Wall-mounted gas boilers with a closed combustion chamber. Heating boilers with a closed combustion chamber

Choosing a heating boiler is a rather difficult and painstaking task. Before making a final decision, you need to evaluate the capabilities of your premises and how you would like to heat the house. Let's talk about gas boilers.

Closed combustion chamber

Let's talk in more detail about the closed combustion chamber. Its operating principle is that the air, which is necessary for its normal operation, is absorbed from the street through coaxial chimney. Products processed in such a chamber are also thrown out into the street. Therefore, you can do just fine without any ventilation structures. Boiler with closed camera combustion has a number of significant advantages. These include:

• Safety, since all gas products are cooled when released.


• As for efficiency, this figure is also quite high. This becomes possible due to the fact that cold air warms up when entering the pipe.


• Boilers with a closed combustion chamber with a fairly high efficiency index can be called more environmentally friendly, since gas is burned better in them, therefore, emissions into nature are significantly reduced.
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• Comfort. When using such a boiler, the room is heated without any air pollution in the room. All combustion processes take place outside.

The conclusion beyond any doubt can be drawn as follows: using a heating boiler with a closed combustion chamber is the most optimal and safest option for an enclosed living space.

Floor standing boilers Protherm

Proterm floor-standing boilers are non-volatile, that is, they do not need to be connected to a 220V network. Its efficiency is up to 90%. The Proterm heating boiler can withstand different hydraulic modes, it is reliably protected from overheating. When purchasing it, you will not have to rack your brains over assembling its individual parts, since this type The boiler is already supplied assembled.

If there are any problems in the middle sections of the boiler, it is possible to simply replace them. As for the fuel on which this heating boiler can operate, it can easily operate as a liquefied gas, and on the highway. Proterm heating boilers have these most significant characteristics.

Korean heating boilers

It doesn’t matter which Korean brand you choose, as a result you will get a unit that is well suited for use in the Russian climate. And the following can be said about their quality indicators: they are very convenient to use, since they are equipped with numerous safety sensors.

As for the most common brands of Korean products, these include the following manufacturing companies: Kiturami, Rinnai, Daewoo, Hydrosta and Olympia. Many people call Korean heating boilers not durable and efficient enough, since their cost, of course, is much lower compared to other brands. This criterion should not be taken into account, since in most cases the wrong approach and simple illiteracy in installation issues contribute to the fact that the equipment fails.

German boilers

ATTENTION! Not all German boilers can withstand severe frosts. For example, an air temperature of -30 no longer allows them to function normally.

When choosing gas boiler There is a wide selection of both wall and floor models. Wall-mounted models immediately became the most popular. Such a boiler is quite small in size, and this is reflected in its cost. And not only the price speaks in favor of using such a boiler, but also its compactness and ease of use.

As for power, there is also a huge selection and adjustment possibilities. So, a boiler with a power of 9-30 kW will be quite enough to heat a room from 40 to 300 square meters. meters. Despite the fact that German quality can be trusted without any doubt, it is also worth remembering that boilers are very capricious in terms of the water they use - it must be sufficiently clean.

Having at least a small idea of ​​what heating boilers are closed combustion and having studied in sufficiently all the advantages and disadvantages of the boilers offered, you will be able to make the right choice.

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Modern heating boilers provide heating of buildings and structures, in particular city apartments, country cottages or dachas that are not connected to a centralized heat supply system from a thermal power plant. In addition to its main task, many devices (double-circuit) are used as a boiler, heating running water. "Garantkomfort.ru" offers its customers to buy a boiler for heating their home. In this case, you can take advantage of the opportunity to deliver the boiler in Moscow to the specified address.

Types of heating boilers

By fuel used:

• solid fuel - used in buildings not connected to electrical and gas networks. The fuel is charcoal, firewood or peat. To install such equipment, a chimney is required;
• gas - cost-effective devices with high efficiency, which use as fuel natural gas. A chimney is required for correct operation;
• electric - modern, environmentally friendly boiler models for private homes that do not require a chimney. They are characterized by high energy consumption, so they are often backup source heat.

By number of circuits:

• single-circuit – only for space heating;
• double-circuit – to provide a private home with heat and hot water.

What to look for when choosing

Location. Available in wall mounted and floor options, each of which has certain advantages. The first ones are compact, which allows optimizing the use of free space in the room. They are fully equipped and do not require the purchase of additional items. The latter are characterized by high performance and power indicators, which is important for buildings with large area. In this case, the price of heating boilers for a private home will be slightly higher.

Power. Heating installations can have different power, which must be taken into account when choosing equipment for your living space. The footage of the premises and the height of the ceilings should be clarified. Garantcomfort.ru specialists will help you select a heating boiler in Moscow - to do this, contact them by phone listed on the website.

Performance. When choosing a double-circuit heating boiler, you should determine the number of consumers. The recommended performance indicator of the water supply circuit depends on this. So, this parameter for a family of three will be about 10 l/min for one tap. To be able to use two sources of water at once, you should install a boiler for heating your home with a capacity of at least 15 l/min.

Security and automation systems

Built into modern heating boilers a large number of various systems security. Among the most common are the following:

• overheating protection – this module stops heating the coolant when the temperature reaches a critical value;
• Freeze protection – monitors the temperature of the coolant, preventing it from freezing;
• draft control system – checks the presence of draft in the chimney. If backdraft occurs, turns off the heating to prevent combustion products from entering the room;
• water pressure control – controls the pressure in the heating system using a pressure switch.

You can check prices for heating boilers for a private home by calling the phone number listed in the “Contacts” section.

Boiler equipment for the heating function is considered the most productive and efficient. Unlike classic home heaters, such units for the most part can form the main heating system, and not just an auxiliary one. But there is also downsides with such equipment. It costs more and requires more energy. From point of view economic feasibility, optimal solution will become a gas boiler with a closed combustion chamber, which also differs high degree security. This is a modern variation of the traditional combustion system, but with a number of design modifications and improvements.

Boiler structure

The general structure of the unit is generally similar to models operating with an open firebox. In its simplest modification, a single-circuit gas boiler with a closed combustion chamber has three components. This is the camera itself and its infrastructure, two expansion tank and storage capacity. To this it is worth adding the pipeline infrastructure, which provides communication between these elements and at the same time can act as a conductor of heat throughout the house.

The basis of the boiler block is a burner, which operates not from oxygen in the room, but from an air supply from the outside. This explains the high reliability of this equipment. Depending on the requirements, a double-circuit gas boiler with a closed combustion chamber, additionally equipped with units for providing hot water supply, can also be effective. Such models are more expensive and more difficult to install, but they are more productive and functional. To provide a similar task of hot water supply due to single-circuit boiler required additional installation boiler, which will be more expensive.

Principle of operation

Most often, such boilers are used to service two systems. First of all, this is a heating function, which is performed by both single- and double-circuit systems. The second option is also capable of providing DHW. In both cases, the basis of the boiler is a flare gas burner device. It operates from a central gas pipeline or from a tank filled with liquefied fuel. A modern gas boiler with a closed combustion chamber is equipped with an electromagnetic valve element that automatically stabilizes the function of the unit. Since gas equipment is considered the most dangerous in terms of everyday use, developers of closed burner models strive to minimize risks in all aspects, and the presence of valves is one of the main safety features. After the burner has completed its heating task, the water is sent through the circuits to the appropriate tanks, or is distributed for circulation throughout the house.

Combustion product removal system

In boilers with a traditional combustion system and natural exhaust, smoke removal from their gas burner device is provided through the inner surface of the heat exchanger. This function is to some extent regulated by a draft stabilizer connected to the smoke exhaust duct. IN latest versions units, this mechanism has been improved. So, even a budget single-circuit fan can be equipped with a powerful exhaust fan with a pressure sensor. The safety mechanism can stop the fuel supply to the burner if a violation of the ventilation function is noted.

Automation

Automatic systems are implemented to provide two types of functions - control and safety. In the first case, sensors and controllers set the optimal, from the point of view of the user program, system operating parameters. In particular, they set the desired ignition mode, control the power of the burner, adjust the volume of water for circulation, etc. As for safety systems, a gas boiler with a closed combustion chamber in this part is mainly protected from dangerous situations that may arise during the process operation. For example, special sensors can turn off the burner if the flame goes out. Even if deviations in the operation of the flame control system are detected, the protective sensor can shut down the boiler. The same applies to cases of insufficient coolant flow, in case of disturbances in smoke removal, in case of overheating of the unit, etc.

Varieties

The differences between single and dual-circuit models, but this equipment also differs in the type of placement method. In particular, floor-mounted and wall-mounted units are popular. If you plan to purchase a powerful and productive assistant for servicing hot water and heat big house, then it is better to choose a floor-standing gas boiler with a closed combustion chamber with a large tank. Installation on strong screed or another fundamental basis presupposes the physical stability of the operation of the device - accordingly, there is no point in saving on the operating potential of the equipment.

Wall-mounted models are beneficial because they save space, although some versions can also cause a lot of problems in terms of installation. It all depends on the model of the unit and local finishing materials. In addition, a wall-mounted gas boiler with a closed combustion chamber rarely has high power - most often these are single-circuit models. Therefore, this option will be beneficial in the heating infrastructure of a small private house or one room.

User manual

To begin with, it should be noted that the boiler should be located only in rooms intended for this type of equipment. This does not have to be a technical room - the unit can be installed in a bathroom, kitchen, utility room or garage. The main thing is that the conditions in this place do not contradict the rules fire safety. You can use a gas boiler with a closed combustion chamber when all heating and water supply circuits are connected. User interaction with the equipment is realized through special relays and control panels. Typically, these parts are equipped with ergonomic regulators with sensors and indicators of the operating parameters of the boiler. For example, the volume of coolant, temperature, burner operating mode, etc. are indicated.

Manufacturers and prices

There are many worthy offers on the domestic market from companies Bosch, Baxi, Protherm, Vaillant, etc. For the most part, these are wall models, characterized by modest dimensions and at the same time high performance. For example, the Gaz 7000W modification from Bosch has a power potential of 35 kW, which is enough to serve homes with total area up to 350 m2. In terms of cost, of course, this equipment is not the most attractive. For example, a gas boiler with a closed combustion chamber, the price of which is 20-25 thousand rubles, is considered budget. Reputable versions from major brands are estimated at 40-50 thousand. But operating practice shows that these costs are justified in the long term.

Conclusion

Usage gas equipment provides several significant advantages. Firstly, gas consumption with access to a central supply line will be inexpensive - at least compared to electrical equipment. Secondly, even a low-power wall-mounted single-circuit gas boiler with competent organization circuit diagram will be able to provide heat to a medium-sized house. Again, if you correctly calculate the circulation, then the need for additional point sources of heating may disappear. But for big houses Still, it is advisable to turn to dual-circuit complexes with capacious storage devices. This is multifunctional equipment that will solve several problems in maintaining a private household.

Select a boiler for gas system heating is very difficult. After all, there are many equipment options on the market, among which it is easy to get confused. The characteristics and parameters of modern equipment allow you to select a device according to individual parameters. For example, what type better camera combustion, open or closed. Let's look into this issue.

Open combustion chamber in gas boilers

Gas heating equipment with an open combustion chamber is a classic device with natural draft. That is, the air necessary for the combustion process is taken directly from the room in which the boiler is installed. The fumes and combustion products are discharged through a special opening. Experts recommend installing a chimney for safe use of the equipment.
A gas boiler open type combustion can be installed in any room. But in living rooms it can lead to decreased oxygen levels and stuffiness. And when there was a strong burning, there were also cases of poisoning by combustion products. That is why it is recommended to install such equipment in separate rooms. Before purchasing such a boiler, it is worth preparing a separate room for its installation. This is the main disadvantage of this type of equipment. It is not bought so often, although it costs much less than its analogues.
The use of boilers with an open combustion chamber will require not only separate room, but also the installation of a vertical chimney and ventilation system. A kind of mini boiler room will provide safe use gas boiler in the house.

Closed combustion chamber in gas boilers

Gas equipment with a closed combustion chamber has its positive aspects:

• installation of the boiler does not require a special room. It is enough to allocate a few meters of space for the boiler. This is very important, especially for small country houses;
• the equipment is classified as a high-security device;
• very easy to install;
• has an acceptable cost.

But to be sure of its safety, it is worth understanding where the air is taken from to support the combustion process and where the carbon monoxide goes. Naturally, if you have technical knowledge, you will be able to understand the technological characteristics yourself. If not, we will tell you. So, air is supplied and discharged through the chimney. True, it does not require the installation of a vertical chimney. Boilers with a closed combustion chamber are completely safe for use in the country.
It is worth noting that when using a boiler with a closed combustion type, it is still recommended to remove it horizontally using a powerful fan or cooler. For the ventilation system to function flawlessly, it is necessary to ensure a constant supply of electricity. Boilers closed type have significantly highest coefficient Efficient, but cannot be used without an electrical connection.

Coaxial chimney is a necessary element of boiler performance

A coaxial chimney is a pipe-in-pipe structure. This device provides the supply of air necessary for combustion from the street and the removal carbon monoxide. For air supply provides outer pipe, and for the removal of combustion products - internal.
The main advantages of installing such additional element are:

• safe use heating system. When passing through a coaxial chimney, the fumes cool down and become absolutely harmless to the environment;
• increasing the CPT coefficient, at which the fuel is almost completely burned, converted into thermal energy;
• significant fuel savings. The boiler consumes significantly less quantity and ensures its complete combustion;
• the ability to install in residential premises, since the equipment does not emit fumes.

The disadvantages of such equipment include the cost, which is an order of magnitude higher than similar equipment with open combustion, and the presence of noise. The chimney of a closed combustion chamber reduces fuel consumption, thereby reducing heating costs.

Equipment on which an additional chimney can be installed

The coaxial type of chimney can be used with turbocharged and condensing boilers. The chimney pipe is ideal for parapet devices. It can be mounted on a boiler with atmospheric burner. But with such an installation, it is worth remembering that only chimneys made of stainless steel can be installed on such boilers.
The coaxial chimney system can be used for double-circuit and single-circuit gas boilers, regardless of the type of combustion chamber.

Types of pipes for coaxial chimneys

The choice of coaxial pipes should be approached with special responsibility. After all, many boiler manufacturers produce non-standard equipment that requires the same materials.
Universal pipes are made from:

• plastic. Today two-channel plastic chimneys made from heat-resistant material. Such pipes can withstand temperatures of more than 200 degrees. Their advantages are low weight, reasonable cost, and easy installation. The disadvantages of plastic chimneys are their fragility and limited opportunity use with many gas boilers;
• of stainless steel. This material can withstand temperatures up to 550 degrees. Such products are produced in two types: non-insulated, with a simple design, and insulated with high aerodynamic properties. Such a chimney can last for a long period, which is more than 30 years.
• aluminum These designs are not used as often, since they do not have such high technological characteristics than stainless steel products and excellent appearance than plastic chimneys. But nevertheless, they are preferred by many summer residents, since in such places they ideally fulfill their purpose.

Possible difficulties of closed combustion equipment

When installing the boiler, it is worth remembering that gas devices for heating with a closed combustion chamber requires special care:

• a kind of lubrication of units, Maintenance, inspection of the turbine will significantly extend the operational period of operation;
• replacing the turbine, if necessary. Like any moving mechanism, it is subject to wear and has a certain period of use;
• Low temperatures may reduce the functionality of the equipment. Freezing in the fuel combustion area can damage the device. It is almost impossible to eliminate this phenomenon. But for trouble to happen, the frost must be very strong;
• providing electricity. A turbine simply will not work without a connection to a power line.

Requirements for installing a coaxial chimney

To create safety of use, the legislator regulates the installation of a coaxial chimney. These requirements must be followed as they reduce existing risks to a minimum:

• the coaxial chimney must be located at a height of at least 2 meters from the base of the house;
• the hole through which the chimney is brought out should be several centimeters larger diameter chimney pipes;
• the chimney can be created horizontally and vertically;
• it needs to be serviced annually.

Horizontal installation of a coaxial chimney

The horizontal arrangement of the chimney provides for the pipes to be led out through the wall of the house. This is the simplest option for installing a heating system element in a country house. For horizontal installation required:

• calculate the height of the pipe. This is the size from the outlet pipe of the gas equipment to the hole in the wall of the house. For example, for boilers installed on the floor, it is at least 1 meter. It is strictly forbidden to lead the pipe directly - from the pipe to the street.
• calculate the turns and change the drawing if necessary. According to the requirements, the number of knees cannot exceed 2 turns;
• calculate the length of the horizontal section, which should not exceed more than 5 meters. To connect the sections, it is necessary to use a special coupling, which will allow for a smoke outlet if necessary. The use of silicone glue and sealants is strictly prohibited.

For creating favorable conditions operation in winter time It is recommended to insulate the horizontal chimney. This will eliminate the formation of condensate and significantly increase the service life of the pipes.

Vertical installation of a coaxial chimney

Installation of a coaxial chimney provides for the exhaust of combustion products in a vertical direction. Maximum length such a chimney is no more than 7 meters. This chimney option can be used for houses with a solid foundation and walls. But for a dacha, this option is used very rarely, since the horizontal method is much simpler and safer.


When installing modern equipment, it is also necessary to adhere to the manufacturer's recommendations. The manufacturer of gas boilers must indicate the installation principle of the heating system. It is almost impossible to make a mistake if you follow professional recommendations.

Problems autonomous heating and hot water supply can be solved using this specialized equipment. A modern gas wall-mounted double-circuit boiler with a closed combustion chamber performs its functions with rational consumption of energy resources. It is well protected from temperature rise and other negative impacts. This technique does not require careful control by the user. If you follow basic operating rules, it will retain excellent consumer characteristics for many years.

A modern domestic boiler contains complex mechanical components and electronics units

Gas wall-mounted double-circuit boiler with a closed combustion chamber: principles of operation and selection criteria

If when purchasing a complex technical equipment If you pay attention only to the cost and basic characteristics, it will be difficult not to make mistakes. Any attentive person will find it useful detailed analysis. It should include familiarization with the principles of operation, research of various modifications and coordination of parameters with a specific room and operating conditions. This is exactly the procedure used to consider gas wall-mounted double-circuit boilers with a closed combustion chamber.

What is this equipment for?

This type of technology is universal. It provides water heating in two different circuits. can be divided into several separate sections and connected through a plumbing “comb” in parallel.

Thus, after installing the appropriate equipment, it will be possible to leave only the input line with cold water. This is not only convenient for users. Centralized systems heating supplies operate generally less efficiently. They heat up environment. To increase productivity, it is necessary to better isolate the routes, which in turn increases the cost of the engineering system. To this should be added the optionality of domestic maintenance services and the increased costs of municipal repairs.

All general economic losses in some form are translated into payments to producers. This explains why investing in a high-quality gas wall-mounted double-circuit boiler with a closed combustion chamber pays off over time.

What is the difference between a closed combustion chamber and an open combustion chamber in gas boilers?

The general principles of operation are the same for all types of double-circuit boilers. This picture shows the main elements of the standard design.

This technique works as follows:

• Cold water enters the heat exchanger of a closed chamber, where it is heated by the flame of a gas burner.
• Then it not only goes to consumers, but is also used to heat the liquid in the second circuit.
• To ensure fluid circulation at the required speed, they are used.
• Since the liquid expands as the temperature rises, a special compensating tank has been added to the standard equipment.
• The sensor system is used to quickly obtain information about the operation of equipment, automated adjustments and blocking of dangerous modes.
• In addition to the elements indicated in the diagram, boiler designs include valves for air removal, mechanical and electronic settings, control, and indication devices.

Designs with an open and closed combustion chamber of a gas boiler are distinguished by the method of supplying air and removing combustion products. In the first option, traction is provided naturally. An obvious disadvantage is the consumption of oxygen from the room atmosphere. To recover the corresponding losses, a sufficiently good .

Note! IN winter period frequent ventilation worsens economic indicators and creates the preconditions for the occurrence of colds. It is for this reason that experts recommend installing equipment of this type in a separate technical room, boiler room.

The differences between closed chamber techniques are given below:

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A special element that allows you to save up to 20% of fuel resources. What kind of regulators there are, what to look for when choosing how to connect the device to the boiler, we will look at in the article.

Modifications of wall-mounted gas heating boilers: which one is better for a city apartment

To improve performance, classic circuits are modified as follows:

For standard city apartments, fairly compact wall-mounted models are better suited. Floor modifications – more. They are used for heating large objects with an area of ​​more than 150 square meters.

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The principle of operation, advantages and disadvantages, popular models and prices are in a special publication on our portal.

Purchasing a double-circuit wall-mounted gas boiler: how to choose the right model

The table shows data on current market offers.

It is difficult to find data to determine the rating of wall-mounted double-circuit gas boilers. The differences in model parameters are too great. It makes sense to select equipment to solve specific problems. Comparison of several options must be objective. So, the first option is cheaper. But the standard package does not include a pump to move water.

Installation and operation

The installation of equipment of this type must be approved by the municipal service gas industry. It is trusted by specialized specialists of an authorized service center. This will allow you to maintain the factory warranty and avoid making an accidental mistake.

The boiler is mounted at a distance from the walls and heating devices. Certain standards limit the slope of the chimney pipe and the method of connection to the power supply network. Some service companies provide regular equipment inspection services. Cleaning heat exchangers and other routine measures will help extend the life of the equipment and prevent emergency situations.

To apply open chamber combustion was as efficient as possible, the equipment is installed in the boiler room. A separate chimney is required to remove combustion products. Such a solution for equipping a standard city apartment will be associated with increased costs. In some situations it is completely impossible.

It is much easier to install a boiler with a closed chamber. Its installation can be approved by official authorities without much difficulty. The work operations themselves also don't cost much.

When choosing, you should pay attention to modern models. It provides better performance and interfaces well with the latest systems management and control category " smart House" For accurate calculations according to required power In addition to the volume, the insulation characteristics of the premises should be taken into account. Comprehensive analysis gas wall-mounted double-circuit heating boilers should contain prices and consumer reviews.

Installing a gas boiler (video)