The boiler is a universal electricity solid fuel. The device and versions of combined boilers

Today, country houses and cottages are gaining more and more strength, and with them special heating equipment. Combined heating boilers are a great option for creating comfort and warmth in your home. The heating system is too important and expensive element to acquire without prior familiarization. What we are going to do now.

Design features

For the correct and efficient operation of such equipment, it is worth understanding its design. Universal heating boilers have several ways to switch to combustion of different types of fuel:

1. Replacing burners
2. Switching to different furnaces

In the first version, the complete boiler has several burners for each type of fuel. To switch to another type of fuel, you just need to replace the burner. The second option involves several combustion chambers. One combustion chamber uses solid fuel, the other gas or liquid fuel.

Varieties

The next thing to know is the types of manufactured heating systems. The fuel you use determines the type of equipment. Combined boilers are divided into:

1. Boilers for gas and liquid fuels

The operation of such boilers does not require much effort. To switch to another type of fuel, you do not need to spend a lot of effort or time, while the power does not change at all. These home heating boilers use gas or liquid fuel to operate. Gas is often chosen as the main fuel because of its safety, environmental friendliness and low cost. The power of this equipment is large enough that it can heat a large area.

2. Gas-firewood boilers

They differ from the previous type - by the presence of a solid fuel furnace. In addition to gas and liquid fuel, they also work for: coal, peat, firewood. Such equipment is popular, due to its price and versatility, but in comparison with the previous type of boilers, gas-firewood has a lower efficiency and low level automation. They are often used for heating small areas, since the larger the area, the less profitable it is. In addition to everything, universal gas-wood heating boilers require a high-quality chimney in order to function stably.

3. Boilers with electric heating elements

The above boilers differ only in the type of fuel used, boilers with heating elements can also operate on electricity to heat the room. They are ineffective for large buildings, but they have a high level of automation and frost protection. At temperatures below +5, the system automatically turns on the heater. Automation saves you from various interruptions and constant control over work. Combined heating boilers for wood and electricity boast high efficiency and versatility.

Advantages and disadvantages of universal boilers

Given all of the above, you can determine their strengths and weaknesses. Strengths include:

• fuel availability and low cost;
• a rich choice in fuel helps to maintain the unit in working order, even in the absence of one of the types of fuel;
• the ability to regulate the operating mode, while saving fuel;
• ecological cleanliness;
• automatic operation, and the possibility of compatibility with the "Smart Home" system;
• reliability and ease of use.

Solid fuel combined boilers long burning also have weaknesses:

• restriction in the field of application - only residential buildings;
• requires a separate room in the house for storing fuel and installing equipment;
• the need for regular inspection and maintenance.

Despite all the disadvantages, long-burning combined boilers show excellent economic and operational performance, and this supports the demand for them.

When buying a heating boiler, you should pay attention to the following parameters:

• power;
• the presence of a second circuit;
• grate material for ash screening;
• heating material;
• the size of the chamber firebox;
• valve for quiet boiler operation;
• heat exchanger material.

Mounting

The reliability of the heating system will depend on the correct and high-quality installation of the equipment, therefore it is necessary to take the installation with all responsibility, and to monitor the correct installation and connections of all nodes and components.

When installing equipment such as, for example, pellet combi boilers, special requirements are imposed

The best choice for installation would be a floor-standing boiler, since its installation does not require unnecessary structures. Before installation, check the strength of the floor, place a non-combustible material, for example, asbestos and steel sheet, on the place where the stake is installed. Make sure that the boiler is installed as evenly and motionless as possible, if necessary, put a non-combustible material under the legs of the unit to balance it. Also, do not forget that you may need to dismantle it, so count on convenient dismantling when installing.

When connecting equipment, you must strictly follow the instructions and correctly connect the boiler to the chimney. The room for the location of the boiler must be selected in advance. It must be well ventilated to ensure ventilation.

You can do the installation alone, but when connecting, the presence of a specialist is desirable.

Operation of universal boilers

Before installing a combined boiler for long burning, you should take into account that such equipment is heavy and requires a fairly strong foundation. Another no less important point is the purchase and installation of a chimney sufficient to provide the boiler draft. You also need to pay attention to cleaning the ash pan. The degree of pollution will depend on the type of fuel and the saturation of the boiler.

Boiler room is an important point, which should not be forgotten when purchasing universal boilers. The chimney should be bought with non-combustible thermal insulation, to prevent fire from contact with the heated surface of the pipes. The next step is to place a steel sheet in front of the boiler firebox to protect the floor from possible sparks or burning particles. Also, do not forget about the delivery and loading of fuel, some boilers need to be loaded every 4 hours. The moisture content of the wood should not exceed 20%.

A few words about popular brands

Kiturami boilers, from South Korean manufacturers, designed for heavy loads and all weather conditions. Most equipment is designed for multiple fuels. They are equipped with two circuits and can be installed both in residential and industrial premises. The Kiturami KRM series has a robust double chamber heat exchanger. The equipment is controlled from the remote control. Combined heating boiler KRM 30 heats a room of 290 sq. M and less, KRM 70 - up to 570 sq. M. m.

The next company is Ferroli. She specializes in special protection against low and high temperatures... The Italian company, thanks to new technology, reduces the toxicity of fumes and increases efficiency during development. Especially for Russian conditions, the company modifies its equipment. For example, low-quality gas and water. Ferroli GN1 model, one of the most popular, cast iron casing and power from 22 to 92 kW. Uses liquid and gas fuels.

Zota is a Russian brand of heating equipment. Steel solid fuel combined boilers for long burning with a steel thickness of 4 cm and a capacity of 22 to 48 kW. Domestic equipment meets all standards of reliability and safety. All models of this brand have an increased working pressure, due to which the maximum efficiency is achieved. Reducing the density of smoke, increasing the rate of heat transfer and its quality, and this at a price lower than Western counterparts.

Conclusion

Universal boilers – an excellent solution to the heating issue. There are many models and their modifications on the market that can satisfy any requirement. It is important to buy such equipment in specialized stores, where you will not only be provided with a guarantee, but also a specialist who will help with advice when choosing and, if necessary, installation. Universal solid fuel boilers long burning time will be able to guarantee warmth and comfort in your home.

Heating is perhaps the most pressing problem for owners country houses and cottages. There are many options for organizing a heat supply system. You can choose a gas or electric boiler for heating your home, or a gas electric boiler. Which option is best depends on a number of factors. Most often they use electric or gas boilers... Combined units are still a novelty for many. Therefore, this article will consider the technical characteristics and cost of gas-electric boiler equipment.

The choice of the optimal type of heating determines the cost of heating the house and the comfortable living conditions in it. Therefore, it is important to think over everything carefully, weigh and give preference to the most suitable option. After all, the system is being mounted for many years.

Consider gas or electric heating - which is better for a private house. In this regard, the following important parameters must be taken into account:

• area of \u200b\u200bthe heated room;
• remoteness of the gas pipeline;
• availability of an electrical network of the required power;
• heat loss through walls, windows.

In order to understand whether gas or electric heating is better in terms of economy and quality of heating, a number of factors should be taken into account:

Thus, it is impossible to say for sure which is better - a gas or electric boiler for heating a cottage. It all depends on technical characteristics the building itself and a number of other points.

Electric gas boilers

Sometimes, in order to ensure the smooth operation of the heat supply system, an electric boiler is installed in parallel with a gas boiler, which significantly increases the reliability of heating. How two boilers work in one heating system can be read. Recently, combined boilers have also appeared on sale, which can operate on both gas and electricity. Such units are universal and do not stop functioning in the event of power outages or accidents on gas mains.

Of course, there are still not so many models of combined boilers as there are gas or electric ones. It should be noted that gas-electric heating boilers have a rather complex design. Having bought such a device, you will definitely need to prepare a separate room for it.

Electric gas heating boilers are equipped with a powerful gas burner. If the electric mode of operation starts, the water heating heating elements begin to function. The devices are equipped with a program, thanks to which the transition from one mode to another is carried out automatically. There are also models on sale that are capable of simultaneously using both sources: both gas and electricity.

A gas-electric boiler is ideal for areas with severe frosty winters. After all, the device is equipped with an option that protects the coolant from freezing.

The electric gas heating boiler differs in the following advantages:

How much do electric gas boilers cost?

Gas-electric heaters automatically adjust the on and off mode, thus maintaining the required room temperature and spending resources as economically as possible. But the cost of such equipment cannot be called cheap.

The average price for a gas-fired electric boiler is about 70% higher than for gas-fired analogues.

So, a universal floor-standing boiler CTC 2200 Trio can be purchased for about 500,000 rubles. True, the installation of a combined boiler pays off quickly enough - in just 2-4 years. As a result, the economic efficiency from the organization of a heat supply system with an electric gas boiler is quite a decent amount. More details about combined boilers can be found in our article.

Final choice

Thus, today the choice of boiler equipment for heating a house is quite wide. There are electrical, gas and combined appliances. This is not to say that a particular type of boiler is more profitable. After all, everything depends on a number of factors.

It should be noted that gas-electric boilers are the most advanced and technologically advanced.

They differ in a rather complex design. Such units make it possible to expand the services received, efficiently and economically heat a country house in an autonomous mode. Of course, their cost is high. But the acquisition and installation costs pay off quickly.

Electric-gas boilers are heating units with the ability to operate on electricity and gas. The assortment of the TeploExpert online store offers heating equipment of the brands CTC, Buderus, Beretta, Proterm, Viessmann, Ferroli, representing domestic and foreign manufacturers. When buying from us, you get a full range of services for the delivery and installation of your boiler.

Advantages of combined gas-electricity boilers

Combined gas-electricity boilers have many advantages, including:

Versatility. With such heating equipment, you can choose the fuel that is convenient for you to use right now. Gas-electric boilers are easy to switch from electric boiler mode to gas, and vice versa.

Efficiency. The devices consume a small amount of energy to generate a large amount of heat. This testifies to the high productivity of gas-electric boilers, expressed in the efficiency, which is 87-97%. Thanks to this, you can significantly reduce funds for payment for gas and electricity services.

Profitability. The price of combined gas-electricity heating boilers is quite high, but their purchase is a profitable investment. Due to the low price of gas, their purchase will soon pay off.

Environmental friendliness. Since gas-electric heating boilers do not emit harmful substances, their safety for human health and the environment is guaranteed.

Variety of combined gas-electric boilers

The assortment of our online store includes gas-electric boilers:

Single and double circuit. A distinctive feature of units with two circuits is the ability to simultaneously heat the room and heat the hot water circuit. Thus, you can save money and space. To heat the room, it will be enough to buy an electric gas boiler with one circuit.

Atmospheric and turbocharged. For forced circulation heat carrier we recommend you a turbocharged electric gas boiler. If the natural circulation of the coolant is sufficient, then purchase an atmospheric unit.

With and without a boiler. For the consumption of hot water in large volumes from several water points (sink, bath, etc.), we recommend buying an electric gas boiler with a built-in boiler. With a moderate consumption of hot water, the unit without a boiler will suffice.

Combined heating boilers are increasingly used in country houses today. This is due to the fact that there is no gas pipeline in dachas and private houses outside the city, and problems with electricity can often appear. That is why people find such a solution to this issue as a modern combined heating system. Combined boilers operate on different types fuels - electricity, firewood, gas, diesel. This equipment ensures the reliability and independence of heating from such frequent occurrences for owners of suburban real estate as failures in the supply of electricity and gas.

Who should consider buying and why?

In a private house, heating must be installed and working, even if you come to it infrequently and for a short time. A reliable heating system creates comfortable temperature conditions for a person in the rooms, and also protects the building itself from severe Russian frosts - if a private house will not be heated for the whole winter, then there is a high probability that it will freeze and cracks will begin to form on the walls. All this will put before the need to carry out repair measures, which imply not only a waste of your time, but also additional financial costs.

Combined boilers, which have recently appeared on sale, have already gained high popularity among owners of suburban housing. In order for the boiler to serve, as they say, "faithfully" for a long time, it is necessary to design and install the system during the construction process. For design, you will need to devote time to preliminary calculations and measurements of housing.

When making calculations, you must take into account such parameters as the height of the ceilings, whether there is thermal insulation, how thick the walls are, and what material they are made of. When the calculations are completed, a project is drawn up - a diagram of the future heating system, which indicates the places where the combined boiler and heating radiators will stand, the location of the pipes. It is worth noting that only high-quality materials and equipment should be used in the installation of heating, because the heating system is installed for a long time, and everything needs to work "like a clock" for a very long time.

Combined boilers are much more preferable than conventional boilers. One of their most significant advantages is operation on several different types of fuel (gas, wood, electricity, and others). These devices are indispensable if gas is not supplied to a private house or there are power outages. The owners of the house have the opportunity to choose which fuel the boiler will be operated with, which is very convenient, for example, if electricity is used as the main type of fuel, and suddenly the electricity is turned off due to an accident - you just switch to gas, firewood or diesel ...

The choice of the boiler should be based, first of all, on the type of fuel on which it works:

• electricity;
• diesel;
• firewood and coal.

The most convenient and cheapest gas boiler to operate. But for it to work properly and stably, a pressure of 3.5 mbar is required. Sometimes the gas pressure may differ from that which the boiler accepts, and this means that you need to look after another device.

If it is not possible to supply a gas boiler, then attention is paid to electric and diesel options. As for the electric one, in terms of design and characteristics, it has much in common with gas. In order for it to work without interruptions, a constant high voltage is needed in the power grid, which is very rare in the private sector.

And in this case, the "helping hand" will reach combined heating, which are modern combined boilers. Today the market offers a large number of different models of such installations, and in this variety it is easy to find a device that would be ideal for each individual case.

Gas / diesel boilers deserve the greatest demand from owners of suburban real estate. But it is also often purchased a universal combined heating, which is "powered" by 3-5 types of fuel at once, for example, gas / wood / coal / electricity. For each specific case, one or another boiler model is more preferable, and all these nuances must be taken into account when choosing.

Advantages of combined boilers

This heating equipment has many advantages, the main of which are:

• no need to choose a single type of fuel;
• environmental Safety;
• high efficiency;
• the operation of the boiler is automated, and when there is a need to switch to another type of fuel, the device does it on its own (in accordance with the specified settings), without requiring direct intervention from the owner;
• the small size of the unit allows you to save living space;
• financial savings achieved through the choice of raw materials;
• the possibility of installing a boiler storage;
• the house will not stop heating if there is a failure in the supply of gas and electricity - heating will continue automatically;
• it is possible to connect simultaneously the underfloor heating system and radiators, thanks to the presence of several boiler circuits.

Combined boilers are a real find for owners of country houses. However, you need to be prepared for the fact that they will have to pay a slightly larger amount of money than for mono-fuel devices. However, the advantages provided by these units more than make up for their relatively high cost.

During the planning of heating, they try to provide for all possible nuances and factors. An important one is the type of ebb tide used. Therefore, in order to increase reliability and reduce the cost of maintenance, combined boilers for heating a private house have recently been increasingly chosen.

The relevance of the installation of combined heating boilers

The main difference from standard models of heating equipment is the ability to use several types of energy carrier. Modern houses can operate both on gas and on solid and liquid fuels. But models with built-in electric heating elements have gained particular popularity.

Heating country house combined boiler can be relevant in several cases. First of all, the choice is determined by the possibility of using several types of fuel and their cost. In some periods of operation of the heating supply, it will be beneficial to use firewood instead of diesel fuel. The same applies to natural and liquefied gas, electricity.

Combined universal heating boilers are installed in the following cases:

• Reducing the inertia of the heat supply... The initial start-up of electric heating will allow you to quickly heat the water in the system. Solid fuel or gas can be used to maintain its temperature at the desired level;
• Independence from power supply... Many foreign and Russian combined heating boilers have the ability to use a certain type of fuel without being connected to the mains - firewood, coal;
• Economical consumption... In the absence of the main energy source, combined gas heating boilers have the function of automatically switching to another type of fuel.

The main disadvantage that double-circuit combined heating boilers have is their high cost. This is due to the complexity of the design and the actual duplication of many components to maintain the full set of functionality.

Define optimal model to complete the heat supply of a house, you can read reviews about combined heating boilers. However, you should remember about their subjectivity.

Heating boilers gas-electricity

The most effective in terms of heating water for heating is electricity. The impact on the coolant occurs with a minimum delay, which entails a sharp increase in its temperature. Therefore, combined gas-electricity heating boilers are especially popular.

It is important to take into account the small dimensions of such a design. The main advantage of combined gas-electricity heating boilers is variability - the installation of several circuits (heat supply and hot water supply), the ability to connect to several heating systems.

The main advantages of combined gas-electricity boilers for heat supply are:

• Small size... The gas combustion chamber is small, and the heating element or other type of electrical heating device can be installed directly into the heat exchanger;
• Low power consumption... Such combined boilers for heating a private house mainly run on gas. Electric heating element turns on in the absence of gas, or for operational heating of water;
• Affordable cost... It is due to the absence of the need to make a separate combustion chamber, since the heating element is mounted in a heat exchanger.

In some models, when planning heating a country house with a combined boiler, it is possible to connect a boiler. This is true if the equipment does not have a secondary circuit for DHW.

In most cases, the power of heating elements is designed to maintain the required temperature level in the heat supply system, and not for permanent work... You need to pay attention to this when choosing Russian combined heating boilers.

Heating combined boilers wood-gas

The most economical types of energy sources currently are wood and gas. That is why it is recommended to use combined wood-gas heating boilers to organize heat supply for private houses.

Structurally, boilers of this type have two combustion chambers for each type of fuel. This leads to the large dimensions of the heating equipment. Depending on the functional features, combined wood-gas heating boilers can have one or two heat exchangers. In the first case, they are common to each combustion chamber. In double-circuit combined heating boilers, the DHW function is performed using one of the types of fuel.

For all combined gas heating boilers, before installation, it is necessary to correctly draw up permits. At the same time, the Management Company in the Technical Conditions will focus on technical properties namely the gas component of the equipment. It is important that in the design of combined boilers for heating a house, the characteristics of the solid fuel part do not affect the gas part.

There are two types of combined wood-gas heating boilers:

• With separate combustion chambers... These are mainly factory models with two circuits. One of them heats water for heating, and the second provides hot water supply;
• With a common combustion chamber... This is more true for self-made installations, when you need to minimize the cost of arranging heating a country house with a combined boiler. The standard boiler is fitted with a factory gas burner. If firewood is used, it is dismantled.

The latest models have the most controversial reviews about combined heating boilers. Basically, these are self-made structures in which the heat exchanger is not designed for high thermal effects during the operation of a gas burner. This is what causes the frequent failure of the boiler.

When choosing a gas burner for a solid fuel boiler, it is necessary to accurately measure the dimensions of the combustion chamber. They must match the dimensions of the gas burner.

Heating combined boilers wood-electricity

In the absence of the possibility of connecting to a gas main or organizing balloon heating, solid fuel boilers are most often used. They are non-volatile and have a fairly high power. However, for the unification of heat supply, it is recommended to use combined firewood-electricity heating boilers.

Structurally, they are in many ways similar to the gas models described above. The difference lies in the possibility of self-production of the combined. This work can be done without the involvement of socialists. It is enough to choose a heating element of the required power and install it in the heat exchanger of a universal combined heating boiler.

There are ready-made factory models on the market with a full set of required equipment. Unlike homemade boilers, the location of the heating element and its power are precisely calculated. The main indicator is complete operational safety. In addition to these indicators, it should be noted the following features of combined heating boilers for firewood electricity:

• Possibility of connecting additional devices... Often, manufacturers provide a contact part for connecting the heating element unit with a programmer or thermostat. Options for remote control of the boiler can be considered;
• Work reliability... In factory models, combined boilers for heating the house are mounted with special heating elements, which are not susceptible to breakdowns under large thermal effects from a solid fuel furnace;
• Maintainability... If the electrical part fails, you can replace it with a similar one yourself. Alas, combined gas boilers for heat supply in most cases do not have this function.

To select a combined boiler for heating a private house, firewood-electricity, you must first calculate the power of the heating element. Experts advise models in which this figure is at least 70% of the required for heating a private house.

The power adjustment of a solid fuel boiler is extremely slow. Therefore, if it is necessary to quickly change the degree of heating of the coolant, it is recommended to activate the electrical part of the equipment.

The device of combined furnaces for heating

Using brick ovens is a traditional heating method small house... But in this case, you can improve the standard design by making a number of changes. Currently, there are modern combined stoves for heating a house, which ensure the stability of the system and a high coefficient of efficiency.

The advantage of the brick construction is not only the possibility of using several types of fuel (wood, gas, diesel), but also the possible modification of the device.

In contrast to the heat supply of a country house with a combined boiler, several heat exchangers can be made in a furnace, a rough one can be equipped, and a boiler of indirect or direct heating can be installed. However, each such innovation will directly affect the dimensions of the structure.

Recently, the following modifications of combined stoves for heating a house have been made:

• Installing the hob... This is a classic way to improve functionality. In addition to heat supply, you can cook food on the stove;
• Burner installation... For this, you can use a gas or solid fuel burner. But it is best to use gas models, since with normal traction indicators they do not create an unpleasant odor in the room;
• ... By installing a tubular structure in the firebox, you can make a small but effective heating system for your home. It is necessary to take into account its great inertia - heating of water in combined stoves for heating the house and heating of water in pipes will be slow.

Even less often, you can find double-circuit combined heating boilers in furnaces. This is due to the small size of the heat exchanger. To provide hot water supply, it is best to install a tank for direct or indirect heating of water.

Regardless of the design of the furnace, before erecting it, you need to make a separate foundation that is not associated with the general house. This measure is necessary due to the large mass of the structure, as well as the chimney system.

Universal combined heating boilers

In some cases, it is advisable to use universal heating boilers, which provide for the use of not only two types of fuel. These include heating boilers, combined gas-wood-electricity, pellet models.

The defining difference that pellet combined heating boilers have is the presence of several combustion chambers. They are adapted for the use of a certain type of fuel - gas, diesel, firewood, etc. As additional measure an electric heating element can be provided, located in one or more chambers of the heat exchanger.

It is noteworthy that in many models of combined heating boilers, gas, firewood, electricity, the pellet burner is removable. Those. the combustion chamber for it can be used for another type of fuel. Most often it is gas or diesel. The conditions for the use of these energy carriers provide for the presence of forced air injection and a complex design of a heat exchanger for transferring thermal energy. These qualities are also characteristic of pellet combined heating boilers.

To operate multi-fuel heating boilers, the following conditions must be met:

• Stable power supply... It is needed for the operation of pellet combined heating boilers, gas and diesel burners. The exception is the use of solid fuels;
• Organization of fuel delivery to the boiler... The main problem in planning the installation of heating boilers for combined gas-firewood-electricity is the storage of energy carriers. For balloon heating, separate rooms are made or external steel boxes are installed. Diesel fuel is stored in barrels, which are connected to a special pumping station.

Before purchasing universal boilers for combined heat supply, you should analyze the feasibility of their use. Their cost is an order of magnitude higher than classic single-fuel ones. For this, a detailed financial analysis is made for each type of energy carrier.

When installing foreign and Russian combined heating boilers, you need to correctly calculate the diameter of the chimney. The thrust rating must meet the minimum requirements for each type of fuel.