Long burning cast iron coal boilers. Which cast iron solid fuel boiler to choose - types, differences, characteristics. Floor-standing cast iron solid fuel boiler "Lamborghini"

Residents of the private sector, owners country houses and cottages today are showing increased interest in heating devices running on solid fuel. There may be several reasons for such attention to solid fuel boilers, starting with the desire to achieve independence from a centralized energy supply and, conversely, due to the lack of it. The pace of suburban housing construction today is significantly faster than the speed of work on gasification of populated areas, so the only way out of this situation is cast iron boilers heating with solid fuel.

Why cast iron boilers when there are wide choose models of steel solid fuel boilers? We suggest that you familiarize yourself with the design features of solid fuel cast iron boilers and answer the question accordingly.

Features of modern cast iron solid fuel boilers

For country house solid fuel boilers heating systems made of cast iron are best option heating device. Residents of private houses install similar units as backup source heat in case of extreme circumstances. Both options are justified from the point of view of expediency. Gas heating, despite its availability, is constantly becoming more expensive. There are frequent cases of pressure drop in the gas line. A cast iron boiler burning coal, wood or pellets will help out in such situations, providing your home with necessary warmth and hot water.

For residential buildings located far from power lines, solid fuel becomes the main source of heating. This is especially true in the central and northern regions of our country, where they still dream of a central gas supply, and heating stoves and boilers with wood is considered a common activity. The heating boiler, made of cast iron and running on solid fuel, is experiencing a rebirth today. Having become a successor to the traditional Russian stove, the solid fuel boiler is a high-tech device.

The main advantage that modern models have heating equipment made of cast iron - this is a high power unit. Some models have power up to 2000 kW. Into the furnace solid fuel boiler Everything that is at hand goes: firewood, coal, coke, peat, wood products and waste. The only point that you should pay attention to is that cast iron boilers are inert devices. The power range of such units is not significant, but in operating mode the boiler can produce maximum performance.

Thanks to the introduction of various engineering and technical innovations into the design of boilers, manufacturers managed to increase the efficiency of units of this type to 80%. More efficiency only for pyrolysis boilers, but that's a different story.

For reference: a modern cast iron solid fuel boiler is a multi-sectional device. Each section is made of cast iron. By the number of sections you can judge the power of the heating device.

All structural elements have threaded connection. Seams and joints are treated with high-temperature sealants. The production of cast iron boilers and the assembly of equipment is carried out in high-tech production. Such products are made using a special metallurgical method. The casting process produces a cast iron alloy in which the percentage of carbon is 2-4.5%. By adding special additives, it was possible to obtain a high-strength alloy that is resistant to high temperatures.

Thanks to its design and physical and chemical properties cast iron, the equipment has a long service life - up to 30 years. This fact captivates many consumers. In comparison with other types and types of solid fuels heating devices, a cast iron boiler is more reliable and has a longer service life.

Long service life is explained by the high resistance of cast iron to corrosion. Cast iron can only become covered with dry rust on the outside, under the influence of external factors.

The solid fuel boiler models on sale are multifunctional. Cast iron heat exchanger has high heat dissipation and lasts a long time required temperature coolant. The inertia of cast iron boilers eliminates this advantage, making it difficult to regulate the heating temperature of the coolant. Despite this drawback, a boiler with a cast iron heat exchanger can operate normally at low temperature operating conditions, which makes it convenient for domestic use.

For reference: In most cases, such heating units are installed in open heating systems, where the circulation of boiler water is carried out naturally, due to gravity. A solid fuel boiler made of cast iron can be installed in heating systems with forced circulation, however, operating pressure in the system should not exceed 1.5 Bar.

What models of cast iron boilers are produced

Cast iron boilers in their own way design features are divided into two generally accepted types:

• single-circuit;
• double-circuit.

The first option is a type of heating unit limited in functionality. Single-circuit boilers provide only autonomous heating.

Important! Hot water supply is not possible in this case. The way out of this situation would be to connect a water heating tank to the boiler or install an additional heat exchanger with large and constant flow water. For normal operation the installed DHW elements must be linked to the heating boiler automation system.

The second option is the most common. Many residents of private houses are interested not only in heating, but also in hot water for household needs. In this case, cast iron solid fuel boilers are connected to an additional circuit through which DHW is provided. An additional circuit can be replaced by installing an indirect heating boiler.

On a note: for domestic purposes, a boiler with a capacity of 80-100 liters is selected. The limited volume of hot water and the massiveness of the structure itself are significant drawback such an engineering solution.

If your water consumption is constant and in small volumes, it is quite suitable.

Structurally heating boilers made of cast iron are divided into units with natural draft and with forced ventilation. In the first case, the air inside a residential building in work area the boiler is supplied naturally. Combustion products, soot and soot exit through the chimney in the same natural way. The system is designed for low-power boilers and is suitable for installation in small buildings.

Forced ventilation is a more advanced and reliable design. Using a fan atmospheric air enters the furnace, ensuring combustion of the loaded fuel. The hood works on the same principle. creates an additional low-pressure zone, due to which combustion products are sucked into the chimney.

Construction of a solid fuel boiler in a classic configuration

A classic solid fuel cast iron boiler is a complex mechanism in which each element has its own purpose and performs certain functions. High structural strength, reliable connections individual elements designs provide safe operation unit.

The number of sections in cast iron solid fuel boilers is always fixed. The diagram shows the device cast iron boiler, location of the main structural elements. The main components of a cast iron boiler are:

• sections;
• pipe (chimney outlet);
• nipples;
• combustion chamber with door;
• ash tray;
• fans.

Almost all parts and components of the structure are interchangeable, which makes the cast iron boiler very convenient and practical to maintain. The absence of complex structural products and devices simplifies the operation of the boiler in living conditions. The design of the boiler is simple and understandable even to those uninitiated. boiler equipment to the average person.

As for the control mechanism, the situation here is ambiguous. Cast iron boilers using coal or other organic fuels have, in most cases, mechanical system management. The main control mechanism is the control mechanism, which is responsible for controlling the decrease or increase in the heating temperature of the coolant. Modern devices, produced mainly by foreign companies, are equipped with controllers and blower fans

For reference: blower fans are installed on solid fuel cast iron boilers to eliminate the resistance that arises in the air duct.

Such devices have little impact on the boiler’s ability to be adjusted; however, due to additional equipment, the efficiency of the boiler increases. The combustion chamber and cast iron sections are not picky about fuel quality. Unlike pyrolysis boilers, which require dry (maximum 20% humidity) fuel, cast iron boilers long burning cope with any type of fuel, in any condition.

Advantages and disadvantages

Before choosing a boiler for an autonomous boiler system, you should weigh the pros and cons. Each type of heating device has its own advantages and disadvantages. Solid fuel boilers made of cast iron also have their advantages and their obvious disadvantages.

We have already said that heating equipment of this kind is very inert and difficult to adjust. It takes a long time for the boiler to cool down. When installing the device in a heating system, it is necessary to install expansion tank, acting as a coolant temperature regulator in the circuit.

A significant drawback, if the operating conditions are not met, for this heating equipment is the fragility of the cast iron heat exchanger. Such units suffer greatly from mechanical damage, sharp changes temperatures and water hammer.

Important! When transporting the new boiler, care must be taken to avoid impacts or falls.

Damage to the heat exchanger can be avoided if you follow the operating rules. You cannot load cold firewood into the firebox and fill the device system cold water. For reliability, you can install mixing units that act as a mixture.

In technological terms, heating devices with cast iron heat exchangers are significantly inferior to gas units and other types of solid fuel equipment in terms of thermal efficiency.

Compared to steel appliances, heating appliances made of cast iron are more expensive. However, you should not bring all the listed factors together and give up on equipment of this type. The advantages of this technique are obvious:

• long service life;
• high resistance to corrosion processes;
• absence of scale inside the heat exchanger;
• maintainability and manufacturability of the boiler design itself;
• acceptable dimensions of equipment corresponding to living conditions;
• high resistance to electrochemical reactions and to sharp drops in boiler water temperature.

Let's sum it up

Solid fuel appliances steadily occupy one of the consumer niches among heating equipment. The wide technological capabilities possessed by the new models have brought heating devices made of cast iron to a new level.

Today, solid fuel units made of cast iron are becoming a mandatory attribute of a country house. Omnivorous heating devices in terms of fuel, ease of maintenance, simplicity of design, make these devices competitive products in the heating equipment market. High price products should not confuse the consumer. The invested funds will pay off in full, taking into account the service life of the boiler equipment.

Even far from civilization you can create comfortable housing. IN winter period A high-quality heating boiler that runs on solid fuel will become indispensable. Modern models able to work without outside interference and constant monitoring for several days.

Solid fuel boiler

This technique has several options, the main division of models depends on the following parameters:

• Type of fuel;
• number of circuits;
• download methods;
• power;
• size.

The heating system is installed on the floor based on safety precautions and operating rules. The devices can operate on solid fuels such as coal, coke, charcoal, firewood.

There can be one or two circuits. The functionality of the product depends on their number. Single-circuit options are suitable for the heating system. They heat only the water that is in the heating system. If you want to have hot water in the tap, pay attention to the double-circuit one, equipped with an additional burner.

Which model is better to buy?

Long-burning boilers are presented in a wide range on our website. When choosing, be guided by the size of your home or business. Modern models can process both wood and coal fuels. In this case, combustion occurs in such a way that fine ash remains as a result.

For industrial use, options that run on coal are suitable, which will be supplied inside automatically as needed.

If you decide to choose a high-quality cast iron option, keep these nuances in mind. The price of such products is slightly higher than that of steel ones, but at the same time the efficiency is higher, they have good corrosion resistance, and cleaning can be done less frequently. You will also have to take care of a special foundation that will support the heavy weight of the boiler.

By purchasing a branded stove on our website, you receive a quality guarantee. We are official dealers leading manufacturers, we deliver in Moscow and other cities of Russia, Belarus and Kazakhstan. Even on the coldest winter day you can feel like it's hot summer outside.

• Good corrosion resistance and long service life
• The heat exchanger consists of sections and if one of them breaks, it is easy to replace

• The cost of long-burning boilers is higher than the classic options.
• The efficiency of the burned fuel is 70-80% (lower than that of gas), it is necessary to regularly fill the firebox or bunker with firewood.
• The temperature control mechanism is primitive and does not allow accurately maintaining the set temperature. It actually depends on the frequency of adding firewood to the firebox.
• The need for regular cleaning of ash and combustion products.
• Firewood needs to be selected according to the size of the firebox and stored somewhere, preferably in a dry place.

In conclusion, we can say that solid fuel cast iron boilers great alternative other heat sources. First of all, because of its simplicity, safety and sufficient effectiveness even for the northern regions of our country.

1. Cast iron heat exchanger - advantage or disadvantage?
2. Floor-standing cast iron solid fuel boiler "Lamborghini"
3. Solid fuel heating boiler "Baxi" BPI-Eco
4. Cast iron solid fuel boiler "Roda" Brenner Classic

The heat exchanger is one of the most important parts of a solid fuel boiler. The functionality and efficiency of the entire device as a whole largely depends on what material it is made of and what properties it has. In this article we will try to figure out why cast iron heat exchangers are preferable, which ones have disadvantages and features. We will also conduct a mini review of solid fuel heating boilers presented at Russian market, which use heat exchangers made of cast iron.

When choosing a heating boiler, the main difference between the models that catches your eye is the material from which the heat exchanger is made. Traditionally it is made of either steel or cast iron. There are many legends about the advantages of cast iron products; let’s try to confirm or refute some of them.

Cast iron heat exchanger - advantage or disadvantage?

One of the biggest advantages of cast iron heat exchangers is their resistance to corrosion. Steel boilers quickly rust and fail, while devices made of cast iron, when correct operation, can last for decades and save you an impressive amount of money on the purchase of a new solid fuel boiler.

Photo 1: Cast iron heat exchanger for a solid fuel heating boiler

If you perform the installation correctly, you won’t have any problems with it. long years which he will serve you faithfully. However, if you make mistakes during transportation, installation or connection, some of its disadvantages may appear.

The first one is fragility. If a solid fuel boiler is delivered or installed carelessly, it can easily crack, thereby wasting the lion's share of the boiler's cost.

The second main problem with cast iron boilers is sensitivity to temperature changes. If there is a large temperature difference between the supply and return lines, the heat exchanger may crack. That is why all owners of cast iron heating boilers constantly monitor the temperature in the return line and do not allow it to fall below a certain level. A common practice to combat this drawback is to install a four-way mixing valve, which mixes hot water from the supply into the return line, thereby reducing the temperature difference and minimizing risks. Among other things, household cast iron boilers are quite massive and their price is significantly higher than for steel devices.

Typically, the heat exchanger of a cast iron boiler consists of hollow sections. The greater the power of the device, the greater the number of sections included in the design. They are tightly connected to each other, the internal cavity is filled with coolant, and the space inside is used as a firebox. In our reviews, we looked at several similar models, one of which.

Cast iron boilers are single-circuit and double-circuit. In the case of one circuit, all the heat is used only for heating the premises. IN dual-circuit models There is a built-in hot water supply circuit providing hot water supply.

In addition to those heating devices with cast iron heat exchangers, which we have already reviewed on the website, in this article we will look at several more popular models that you can buy for heating your country house.

Floor-standing cast iron solid fuel boiler "Lamborghini"

Italian household solid fuel boiler Lamborghini WBL bright representative devices with a cast iron sectional heat exchanger. The manufacturer produces low-power models from 12 to 50 kW. In addition to using coal and firewood, it is possible to install a burner to work on diesel fuel.

Among the main advantages of the Lamborghini WBL solid fuel boiler are:

• Stacked sectional heat exchanger made of a special cast iron alloy. Its design is made in such a way as to ensure maximum heat removal and thereby high efficiency.
• Possibility of installing a special burner to operate on diesel fuel. All necessary equipment supplied for installation.
• The spacious firebox makes it possible to use long logs.
• The boiler is electrically independent; all settings and power adjustments are performed mechanically using an automatic draft regulator.

Basic specifications:

The low power of the Lamborghini boiler makes it an ideal device for heating small country houses. country houses, and the lack of dependence on the power grid makes it possible to use it even in those areas where power lines have not yet reached.

Solid fuel heating boiler "Baxi" BPI-Eco

Let's consider another cast iron solid fuel boiler "Baxi" of the BPI-Eco series. Their main feature is that they are made of highly ductile cast iron, which reduces the likelihood of cracking upon impact and overheating. There are only 5 standard sizes available with power from 25 to 65 kW. Let us note the main advantages of these devices:

• The spacious firebox and wide door make it easy to load large portions of fuel into the boiler, thereby increasing its operating time.
• The supply of primary air is dosed by a special thermostatic valve. Secondary air is supplied through a special hatch on the door of the loading chamber.
• A special type of non-combustible thermal insulation increases the fire safety and energy efficiency of the boiler.
• The spacious and easy-to-remove ash tray makes cleaning easy.

Main characteristics of the solid fuel boiler "Baxi" BPI-Eco:

It is worth noting that all imported cast iron boilers are structurally and visually similar to each other. For example, in one of our previous reviews, we looked at one, which is very similar to the BPI-Eco model from Baxi.

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

Reliable heating system for a country house

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

Solid fuel boilers: operating features

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

For a long time, solid fuel boilers were not very popular due to the impossibility of automating their operation process. Today this problem was completely resolved, and models capable of long time work offline. The use of such long-burning solid fuel boilers makes it possible to provide a home required quantity heat, without spending time on constant reloading of fuel. It is enough to load fuel once, and the boiler will operate efficiently throughout the day.

Types of boilers

Solid fuel boilers can differ in three main characteristics:

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

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

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

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

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