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Gas boilers for heating a private home: how to choose a functional and powerful unit. How to choose a gas boiler The best gas boilers for the home

The classification of these units is quite complex. Taking into account the peculiarities of their installation and some restrictions associated with the specific heating of apartments in townhouses or small cottages, the most important parameters are the following.

1. Type of fuel

When choosing a model for an apartment or private house, you should focus only on gas boilers .

All others (solid, liquid or combined) are clearly not suitable for them. The reasoning is simple - any “fuel” (solar, pellets, etc.) must be stored somewhere. The option with an electrical device is also eliminated. In addition to installation difficulties (separate line, RCD, AV or differential automatic), there are two more problems.

• Grounding. How to connect the boiler to the corresponding bus? The services of a specialist will be required, and practical implementation (depending on the type of power supply) will be quite expensive.

• This heating method is not economically viable. Taking into account even the minimum power of the boiler installed in the apartment, the meter will add up a very tidy sum in a month.

2. Engineering solution

2.1. By installation method

There is no choice here - only a wall-mounted boiler. To install a floor-standing model, a separate room (furnace room) is required, as well as compliance with a number of requirements for the placement of gas equipment. For townhouses, small cottages, duplexes, low-rise apartment buildings - not an option.

2.2. By power

The most common advice that you can get from a store manager is to focus on the ratio of 1 to 10 (boiler power, in kW/apartment area, in m2). But is it really that simple?

• None technical device will not be able to work for a long time at the limit of its capabilities - breakdowns are inevitable.
• No matter how well a home is insulated, it is impossible to reduce heat loss to zero.
• The intensity of heating is influenced by the material of the walls and the position of the apartment in the house (whether it is corner or not and a number of other factors).

Therefore, when choosing gas boiler meaning design power(according to the given formula) should be increased by 30 - 35%.

2.3. By type of combustion chamber

It can be open or closed. Here you need to take into account the specifics of the structure.

• With open It is much easier to install a boiler in an apartment with a camera - you just need to connect its pipe to the general house smoke exhaust duct. Some disadvantage of this solution is that by taking air from the room, it “dries” it somewhat. But this is the best option for a gas boiler, and regular ventilation of the home eliminates this disadvantage.

• Closed the chamber involves the intake of air (to ensure the combustion process) from the outside. This means that you will have to hollow out the wall and install an air duct elbow (or a coaxial chimney). How rational this is and whether it is possible in principle depends on the type of building. Well, if a boiler is chosen to replace a boiler that has exhausted its service life, with an open chamber, it is definitely not suitable - the additional installation costs will be too significant.

2.4. By number of circuits

This is not difficult to decide. If your apartment or cottage has an instantaneous water heater ( geyser), one is enough. But if it is necessary to provide both heating and hot water supply, then it is advisable to purchase a double-circuit boiler for a townhouse or private house, although it is more expensive.

Everything else is secondary and at the discretion of the buyer. For example, type of control, presence of a remote control, number of options in the menu, form, color scheme and so on.

The best models of gas boilers for small areas

When purchasing a wall-mounted modification, preference should be given to imported units. They are fully equipped with everything necessary, and the only thing they require is a proper connection. It is undesirable to install domestic gas boilers in apartments and low-rise buildings - there are complaints about the functioning of the DHW circuit of the units, and some things will have to be purchased additionally. For example, an expansion tank.

Wall-mounted heating devices under the brands Bosch, Vaillant, Protherm, Lemax (entirely made from imported components), Baxi are in great demand.

Gas boilers are widely used heating appliances. Heat is released by burning natural gas (methane or propane-butane), and its amount is usually sufficient to heat water for everyday needs. Those people who decide to buy such a device always have a question about which gas boiler is better. To make a choice, you need to know the features of these devices and their types. You can see what modern gas boilers look like in the photo.

Advantages of gas boilers

Today, gas appliances are the most common and are used in many private homes.

There are several reasons for this popularity:

• ease of use - after installation, no regular maintenance is required Maintenance;
• efficiency - gas is considered one of the cheapest sources of energy;
• possibility of work automation;
• availability and variety of types - among a wide range of models, you can choose exactly the option that suits both your needs technical specifications, and in terms of cost.

It is impossible to say unequivocally which gas boilers are the best, because everything depends on the situation and needs of the home owners. When choosing boilers, you need to pay attention to various characteristics– in this case, it will be possible to choose exactly the model that takes into account the characteristics of the housing.

Power, which gas boiler is better

The main characteristic Any heating device is power. should be done based on the area of ​​the house. Typically, for every 10 “squares”, 1 kW of power is enough. Thus, to heat a household with an area of ​​100 square meters, you need a 10 kW boiler.

However, such a calculation allows only to approximately calculate the required power of the device, since it is also necessary to take into account the level of heat transfer and heat loss (the presence of a basement, the material and thickness of the walls, glazing, ceiling height, the quality of thermal insulation - all this affects the heating efficiency). Individual needs also matter - some people feel comfortable at 20 degrees, while others prefer to be in a warmer room.

If you have doubts about what you can do yourself correct calculations, then it is better to call specialists who will take into account all the features of the house.

Power adjustment

The power of heating boilers can be adjusted.

Depending on the ability to control the process, gas appliances are divided into:

• single stage;
• two-stage;
• with smooth adjustment.

The best gas boilers have smooth adjustment - this allows you to change the power depending on the air temperature, which allows you to reduce gas consumption (more details: " ").

Single-stage heating units have only one power level and are the cheapest. Two-stage have two power levels. If possible, it is better to buy more expensive boilers with two-stage or smooth adjustment - this will allow you to maintain a comfortable environment in the room.

In the case of using single-stage boilers, in the off-season it will be difficult to create a cozy atmosphere in the house - it can be hot with the boiler on, and cold without heating.

Wall-mounted and floor-standing gas boilers - comparison

Depending on the type of mounting, there are the following types of gas boilers:

In addition, they are much easier to install than floor-mounted ones. However, it should be borne in mind that their power is not enough to heat a large area, and their service life is shorter due to the fact that steel or copper, rather than cast iron, is used to make the structure lighter.

Popularity wall mounted appliances received thanks to safety, ease of use, modern design and compact size. Also, recently, wall-mounted gas boilers have begun to be installed not only in private houses, but also in apartments where floor structures cannot be placed (more details: " ").

But if a heating unit is purchased for a private home, then it is advisable to opt for a floor-standing model. A comparison of gas heating boilers clearly demonstrates the advantages of floor-standing appliances. They should be installed in a separate room, converted into a boiler room by creating ventilation and a chimney (more details: " "). As a result, heating will be highly efficient and safe.

Single-circuit and double-circuit boilers - types

As for what types of gas heating boilers there are, there are single-circuit and double-circuit models.

If you need a large volume of hot water, then it is better to buy a boiler with a built-in boiler, having first figured out which gas boilers are best for a private home. If you need a little water (for example, to wash dishes and take a shower), then the best solution would be a device with a flow-through heat exchanger.

In wall-mounted boilers, water is heated only in a flow-through water heater; a built-in boiler can only be present in floor-standing structures. But having chosen a similar model, you must obtain permission for installation and further operation of the boiler (read: ""). You can also connect an indirect heating water heater to the device - in this case, you can easily solve problems with hot water supply.

If you compare gas heating boilers, you cannot definitely say which is better - single-circuit or double-circuit. To decide, you need to find out whether it is enough to simply heat the house or whether it would not be superfluous to also provide for all household members hot water.

Natural and forced circulation

Gas boilers can have natural or forced draft. In devices of the first type, the combustion chamber open type, and also uses an atmospheric burner. In these models, air is taken directly from the room, and combustion products exit due to natural draft.

Of course, for something like this heating device A special room is required for installation so that the health of the residents of the house is not harmed.

Forced draft boilers use turbo or pressurized burners, and the combustion chamber is closed. The air is taken either from another room (this option is rare) or from the street. Combustion products are removed through small diameter air ducts using a built-in fan. Of course, such devices can be installed in any room. The best heating boilers gas for apartments - with forced draft.

It is believed that atmospheric burners are more practical, work longer and are quieter, but forced draft boilers do not burn oxygen in the room. Thus, it is pleasant to be in a heated room. As for forced-air burners, they are not so sensitive to pressure changes.

Condensing and convection boilers, which is the most reliable?

According to the type of use of the energy received, devices are divided into two types:

• convection;
• condensation

Traditional convection boilers use only gas combustion energy. Such models also have several advantages, despite the fact that the energy received is not fully used. These include simplicity of design, ease of installation and maintenance, and low cost of the models.

Condensing devices also use the energy of the transition of fuel from gaseous to liquid state. Such boilers are more expensive than conventional units, but they have higher efficiency. These types of gas heating boilers are equally in demand; the choice depends only on what you plan to save on - on the cost of the device or on the fuel that will be used in the future.

Since condensing boilers have higher efficiency, they are very popular in European countries. They allow you to save a lot on fuel, so it pays off quickly.

Ignition and thermostat features

There are boilers with electric ignition and pierre ignition. In devices with electric ignition, starting occurs automatically. Such models are energy dependent, so they are not recommended for homes where there are frequent power outages. The fuel combustion process in boilers with piezo ignition is started by pressing buttons (read also: " ").

Can be used in devices different types thermostats. The standard device performs only one function - maintains the set temperature (more details: " "). Programmable thermostats have a number of additional features. For example, you can set the temperature for several days, change it different time days. All these functions allow you not only to save on fuel, but also to maintain comfort in your home.

The most expensive are devices with thermostats, which, using a special sensor, measure even minor fluctuations in the temperature outside and, depending on this, regulate the power of the unit.

Gas boiler heat exchanger material

In order for the purchased device to be of high quality and durable, when choosing, you need to pay attention to the material from which the heat exchanger is made.

The most reliable gas boiler is cast iron. Despite the fact that cast iron products are sensitive to temperature changes, they last for at least several decades. Since cast iron boilers have heavy weight, they are found only in the floor version.

Steel structures have less weight, and their cost is low. But at the same time, they are susceptible to corrosion and, accordingly, are not able to last long. For this reason, they are not the best option.

Copper boilers are resistant to corrosion and can also be wall mounted due to their light weight. Such models are considered the best - they are easier to install than cast iron, but at the same time they are durable.

Manufacturers of gas boilers

Currently, there are many manufacturing companies heating equipment. Therefore, it is not surprising that the question often arises about which brand of gas boiler is better. Devices from German companies (Villain and Wolf) are considered the most reliable, durable and of high quality, but they are quite expensive. Italian gas boilers are no less high quality, and they also have an affordable price.

As for whether foreign technology is really better than domestic products, this is not always the case. But as far as gas boilers are concerned, there is no doubt about the correctness of this statement - imported appliances turn out to be more reliable and easy to use.

When choosing a gas boiler, you need to pay attention not only to its price, but also to its performance characteristics and quality. It is better to spend more money on purchasing a high-quality, efficient and durable boiler than to replace it soon.

When choosing, you need to take into account the following characteristics of boilers:

• material of manufacture;
• number of circuits;
• type of thermostat and ignition method;
• installation option (floor or wall);
• number of power levels;
• type of energy use (convection or condensation).

Most often, gas boilers are used to create autonomous system heating in private houses, in apartments they are rare. The popularity of such equipment is due, first of all, to the low cost of fuel and the boilers themselves.

But at the same time, we must not forget that natural gas is dangerous looking fuel, and to install gas equipment you will need to obtain the appropriate permit. In addition, any heating device, operating on natural gas, it is better to place it in a separate room with good ventilation and a chimney.

To ensure that it is always comfortable to be in the house, the boiler must also be equipped with a thermostat that allows you to change the degree of heating depending on the air temperature.

Which gas boiler is better, watch the video:

Let's look at the variety of gas boilers. What should you ask the seller first? And what will he try to “smuggle in”? What is it better for private home owners to give up, and what should they strive for?

Let's start choosing a boiler for a home by considering the insulation of the building. What is available already significantly influences the choice or must be changed.

What sellers sell and buyers shouldn't take

Having bought a “slightly different” gas boiler, home owners then speak out as follows.

• The biggest criticism subsequently comes from savings on brand reliability. Although breakdowns of gas boilers do not happen often, nevertheless, before purchasing, it is worth understanding which manufacturers have been on the market for a long time, and what they are. What can you buy in a specific store? In terms of reliability, products from concerns from Germany, Italy, Slovenia, Japan and Korea are the leaders.
• Significant criticism is caused by savings when creating a hot water supply based on a gas boiler. After all, you will have to use hot water all the time. “I should have paid a little extra and got this one... with this…." It turned out not as convenient as we would like, and it cannot be changed.

• There are misunderstandings about saving on power when purchasing. It doesn’t happen often, but the most important complaints are...
• Recently, owners of gas boilers have been complaining about overpayments for “super-new” technologies that turned out to be unprofitable. Although this is not very important...
• Errors also occur in the fundamental choice - the best would not be a gas boiler at all, nevertheless, for some reason...

When a gas boiler is not the best

Does the house have the basis for economical heating?

Gas is becoming more expensive and will continue to become more expensive, like all other energy sources. Its waste will directly depend on the insulation of the house, which is also not cheap.

The better the insulation, the more expensive it is. The worse the insulation, the more expensive heating will cost. Where is the “golden mean”? - what degree of insulation is required, and what heating power should be in order to keep the house warm?
The balance of this is determined by the building design, which specifies insulation measures, and hence the power of the gas boiler.

How to conduct your own capacity calculations

As a rough approximation, it is believed that the energy loss of a residential private house should not be more than 100 watts per square meter of heated area in the coldest month. This means that the building must be “well” insulated, and there are no obvious drafts in it, i.e. ventilation under control.

This also means that a gas boiler with a power of 1 kW/10 sq. m. must heat the house so that it is warm, and if this does not happen, then you need to look for and eliminate heat leaks, which in the end will turn out to be cheaper than buying additional boilers and radiators, and then burning a lot of gas.

Before going to the store to buy a gas boiler, it is advisable to put the building in proper shape.

What power to choose

Gas boilers should not significantly exceed heat loss. Otherwise, the powerful burner will overheat the coolant too quickly and the boiler will constantly turn off and operate in frequent ignition mode. And there is no need to overpay for powerful equipment. It is accepted that equipment power should be reserved at 15% of heat loss. But as a rule, hot water is also prepared from a gas boiler. Then the power reserve needs to be increased to 25%. Then, with a house area of ​​250 sq. m. and possible heat losses of 25 kW, the house must be heated by a 32 kW boiler, which must be used.

By the way, independently calculating heat loss is a waste of time. It is unlikely that the real moisture content of the plaster, the real damage to the insulation in the attic by rodents (for example) and the actual area of ​​shading of the front window by wood will be taken into account, given the usual wind rose... so it is not recommended to engage in invention in this regard.

What do you pay attention to when choosing a boiler?

In addition to the brand and power, there are a couple of important nuances when choosing a gas boiler for your home. Firstly, already at the design stage, it is decided whether the boiler will have an open or closed burner. This is fundamentally important, since for units with different burners presented and completely different requirements at places of installation and operation.

Secondly, it is decided how many heating circuits should be in the boiler. The second circuit heats water for domestic needs. And you need to decide exactly how it will be prepared, how much it will be needed, and where the equipment will be located. Further details...

Is an open burner useful?

The burner is a closed type (forced ventilation) and operates under the influence of a fan. Air is sucked in from outside the room through the same pipe through which gases are discharged. At the same time it is heated. Wall-mounted compact units are equipped with this system, which can be installed in any utility room. damp room, and lead the pipe out through the wall. This is a universal, cheap and most common option. But floor-standing boilers with more advanced functionality are also equipped with such a burner...

More powerful floor-standing boilers are equipped with an open type (atmospheric) burner. They should be installed only in a separate combustion chamber, made according to the rules, equipped with an air supply to supply air to the boiler. The smoke is discharged through a high atmospheric chimney. Such boilers have no power restrictions and are recommended for big houses. Extremely reliable, equipped with a cast iron heat exchanger, etc...

Is a second heating circuit needed?

There is always one circuit for the movement of liquid through the heat exchanger in a gas boiler - the coolant for heating is heated in it.
But there may also be a second circuit - it will heat water for hot water supply to the house (DHW). In practice, it turns out that the second circuit reduces the final price of equipment for hot water supply. But it also reduces comfort.

From the second circuit, water can flow directly into the tap. This is inconvenient, since the boiler will turn on every time you open it, you need to wait until it heats up and hot water arrives... Also, water can flow into an intermediate electric boiler, where it gradually cools down, and be heated with electricity - the result is less water and more expensive...

Features of single-circuit

A single-circuit boiler is designed to work with an indirect heating boiler, in which for constant heating domestic water energy from the heating fluid is used. With this option, there is always a lot of cheap water, since it can be heated by the boiler constantly, and the boiler’s capacity is not small. The recirculation system makes it possible to get hot water from the tap immediately when it is opened. It is possible to fill the bath very quickly (draining the boiler), even with a low power of the boiler itself. It is possible to get hotter water...
But the price for the equipment is higher.

Select with one or two circuits

A practical recommendation comes down to a single-circuit boiler.
The price of an indirect heating boiler with a capacity of 150 - 200 liters is not small. It contains a spiral pipeline for heating from heating and this tank has special coating. An additional pump and an expansion tank for the recirculation pipe are also installed…. But subsequent comfort is more important.

With a double-circuit boiler, you can immediately get hot water from the tap without any equipment; just connect the pipe from the tap to the outlet of the second circuit. It will be possible to take a more or less comfortable bath even if the boiler power is 20 kW or more. By paying a little extra for an electric boiler of up to 50 liters, you can already get an order of magnitude greater comfort. And yet, is it worth saving so much and always giving up an avalanche of hot water?

As a rule, a double-circuit boiler is an economical option, which entails certain inconveniences in the future.

How does a condensing gas boiler work?

There is a lot of water vapor in the hot gases that are formed during the combustion of fuel. This water can be seen dripping from the chimney. IN condensing boilers The steam turns into water on a secondary cold heat exchanger, which is then discharged into the sewer. For the system to work, it is necessary that the heating return be as cold as possible, literally 30 degrees.

Condensing boilers are designed primarily for low-temperature heating, to work with warm floors and with radiators (in-floor convectors) up to 55 degrees. Then they develop their “monstrous” efficiency of 110 (!) percent.
But they can also operate in normal high-temperature mode, when the coolant heats up to 70 - 80 degrees.

Is a condensing boiler useful?

In Europe, laws have been passed obliging the installation of condensing boilers - heat generators that use the energy of the phase transition of water. This increases energy savings by up to 15% and significantly improves the environment.

But our ordinary homes, in most cases, are not ready for such a turn of events. Firstly, the house must be heat-saving - not only insulated, but also equipped with modern ventilation, wastewater heat recuperators and ventilation streams. Then low-temperature heating will cope well with our cold weather.

Also, the heating system itself should consist of a heated floor (preferably), and the area of ​​​​the radiators should be 20 - 30 percent larger.

It turns out that all this together, at current gas prices, is not economically profitable. An expensive condensing boiler, together with its heating system, will not pay for itself. In Europe, where the climate is much milder and the price of gas is higher, this is extremely profitable.
Therefore, such boilers are not very popular among us.

What to choose for your home

In terms of the degree of automation and the presence of protection, the range of boilers for a private home of the same power from different leading manufacturers are similar in price. Therefore, “picking through the bells and whistles” comes down rather to choosing in favor of one brand or design or another.

Autonomous heating systems are becoming commonplace.

Systems based on gas boilers are recognized as the most convenient and economical.

They do not require constant human intervention, are not too expensive, and are capable of independent work During a long time.

Modern models make it possible to use fuel energy with virtually no losses and have multi-stage protection from all external influences.

The question of the primacy of gas or electric heating has arisen a long time ago, but has not yet been clearly resolved.

The main argument of supporters of gas heating is the threefold (at least) difference in monthly payments for gas and electricity for the same conditions and areas. However, supporters of electric heating have their own arguments - the price of a gas boiler is approximately 6 times higher than that of an electric one.

These are only the primary costs, renovation work they will again require owners of gas equipment to shell out large sums of money. But here there are some caveats - if a non-volatile gas boiler is used, the amount of costs is significantly reduced.

It is difficult to say unequivocally which boiler is better. Both types depend on the supply of fuel and electricity. The state of power grids, especially in remote regions, is difficult.

They are overloaded and need urgent updating. Rely on them for this important issue risky. In addition, the longer the service life, the more noticeable the difference in costs.

The advantage of gas units becomes indisputable. This allows, with some reservations, to recognize the primacy of gas heating over electric heating.

Types of devices for home

There are many design options for gas boilers designed for use in autonomous systems.

They are designed for use in different conditions, have several functional capabilities and can be divided according to appropriate characteristics.

According to the set of functions, gas boilers are divided into:

• single-circuit. They are only capable of heating the coolant for the heating system;
• double-circuit. In parallel with heating the coolant, hot water is prepared for domestic needs.

By installation type:

• wall-mounted. Installed in a hinged manner on solid walls or special support frames;
• floor. They do not require special installation, the maximum is a non-flammable stand.

By type of power supply:

• volatile. To power the control board, sensor system, pump and fan, the boiler must be connected to the network;
• non-volatile. They do NOT require a power supply; they operate only on a mechanical principle.

By heat transfer method:

• convection. The usual operating principle is by heating the coolant using a gas burner;
• condensation. Before the main heating, the coolant is prepared using thermal energy obtained by condensing moisture from the exhaust smoke. The design is effective only in appropriate conditions, when the difference in temperature outside and inside the room does not exceed 21°;
• parapet. These units themselves are sources of heat, acting like a stove. There are holes on the body through which hot air comes out, heating the room.

By type of combustion chamber:

• atmospheric. This old type combustion chambers, where air is taken from the room and smoke is removed naturally, through a standard chimney;
• turbocharged. Air supply and smoke exhaust are produced by a built-in turbofan. This type is more modern, the room is provided fresh air, there is no specific burning smell.

All existing structures can demonstrate maximum efficiency and durability only when the appropriate conditions are created. When choosing, you should take into account where and how the boiler will operate, whether it will be able to provide full power and productivity.

Popular manufacturing brands

The efficiency and economy of gas heating is confirmed by the high demand for gas boilers.

A large number of companies produce this type of equipment. European companies are leading in this direction, but manufacturers from other countries are practically not lagging behind them. South-East Asia and Russia. The number of firms is large, which creates serious competition between them.

The most famous companies are::

• Vaillant. A well-known German brand that produces reliable and high-quality gas boilers;
• Buderus. A company from Germany produces high-quality heating equipment of a high level;
• Viessmann. Another German company whose products are highly valued by users all over the world;
• Ariston. The Italian company is currently a subsidiary of Indesit.
• Baxi. Another well-known company from Italy;
• Protherm. Slovak company. Known for naming a series of gas boilers after animals;
• Navien. Korean manufacturer of inexpensive and high-quality gas boilers;
• ZhMZ. The abbreviation “Zhukovsky Machine-Building Plant” is well known in Russia. Non-volatile boilers from this manufacturer are characterized by stable operation and low prices;
• Lemax. The company from Taganrog (Russia) produces gas boilers of high quality and affordable cost.

The list of companies producing gas heating equipment is far from complete.

New companies are constantly emerging, companies are merging into single holdings. Changing the situation contributes to the development and improvement of equipment, allows us to achieve better performance and reduce prices.

How to choose and what to pay attention to?

The choice of a gas boiler is based on the size of the room and the needs of the people.

You need to pay attention to the following parameters:

• power. It determines how efficient the boiler is. Depends on the area, calculated in the proportion of 1 kW per 10 sq.m. For example, a 12 kW boiler is capable of heating a room of 120 sq.m.;
• number of circuits. This indicator indicates the functionality of the boiler;
• installation method. As a rule, wall-mounted models are chosen for apartments where the installation location is the kitchen. Floor models require a separate room, which is easier to provide in a private house;
• type of ignition and burner. Electric ignition is preferable, but this is excluded in non-volatile models;
• heat exchanger material and design. Most boilers are equipped with steel (stainless) components. There are also more efficient copper and cast iron designs. The first are used in wall-mounted, the second - only in floor-standing models;
• combustion chamber type. A closed combustion chamber is preferable, which does not pollute the indoor air;
• naturally aspirated or turbocharged. This indicator also applies to the combustion chamber and the method of smoke removal. Turbocharged models all have a closed chamber, while atmospheric models have an open chamber;
• additional functions. There may be different options here, from remote control using an application on a smartphone, to the room thermostat. It is necessary to take into account that the cost of a boiler with additions is much higher, but whether they will be used or not is a big question.

NOTE!

You should not choose a boiler “for growth”. It must work at full capacity, otherwise components and parts will quickly fail.

TOP 5 single-circuit gas boilers

Single-circuit models are used either only for heating, or in conjunction with an external indirect heating boiler. This option allows you to obtain hot water without restrictions on water volumes and without temperature fluctuations. Let's consider several popular models:

Lemax Premium-10 10 kW

Single-circuit gas boiler domestic production. Designed to heat 100 sq.m. Non-volatile design allows operate the unit without connecting to power supply networks.

Basic parameters of the boiler:

• installation type - floor;
• Efficiency - 90%;
• gas consumption - 1.2 m3/hour;
• dimensions - 330x748x499 mm;
• weight - 41 kg.

Advantages:

• energy independence;
• well organized service maintenance and supply of spare parts;
• The design was created taking into account Russian climatic conditions.

Disadvantages:

• when heated to 50°, condensation appears in small quantities;
• there is no display, there is no way to obtain information about the state of the boiler components.

Non-volatile models are reliable and simple. They are quite safe, but require a high-quality chimney.

Lemax Premium-20 20 kW

Russian-made gas boiler. The power of the unit is 20 kW, which is suitable for rooms up to 200 sq.m. Equipped completely mechanical control.

Boiler parameters:

• installation type - floor;
• energy consumption - non-volatile;
• Efficiency - 90%;
• gas consumption - 2.4 m3/hour;
• dimensions - 556x961x470 mm;
• weight - 78 kg.

Advantages:

• Ease of Management;
• low cost.

Flaws:

• complex ignition;
• you have to adjust the gas pressure so that there is no popping noise when igniting.

Domestic non-volatile boilers are much simpler and cheaper than their European counterparts. This is both a plus and a minus of the units.

Protherm Wolf 16 KSO 16 kW

Slovak gas boiler with a capacity of 16 kW. Optimally suitable for heating a house with an area of ​​160 sq.m.

Main technical characteristics:

• installation type - floor;
• energy consumption - independent;
• Efficiency - 92.5%;
• gas consumption - 1.9 m3/hour;
• dimensions - 390x745x460 mm;
• weight - 46.5 kg.

Advantages:

• simplicity and reliability;
• no need to connect power supply;
• economical fuel consumption;
• stable work in automatic mode.

Flaws:

• there is no indication of the state of the main components of the boiler;
• ignition using a piezoelectric element is somewhat difficult.

Gas boilers made by Slovak engineers are highly rated by users, which confirms the high demand.

BAXI ECO-4s 1.24F 24 kW

Gas boiler from a famous Italian manufacturer. The power of the unit is 24 kW, which corresponds to service area 240 sq.m.

Options:

• installation type - wall;
• Efficiency - 92.9%;
• gas consumption - 2.73 m3/hour;
• dimensions - 400x730x299 mm;
• weight - 29 kg.

Advantages:

• compactness, light weight;
• reliability, stability;
• full control over all systems and components using self-diagnosis;
• There is a display showing all the parameters of the unit, both current and permanent.

Flaws:

• when the power supply is turned off, the boiler operation stops;
• high price for the boiler itself and for spare parts.

Italian heating technology is considered elite. It successfully competes with German models in all respects and enjoys well-deserved recognition and high demand among buyers.

Lemax Leader-16 16 kW

Russian single-circuit non-volatile boiler. Its power is 16 kW, which allows you to heat rooms up to 160 sq.m.

Main characteristics:

• installation type - floor;
• energy consumption - independent;
• Efficiency - 90%;
• gas consumption - 1.9 m3/hour;
• dimensions - 431x856x515 mm;
• weight - 95 kg.

Advantages:

• stable, sustainable work;
• low cost of the boiler and repair work;
• independence from power supply.

Flaws:

• minor flaws made during assembly;
• heavy weight

Floor-standing gas boilers are not limited in the weight and size of units, which allows you to create more powerful and durable units.

TOP 5 double-circuit gas boilers

Double-circuit boilers are considered the most preferred option among users.

This is true although for families with great need in hot water it is better to use single-circuit models with an external storage tank. Double-circuit units are convenient for small families or for use in public buildings. Popular models:

Vaillant turboTEC pro VUW 242/5-3 24 kW

German boiler from one of the most reliable manufacturers. It has a power of 24 kW, allowing you to heat rooms up to 240 sq.m. with simultaneous supply of hot water.

Unit parameters:

• installation type - wall;
• power consumption - 220 V 50 Hz;
• heat exchanger type - separate (primary copper and stainless secondary);
• Efficiency - 91%;
• gas consumption - 2.8 m3/hour;
• dimensions - 440x800x338 mm;
• weight - 40 kg.

Advantages:

• fully provides housing with heat and hot water;
• reliable stable operation;
• developed network of service centers.

Flaws:

• needs power supply stabilization;
• high price for boilers and spare parts.

Vaillant units are considered the most stable and reliable in operation. This is confirmed by ordinary users and service specialists.

Buderus Logamax U072-12K 12 kW

Gas boiler made in Germany. It belongs to the elite examples of European heating technology. Power is 12 kW, allowing to heat 120 sq.m.

Characteristics:

• installation type - wall;
• power consumption - 220 V 50 Hz;
• Efficiency - 92%;
• heat exchanger type - separate (primary copper, secondary stainless);
• gas consumption - 2.1 m3/hour;
• dimensions - 400x700x299 mm;
• weight - 29 kg.

Advantages:

• stable and reliable operation;
• no noise;
• Ease of Management.

Flaws:

• high price;
• the need to use a power supply stabilizer and a water filter.

If you do not immediately install the filter units and stabilizer during installation and first start-up, you can quickly damage the unit and incur unnecessary costs for repairs and restoration of the boiler.

Bosch Gaz 6000 W WBN 6000- 12 C 12 kW

Gas double-circuit convection boiler with electronic control. Designed for rooms up to 120 sq.m., since it power is 12 kW.

Characteristics:

• installation type - wall;
• power consumption - 220 V 50 Hz;
• Efficiency - 93.2%;
• heat exchanger type - separate (primary copper, secondary stainless);
• gas consumption - 2.1 m3/hour;
• dimensions - 400x700x299 mm;
• weight - 28 kg.

Advantages:

• reliability, stability;
• no noise;
• low gas consumption.

Flaws:

• high cost of spare parts and repair work;
• demands on the quality of water and power supply.

Bosch products are known all over the world and need no introduction.. The quality and reliability of heating equipment are considered benchmarks and serve as an example for other manufacturers.

BAXI LUNA-3 240 Fi 25 kW

Italian double-circuit convection boiler. With a power of 25 kW it is capable of heating an area of ​​up to 250 sq.m.

Options:

• installation type - wall;
• power consumption - 220 V 50 Hz;
• Efficiency - 92.9%;
• heat exchanger type - separate (copper-stainless steel);
• gas consumption - 2.84 m3/hour;
• dimensions - 450x763x345 mm;
• weight - 38 kg.

Advantages:

• reliability;
• high performance;
• high-quality components and parts of the unit.

Flaws:

• high cost;
• The boiler dimensions are too large for a wall-mounted model.

Italian boilers are famous for their quality and reliability. However, to work in Russian conditions it is necessary to use additional equipment - a stabilizer and filter units.

Navien DELUXE 16K 16 kW

Korean boiler, characterized by relatively low cost and high quality. With a power of 16 kW it is capable of heating 160 sq.m. area.

Boiler characteristics:

• installation type - wall;
• power consumption - 220 V 50 Hz;
• Efficiency - 91.2%;
• heat exchanger type - separate (both units from of stainless steel);
• gas consumption - 1.72 m3/hour;
• dimensions - 440x695x265 mm;
• weight - 28 kg.

Advantages:

• reliability, high build quality;
• relatively low price;
• adapted to Russian conditions.

Flaws:

• high noise level (relative);
• Some parts are made of unreliable plastic.

South Korean boilers belong to the budget segment of heating technology. However, their quality is not inferior to their European counterparts, and the price is noticeably lower.

TOP 5 energy-independent gas boilers

Non-volatile boilers are a good choice for working in remote villages or regions with overloaded and dilapidated electrical networks. They continue to work in the event of a sudden power outage and do not require high costs for repair or replacement of failed components. Let's look at the most popular models:

Lemax Patriot-12.5 12.5 kW

Single-circuit parapet gas boiler. Equipped with openings in the housing that allow heated air to escape outside.

This makes the boiler itself similar to a convector, heating the room without the need to install radiators. The boiler power is 12.5 kW, which is suitable for rooms of 125 sq. m.

Its parameters:

• installation type - floor;
• energy consumption - independent;
• Efficiency - 87%;
• gas consumption - 0.75 m3/hour;
• dimensions - 595x740x360 mm;
• weight - 50 kg.

Advantages:

• simplicity of design, reliability;
• low fuel consumption;
• easy control;
• low price.

Flaws:

• there is no complete information about the condition of the unit components. There is only a pressure gauge. indicating gas pressure;
• it is necessary to install a traditional type chimney.

Domestic boilers are optimal for Russian climatic and technological conditions. They are unpretentious and reliable, do not require expensive repairs or maintenance.

Lemax Leader-25 25 kW

Convection gas boiler 25 kW. Designed to work in rooms up to 250 sq.m. Unit single-circuit, with cast iron heat exchanger and mechanical control.

Its parameters:

• installation type - floor;
• energy consumption - independent;
• Efficiency - 90%;
• gas consumption - 1.5 m3/hour;
• dimensions - 515x856x515 mm;
• weight - 115 kg.

Advantages:

• strength, reliability of design;
• stability, smooth operation;
• Italian components.

Flaws:

• large weight and size;
• Some users find the ignition procedure unnecessarily complicated.

Boilers with a cast iron heat exchanger are characterized by smooth operation and the absence of sudden temperature changes.

Lemax Leader-35 35 kW

Another domestic boiler designed for large rooms. With a power of 35 kW it is capable of heating area up to 350 sq.m., which is suitable for big house or public premises.

Boiler parameters:

• installation type - floor;
• energy consumption - independent;
• Efficiency - 90%;
• gas consumption - 4 m3/hour;
• dimensions - 600x856x520 mm;
• weight - 140 kg.

Advantages:

• high power, ability to heat a large room;
• stable and efficient work;
• double-circuit boiler provides heat and hot water at the same time.

Flaws:

• large size and weight, requiring a separate room;
• gas consumption is quite high.

High-power boilers are often used to heat several apartments or houses. This reduces the financial burden on homeowners, since fuel payments are shared equally by everyone.

MORA-TOP SA 20 G 15 kW

Gas convection boiler manufactured by Czech engineers. The power of the unit is 15 kW, suitable for working in a house with an area of up to 150 sq.m.

Main settings:

• installation type - floor;
• energy consumption - independent;
• Efficiency - 92%;
• gas consumption - 1.6 m3/hour;
• dimensions - 365x845x525 mm;
• weight - 99 kg.

Advantages:

• independence from electricity supply;
• stability of work;
• The power is suitable for most medium-sized private houses.

Flaws:

• an atmospheric burner requires a normal chimney and does not allow drafts in the room;
• relatively high price.

Compared to their Russian counterparts, European boilers are noticeably more expensive. Users note excessive costs, as well as interruptions in the supply of spare parts.

Siberia 11 11.6 kW

Domestic single-circuit gas boiler. Suitable for small rooms up to 125 sq.m. This is due to the power boiler, amounting to 11.6 kW.

Specifications:

• installation type - floor;
• energy consumption - independent;
• Efficiency - 90%;
• gas consumption - 1.18 m3/hour;
• dimensions - 280x850x560 mm;
• weight - 52 kg.

Advantages:

• stable work;
• unpretentious, economical boiler. Fuel consumption is noticeably lower than that of analogues from other manufacturers;
• ease of management and maintenance;
• relatively low price.

Flaws:

• the declared indicators cannot always be achieved, the boiler power is sometimes not enough;
• Difficult and inconvenient ignition.

Non-volatile boilers are optimal in Russian conditions. In cold weather it is too dangerous to remain without heating, so the independence of boilers is highly valued by users.

TOP 5 gas boilers made in Russia

Russian gas boilers did not stand out too much among similar products in the budget segment. However, recently there has been a clear increase in the quality and capabilities of Russian heating engineering.

Successful and reliable designs have appeared, characterized by stable and durable operation. A separate advantage should be considered the low cost and availability of spare parts, which increases the demand for units. Several popular models:

Lemax Patriot-10 10 kW

The unit is of relatively low power, suitable for an apartment or cottage. It is capable of developing 10 kW, which allows heating 100 sq.m.

Unit parameters:

• • boiler type - parapet;
  • functionality - single-circuit;
  • Efficiency - 90%;
  • power - 10 kW;
  • dimensions - 595x740x360 mm;
  • weight - 50 kg.

Advantages:

• energy independence;
• reliability, stable operation without failures;
• low cost of the boiler and spare parts.

Flaws:

• difficulty of ignition;
• it is impossible to monitor the condition of components and parts without stopping the system and disassembling the boiler.

Low-power boilers work well in apartments or country houses, where they have optimal operating conditions.

Lemax Premium-30N 30 kW

Floor-standing non-volatile gas boiler with a power of 30 kW. Designed to heat an area of ​​300 sq.m.

Its parameters:

• boiler type - convection;
• functionality - single-circuit;
• Efficiency - 90%;
• power - 30 kW;
• dimensions - 470x961x556 mm;
• weight - 83 kg.

Advantages:

• high power;
• ease of setup and adjustment;
• For such power the cost is very low.

Flaws:

• high fuel consumption;
• large weight and size.

High-power boilers can be connected in a cascade, forming complexes for heating large areas.

Lemax Premium-12.5N 12.5 kW

Gas floor-standing non-volatile boiler for heating small houses or apartments. Designed to work in rooms up to 125 sq.m.

Unit characteristics:

• boiler type - convection;
• functionality - single-circuit;
• Efficiency - 90%;
• power - 12.5 kW;
• dimensions - 416x744x491 mm;
• weight - 60 kg.

Advantages:

• profitability, operational efficiency;
• it is possible to install a forced-air burner and an external turbofan to enhance traction;
• relatively low price.

Flaws:

• it is inconvenient to light the burner;
• you have to frequently clean the open combustion chamber.

For some users Russian boilers seem too simple and primitive. This belief changes after the first breakdown, when the cost of repairing an imported boiler forces you to look at domestic analogues with different eyes.

ZhMZ AOGV-17.4-3 Comfort N

Non-volatile convection gas boiler designed for heating rooms up to 140 sq.m:

• boiler type - convection;
• functionality - single-circuit;
• Efficiency - 88%;
• power - 17 kW;
• dimensions - 420x1050x480 mm;
• weight - 49 kg.

Advantages:

• reliable and stable operation;
• good set of parameters;
• independence from connection to the power supply network.

Flaws:

• needs a separate room with a chimney.

Boilers from the Zhukovsky plant are known for their reliability and simplicity of design. They are in wide demand among buyers.

Lemax PRIME-V20 20 kW

Compact boiler for heating rooms up to 200 sq.m. and hot water supply.

Options:

• boiler type - convection;
• functionality - dual-circuit;
• Efficiency - 92.5%;
• power - 20 kW;
• dimensions - 430x770x268 mm;
• weight - 29 kg.

Advantages:

• optimal set of qualities;
• low price;
• simplicity and reliability of design.

Flaws:

• A voltage stabilizer is needed, since the boiler is volatile.

Domestic units seem inconvenient and difficult to use to many. However, these shortcomings are more than compensated for by the reliability and efficiency of the boilers.