Gas boiler for heating a private house: choosing a system. Gas boilers for heating a private home - how to choose equipment without overpaying for unnecessary functions The best gas boiler for the home

Which gas boiler manufacturer is better?

During the selection process, the consumer has a question about which manufacturer produces the best gas boilers for heating. Reviews and ratings show that the most reliable and durable units are those produced by the German companies Vaillant, Viessmann, Buderus. They are also leaders in the production of condensing-type gas boilers. Vaillant and Viessmann produce a record number of condensing units and are constantly improving their technology. However, the cost of German heating devices is quite high, as is the price of their repair. Therefore, the majority of consumers prefer gas heating boilers from Italian or Czech companies. For example, devices of the brands Baxi, Ariston, Protherm, Thermona are cheaper than their German counterparts, and are almost as good in quality.

Gas boilers from domestic manufacturers Neva Lux, Lemax, Borinskiye, and CONORD are also popular. Of course, they are somewhat inferior to foreign models in terms of build quality and the number of additional functions, but Russian-made units are affordable, unpretentious to the quality of fuel and water, and are also resistant to voltage surges. In addition, for domestic products it is easier to find components and their repair will be cheaper.

The best batteries for a gas heating system

The gas heating system has features that create certain requirements for radiators:

• low operating coolant pressure;
• the presence of a closed circuit, which eliminates pressure drops and water hammer in the system;
• use of high-quality coolant.

Which heating batteries are best for a gas boiler? Bimetallic and cast iron must be immediately excluded. They are good for a centralized system, but not for a gas one - cast iron takes too long to heat up and this significantly reduces the efficiency of the boiler, and the use of bimetallic radiators in this case is not economically feasible. This leaves only aluminum batteries. They are considered the best for a gas heating system, but when choosing and installing, you should take into account operational details.

The disadvantages of aluminum radiators include:

• fear of water hammer;
• susceptibility to corrosion.

But in a gas system, both of these problems are easily solved: the presence of the first is simply excluded, and the second is solved by installing a filter at the tap water inlet into the boiler.

The advantages of aluminum batteries combine them perfectly with a gas unit:

• able to heat up and cool down quickly;
• do not require a large volume of coolant;
• weigh little;
• easy to install.

It is important to correctly calculate the required number of radiators. To do this, you should pay attention to the heat transfer of one section. It is believed that 100 W of energy is needed to heat 1 m². To compensate for certain heat losses, another 10-15% of the obtained figure is added.

To eliminate corrosion processes, it is necessary to connect the boiler and radiators using plastic pipes. When installing a heating system, it should be taken into account that aluminum is capable of releasing hydrogen gas - this occurs when the metal reacts with water saturated with oxygen. Therefore, do not forget about installing a Mayevsky tap to remove excess gas.

As for choosing a manufacturer of aluminum radiators, the quality of products from Russian companies is in no way inferior to foreign ones, but they are an order of magnitude cheaper.

In a private home, rarely does anyone rely on central heating. But you can’t do without hot water outside the city. Wood and coal stoves are not a solution; they are troublesome and dirty. Gas heating will help out. And if there is gas (connection to the gas main), you only need to buy a gas boiler. And if you choose the right model, the equipment will provide the house with hot water and heat for a long time and uninterruptedly, while remaining invisible, and therefore problem-free.

All that is needed to ensure the operation of such a boiler is to set the desired mode and carry out regular (infrequent) technical inspection.

• floor;
• and wall.

The first ones can be installed virtually anywhere (quite often a separate niche is allocated for floor-standing boilers in the basement of a private house). They have serious power (more than 30 kW) and a massive cast iron heat exchanger, made in sections. Therefore, it is advisable to use such equipment in a room whose area is more than 50 sq. m. The boiler itself occupies a substantial area, so in a small house it will be more of a nuisance than a heater. For small spaces, the wall-mounted option is more suitable. Such equipment has a smaller heat exchanger and smaller power.

One of the characteristic features of any gas boiler is the installation of a chimney. It can be of two types:

1. In the form of a structural element of a building. To create draft, a fan is installed in it. This passage is called turbine, and the system of such a boiler is considered open. The problem with such an arrangement is only one thing: the boiler burns oxygen indoors, so a constant supply of fresh air is necessary.
2. Closed. This chimney is made from a coaxial pipe. This is where combustion products are removed. To provide thrust, such a passage is also turbined. Fresh air is taken in through an external pipe.

Burners and ignition system

Modern gas boilers use exclusively modulating burners that maintain a constant outlet water temperature. And all this according to the task that the user sets using the regulator. However, the main option of such a burner is mixing air and gas in optimal proportions for combustion. This ensures complete gas combustion, which means high equipment efficiency.

When choosing a gas boiler, you need to pay attention to the material from which the burner is made. It is best if it is stainless steel, which provides the parts with operational durability.

As for the ignition system, it is an element that causes a lot of trouble for gas equipment design engineers. It would seem that the operation is simple: bring the fire to the gas stream. In manual mode it’s a trifle, but in automatic mode it’s a big deal. The problem was solved with the help of an igniter - you light it once with a match, and then there is constant burning. As soon as gas is supplied to the igniter zone, the burner ignites and begins to heat the water. And when the gas supply stops, the igniter still continues to burn, until the next gas supply. And piezo ignition is no better than an igniter. It’s just that instead of a match, a piezoelectric element generates a spark.

The problem of irrational gas consumption (with constant operation of the igniter) is solved only by electric ignition, which uses a water flow sensor that is triggered only when the tap is turned on. An impeller is built into the water main, and the rotation of its shaft leads to the generation of a spark.

How many contours to choose?

The difference between a gas boiler and any other heating equipment lies in its operating features: it not only provides hot water, but also participates in heating the room. And each of these options has its own peculiarity:

• if hot water is for your own needs, a pulse consumer is required;
• If there is a heating circuit, it will need to be constantly turned on for heating.

The problem is easy to solve. The wall-mounted boiler has one heat exchanger, and both circuits are heated from it in turn. The advantage of an open circuit is that as soon as users turn off the hot water tap, all the heat goes directly to it. The heating circuit waits at this time, and as soon as the tap is closed, its heating resumes.

Double-circuit boilers have a different design. In normal mode, only the heating circuit is heated by its heat exchanger. As soon as the hot water tap opens, the heating is turned off, and boiling water goes to the circuit with another heat exchanger. And so on as long as the water flows. At the same time, forced system downtime does not affect the quality of heating in any way.

If the users’ need for hot water is greater than the boiler’s capabilities, it’s not a big deal. Most models of boiler equipment can allow the installation of an external boiler.

Security and automation systems

Any gas boiler is high-risk equipment. After all, where we are talking about hot water, gas and high temperatures, by definition there cannot be complete protection. Three things can prevent possible troubles:

• proper operation of the boiler;
• implementation of technical regulations described in its instructions;
• and timely service.

“Sensible” gas boilers (smart family) are required to have a comprehensive protective system. It protects the product and others from:

• exceeding the inlet temperature standards;
• drop in gas pressure;
• flame extinction;
• water or gas leaks.

All modern boiler equipment is also equipped with additional monitoring and warning systems (draft control, burner wear, etc.). Such devices warn of impending malfunctions during diagnostic activities during scheduled maintenance.

Selecting boiler power

When choosing a boiler for a private country house, first of all you need to decide what area will be heated with its help? For rooms with ceilings below 3 meters, this can be calculated as follows:

1. Take as a guideline a consumption of 1 kW for every 10 meters of total housing area.
2. Divide the total area by 10 and round the resulting value up.
3. Increase the resulting base power by 25%.

Next (based on indicators) in specialized catalogs, a suitable model of a gas boiler is selected, having previously studied its characteristics and operating details.

The characteristics of each specific country house should also be taken into account. Because this is a possible structure with increased heat loss. Then the power of the selected equipment will have to be increased by the same 25%. Or puzzle over “passive heating”. And for this it will be necessary to insulate the walls and floors in the housing, as well as install good modern double-glazed windows.

Boilers of different capacities result in different amounts of hot water. A one- or small two-room apartment, for example, can easily be provided with both heating and hot water by low-power boilers (up to 15 kW). Provided that only 2 people live there, for whom hot water with a capacity of 12 liters flowing per minute is quite enough.

If a family consists of 4 people, the water consumption will be at least 15 l/min. Boilers with a power of 20-25 kW can cope with this task. The upper power level of household gas boilers is approximately 35-40 kW. In this case, hot water flows out at a speed of 20 l/min, and the heated area can be up to 200 sq. m.

Many users have a desire to buy the most powerful and expensive gas boiler equipment in order to heat without problems. Experts warn against such a choice, explaining that a boiler operating at “underload” fails no less often than overloaded units. The reasons may vary. This, for example, happens if, instead of heating the heating circuit in continuous mode, an unauthorized transition to pulse mode occurs. And the boiler has a significant power reserve, it heats the house very quickly, then the automation simply “cuts it out”. And this has the most negative effect on the condition of the chimney and burner. The first accumulates condensation when cooling, and the second generally does not tolerate frequent alternation of heating/cooling cycles. All this leads to failure of expensive gas equipment components.

Coziness and comfort depend on optimal temperature and humidity levels. The best gas boiler, which is of primary importance for heating a private home, will help create the necessary atmosphere. Today, there are several main classifications of devices of this kind, each of which is intended for specific conditions of use. But first of all, gas boilers must be reliable, safe and efficient; the rating of gas boilers from the editors of the Marka.guru portal will tell you how to figure this out and purchase the right one. It takes into account customer reviews of popular models, as well as the opinion of specialists in the installation and repair of heating systems. Now a little more about how to choose the best boiler and what criteria you should pay attention to.

There is always a risk of purchasing a model that is not quite suitable, but in order to minimize this possibility, you need to calculate the purchase criteria.

1. Power- the basis for purchasing a boiler; the efficiency of heating the room will depend on it. As a rule, 1 kW is enough to heat 10 square meters of area; if the ceilings in the house are higher than 3 meters, a small additional power reserve will be required. Double-circuit boilers will also require additional calculations, because constant heating of water will require additional energy consumption and increased productivity.
2. Layout- no less important for houses with limited space. A double-circuit boiler is designed for drainage and heating of several systems - heating and hot water supply. The single-circuit gas boilers used are installed together with a storage boiler, in which water for domestic needs will be heated. It will take up additional space, and this is not always possible.
3. Location. A modern wall-mounted gas boiler can have a compact size and a presentable appearance that will fit perfectly into the interior, for example, of a kitchen. As a rule, these are low-power models that are suitable for heating a house of 150 square meters. meters or less.
4. Safety and reliability. The best gas boilers today boast automatic operation and self-diagnosis. Computerized systems are able to select the ideal programs to heat the room at the required temperature. If there is a fuel leak, the boiler will turn off and signal a problem to the owner. And this is far from the limit of possibilities.

Wall-mounted domestic boilers

These are modern heating systems, which are an extremely compact version of the boiler room. They can fit perfectly into the interior or be a complement to the kitchen set. The best wall-mounted gas boilers are designed for heating private houses and cottages, and require virtually no maintenance or reconfiguration.

This is a reliable option for individual heating. It combines gas leakage monitoring, automatic diagnostics, protection against overheating, freezing and pump blocking.

The power is 20 kW, this is enough to heat a house of less than 200 square meters and heat water. At a temperature of 30 degrees, the productivity will be slightly more than 8 liters per minute. The cost of such an acquisition is about 35,000 rubles.

• does not require special settings;
• incredibly safe;
• made of quality materials;
• intuitively simple controls.

Cons: not found in all stores.

Prices :

2. MORA-TOP Meteor PK24KT

Another reliable representative of wall-mounted gas boilers with a power of up to 23 kW. Suitable for those who often use hot water, the performance of this particular boiler is quite high and at temperatures up to 35 degrees it supplies almost 10 liters per minute. As for safety, everything is provided: protection against overheating, leakage, freezing and pump blocking.

This model will be the best option for those who do not plan to constantly monitor the operation of heating systems and want to be absolutely confident in the reliability of the equipment.

The cost of such a boiler is 41,500.

• makes virtually no noise;
• economical fuel and energy consumption;
• reliable and safe;
• high-quality case materials.

Cons: does not have an exhaust fan in its design.

Prices for MORA-TOP Meteor PK24KT:

3. Bosch Gaz 6000 W WBN 6000-24 C

Modern and reliable, an excellent boiler with a capacity of up to 24 kW for a private house or cottage.

Suitable for those who like it hot, since water for domestic needs can be heated up to 50 degrees, and there is no need to worry about good pressure, the supply is up to 7 liters per minute.

Externally, it is extremely presentable and compact, equipped with a display and electronic control type. It has auto-ignition, a built-in thermometer, as well as a system of auto-diagnosis and protection against overheating, freezing, fuel leakage and pump blocking. You can purchase the best gas boilers of the brand for a price of about 29,000 rubles.

• modern control and protection systems;
• affordable price;
• absolutely silent;
• quickly heats water to the desired temperature.

Cons: the slightest change in conditions stops work.

Prices Bosch Gaz 6000 W WBN 6000-24 C:

Stylish, compact, electronically controlled double-circuit gas boiler for heating a private home. It is medium in size and ideal for heating and providing hot water to a small house. The maximum area is up to 160 square meters, since its power is 16 kW. The device can be programmed to automatically start and shut down; a large display will help you navigate the settings.

In addition, this original device is the most progressive among most budget wall-mounted boilers, this is due to the ability to connect heated floors, self-diagnosis and several degrees of protection.

The purchase will cost 26,000 rubles.

• incredibly quiet;
• economical fuel consumption;
• programming work;
• safe.

Cons: quite large.

Prices :

5. Ariston CLAS B 24 FF

Universal double-circuit boiler with a built-in 40-liter boiler. Quite powerful - 24 kW, and also progressive in terms of hot water pressure, it can produce up to 16 liters per minute at a temperature of 35 degrees. A large display will help you easily configure the necessary operating parameters. Auto-ignition, thermoregulation and indication functions will help you navigate the modes.

Protection against leaks, overheating and freezing is also present, but there is another important aspect - water filtration.

The cost of one of the best gas boilers in terms of reliability and versatility is about 80,000 rubles.

• wide functionality;
• several degrees of protection;
• built-in boiler;
• high-quality performance.

Cons: size and cost.

Prices for Ariston CLAS B 24 FF:

6. Bosch Gaz 4000 W ZWA 24-2 A

The best gas boilers of this brand do an excellent job of heating large houses and cottages, as the power is 24 kW. Rapid heating of water allows you to output up to 11 liters of water at a temperature of up to 30 degrees and up to 7 at 50 degrees.

The boiler has a built-in filter, as well as the ability to connect a heated floor.

An excellent display, programming and protection system will help make work as safe and simple as possible. Cost about 33,000.

• built-in filter;
• system of autodiagnostics and protection against overheating and freezing;
• heating a large area;
• fast heating of water.

Cons: expensive components that are difficult to purchase.

Prices for Bosch Gaz 4000 W ZWA 24-2 A:

If you have to choose a boiler for heating without additional functions, a simple single-circuit device, then you should pay attention to this compact and attractive model.

It is suitable for large houses, as it has a power of 24 kW, and is also extremely easy to use: it has a thermostat, auto-ignition, indication, as well as protection against overheating, freezing, and pump blocking.

The device monitors the level of gas supply and leakage, and also performs self-diagnosis of equipment. An excellent budget purchase at a price of 32,000 rubles.

• availability;
• ease of setup and management;
• easy installation;
• design safety.

Cons: during network failures and temperature changes, it may stop working.

Prices :

This unit may be the best compact double-circuit boiler for your home.

It amazes with its simplicity and power - this is the classic 24 kW, which is enough for an impressively sized house or cottage.

The weight of the device is 28 kg, the advantages also include a thermostat, automatic ignition, incredibly simple controllability and a remote control included in the kit. The boiler has all the necessary diagnostic protection functions and does an excellent job of dispensing 13 liters of warm water per minute. The cost of a compact device is about 23,000 rubles.

• low price;
• convenient, well-thought-out controls;
• compact size;
• attractive design.

Cons: Quite noisy.

Prices :

Floor standing boilers

If you have to make a choice about which boiler to buy, floor-mounted or wall-mounted, anyone who is ready to set aside a small room for a boiler room will confidently say that floor-standing gas heating boilers have greater power and are easier to connect to a heated floor, as well as to a boiler. Most floor-standing boilers have a pressurized system, which increases efficiency, which in turn increases the noise level, which requires the equipment of a closed boiler room.

1. MORA-TOP SA 30 E

It uses fuel economically and quickly heats the room.

It has several modes depending on the time of year and maintains the set temperature. Affordable cost - 57,000 rubles.

• easy to operate;
• has a small size;
• excellent build quality;
• silent.

Cons: can hardly be called modern.

Prices for MORA-TOP SA 30 E:

2. Viessmann Vitogas 100-F GS1D871

The boiler has a presentable appearance, cast iron design and an incredible power of 35 kW.

Everything is supplemented with an excellent level of protection against overheating, freezing and gas leakage, which is already economically consumed, saving the family budget.

Designed for connecting external control, has auto-ignition, thermoregulation and indication. But you will have to pay seriously for quality and progressiveness, and this is about 115,000 rubles.

• economical fuel consumption;
• low noise level;
• high-quality housing;
• work safety.

Cons: high price.

Prices Viessmann Vitogas 100-F GS1D871:

The ultra-modern best gas boilers of this brand fit perfectly into any interior.

High power and performance allow you to heat buildings up to 400 square meters.

Gas consumption is minimal and amounts to only 3.6 cubic meters per hour. It has maximum functions for comfortable use, as well as a large number of degrees of protection against leaks, overheating and freezing. The cost is a little more than 80,000 rubles.

• economical fuel consumption;
• attractive design;
• high power;
• safety.

Cons: high noise level.

Prices :

4. Baxi SLIM 1.300 i

A modern and compact unit that will surprise you with its simplicity and efficiency. It copes well with heating 300 square meters.

Owners will be pleased with the economical gas consumption and the rapid increase in room temperature.

A large display will help you quickly navigate the controls, and the ability to connect a heated floor will appeal to all those who like to walk barefoot. An excellent option for a private house will cost 67,000 rubles.

• safety;
• simple controls;
• low noise level;
• The temperature rises quickly.

Cons: sensitive to voltage changes and surges.

Prices for Baxi SLIM 1.300 i:

Conclusion

A reliable heating system is one of the most important components of a residential building, not counting the roof and walls. And if we choose a worthy device, it must certainly be safe, easy to operate and, if possible, economical.

The rating from the Marka.guru portal will help you find the ideal boiler for a private home; we hope it will orient buyers in the huge range of boilers on the market.

49950 rub.

When choosing a gas boiler, you need to rely on the company’s reputation and its breakdown statistics. But there are also some criteria, without which it is simply impossible to find a good device. Let's try to figure out what you need to remember before purchasing gas equipment:

• Boilers are divided according to the installation method into wall-mounted and floor-mounted, so analyze where you have more space;
• The type of boiler - convection and condensation - should be selected depending on the desired price;
• The number of circuits - there are double-circuit and single-circuit boilers - affects whether the boiler can heat water;
• The greater the heating power, the better the device will work;
• The type of combustion chamber - closed or open - indicates whether a person can see how the boiler works;
• There are different sizes of boilers, so it is important to consider the area of ​​the room where it will be installed;
• High level safety is literally vital, because gas equipment can explode.

Article last updated: 01/11/2019

For heating private houses, it is most profitable to use gas heating equipment. This is due to the fact that gas is still considered the cheapest type of fuel. Such equipment is safe, economical and efficient.

We present to your attention a rating of gas boilers based on reviews from consumers and experts. If you decide to install gas heating in your home, then a review of the devices presented below will help you navigate the variety of gas-fired boilers.

Gas boilers are divided into two types.

Convection

The most common among boilers. Its operating principle is quite simple. Gas enters the combustion chamber through the burner nozzles, where a flame breaks out. It heats the heat exchanger with water, which flows through the pipes into the radiators and heats the room. As soon as the water temperature reaches the required temperature, heating stops. Combustion products are discharged through the chimney. The efficiency of such a boiler is 90%. The remaining ten literally go down the drain.

If the outlet temperature is below 57 degrees, then condensation will form on the walls of the combustion chamber, heat exchanger and chimney, which can lead to breakdowns, soot formation, and also shorten the life of the device.

To prevent this from happening, and also for more efficient use of thermal energy, a new type of boiler was designed.

Condensation

The efficiency of this device reaches almost 100% due to the fact that the energy is fully used for heating and no longer “flies down the drain.” This was achieved with the help of another heat exchanger - a water economizer. It is there that the carbon monoxide vapor cools until condensation forms, which accumulates in a separate tank. When steam is converted into liquid, useful thermal energy is released and transferred to the coolant.

A condensing boiler is more bulky and is usually installed in a separate room. The cost of the device is twice as much as that of traditional boilers.

Popular brands

Demand creates supply, which is probably why the market for gas heating equipment is so large. The more manufacturers there are, the more new models appear in stores. For an inexperienced user, this is a difficult choice, especially since few people are familiar with well-known brands. After all, this is a one-piece product; I bought it once and forgot about it for a long time.

Which manufacturers' products should be considered reliable and of high quality?

• Wolf. The German company produces boilers with very high efficiency. It is not yet very well known in the CIS, but it deserves close attention. Even budget models are of good quality and have built-in automation to ensure the most efficient operation.
• Vaillant. Also a German manufacturer. The products of this brand occupy more than twenty-five percent among other companies on the European market, which indicates quality, reliability and popularity.
• Bosch. This brand does not need advertising; it has long been a recognized leader in the production of equipment.
• STS and Bentone. Swiss companies. Their products are expensive, but very high quality.
• Ariston, Beretta, Lamborgini and Ferroli. The Italians have firmly occupied the middle price segment. Their products have a good price-quality ratio.
• Dakon. The Czech manufacturer produces budget models. German high-quality components, modern automation systems, as well as careful quality control are used here.

Just don’t think that Russian companies don’t produce high-quality products. By purchasing equipment from domestic manufacturers, the user can count on low cost, reliability and durability, high performance, as well as the availability of components and good service.

• "Zhukovsky Machine Plant". It has been producing heating equipment for over 40 years. Some boilers use imported automation. None of the models depends on the electrical network. Efficiency – up to 92%. High degree of reliability and long service life.
• "Borinskoe". This plant has been producing boilers for more than two decades. Almost all models are equipped with high-quality foreign automation, are energy independent, have a relatively modern design and an affordable price.
• Lemax. The Taganrog plant offers gas boilers with a special coating of heat exchangers that protects against corrosion. Models with cast iron heat exchangers are also produced, which are rightfully considered the most reliable. All equipment has high efficiency and is energy independent.

Rating of gas boilers - review of the best devices

To choose the best gas boiler for heating a private home, we recommend that you carefully familiarize yourself with the most popular models among domestic consumers.

12th place. Oasis RT-20

Used as the main heating device in apartments and houses with autonomous heating. Also responsible for hot water supply. The copper heat exchanger has good thermal conductivity, which increases operating efficiency.

The electronic panel provides convenient and intuitive control. The user only needs to set the required temperature.

A well-thought-out pricing policy allows you to purchase a high-quality multifunctional unit at an affordable price.

What are users saying?

Advantages:

• electronic control;
• good power;
• completely safe;
• build quality;
• compact size, does not interfere;
• modern design.

Flaws:

• few functions;
• there are no clear instructions for setting up hot water, you have to experiment at random;
• expansion tank too small;
• the turbine is noisy.

Gas boiler Oasis RT-20 20 kW double-circuit

11th place. Protherm Bear 30 PLO

An excellent floor-standing gas boiler for private homes. It works to provide heating, and when combined with a boiler, it also provides hot water supply. Ignites using a piezoelectric element.

Combustion products are removed naturally, in the presence of a chimney, or forcibly using a turbo attachment.

You can adjust the power by switching the stages on the control panel.

What are users saying?

Advantages:

• heats a 3-story house without problems (radiators and heated floors);
• easy to operate;
• you can connect a boiler;
• power adjustment;
• cast iron heat exchanger.

Flaws:

• the turbo nozzle is very noisy;
• The boiler rots after 5-7 years. Replacement is too expensive.

10th place. Baxi NUVOLA-3 Comfort

This is a real mini-boiler room, which includes not only a boiler for heating the house, but also a boiler that constantly maintains the set DHW temperature. Thanks to this, you will not have problems with adjusting the water from the tap.

Using a room thermostat, the boiler automatically regulates heating depending on the weather outside. The coaxial chimney is not subject to freezing.

This is an ideal solution for those who need comfortable hot water supply and stable high-quality heating of the room.

What are users saying?

Advantages:

• reliable and stable operation;
• there is always hot water in the shower;
• high level of quality;
• You can connect “warm floors”.

Flaws:

• complex remote control. It took me a long time to figure out the remote control;
• I would like a larger volume of hot water;
• expensive pleasure;
• weak pneumatic relay.

Gas boiler BAXI NUVOLA-3 Comfort 240 Fi 24.4 kW double-circuit

9th place. MORA-TOP Meteor Plus PK24KT

A reliable and safe boiler operates completely silently. It does not leak and does not break for years. Despite its small size, it does its job perfectly - heating the house and providing hot water.

Easy to connect, has simple and intuitive controls. Multi-level protection ensures security.

What are users saying?

Advantages:

• economical, gas consumption is low;
• wall-mounted, does not take up much space;
• there is always hot water;
• energy saving mode.

Flaws:

• not cheap;
• after turning off the gas, the boiler turns on manually.

Gas boiler MORA-TOP Meteor Plus PK24KT 23 kW double-circuit

8th place. Oasis BM-18

The boiler has a bithermic heat exchanger, that is, one circuit is built into the other. It is convenient, reliable and more economical than traditional models. But for effective operation, it is necessary to monitor the quality of the water, since scale and lime deposits can lead to breakdown.

Good performance and a copper heat exchanger allow you to quickly heat the house and also provide its inhabitants with hot water. Energy consumption is minimal.

Warranty – 2 years.

What are users saying?

Advantages:

• nice appearance, doesn’t look like a monster;
• convenient and intuitive control panel;
• heats water quickly;
• safe.

Flaws:

• no remote control;
• ignition from batteries.

Gas boiler Oasis BM-18 18 kW double-circuit

7th place. Lemax Premium-20

The boiler body is made of high-quality two-millimeter steel and meets all necessary standards. The heat exchanger is cylindrical, which ensures stable operation at pressures of up to three atmospheres.

The unit does not depend on electricity and is equipped with multi-level protection. The top panel can be easily removed, making the boiler easy to clean.

Product warranty – 3 years.

What are users saying?

Advantages:

• inexpensive for such power;
• simple;
• easy to clean;
• gas consumption is low;
• works silently;
• even in the most severe frosts the house is warm;
• Italian automatics;
• safe to use.

Flaws:

• strains the steel heat exchanger, let's see how long it lasts;
• heavy and bulky, it needs a separate room;
• makes noise;
• automation is unfinished.

Gas boiler Lemax Premium-20 20 kW single-circuit

6th place. Baxi LUNA-3 COMFORT 310 Fi

A modern double-circuit unit is designed to continuously supply the house with heating and hot water. Equipped with a removable digital panel, which also functions as a temperature sensor.

The boiler is pleased with its high efficiency - over 93%, which indicates not only efficient operation, but also profitability. A nice feature is the ability to work in a wide pressure range, which is especially important for our country, where all kinds of changes often occur.

What are users saying?

Advantages:

• good performance;
• Italian assembly;
• reliable model;
• spare parts are always available in the store;
• instant heating of the coolant;
• powerful pump.

Flaws:

• the display backlight goes into “sleep mode”, which is inconvenient;
• no hot water circulation;
• the pressure sensor is inconveniently located;
• weak point – fan and pneumatic relay;
• LPG injectors must be purchased separately.

Gas boiler BAXI LUNA-3 COMFORT 310 Fi 31 kW double-circuit

5th place. Lemax Premium-12.5

Domestic producers are literally pushing famous brands out of the market. Excellent quality and complete absence of flaws. When properly installed and operated, this floor-standing boiler operates efficiently and significantly reduces gas costs.

What are users saying?

Advantages:

• does not depend on electricity;
• quite powerful;
• economical;
• high performance;
• easy to operate;
• easily connects to the heating system;
• Italian automatic.

Flaws:

• not found.

Gas boiler Lemax Premium-12.5 12.5 kW single-circuit

4th place. Oasis BM-20

The wall-mounted boiler has forced water circulation, which ensures uniform heating. Safe to operate and easy to use. The boiler can be hung on the wall in any room - kitchen, attic, basement.

The positive aspect is that a chimney designed during construction is not required, so the unit can be used in apartments with autonomous heating.

The model is equipped with a high-performance bithermic copper heat exchanger, which simplifies the design and ensures greater reliability. Excess condensate is discharged into a special container.

Service life – at least 12 years.

What are users saying?

Advantages:

• decent inexpensive unit;
• the quality of work is excellent;
• good design and price;
• works quietly.

Flaws:

• You definitely need a water filter;
• boiling water flows immediately;
• the ignition runs on batteries, you often have to change them;
• low-quality automation;
• disposable dubious product.

Gas boiler Oasis BM-20 20 kW double-circuit

3rd place. Bosch Gaz 6000 W WBN 6000- 12 C

A wall-mounted gas boiler can provide a high level of thermal comfort and constant availability of hot water. It has a pleasant appearance, hangs on the wall and does not take up useful space. The front panel contains control buttons and user instructions.

Designed to heat an area of ​​at least 120 square meters. Unpretentious to changes in pressure and voltage. The primary heat exchanger is made of copper, which improves thermal conductivity. Hot water is heated using a plate heat exchanger.

With low gas consumption it has high productivity.

What are users saying?

Advantages:

• compact;
• fits well into the interior;
• silent;
• economical;
• many fine settings;
• You can configure it yourself using the Internet.

Flaws:

• Chinese assembly, complete defect, designed for a year of work;
• dependence on electricity;
• too much plastic;
• spare parts are difficult to find.

Gas boiler Bosch Gaz 6000 W WBN 6000- 12 C 12 kW double-circuit

2nd place. Baxi ECO Four 24 F

The Italian-made boiler is designed for heating and hot water supply, including in the summer. The range of features is beyond praise. Can be connected to a “warm floor” system.

The combustion chamber is turbocharged. There are seven degrees of protection. The heating area is at least 180 square meters.

What are users saying?

Advantages:

• reliable and unpretentious;
• easily converted to liquefied gas by replacing the nozzle;
• average price category;
• fully adapted to Russian conditions;
• summer/winter mode.

Flaws:

• Expensive;
• spare parts and components are not cheap;
• noisy;
• poor quality buttons on the control panel;
• sensitive to voltage changes;
• capricious electronics, a year later the control panel broke down;
• energy dependent.

Gas boiler BAXI ECO Four 24 F 24 kW double-circuit

1st place. Vaillant turboTEC plus VU

Despite its size, the boiler takes up virtually no space, as it hangs on the wall. It is intended for heating the premises, as well as for water heating.

A special feature of this model is the “hot start” - when you open a hot water tap, you do not need to wait for heating to start, warm water will run immediately.

What are users saying?

Advantages:

• German assembly;
• the boiler is powerful, but economical in gas consumption;
• copper heat exchanger distributes heat evenly;
• quality materials inside and out;
• digital control with LCD screen;
• multi-speed pump.

Flaws:

• turns off during power surges, a stabilizer is required;
• high price;
• began to hum when the water was heating up;
• depends on electricity.

Gas boiler Vaillant turboTEC plus VU 242/5-5 24 kW single-circuit

What characteristics should you pay attention to?

To correctly and competently choose a gas boiler, pay close attention to the following criteria.

• Power. The most important parameter. It completely depends on the area of ​​the heated room and the specific coefficient for the region of residence. For example, if you live in the middle zone, then the coefficient for every 10 m² is 1-1.2 kW, in the south - 0.7-0.9 kW, in the north - 2 kW. To calculate the boiler power for a house with an area of ​​300 m², located in a temperate climate, you need to make the following calculations: 300 * 1/10 = 30 kW.
• Installation method. Boilers are wall-mounted and floor-mounted. The first ones are compact, do not take up much space, are silent and affordable. The latter are more powerful, bulky, and often require a separate room for installation.
• Number of circuits. Single-circuit devices are intended only for heating, while double-circuit devices also provide hot water supply.
• Safety. It is desirable that the boiler can automatically turn off in all abnormal and emergency situations.

Important factors when choosing a device are gas and electricity consumption, efficiency, the availability of programmable conditions for night and day heating, and price.

• Be responsible when calculating power. If it is not enough, the room will heat up for a long time and cool down quickly. A powerful boiler, on the contrary, will lead to overheating - this is an unprofitable use of resources.
• If there is no separate, well-ventilated room and chimney, then a floor-standing boiler with natural draft will not suit you. It is better to opt for wall-mounted forced draft boilers.
• Do you already have hot water? Then you shouldn’t spend money on a double-circuit boiler.
• A biometric heat exchanger requires high-quality water without impurities. So if you do not have a water filter built into the water supply, then you will not save on such a boiler, because scale in the heat exchanger is guaranteed to lead to breakdown.

Conclusion

As you can see, the choice of boiler should be approached responsibly and with knowledge of the nuances. It’s better not to rely on chance, but to turn to professional gas workers. They will help you correctly calculate the power and advise which boilers are suitable for heating your room.