Combined gas and solid fuel boiler: types. Combination heating boiler: solid fuel and gas Combination boilers for home

In individual heating systems of a private house or cottage, it is most advantageous to use boilers that can operate on various types of fuel. Thanks to this feature, if one type of fuel is unavailable, the combination boiler can heat the coolant using another heat source. And this allows the heating system of the dacha to operate without any downtime, which eliminates the possibility of the coolant freezing in the radiators.

Kinds

Manufacturers classify combined heating boilers according to various criteria. Chief among them is the fuel used. It goes like this:

1. Solid fuel (firewood, briquettes, pellets).
2. Diesel fuel.

In this case, various modifications can use two or more types of fuel. According to this criterion, devices are:

1. Dual fuel.
2. Multi-fuel.

The first are represented by the following varieties:

1. Units such as wood - gas, coal - gas.
2. Device type solid fuel- electricity.
3. Boilers gas - electricity.
4. Boilers gas - diesel fuel.

The most popular among them are gas-electric boilers. A feature of all dual-fuel installations is that one type of fuel is the main one, and the second is auxiliary. This means that when, for example, wood, gas or electricity runs out, it is used only to maintain the minimum temperature. With the second type of fuel, the boiler cannot produce the required power level.

As for multi-fuel boilers, their types are as follows:

1. Equipment: wood – gas – electricity.
2. Devices: wood – gas – diesel fuel.
3. Boilers gas - diesel fuel - electricity.
4. Units wood - electricity - gas - diesel fuel (universal and represent The best decision for heating a house or cottage).

Also combined installations There are single- and double-circuit. Many modern models are double-circuit, that is, they are capable of not only heating the house, but also providing for its residents hot water for everyday needs.

Combination boilers heating systems differ from one another and way to switch to another type of fuel. He can be manual or automatic. In the first case, you have to stop the operation of the boiler unit and retrofit it by installing an additional burner or replacing one type of burner with another. Such devices differ in that they have:

1. one firebox in which any type of fuel can burn. Although there are exceptions;
2. . It is in demand for operating a gas-firewood boiler on gas;
3. relatively small sizes.

Read also: Diagnosing the operation of fire tube boilers

An automatic combi boiler is capable of independently changing the type of fuel. It is distinguished by either a special burner that allows you to burn gas and liquid fuel, or the presence of several chambers. Each of them is designed for a separate type of fuel. Units with automatic change of heat source may also have one chamber. These are gas-liquid devices and boilers with an electric heating element.

It is worth adding that multi-fuel installations are always distinguished by automatic change of the heat source.

Gas boiler - wood

The design of such an installation may provide for the presence of either one or two chambers for fuel combustion.

The structural features of the first type are as follows:

1. The gas burner is located at the top of the firebox.
2. The heat exchanger is located above the burner. This element is made of steel or cast iron. The first option is preferable because it is more durable (cast iron is a brittle material) and lightweight. Boilers combined with a cast iron heat exchanger are heavy. The advantage of such a circuit is only the impossibility of rusting.
3. Ash pan under the firebox.
4. Smoke exhauster. Without him carbon monoxide, formed during the combustion of gas, cannot escape.
5. General .

Firewood in such a unit is placed under gas burner. This means that when solid fuel burns, the burner becomes covered with soot. The operating principle of the unit involves the use of one of the types of fuel. In this case, to switch, you need to completely stop the boiler, wait until it cools down, and then carry out a thorough cleaning of the burner.

A two-chamber boiler apparatus for a country house or home is capable of changing the fuel used without completely stopping. Thus, after the wood is burned, the gas part of the unit is immediately turned on. Human intervention is not required to switch to the second fuel.

The design involves placing a chamber for firewood at the top, and a chamber for gas at the bottom. In this case, the unit is made so that it falls into the lower chamber. This is not good because it contaminates the injectors. To avoid this, some manufacturers build a removable ash drawer into the area between the chambers. The firebox for wood is not very voluminous. Since the boiler has a second chamber, its dimensions are larger than those of a single-chamber.

Read also: Manufacturing a hydrogen boiler

Wood-electrical units

According to the principle of structure, it is not much different from solid fuel boilers. That is, they have:

1. Firebox.
2. Heat exchanger located in the combustion chamber or adjacent chamber.
3. Ash chamber.
4. Mechanical or electronic automation.

An additional element is a heating element, which manufacturers build into the heat exchanger.

Very often it is placed near the fitting through which the cooled coolant enters. A heating element may be located in other areas of the heat exchanger. The number of heating elements varies. It all depends on the model. As for the power of the electrical part, it is less than the figure that occurs during the combustion of solid fuel. This characteristic directly depends on the number of heating elements used.

Can be part of all types of solid fuel boilers. That is, it can be seen in classic devices for summer cottages and installations for long or ultra-long burning.

Boilers gas - electricity

The situation with them is almost the same as with solid fuel devices. Typically, such combi heating boilers heat water by burning gas. An additional heat source is used only when the pressure or gas in the gas pipeline disappears or the propane in the cylinder runs out.

Such installations have gained great popularity due to:

1. Compact sizes. The presence of a heating element and automation for its regulation does not greatly increase the dimensions of the device. For this reason, this type is the only one that has wall-mounted modifications, although many of these boilers are floor-standing.
2. Possibility of installation in the kitchen. To install all other types, you need to organize a boiler room in separate room cottages or houses.
3. Convenient use. Both gas and electricity are under full automatic control. The owner of a summer house or private house can only set the operating modes and enjoy the warmth. There is no need to bring any firewood, pellets, briquettes or diesel fuel.
4. No purchase required membrane tank, circulation pump and other important piping components. These elements are often integral parts of the structure.

Recently, it is increasingly possible to find universal combination systems in private homes. heating boilers, which can operate simultaneously on two types of fuel. The combination of electricity and firewood is an excellent choice: such a boiler is very compact, practical and reliable. In the event of a power outage or fuel shortage, you will not be left without heat and hot water in winter.

Design Features

Externally, a combination boiler is practically no different from a conventional solid fuel unit. In principle, this is the same wood-burning heating boiler, which has a heating element built into the heat exchanger. Another important difference is the design of the water jacket. One of the walls of the furnace of such a boiler has a complex configuration and is made by cold stamping. Heating elements are mounted between the walls of the jacket, and there is a special contact hole to which the contacts of the electrical wiring wires are connected.

Combination boiler: wood - electricity

Combination boilers that run on wood and electricity are designed very competently and thoughtfully; the main operating units are:

• solid fuel loading hatch – solid fuel is loaded into it; the volume of fuel loaded at a time depends on its size;
• ash pan – supplies oxygen for fuel combustion and collects ash;
• burners allow you to switch from one type of fuel to another;
• draft damper - regulates the intensity of fuel combustion. The chain drive opens or closes the ash chamber damper;
• heat exchanger – provides warm water supply;
• temperature sensors - automatically regulate the operation of heating elements, which ensures continuous heating.

The automation system allows you to adjust the operating mode of the boiler, as well as its power. There are boiler models that provide hobs for cooking, they are installed above the firebox. Boilers with two circuits allow you to connect a “warm floor” system; for this there are special outlets for installation.

Device combination boiler

Boilers with one circuit and two circuits are produced. In the first case, the boiler is used only for heating, in the second it will provide hot water for household needs. Units with manual and automatic control systems are also available for sale. Boilers with a manual control system are cheaper, and automatic control makes maintenance and life easier for the owner.

Advice. When choosing a boiler for heating your home, you must correctly calculate the power of the device based on the area of ​​the room. Fuel consumption will depend on this.

Principle of operation

The operating principle of a combi heating boiler is quite simple. The heat generator, powered by the electrical network, starts the electric heater. Tubular electric heaters begin to heat the coolant (water) automatically according to the principle of a boiler. This process is automated by a special device; firewood is only loaded into the firebox manually.

While the heating element is heating the water, you need to fill the combustion chamber with wood and set it on fire. The combustion chamber is located below and transfers heat from burning wood to a heat exchanger. When the temperature of the coolant reaches the set point, the heating element turns off, and then only firewood generates heat. The burning power of wood can reach 30 kW, which is enough to heat a house.

Combination boiler operation

When the wood burns out, the heating element turns on again and maintains the set temperature. You can only heat with wood, and turn on the heating element only to be on the safe side. If you run out of wood, then only the heating element will provide heat. But often electricity and firewood are used at the same time, this is especially convenient at night, when it is not possible to constantly add firewood to the firebox. Then in the evening the firewood is laid, and the heating element is turned on not at full power to maintain heat.

If electricity is used as a priority for heating, and firewood is used only as a reserve, then boiler maintenance is simplified to a minimum. Automatically set desired temperature and the heating element is responsible for its maintenance. When there is a power outage, as often happens in our country, you add firewood to the firebox and the boiler starts working on solid fuel.

Important. When operating the boiler with wood, make sure that the damper on the chimney is open. When operating on electricity, the valve can be closed.

Advantages of combi boilers

Advantages of boilers, operating on wood and electricity in comparison with devices operating on one type of fuel are obvious.

Combination boiler with built-in heating element

1. Versatility. You can use one of two types of fuel at your discretion.
2. Economical. Electric Energy is the most accessible view fuel, wood too. In addition, coal and waste from the wood processing industry can be used as an alternative. The result is a perfect union: wood - electricity.
3. Thoughtful design. Heat is properly distributed and energy losses are minimal, which makes these boilers very efficient.
4. Long service life. With proper operation, such a boiler will serve you faithfully for a very long time, at least 20 years.
5. Autonomy. There is no need to constantly monitor the process - the automation will do everything for you. Moreover, when operating on electric fuel, the heating mode using a heating element is limited by an uninterrupted supply of electricity.
6. There are models with pre-built pipes for connecting the “warm floor” system.

Important. Combination boilers that run on wood and electricity operate efficiently even at low power levels.

Flaws

And yet, with all the advantages, combination boilers also have disadvantages, like any other heating equipment.

It is better to install a combination boiler on a pre-strengthened base

1. It is necessary to equip a separate room - a boiler room, and also need premises for storing fuel reserves.
2. Weight. Devices made of cast iron can weigh several hundred kilograms; before installing such a boiler, it may be necessary to install a concrete pad to strengthen the base of the floor. Due to the significant weight of the product, models for wall mounting are not available, only models for floor installation.
3. The design of combined boilers is more complex, which affects the cost of installation and service repairs.
4. Another drawback - low power electrical component. The power of electric heaters should not exceed the power of the wood burning chamber. The power range of the wood-burning firebox is from 6 to 25 kW.
5. The cost of combined boiler models is 20-40% more expensive than similar solid fuel boilers, but their purchase is much more justified than installing one type of boiler and then subsequently replacing it with another.

The manufacturer offers combined heating boilers powered by electricity and wood of various capacities, configurations and performance. When purchasing such equipment, pay attention to such points.

Consider how much fuel you need to add at one time

1. Power depends on what fuel is used. Decide in advance what type of fuel the units will run on in priority.
2. The size of the combustion chamber - the volume of the firebox determines how often you will need to load fuel.
3. Quietness – installation of a special valve ensures quiet operation of the unit.
4. Number of circuits - for some models, water heating is carried out only by heating elements. More economical are models in which the coolant coil is built into the combustion chamber.
5. Heat exchanger. It can be made from cast iron or steel. Cast iron devices are resistant to corrosion, take a long time to heat up, but also give off heat for a long time, have a significant mass and can crack when sudden change temperatures Steel ones are subject to faster oxidation and corrosion, are lighter in weight and resistant to temperature changes.
6. Grate bars. Made from various materials. It can be cast iron or ceramics. Cast iron is more heat-resistant and suitable for burning any solid fuel. They use honeycomb cast iron grates with ceramic coating; they are suitable for bulk materials that use more oxygen during combustion.
7. Weight and dimensions of the boiler. It may be necessary to reinforce the surface area on which the unit will be installed with a concrete screed.

Installed combi boiler

Advice. If your house area is 80 sq. m, then you should not purchase a unit designed to heat an area of ​​400 sq. m. This will entail an overexpenditure of funds for the purchase of the boiler and its further operation.

Currently, electricity and solid fuel are the most accessible and affordable types of fuel. Combined heating boilers are combined together this advantage. In addition, their design is reliable and efficient, which sets them apart from the heating boilers on the market.

Connecting a combi boiler to electricity: video

Combination boiler: photo

A combined solid fuel boiler is considered the most common type of universal equipment. Below we will talk about all types of fuel use combinations.

To begin with, we note that universal boilers can have two circuits:

1. One circuit is intended for heating the room.
2. Two circuits - the ability to provide the room with heat and hot water in flow mode.

Just like other units, universal boilers can be floor-mounted or wall-mounted. Unlike a boiler with a steel heat exchanger, equipment equipped with a cast iron heat exchanger has more weight and, accordingly, a floor modification. However, cast iron is much more durable material and increases the service life of the boiler. Average term The service life of such a device is 30 years, provided that all necessary rules for tying such equipment are observed.

Universal heating boilers

Undoubtedly, the combi boiler has big amount positive characteristics. The main advantages are, of course, its versatility and practicality.

Before buying a universal heating boiler for your home, we recommend that you familiarize yourself with all the variations offered to the consumer. Based on the number of burners used, such boilers are divided into:

1. Multi-fuel - used from three types of fuel.
2. Bi-fuel - it is possible to use two types of fuel.

Prices for universal boilers for heating a private home are higher than for conventional boilers operating on one type of fuel. Nevertheless, similar equipment- a great opportunity to use all available resources.

Owners of universal equipment claim that buying a double-circuit combination boiler for heating a private home was the right decision, since such a device is very economical and efficient.

Gas boilers with combined fuel types

Universal equipment has many combinations of fuel use.

Multi-fuel:

1. Are used:

• firewood
• electricity

1. Are used:

• firewood coal pellets
• electricity

Bi-fuel:

• gas electricity
• gas diesel
• gas firewood coal pellets

Coal gas boilers heating systems are very popular.

Boilers for heating with wood and electricity

An electric wood heating boiler is ideal for rooms not connected to main gas. Basically, such equipment can work on different types fuel. The price for a combined wood and electricity heating boiler, as for other similar units, depends on the power of the equipment. Other factors also influence pricing specifications equipment. A universal boiler that operates using a wood-electric circuit and is easy to operate. Typically, the design of such a boiler is as follows: a solid fuel steel boiler is combined with an electric heating element of varying power. It can be either initially built-in or built-in if necessary. Electricity is used to maintain the temperature of the coolant after the firewood has burned out. As a standard, an electric heating element is selected based on the power of a solid fuel boiler in a ratio of 1:2. Equipment that uses solid fuel, wood, coal, electricity, is considered highly efficient and economical. A solid fuel boiler with an electric heating element is the most profitable combination heating equipment. Like any other solid fuel unit, such boilers require a chimney made of of stainless steel with thermal insulation and the presence of mandatory supply ventilation in the room where it is installed.

Heating boilers combined with solid and diesel fuel

Liquid and solid fuel boilers can operate on diesel and wood (coal, pellets). Various modifications of such boilers are presented in assortment. It is advisable to install a universal boiler using wood and diesel fuel in a separate room. It is recommended to entrust installation to specialists. The combination of two types of fuel (diesel and wood) is the most economically beneficial for the consumer.

Combined solid fuel boilers

Solid fuel can be combined in various variations:

• wood pellets;
• pellets wood chips;
• coal pellets;

Be sure to read the instructions included with the equipment. The manufacturer indicates what type of fuel can be used in the operation of this particular boiler.

Rapid development individual construction has become a special feature of the last few years. Frightened by the unsatisfactory state of the environment, city dwellers are flocking en masse to the rapidly growing suburbs, where they can build a convenient and comfortable home. The villagers are not far behind them, erecting spacious buildings. One of the most important problems of private development is the arrangement of a heating system. It is not always possible to connect to a centralized system, so you have to set up an autonomous option. In this case, combined heating boilers, universal devices that operate on various types fuel.

What are the benefits of using such a device?

Heating – a complex system, which includes many elements. One of the most important is the boiler. It is advisable to decide on the type of device at the design stage, having carried out all the necessary calculations for this. They must take into account all the features of the future building: ceiling height, level of thermal insulation of the premises, location of the boiler and radiators, etc. The type of equipment determines the need to design additional premises for storing fuel, the nuances of installing the boiler, and so on. Quite often it turns out to be quite difficult to decide on the type of device.

Combination boilers are designed to work with different types of fuel. This is especially convenient when there may be interruptions in the main type of fuel.

The easiest way to choose a device is when there are no problems with obtaining one type of fuel. If this is not possible, difficulties begin, which a combined device will help to cope with. Its design allows the device to use various types of fuel, which makes it universal. Boilers are especially valuable for developers whose households are located far from communications. It is quite possible that after some time all the necessary highways will be connected.

In this case, installing a boiler designed for one type of fuel is unprofitable and short-sighted, because in the foreseeable future more cheap option. Redesigning the system will be quite expensive. In addition, combined instruments are also indispensable where there are regular fuel shortages. If problems arise, it will be enough to simply reconfigure the boiler and switch, for example, from gas to liquid or solid fuel.

The advantages of combined systems include:

• “Omnivorous”, which allows you to level out the inconvenience from possible interruptions in the main fuel.
• Equipped with outputs for possible connection of several circuits. This could be radiator heating, “warm floor”, etc.
• Availability of a heat exchange unit with increased productivity to ensure hot water supply.
• Flexible choice of fuel types for different modes, which makes it possible to make the process more economical.
• Possibility of installing a boiler.
• Highly environmentally friendly system.
• The equipment operates without human intervention. The program provides switching to alternative view fuel in case of failure of main fuel supply.

The disadvantages of combined devices are their high cost and energy dependence, since the automation of the devices runs on electricity. In addition, most systems will require equipment in a special room designed to store a supply of solid and liquid fuel.

Classification of combination boilers

There are several types of combination boilers used for heating a home. Let's look at the advantages and disadvantages of each of them.

Type #1 - units for gaseous and liquid fuels

This variation is the most rational. This is due to the fact that boilers operating on gaseous and liquid fuels are structurally almost no different. To switch from one type of fuel to another, the devices will require several minutes and minor burner adjustments. Thermal power and the operating modes of the device do not change. The equipment operates on liquefied, natural gas, as well as liquid fuel, most often diesel. In most cases, when installing boilers of this type, gas is chosen as the main fuel, since it is safer, more environmentally friendly and economical.

Diesel is usually chosen as backup fuel. To store it, you will need to prepare a room with a special tank. The combustion products of gas and liquid fuel are removed equally, so no special devices or system reconfigurations will not be required. The power of boilers using this type of fuel is quite high. They can heat large areas. That is why developers very often choose them to install heating in private houses where they live permanently.

A universal device designed to operate on gas, solid fuel and electricity. Used for heating relatively small buildings

Type #2 - units running on gas, solid and liquid fuels

The design difference from previous models is the presence of a firebox designed for solid fuel. Thus, the device runs on natural or liquefied gas, liquid fuel, as well as coal, peat, firewood, pellets, etc. The main advantage of the system is its versatility and relatively low price.

In addition, it also has serious “cons”. This is a low level of automation and low efficiency. In addition, for the normal functioning of the device, a full-fledged chimney will be required. Heating a large area using solid fuel is quite complicated and expensive. Therefore, such systems are used for heating small buildings without permanent residence or at the dachas.

Type #3 - boilers with electric heating elements

Both modifications described above differ only in the type of fuel and use combustion energy to produce heat. Devices with heating elements can also heat the coolant through the use of electricity. It is unlikely that the power of the device will allow heating a large building, but for small houses it will be quite enough. These devices are different high level automation and are able to protect the entire system from freezing. The equipment automatically starts the heater as soon as the temperature in the system drops to +5C.

Such devices have proven themselves especially well where there are frequent interruptions in the main fuel, for example, diesel fuel or gas, and there is no way to constantly monitor the operation of the boiler. Automatic control equipment makes it easy to cope with this task. The advantages of boilers with electric heaters also include reliability, versatility and high efficiency, which the device produces when operating on the main type of fuel.

Multi-fuel boilers, which can operate on all types of fuel, are quite bulky and take up a lot of space. Available only in floor-standing version

How to choose a boiler that is right for you?

Before purchasing a device, you need to decide not only on the types of fuel that will be used for this boiler, but also on the necessary functionality. On sale you can find:

• Single-circuit devices. They are intended exclusively for space heating.
• Dual-circuit devices. Used for heating, as well as hot water supply.
• Universal double-circuit boilers. They are similar to double-circuit ones, in addition they are equipped with a special cast iron stove on which you can cook food.

The last two types of equipment are most often produced with low power. This is due to the fact that powerful equipment requires a clear separation of all functions and capabilities.

The power of combined boilers can be very different. The most popular models are those with power ratings from 20 to 120 kW. Such devices can heat rooms from 180 to 1000 square meters. m. With a ceiling height of no more than 3 m. However, there is a peculiarity: the higher the power of the device, the less functionality it has and additional functions. Largest quantity Boilers with a power of up to 50 kW have options. The devices can operate on almost all types of fuel, and can also be equipped with a stove for cooking and a boiler for heating water.

A special feature of combined devices is their heavy weight and some bulkiness. This is due to the fact that cast iron is used for the manufacture of system elements, which is characterized by high corrosion resistance. And it inevitably appears due to the presence of condensate accompanying the combustion process of liquid fuel. For this reason, combi boilers are produced exclusively in floor-standing versions. To install the system, a separate room is most often equipped with a mandatory supply of fresh air.

Review of popular brands - what does the market offer?

South Korean boilers Kiturami designed to work under heavy loads in any climatic conditions. Most models are designed to operate on two types of fuel. For example, solid and liquid. Most often equipped with two circuits, they can be installed in residential or production premises. The popular Kiturami KRM model has a two-chamber flow-type heat exchanger. The turbocyclone burner for liquid fuel is equipped with a heating system, built-in pump and filtration system. The device is controlled from the remote control. The KRM 30 modification can heat rooms up to 300 square meters. m, KRM 70 – up to 550-600 sq. m.

Most of the models of the famous South Korean brand Kiturami are designed to work with two types of fuel

Another famous manufacturer– Italian company Ferroli. All devices produced by the company have special protection against overheating and freezing. In the process of developing devices, the company uses new technologies aimed at reducing the toxicity of flue gases and increasing efficiency. Ferroli brand equipment is modified specifically for Russian operating conditions, including for water and low quality gas. The company produces several lines of devices of varying power. Ferroli GN1 is very popular. These are cast iron floor standing boilers, the power of which varies from 23 to 93 kW. The devices are designed to work with liquid or gaseous fuel.

A domestic manufacturer from Krasnoyarsk produces equipment under the brand Zota. These are combined devices that operate on gaseous, solid, liquid fuels, as well as electricity. Boilers are made of steel sheets 3-4 mm thick. The power of the devices is from 20 to 50 kW. The devices meet international standards in the field of reliability, quality and safety. Today you can find four models of such devices on sale. All of them are characterized by increased operating pressure, which allows achieving maximum efficiency. The special design of the heat exchanger increases the quality and speed of heat transfer. A special ejector mechanism mounted on the firebox door reduces the density of smoke. At the same time, the cost of domestic devices is lower than that of foreign analogues.

Combined heating devices from Krasnoyarsk are different high quality, reliability, durability and efficiency at a relatively low price

It is also worth noting brand boilers Protherm, which are characterized by durability, high performance and low toxicity of flue gases. This is due to the use of modern burners and the optimal shape of the combustion chamber. To reduce thermal costs for heating and the cost of operating the device, its body is covered with special heat-insulating boards made of mineral wool. All devices are equipped automatic system management. For residential premises, models of the Bizon NL series are most often used. This is a double-circuit equipment made of low-temperature cast iron. Depending on the type of burner, the devices can operate on various types gaseous and liquid fuels. Their power varies from 30 to 80 kW.

Combination boilers are a practical solution for heating a private home in conditions of possible interruptions in the main fuel supply. There are many modifications of devices, which makes it possible to choose the most best option for every occasion. It is best to purchase the device from specialized companies. Experienced specialists will help you decide on the model and, if necessary, carry out installation work. Installing combined equipment ensures that your home will always be warm and cozy.

Combined heating boilers – perfect option for supporting comfortable temperature indoors. Consumers consider such systems as worthy alternative traditional ways heating

Combination boilers combine the advantages of other monofuel units. They are able to alternately operate on different types of fuel. For example, when solid fuel is completely burned, the boiler automatically switches to electricity, diesel or gas. This solution is perfect for organizing a backup heating system.

Let's consider the operating features, advantages and disadvantages of popular models of combination boilers, which are in greatest demand in the heating systems market.

Specifications:

• power – up to 38 kW;
• Efficiency – 89%;
• fuel – gas/diesel;
• installation method – floor;
• combustion chamber – closed;
• type – 2-way;
• dimensions 870/450/485 mm;
• weight – 148 kg.

Model description

The unit is intended for installation in industrial premises, country houses, country houses. Allows you to efficiently heat large areas and is suitable for heating water in a boiler.

The fuel can be used: diesel fuel, liquefied or main gas, fuel oil. The possibility of operating the boiler with certain types of fuel depends on the nature of the installed inflatable burner, which is purchased additionally.

Thanks to the installation room regulators coolant temperature, the boiler system automatically maintains optimal microclimate indoors. Information about the operation of the unit is available to the user on the electronic display at any time during operation of the unit.

Heating cost boiler Protherm Bison 40 NL starts from 40,000 rubles.

Advantages and disadvantages

The model is equipped with a built-in microprocessor that provides convenient control of operating parameters heating system. The combination boiler is able to interact with external storage boiler, providing housing with hot water. The unit has a high coefficient useful action– about 90%.
When using boilers of this model, users did not identify any serious deficiencies.

In the room where the combined model is installed, supply requirements must be met. required quantity air. These standards are regulated by current legislation. Recommendations for installing the boiler specified in the instructions must be followed by the boiler manufacturer's contract service technicians during installation and commissioning.

Specifications:

• power – 34 kW;
• Efficiency – 90.5%;
• fuel – gas/diesel;
• installation method – floor;
• combustion chamber – closed;
• connection – standard 220 V network;
• dimensions 87/45/38 cm;
• weight – 148 kg.

Description

A universal single-circuit boiler that has a closed combustion chamber and a cast iron heat exchanger. Main gas can be used as fuel or liquid fuel(diesel, fuel oil). Can be retrofitted to run on liquefied gas.

The model has a fan injection burner with electric ignition and single-stage power control. The unit provides efficient heating premises. If there is a boiler indirect heating It is possible to operate the unit to meet the needs of users for hot water.

The Protherm Bizon 35 NL series of heating boilers contains functional sensors for regulating the flame level, controlling draft and overheating.

The price of the model is from 40,000 rubles.

Advantages and disadvantages

Among the obvious advantages of the model, it is worth noting high performance and economical fuel consumption. The boiler is distinguished by high-quality assembly and the possibility of quick installation.

The main advantage of the unit is the ability to operate on several types of fuel. Moreover, the system automatically distributes the coolant inside the heat exchanger to achieve optimal flow.

The model is distinguished by the presence of protection against freezing and overheating. The controller independently regulates the temperature and sets it optimal values depending on operation in the “Winter-Summer” modes.
The combined heating boiler is delivered to the end user in assembled form, ready for installation.

During installation, it is possible to replace individual cast iron sections. The model is easy to install, maintain, repair and maintain.

At the moment, no significant shortcomings have been noticed in the combination boilers of the Protherm Bizon 35 NL model.

Installation must be carried out by specialists with accompanying documentation (technical data sheet, installation and operating instructions). Original packaging must be stored in case of dismantling and transportation.

Specifications:

• power – 21 kW;
• Efficiency – 90%;
• fuel – gas/diesel;
• installation method – floor;
• combustion chamber – open;
• connection – standard 220 V network;
• dimensions - 860/570/565 mm;
• weight - 146 kg.

General information about the model

High performance sectional cast iron boiler. The manufacturing material is extremely resistant to mechanical damage and impacts environment, including manifestations of corrosion.

The model can be used as a main or backup heating device in country houses, dachas, and other residential buildings in the private sector.

Designed for use with a gas or liquid fuel burner. It has a heat exchanger with horizontal channels and turbulators for effective removal of smoke and carbon monoxide.

The built-in control panel is designed to control the operation of the burner. Contains elements to ensure the safe operation of the unit and set the optimal temperature regime. The presence of an electronic programmable control system facilitates rapid changes in boiler water temperature.

The unit can be supplemented with a functional block remote control, which allows you to adjust the operating parameters of the system from another room. The controller can be connected either wirelessly or wired. The control panel is equipped with an electronic display for installation optimal modes work.
The cost of the model is from 46,000 rubles.

Advantages and disadvantages

The De Dietrich GT 123 combination heating boiler is distinguished by the use of high-quality materials, reliable assembly, effective implementation of technical solutions. Finished goods are offered to the consumer only after passing tests and strict quality control. All this contributes to the long service life and reliability of the heating system during operation.

Among other advantages of the model it is worth noting:

• Operation from both liquid fuel and gas burners.
• Modest dimensions with decent power.
• Compact design.
• Easy transportation and ease of installation (possibility of using special handles and rods for convenient movement).

The De Dietrich GT 123 boiler can be characterized as a low-temperature model. Among the shortcomings, it is worth noting only the relatively low maximum power.

The boiler must be installed in a manner that provides unobstructed access to the unit from all sides. The permissible distance to the housing as well as the arrangement of elements for supplying and exhausting combustion air are determined exclusively by specialists on the basis of current regulations.

Specifications:

• power – 35 kW;
• Efficiency – 85%;
• fuel – coal, diesel, wood;
• installation method – floor;
• combustion chamber – closed;
• connection – standard 220 V network;
• dimensions – 700/855/1360 mm;
• weight – 170 kg.

Description of the device

Combined biofuel system for heating and supplying hot water to residential buildings in regions with irregular supply of main gas. Boilers of this series operate effectively both with solid fuel (wood, coal), and diesel fuel. After combustion of one heat source, the unit automatically switches to consuming another.

The model contains two separate combustion chambers. Thanks to this feature, there is no need to repurpose the unit, which increases operational reliability.

A special feature of the model is an automatic controller, the presence of which contributes to convenient management air damper. The unit is equipped with a turbocyclone burner, electronic sensors and panels that provide the user with a full range of information about the operation of the system.

The combined boiler has a heat exchanger made of high-strength steel, a fuel pump and filter, and a functional thermostat.

The cost of units of the Kiturami KRM 30R series is from 11,000 rubles.

Positive characteristics

When operating the boiler, high performance is immediately noticeable. Another advantage is the presence of overheating protection, automatic blocking and shutdown of the system when the combustion chamber is emptied of coolant.

Among other advantages of the model, economical fuel consumption deserves special attention. The decomposition products that remain after burning solid fuel do not pollute the diesel burner. This moment significantly increases the stability and reliability of the heating system.

The Kiturami KRM 30R combined heating boiler is installed by specialists in accordance with the attached instructions and the requirements of the technical documentation. It is advisable to install the model in a separate room so that extraneous noise and exhaust gases during operation of the unit do not cause discomfort to both residents and neighbors. During installation, it is necessary to leave enough free space for unobstructed operation, repair and maintenance of the system.

Specifications:

• power – 32 kW;
• Efficiency – 91.6%;
• fuel – gas/diesel;
• installation method – floor;
• combustion chamber – open;
• connection – standard 220 V network;
• dimensions – 850/500/400 mm;
• weight – 133 kg.

Model description

The unit operates thanks to the operation of pressurized burner devices. Liquid or gaseous fuel can be used as a heat source.

The design is made of durable cast iron. The profile features an optimal arrangement of functional elements, which helps achieve high performance with minimal fuel consumption.

The unit casing is made in the form of innovative thermal insulation materials. The use of modern insulating panels allows achieving a negligible heat dissipation effect.

Additional equipment with certain types of controllers for controlling the functions of the device, water heating boilers, and a burner noise protection system is possible.

The cost of the Lamborghini Calor AX 3 32 R model on the domestic air conditioning equipment market is from 48,000 rubles.

Advantages and disadvantages

The main advantages of the model are high reliability and a decent level of performance, ease of operation, convenient controller, economical fuel consumption, attractive design.

The obvious advantage of the combined heating unit compact sizes appear. It is possible to equip the boiler with special functional modules, which contributes to maximum satisfaction of the needs of individual consumers based on existing conditions operation.

The advantage of the model is the convenient regulation of the indoor microclimate through the use of an optional room thermostat. Depending on the selected controller, it is possible to configure the operation of the unit to automatically change the temperature according to the weather.

Judging by consumer reviews, the model has no serious shortcomings.

The unit is installed in a separate room specially designed for these purposes, which is distinguished by the presence of well-thought-out ventilation.