended to add 10% to the obtained value in order to provide a power reserve in case of severe frost.

loading chamber

There is an indicator that depends on the ratio of the volume of the loading chamber and the power characteristic of the boiler. Sufficient, the value is considered if it falls within the range of the coefficient from 3.3 to 5 liters / kilowatt. The coefficient is an important criterion that helps you choose a long-burning boiler for your home.

If the final figure is closer to the maximum index threshold, the more joy for the homeowner - he will not often need to exercise before loading the device.

For example, consider the pyrolysis boiler Viessmann Vitoligno 100-S 25. According to the technical data, the size of the loading chamber of the apparatus has a volume of 110 liters. Power is 25 kW. We calculate the index: 110/25 = 4.4 l / kW. As you can see, the coefficient is within acceptable limits and is considered very good.

Boiler for solid fuel long burning Stropuva

Since we are talking about companies that market long-burning solid fuel boilers, we cannot ignore the well-deserved leader - Stropuva. The Lithuanian boiler is able to work on one refueling of coal up to 120 hours, on pellets 72, on firewood 30 hours, respectively.

Not very bad parameters for this type of long-burning boilers. Let's take a look at why Stropuva boilers have gained such great popularity:

• Long burning. Reaches 5 days.
• Multilevel security level. The company claims that during overheating and overloading, the boiler device shrinks like a tin can under the load of the foot and under no circumstances does not explode, but only shrinks inward.
• Profitability. Optimal characteristics of resource use. Waste wood can be used as fuel.
• Energy independence. The Stropuva boiler does not need electricity.
• Ecology is in the first place and meets high European standards.
• Attractive appearance.
• Warranty 5 years.

Lithuanian engineers, it was not in vain that they designed a long-burning boiler in the form of a cylinder. Now, thanks to its compact size, the installation of the Stropuva boiler does not require a large area and can fit in the limited space of a city apartment.

Pricing policy for long-burning boilers

The price is determined based on a variety of indicators and values, the main ones fit into three fundamental factors:

• Brand, country of origin;
• Thermal power characteristic;
• Design versatility and recyclability different kinds fuel.

By the way, Stropuva long-burning wood-burning boilers with a capacity of 20 kW are in the price range of 1400-1900 euros. At the same time, similar power, but on a universal model, will cost 2000-2400 euros.

The classic is represented on the market by the Buderus long-burning boiler, from a German concern. Operation is allowed on wood, coal, anthracite and pellets. The cost of the Buderus boiler is determined by the thermal power and lies in the range of 1400-1900 euros.

Let's add one more manufacturer of the European Union from Germany - the solid fuel boiler of long burning of the company (Junkers) shows excellent characteristics. The Junkers boiler stands out from the assortment for the better with a power of 32 kW with a price of 1600 euros for the device.

Viessmann asks for the highest price for its long-burning pyrolysis boiler for the Vitoligno model, the concern wants to receive from 2300 to 5900 euros for a boiler with a maximum industrial output of 80 kW.

It's time to turn to a domestic manufacturer. Available options start at 35 thousand rubles, so the Cooper solid fuel boiler Russian production can be purchased for 40 thousand rubles.

Also on the Internet there are a huge number of tips on how to make a solid fuel boiler for long burning with your own hands. If there is material skillful hands, you can create your own cauldron!

conclusions

In conclusion, we want to say that you should not give in to the impulse desire to buy a long-burning solid fuel boiler, calculate all the options, compare the calculations of operating savings again. Try to clarify the necessary and sufficient power of heat generating equipment. Most likely, the issue price will be in the same range.

Perhaps, in aggregate, let's say with, they will be equally costly from a financial point of view in comparison with a long-burning boiler, but less troublesome to use. Well, if you have decided that you cannot do without a long-burning boiler, do not be stingy and purchase a device with automatic feeding coal, it will greatly clothe your life.

In order to purchase a suitable heating unit for a private house, it is necessary to soberly evaluate the characteristics of the options offered and take into account all the features of the housing that needs to be heated. To cope with this task, you will have to make accurate mathematical calculations and think carefully about the moment of fuel delivery. The information that you will receive from this article will help you understand how to choose a long-burning solid fuel boiler. Use the suggested material to avoid common mistakes and make the right decision.

Varieties and principles of operation of solid fuel boilers for long burning

If you have to choose a long-burning solid fuel boiler, first of all, familiarize yourself with the classification of these units. Having a general idea of existing varieties, you will be able to navigate in a wide range and immediately exclude not suitable options. Solid fuel heating boilers differ in several ways, which will be described later in the article.

According to the method of fuel combustion

Long-burning solid fuel heating boilers are divided into two categories:

• Traditional. They implemented the most simple circuit fuel combustion. According to the principle of operation, they resemble an ordinary stove with a special window for supplying fuel. The main element is a heat exchanger that provides temperature transfer directly to the coolant. Such boilers are distinguished by unprecedented reliability and durability, but their efficiency leaves much to be desired.

• Pyrolysis (gas generating). This type is characterized by a high level of efficiency. Such units produce thermal energy, burning fuel in a special way. First, the unit dries the fuel. This is followed by degassing, during which about 85% of the substances during combustion are converted into combustible gas. The remaining 15% remains in the form of coal. In the internal cavity of the combustion chamber, the temperature rises to 600 °, due to which the combustible gas is oxidized and ignited. This process leaves a burning layer of coal. Masses of low-temperature gases are saturated with carbon, providing an increase in temperature up to 1000 °. Under such conditions, coal decomposes, releasing a large number of thermal energy. The air flow supplied to the upper wall of the combustion chamber directs the flame vertically downwards. Due to this, the combustion process becomes controlled. Continuous air supply ensures constant oxidation of combustible gases.

According to the material of manufacture

In the range of household solid fuel boilers there are units made of various materials. Manufacturers use two types of metals:

• Cast iron. The boiler, made of cast iron, is a sectional structure, each section of which can be separated from the rest. The possibility of dismantling makes the unit more convenient for transportation and installation. When it becomes necessary to carry out repair work this feature greatly facilitates the task of the master. During the operation of a cast-iron boiler, the internal walls of the combustion chamber are subjected to chemical corrosion. Dry rust appears on them (a film consisting of iron oxide). As a rule, it does not progress, so the efficiency of the unit remains at a consistently high level. Often it is not necessary to clean it from soot. The only significant drawback is the susceptibility to temperature changes. Thermal shock can damage the chamber walls. Such cases should be avoided.

• Steel. A boiler made of this metal is a monoblock unit that is assembled at the factory. It will not be possible to disassemble it for ease of transportation. Steel solid fuel boilers for long-term combustion are not afraid of thermal shocks, therefore, automatic electronic devices for changing modes are more widely used in them. However, systematic temperature changes lead to the formation of fatigue zones on the walls of the combustion chamber, which eventually leads to burn-out of the metal. If this happens, the unit cannot be repaired.

By type of fuel used

Heating solid fuel boilers for long-term combustion are divided into four categories according to the type of fuel burned:

• On wood. The most common variety. Its popularity is due to the simplicity of design and unpretentiousness to fuel. A solid fuel boiler for long burning on wood can work under almost any conditions, but it has one significant drawback - the lack of automation. As the fuel burns, the user has to put firewood into the firebox.

• On the corner Suitable for a large area home much more than a wood-burning one. Coal is low cost and easy to transport.
• On pellets. As a fuel for this variety, wood pellets are used, which are compressed waste from the woodworking industry. They are called pellets. The relatively small combustion chamber of a pellet boiler burns briquettes, generating a large amount of heat.
• On sawdust. A separate type of solid fuel boilers that burn sawdust, dry grass, leaves and other waste. Such units provide high-quality heating of housing, and also solve the problem of disposal of waste of plant origin.

Dual circuit

Long-burning solid fuel double-circuit boilers are distinguished by the fact that they not only heat housing, but also heat water for domestic use. By installing such a unit, you will heat the house and at the same time solve the problem of providing warm water for bathroom and kitchen. A long-burning solid fuel boiler with a water circuit is more expensive, but it eliminates the need to install a geyser or boiler.

Criteria for choosing solid fuel boilers for long burning

WITH general classification we have already familiarized ourselves with solid fuel boilers. It's time to consider the criteria by which the owners of private houses determine the best options for units for installing heating systems. After reviewing the following sections, you will learn how to choose the right long-burning solid fuel boiler for your home.

Type of fuel

First of all, you must decide what fuel will be used for heating. Consider what type of fuel is more convenient to buy and import. If you have harvested wood, it would be wise to purchase a wood-fired boiler. Owners of cottages where there are no trees can recommend heating with pellets. Coal-fired boilers are suitable for those who have the opportunity to order high-quality fuel on favorable terms. Sawdust heating systems are typically used to heat woodworking facilities.

Power

To determine the required power of the heating system, you need to make simple mathematical calculations. Calculate the total volume of the rooms that you are going to heat. The resulting figure will help you find a model with the appropriate parameters in a wide range of solid fuel boilers for long-term combustion. Keep in mind: you always need to provide a power reserve so that during severe winter frost the house does not get cold.

Device weight

When choosing a solid fuel boiler for long-term combustion for heating a private house, the mass parameter is taken into account only if the owner intends to fix the purchased unit on the wall. According to the state standards established by the gas service of Russia, this installation method is allowed for heating boilers with a volume of less than 100 liters.

Loading chamber volume

This parameter characterizes the ratio of the amount of fuel to be loaded with the power of the heating unit. The more fuel that fits in the loading chamber, the less often you will have to replenish the supply of firewood / coals / pellets. For steel boilers, the ratio of these values ​​​​is 1.6-2.6 l / kW. Cast iron heating units consume fuel in smaller quantities - 1.1-1.4 l / kW.

The total volume of the loading chamber will help you roughly evaluate the possibilities. You will not succeed in filling it 100% in any case. Much more important is the useful volume of the loading chamber. This value displays the actual amount of fuel that you can load into the combustion chamber. To determine it, you need to know the principle of burning the fuel of the selected boiler and the method of loading the fuel (top or front).

Efficiency

One of the most important parameters for any solid fuel heating unit for long-term combustion. The figure expressing the efficiency of the boiler characterizes that part of the generated thermal energy that is actually spent on heating the home. By choosing a high efficiency unit, you can reduce your power requirements. Low efficiency means wasted heat, so you'll have to add more fuel to keep your home at a reasonable temperature.

Overview of the best manufacturers

Modern market heating systems for private houses is full of offers from many brands, but not all of these units can boast of reliability and durability. You learned how to choose a home solid fuel boiler for long burning from the previous sections of the article. It's time to narrow down your search to those manufacturers that truly deserve respect:

1. Stropuva. The Stropuva trademark produces high-quality coal-fired heating boilers with a high level of efficiency and a long burning period after each laying.
2. Hearth. The company "Ochag" produces solid fuel boilers equipped with heat exchangers of the most modern design. The units of this brand are distinguished by durability and high performance.
3. Wichlacz. A reliable Polish brand that produces excellent solid fuel boilers operating on the principle of layered combustion of fuel.
4. Viadrus. Worldwide respected manufacturer of coal, wood and coal-wood solid fuel boilers.
5. Don. Heating units of this brand are distinguished by reliability and durability. With minimal fuel consumption, Don provides a high level of efficiency.
6. Teplodar. Heating units of long-term combustion of the brand "Teplodar" in their reliability and performance can be compared with the best offspring of German manufacturers.

Where to buy and how much

The acquisition of a solid fuel boiler for long-term combustion for heating a private house is a serious task. It must be approached with the utmost responsibility. Such a unit costs a lot of money, so the first step is to evaluate the reliability of the selling side. In the table below, you will find contact details and some commercial offers of trusted Moscow heating equipment suppliers.

Video

For those who are deprived of the opportunity to purchase an expensive heating boiler, the option of assembling such a unit at home is suitable. The video below will explain in detail how to do this. Listen to the advice of experts, and you can create your own Alternative option solid fuel boiler for long-term combustion.