Now in Russia, the most common type of home heating is gas boilers. And this is not surprising, because the reason for such popularity lies in the low price of main gas on the territory of our country.

To make the right choice of a gas boiler, to choose the best option, you need to know the principles of operation, types of this equipment and key characteristics.

Principle of operation

To generate heat energy for the purpose heating objects for various purposes and water heating by burning gaseous fuels.

When gas is supplied to the boiler, electronic or piezo ignition is turned on. The spark ignites the igniter, which burns constantly. The main burner ignites from the igniter, heats the coolant in the boiler to the temperature set on the thermostat, then the burner shuts down. When the boiler starts to cool down, the temperature sensor sends a command to open the gas supply to the valve and the burner ignites again.

Classification and basic parameters of boilers

To solve various engineering problems for space heating, various options for gas equipment were developed. Gas boilers can be classified for various reasons. Here are some of them:

By location:

• floor (installed on the floor on a special platform);
• wall-mounted (more compact, but low-power - up to 100 kW).

By type of ignition:

• electronic (start automatically and save gas);
• with piezo ignition (non-volatile, switched on manually by pressing a button).

By type of traction:

• with forced draft (a fan is built into the structure to take air from the street and remove combustion products there; well suited for installation in an apartment);
• with natural draft (this type of boiler requires a special separate room that meets certain standards).

By function:

• single-circuit (perform only the function of heating, to ensure the supply hot water additional equipment required);
• double-circuit (provide the function of both heating and heating water for various needs using the equipment built into the gas boiler).

The main parameters for choosing a boiler are power and size of the room, in which the boiler will be installed. It is better to transfer the task of calculation to the designers, since this issue is very important. With the optimal calculation of power, the house will be warmed in minimum terms, heat and gas will not be wasted. If the calculations are correct, this will provide a comfortable temperature in the heated room.

Floor and wall boilers

First you need to determine which boiler is more suitable for a particular room: wall-mounted or floor-standing.

The floor-standing boiler is rather bulky and must be installed in a separate room. Installation must be carried out by a specialist. The heat exchanger is made of cast iron or steel, there is no fundamental difference when choosing. Floor standing gas boiler differs in the type of burner. There are boilers with atmospheric burner- simpler, quietly operating, but low-power (up to 80 kW). Boilers with ventilation burner can have a capacity of several thousand kW. Such boilers have high productivity, but also a high cost price.

A wall-mounted gas boiler differs significantly from a floor-standing one, and not only in the way of installation. Copper is always used as a metal for the heat exchanger. Such a boiler is much more compact, lighter and cheaper than a floor boiler. However, its disadvantages are small performance and power.

Traction types

1. Be sure to pay attention to the type of draft of the selected boiler. Into the cauldron with forced draft built-in fan. Removal of combustion products and air intake is carried out with its help. In this case, the presence of traditional chimney, it is enough to mount a compact coaxial chimney (these are two pipes of different diameters, fixed to one another, through which air is supplied and carbon monoxide is removed).
2. If the choice fell on a boiler with natural cravings, then in the room where it will be installed, a prerequisite is the presence of an ordinary chimney, and the room where the boiler is directly installed must be well ventilated.

Multifunctionality

1. You also need to know if the boiler is needed only for organizing heating at the facility or if an additional water heating function. In the first case, a single-circuit gas boiler is suitable. A double-circuit boiler will also provide hot water supply, but it should be noted that a low-power boiler is capable of heating not a large number of water. For example, if the boiler power is 7 kW, then only 3 liters of water will heat up per minute, and for normal hot water supply this parameter should be at around 10 liters.
2. Also, boilers are available with one power level, two switching between each other and with smooth power regulation between two values. More economical and more convenient an adjustable boiler will be in use.

Heat exchanger

1. Additionally, double-circuit boilers are also divided into boilers with a separate heat exchanger and a bithermic one. In a boiler with separate heat exchangers water is heated separately for radiators and for hot water supply. The advantages of this design are durability and less dependence on bad water.
2. In boilers with water, water is heated in one container, and then distributed to be supplied to radiators and mixers. This type of boiler is very sensitive to poor-quality water, scale quickly appears in it and productivity decreases.

Selection errors

The main parameter when choosing a heating boiler, as already mentioned above, is power. If you initially calculate it incorrectly, you can face many difficulties during operation. For example, if power is not enough, the room will heat up and cool down for a long time faster than the prescribed time. If, on the contrary, you purchase a very powerful boiler for a small room, it will be quite hot, you will often have to ventilate the room, which can lead to a cold due to constant drafts.

If there is a problem with lack of space(for example, the boiler must be installed in the apartment) and lack of a chimney, it would be a mistake to buy a floor-standing natural draft boiler, as it requires a spacious, well-ventilated room for installation. In this case, it is better to opt for the option with wall mounting and forced draft.

When choosing in order to save a boiler with bimetric heat exchanger do not rush to buy. You need to know what quality water will enter the system. If the water is contaminated, then the formation of scale will lead to a decrease in performance and, as a result, to a breakdown of the boiler. If the room has hot water supply, you should not buy a double-circuit boiler, in such a situation it is a waste of money.

Summing up

When choosing a gas boiler, the following are important:

• the size of the room to be heated;
• the presence of a chimney;
• do you need additional hot water supply.

You also need to evaluate the possibility of allocation a separate room to install the boiler. And contact a specialist with all the collected data. The more accurate the introductory conditions are, the more optimal the gas boiler will be selected by the consultant.

In this video, experts give advice on choosing gas boilers:

What a large number of articles on this topic exist on the Internet, and each of them is written directly as a carbon copy. Of course, there are many benefits in this information and it will certainly help in choosing a gas boiler for your home. But at the same time, the main secrets of acquiring a boiler are not revealed there. But you're in luck. You will learn about them in this article. Therefore, there is less introduction and we proceed to the disclosure of the topic.

Comparing gas boilers, you will definitely run into the choice of floor or wall option... And in fact, it is very difficult to tell you the right choice. After all, each option has its pros and cons and each satisfies its own specific criteria. Therefore, let's divide them according to their importance.

Purchase a wall-mounted gas boiler if:

• You need more efficient work
• We need all sorts of interesting modes of operation
• You need compactness and minimum installation difficulties
• If your house does not exceed 300 squares

Choose a floor-standing gas boiler if:

• Do you really big house or object
• Longer service life is important to you (applies to cast iron boilers)
• Need simplicity and stable performance
• You want a non-volatile solution
• You are ready to spend money on an additional chimney and other components

Double-circuit or single-circuit boilers?

This applies more to wall models. The recommendation here will be simple. If you have a small house with one bathroom and a kitchen, then take a double-circuit boiler and use hot water from it.

If you have several bathrooms, then choose.

The main problem with double-circuit boilers is their low productivity. At the same time, such a device can provide one hot water point. If there are several of them at once, problems may arise. For example, with a sudden cold shower. Everyone passed, everyone knows and does not want to repeat. Therefore, it is better to install a boiler.

Boiler with the best gas consumption

Comparing gas boilers with each other, you will probably ask the seller: “what gas consumption will my 100 square house with your boiler have”. The seller of X brand boilers will tell you that the consumption will be 5-6 cubic meters per day, and the Y brand seller will tell you the figure is 7-8 cubic meters. To celebrate, you will buy one in which the consumption will be less.

Do you know what will be your mistake? That you asked this question at all. Because not one seller will give the correct figure for the gas consumption. Today, the reality is that gas consumption depends not so much on the boiler, but on the heat loss of your home. And each house will have its own!

The boiler itself performs the function of compensating for heat loss. From here, remember the main thing: choosing a gas boiler in the same price segment from your classmates, you will get a similar gas consumption. Now these indicators have long been equal for all brands. Therefore, you can not worry too much about the expense.

Which boilers have better efficiency?

As our practice shows, a rare brand writes the truth about the efficiency of its boilers. And here's an example for you this option:

We have a gas boiler of the Ochag brand from the ServiceGas plant. We study the technical characteristics and see that the efficiency of their boiler Ochag Standard is 92%:

It's good, we think, and we go to study similar boilers and come across one of the best floor-standing boilers Baxi Slim for today. We look at the efficiency and see a value of 90%.

Already takes pride in the country! Our boilers are 3 times cheaper, and the productivity is also a couple of percent higher!

What is important for you to know about boiler efficiency? For wall-mounted boilers, the efficiency will always be higher than floor-standing ones. It fluctuates in the region of 92-93%. All wall-mounted boilers have the same efficiency. The ceiling was reached a long time ago and the difference usually differs in hundredths of a percent.

The maximum efficiency of a floor-standing boiler is 90%. No brand has yet been able to achieve higher than this indicator. And such an indicator is usually only available for expensive brands.

More power - more gas consumption

Choosing a gas boiler, you can often face the fact that there is no suitable boiler for your area. Let's say your house is 80 square meters, and boilers are available only from 15 kW.

An inexperienced buyer will look for boilers with a capacity in the region of 10 kW. An experienced one will buy what he likes. Indeed, in fact, there is no difference with what power reserve you take a gas boiler. Your consumption will be similar.

As mentioned above, the task of the boiler is to compensate for the heat loss at home. A more powerful unit will just do it faster. And the expense will be comparable.

Aluminum or copper heat exchanger?

Among gas boilers, there are models with both the first and the second heat exchanger. Copper is still more common. Aggressive marketing policy has convinced us that nothing can be cooler than copper. Overall, this is true. But few people know that the efficiency of a boiler with an aluminum heat exchanger decreases by less than 1%. Therefore, if you come across an excellent boiler, then the heat exchanger in it is not copper, this is not a reason not to buy it.

But it is worth noting that using an aluminum heat exchanger, the manufacturer is really trying to save money.

106% for condensing boilers

Sectional view of the condensing boiler

Choosing gas boilers, you may catch the eye, which are famous for their high efficiency. We talked about the device of these models in a separate article. Here we will tell you in what cases it is worth buying them.

It is important to understand the main thing - not one boiler can produce an efficiency higher than 100%. But manufacturers often like to write about an efficiency of 106% (the last figure can be anything). Therefore, you should not pay attention to this indicator. The same principle applies here as was announced earlier - all condensing boilers have a similar efficiency, higher than that of traditional ones, but below 100%.

condensing boiler operation diagram

You should only buy them if you are using low temperature heating systems. Such as, for example,. It is with low-temperature operation that savings are achieved. In other modes, the behavior is the same as for traditional boilers.

The difference between an expensive wall-mounted boiler and a cheap one

In fact, for the main task - heating your room, the choice of the most budgetary wall-mounted gas boiler of the X brand is enough for you than the same brand, but from the more expensive segment. After all, their gas consumption will be exactly the same.

Everything else is not always the necessary bells and whistles. Such as additional noise insulation, an energy efficient pump, functions, a sophisticated display, etc.

Even now, in order to save money, they began to use pipes and joints made of composite materials in cheap boilers, and metal in more expensive ones. Good or bad, time will tell.

It is important to understand one thing, if you choose a boiler for the purpose of ordinary heating at home, then you can take at least the simplest gas unit.

Here is such a material turned out. Anything to add? Write about it in the comments!

Since gas in Russia costs an order of magnitude lower than electricity, many owners of private houses turn to the installation of gas boilers. However, economic parameters are far from the only advantage of units of this type over others - they include high thermal power, optimal level of efficiency, minimum amount of harmful emissions, as well as the possibility of heating large premises (on average, from 150 to 300 square meters).

Of course, like any other technique, gas boilers have disadvantages. These include the strict coordination of the installation with the federal service of Gaztekhnadzor, equipping the house with a chimney to remove (a small amount) of combustion products, as well as the introduction of automation to detect gas leaks.

In our rating you will find 15 of the best and highest quality gas boilers, the purchase of which will provide you with warmth and hot water for many years. Before that, we advise you to study some of the nuances of choosing a gas boiler for a house or apartment.

The right choice - double-circuit or single-circuit?

As you know, according to the number of circuits, gas boilers are usually divided into single-circuit and double-circuit. Which one is better? The correct choice depends on the main purpose of the device.

Single-circuit ones are designed exclusively for the operation of the main coolant (radiators, pipes, etc.), that is, they are bought to provide heating. Most often, such devices are installed in summer cottages and in places where there is no water supply. In this case, a boiler is bought for a single-circuit boiler to heat water in an autonomous water supply system.

Double-circuit boilers are 2 in 1 devices. They can both heat the house and provide hot water supply. The coolant and the boiler in such a device are collected in one unit. If hot water is not consumed, the heating medium circulates in the heating circuit. As soon as the user opens the hot water tap, the system switches the valves so that the heat carrier is directed to the second circuit. This is the most popular type of gas boilers, which are installed in most apartments and private houses.

Heated power

The more powerful the boiler, the higher its cost. In order not to overpay extra money and eliminate additional costs in the future (the more powerful the boiler, the more it consumes resources), it is important to calculate what kind of gas boiler you need in terms of power. An approximate calculation is as follows: for 10 sq. m. of a well-insulated room (ceiling height up to 3 m) should account for 1 kW of the boiler's thermal power. For a poorly insulated room, another 30-50% is added to the heat output.

For country house 50 sq. m. it is enough to purchase a gas boiler with a capacity of 7 - 12 kW. But for a house with an area of ​​200 sq. m. you will need a more powerful device: 23 - 25 kW. Most modern double-circuit gas boilers are produced with a thermal power of 24 kW.

There is one more important detail when choosing the boiler power. If you take a device that is too powerful for a small room (for example, a 24 kW boiler for studio apartment 40 sq. m.), then the boiler will quickly heat up the coolant and turn off. As soon as the water cools down, the boiler will start up again. Constant switching on and off will occur very often, which will lead to accelerated wear and increased gas consumption. In turn, a boiler with a lower power will provide a smooth combustion, and on-off will occur much less frequently.

Which company should you give preference to?

The highest quality and most reliable gas boilers are manufactured by Italian, German and South Korean companies. Even taking into account the fact that many companies locate their production in China, purchasing a gas boiler of a popular brand is better than buying a little-known device.

To facilitate your choice, we list a list of the best manufacturers of gas boilers:

• Navien (South Korea)
• Bosch (Germany)
• Ariston (Italy)
• Baxi (Italy)
• Buderus (Germany)
• Vaillant (Germany)
• Protherm (Slovakia)
• Viessmann (Germany)
• Kiturami (South Korea)

Voltage stabilizer for a gas boiler - is it necessary or not?

After purchasing a gas boiler, it is advisable to install a voltage stabilizer. Especially if your network suffers from frequent power surges. The fact is that in the event of a boiler failure due to a power surge, it will not work to exchange the device under warranty. The requirement for the quality of the network is spelled out in each warranty agreement. Therefore, it is better to spend an extra 3-5 thousand rubles for a device with a capacity of up to 1 kW (and a powerful stabilizer for the boiler is not needed) than to end up losing tens of thousands of rubles.

Best inexpensive wall mounted gas boilers

The main advantages of wall-mounted gas boilers are lower price and compactness in placement. They are more preferable for rooms with limited space. For example, for an apartment. The disadvantages of wall-mounted models are lower power and shorter service life, in contrast to floor-standing devices.

3 Navien DELUXE 24K

Best ergonomics at an affordable price
Country: South Korea
Average price: 29 800 rubles.
Rating (2019): 4.5

Gas boiler Navien DELUXE 24K is maximum comfort at minimal costs... A double-circuit thermal energy generator is used for sequential heating of premises with a total area of ​​up to 240 square meters and for meeting domestic and household needs in hot water with a capacity of up to 13.8 l / min at t 35 ° C. A distinctive feature of the heater in the material of the primary heat exchanger is stainless steel. This fact slightly reduces the efficiency of the unit to 90.5%, but prolongs its durability due to the reliability of high-alloy steel.

Comfortable use of the hot water installation is ensured by a convenient display and clarity of instrumentation, an adapted room regulator with a remote control panel. The ease with which the operative intervention in the cyclic operation of the boiler is carried out allows to significantly reduce the consumption of blue fuel during operation.

The reviews note the stable operation of the electronic circuit under conditions of periodic voltage fluctuations in the supply network, amounting to +/- 30% of 230 V. The uninterrupted functionality is due to the presence of the SMPS (Switched-Mode Power Supply) protective chip, which complements the microprocessor. The combustion process in a closed chamber takes place without harmful failures and stops, which has a positive effect on the service life of the equipment, excluding breakdowns.

2 Baxi MAIN 5 24 F

The best quality
Country: Italy
Average price: 37 820 rubles.
Rating (2019): 4.5

The gas boiler Baxi MAIN 5 24 F is an example of a double-circuit unit in the line of biothermal heating devices. The engineering and technical solution, which combined the heating circuit with the preparation of water for hot water supply in a single hydrosystem, made it possible to significantly reduce the cost of the wall-mounted unit in comparison with heat generators equipped with separate heat exchangers. At the same time, there was no significant decrease in performance indicators. The boiler has enough capacity to heat an area of ​​240 square meters and prepare 9.8 l / min hot water at t 35 ° C.

The heat generator is designed to operate on natural and liquefied gas with a wide range of pressure in the fuel pipelines. When connected to centralized gasification mains, the coverage is from 13 to 20 mbar. A high pressure threshold of 37 mbar is allowed when powered by mobile and stationary gas tanks. This indicator indicates the high reliability of the boiler fuel equipment.

Customer reviews emphasize that the most popular options for a gas unit are the ability to connect external control: room regulators, weekly programmers and the provided interface with low-temperature heating circuits (underfloor heating).

Video review

Which heating boiler is better? A table of the advantages and disadvantages of four types of boilers: gas convection, gas condensing, solid fuel and electric.

1 Vaillant turboTEC pro VUW 242 / 5-3

High efficiency with maximum reliability
Country: Germany
Average price: 53,700 rubles.
Rating (2019): 4.5

The leading line of the rating is occupied by not the cheapest in the category, but the most reliable and efficient gas boiler Vaillant turboTEC pro VUW 242 / 5-3. The craftsmanship of German manufacturers knows no boundaries: for more than ten years of production, this model has heard mainly praise for various aspects of the design and operation.

A double-circuit boiler can be used not only as a heater: when a cold water source is connected to it, it copes no less brilliantly with the functions of a boiler. The maximum temperature of the DHW circuit is 65 degrees Celsius - for home use this is more than optimal indicator... 24 kW of power is enough for heating residential areas up to 240 square meters. In this mode, Vaillant turboTEC pro VUW 242 / 5-3 shows the highest efficiency value - about 91%. It is also worth noting the presence of six levels of protection, electronic control with the ability to modulate the flame, as well as a six-liter (generally standard) expansion tank.

The main shortcomings of the model affect purely the marketing side of the manufacturing company. The cost of servicing Vaillant boilers is very high, and the owner will bear the costs both for the purchase of a branded part and for its subsequent installation (approximately 50 to 50). Fortunately, serious breakdowns of units are extremely rare.

The best floor-standing gas boilers from the budget category

Floor standing gas boilers are considered more reliable and durable. They cost more than wall-mounted models, but they gain in power and can heat rooms from 200 sq. m. For the installation of floor-standing boilers, it is recommended to use a separate room (boiler room).

3 Protherm Wolf 16 KSO

The best automation. Developed service network
Country: Slovakia
Average price: 21,200 rubles.
Rating (2019): 4.5

The non-volatile "floor-standing", presented by the Slovak company "Proterm", is surprisingly small in size. At only 39 cm wide, almost 75 cm high and 46 cm deep, it can be easily installed in any small room. In the "Wolf" series, 2 modifications are presented, differing only in thermal power of 12.5 and 16 kW, sufficient for heating a private house with an area of ​​30 to 150 sq. m.

The fact that the main production site of Protherm is located at the Vaillant plant, the world famous German manufacturer of gas boilers, will tell a lot about the quality of manufacture. Floor-standing units are made of steel 3 mm thick, equipped with temperature and emergency controllers, a draft stabilizer, and a SIT gas burner device (Italy). The design is easy to install and operate, and therefore does not cause complaints from users. However, it must be taken into account that the 2-year warranty for the unit applies only if installed by a certified specialist.

2 ATON Atmo 30E

The most powerful gas boiler (30 kW)
Country Ukraine
Average price: 27 800 rubles.
Rating (2019): 4.0

A powerful single-circuit boiler of Ukrainian origin, which has everything you need to provide stable heating of premises up to 300 square meters. Actually, ATON Atmo 30E fulfills its main task beyond praise - the absence of a second circuit for heating water allowed Ukrainian craftsmen to pay more attention and funds to improve and fine-tune the heating function.

For normal operation, the boiler requires 3.3 cubic meters of gas per hour. This is quite a lot (especially for a budget model), however, almost all of the energy from the combustion of fossil fuel (the unit efficiency is 90%) is converted into thermal energy, which, in combination with 30 kW of power, results in such a vast heated area.

In general, the presence of the principle of economy is felt in the model: the designer cut off almost all "civilized" functions, leaving only the most necessary for the boiler - a thermometer, gas control and a thermostat to protect against overheating. This step has led to a noticeable increase in the level of reliability, since fewer components lead to fewer possible (elementary) failures. In general, ATON Atmo 30E is an ideal boiler for a large country house, not burdened with additional functions and the need to work as a boiler.

1 Lemax Premium-25B

Largest heating area at an affordable price
Country Russia
Average price: 27 360 rubles.
Rating (2019): 4.5

Lemax Premium-25B is an inexpensive floor-standing convection-type gas boiler. Produced in Taganrog. Able to efficiently heat a house up to 250 sq. m. with an efficiency of 90%. The low cost of the device is due to the steel structure of the heat exchanger. Such material is more susceptible to corrosion than copper and cast iron heat exchangers. However, the developer has provided a special heat-insulating coating with inhibitors, which should significantly reduce the corrosion of the heat exchanger.

The boiler is equipped with everything necessary for the safe operation of the system: heat exchanger overheating sensor, thermometer, gas control. There is auto ignition - ignition is carried out automatically. This indicates a higher reliability and efficiency compared to piezo-ignited devices. The nominal pressure of natural gas is 13 mbar, that is, the boiler will operate at full capacity even at low pressure indicators in the gas network (which is not uncommon in Russia). This is the best indicator in our review of budget floor boilers.

It is worth noting that the Lemax boiler is designed for an open heating system, therefore, when buying it, a chimney must be provided in the house for the removal of combustion products.

Most user reviews speak of Lemax's "indestructibility" and almost silent operation. It is an economical and hassle-free boiler at an affordable price, with a 3-year manufacturer's warranty. One of the best deals in the budget segment.

The best floor standing gas boilers: price - quality

Here are the most optimal in terms of price and quality floor standing gas boilers. The most popular units among buyers.

3 Buderus Logano G124 WS-32

Increased efficiency. Large assortment of additional equipment
Country: Germany
Average price: 102,000 rubles.
Rating (2019): 4.5

The Logano line includes 4 standard sizes (from 20 to 32 kW) of low-temperature boilers, which are considered more profitable and safer than high-temperature boilers. In addition, low temperatures in the heating system create maximum comfortable conditions for a person, while excluding strong temperature drops in an apartment or private cottage. The unit can be built into the heating system using warm floors, and if the heat loss at home is too high, it is possible to supplement it with radiators.

Additional heat savings are facilitated by the special design of the cast-iron heat exchanger and thermal insulation 80 mm thick. In order for buyers to individually assemble the heating device, the company offers an extensive selection of additional parts and assemblies, which, I must say, are very expensive. For example, the AW 50.2-Kombi flue gas control system is offered to be bought for almost 9.5 thousand rubles, and at least 50 thousand rubles will have to be paid for the Logalux SU floor-standing water heater. Nevertheless, consumers are satisfied with the economy, ease of operation and durability of the model and recommend it for purchase.

2 Navien GA 23KN

Stability and safety of operation. 3 year warranty
Country: South Korea
Average price: 34,000 rubles.
Rating (2019): 5.0

In June last year, Navien Rus LLC was awarded the Company of the Year award in the Best Supplier of Engineering Equipment category. A month later, the company celebrated with a 3-day conference the sale in Russia of the millionth hinged boiler. In addition, over the past 4 years, the brand has gained 46.6% of the votes and has repeatedly confirmed the title of "Brand No. 1" in the category "Boilers for heating". What is remarkable about his products, that they vote for it not only by word, but also by wallet?

First of all, buyers are attracted by the quite reasonable price for the unit, one appearance which speaks of the unsurpassed quality inherent in South Korean technology. They are not disappointed even after getting acquainted with the technical characteristics, in particular, the presence of a 2nd circuit, a closed combustion chamber and an electronic control system with a remote control included. Despite the "overseas" origin, the model is fully adapted to Russian operating conditions and is designed to operate with a minimum gas pressure and water supply - 4 mbar and 0.1 bar, respectively.

1 Baxi SLIM 2.300 Fi

Best functionality and quality
Country: Italy
Average price: 131 838 rub.
Rating (2019): 5.0

If you are looking for a high quality and modern gas boiler from a trusted manufacturer, then the Baxi SLIM 2.300 Fi is one of the best options. This is the most expensive device in our review, with a price tag of about $ 2,000, which is quite acceptable for those who do not like to skimp on quality.

Double-circuit "Baxi" is able to heat a cottage up to 300 sq. m. with an efficiency factor of 90%. It can work in a closed heating system due to the built-in circulation pump. The built-in expansion tank will maintain the optimal pressure in the heating system, taking in excess when heating and making up for losses when cooling the heat carrier. Baxi SLIM 2.300 Fi is one of the best boilers for underfloor heating.

The material of the primary heat exchanger is the best here - cast iron. As you know, cast iron is resistant to corrosion, durable and reliable. Additional functions include an air vent, safety valve and pump blockage protection.

Baxi SLIM 2.300 Fi is one of the best selling floor standing gas boilers in the middle and high price segment.

The best wall-mounted gas boilers of the condensing principle of operation

During the operation of a gas boiler, condensate forms, which can be used to generate heat energy. This is exactly what happens in boilers of the condensing principle of operation, where additional energy from the condensate is generated using a special heat exchanger (economizer). This will undoubtedly increase the efficiency of the device.

Installing a condensing boiler allows you to save up to 20% on gas bills. Thus, the efficiency of a conventional convection boiler is on average 92%, while a condensing boiler is capable of operating with an efficiency of 109%. True, the purchase of a condensing model will be much more expensive than a convection model and, perhaps, such a decision will be justified when heating sufficient areas.

3 Baxi POWER HT 1.450

Optimum performance and safety
Country: Italy
Average price: 147,000 rubles.
Rating (2019): 4.7

Distinctive characteristics of the model are high power indicators of 45 kW, efficiency of 107.5% and the ability to maintain 100% power when the inlet pressure drops to 5 mbar. The device implements all modern protection methods, including protection against freezing, overheating, as well as gas control and a self-diagnosis system. The built-in microprocessor constantly monitors the status of the sensors and in the event of abnormal situations (for example, a drop in water pressure, overheating or cut off the gas supply), it automatically turns off the boiler. It is also worth noting the presence of an auto-ignition, an air vent and the ability to connect a warm floor.

Baxi POWER HT 1.450 is one of the most reliable premium floor standing boilers. The obvious disadvantages of the device include only the high price.

2 Baxi Duo-tec Compact 1.24

Profitable price. Minimum consumption of liquefied gas
Country: Italy
Average price: 52,500 rubles.
Rating (2019): 4.7

Baxi Duo-tec Compact 1.24 is one of the most affordable condensing gas boilers. Despite the low price, the power of the device is 24 kW with an efficiency of 105.7%. This is an excellent model for installation in a country cottage or summer cottage, since the boiler can operate on liquefied gas with a minimum consumption of 1.92 kg / h. If desired, Baxi Duo-tec Compact 1.24 can be connected to the underfloor heating system. The built-in expansion tank will compensate for the expansion of the coolant. The Duo-tec Compact series is characterized by easy installation, simple operation and the ability to adapt to the gas quality. They work with a power modulation ratio of 1: 7.

It is a pity that the boiler is single-circuit and can only be used for heating system.

1 Protherm Lynx condensing

Combination of high power and compactness. Auto control
Country: Slovakia
Average price: 57,000 rubles.
Rating (2019): 4.8

In Europe, traditional boilers are practically not used - they were replaced by condensing units like Protherm "Lynx". Models of this line have been produced since 2002 and are still in demand on the market. There are a lot of reasons for the popularity: here is the affordability - hinged condensing boilers with similar characteristics from competitors are 1.5 times more expensive, and rich equipment, and still relevant design.

The system of forced removal of combustion products allows the device to be mounted indoors without a chimney. Fuel consumption is 3.2 cubic meters. m / hour and gives savings of the order of 20 - 30% in comparison with convection devices. Thanks to two preset modes and an automatic control system with an electronic display, adjust in a private house desired temperature is not difficult at all. Additionally, the developers have provided the ability to connect an external controller. Users do not complain about any breakdowns, which allows us to judge the high reliability of the Lynx.

The best double-circuit boilers

When choosing a double-circuit boiler, like a single-circuit boiler, you need to pay special attention to power. If the occupants plan to take a bath frequently, minimum power equipment must be at least 18 kW, if the shower is a priority, then it is allowed to install a less powerful unit - from 10 kW. Even before buying, it is advisable to check if the manufacturer has skimped on the circulation pump, safety valve, diaphragm expansion tank and fittings in the kit.

3 Bosch Gaz 6000 W WBN 6000-18 С

Patented heat exchanger design. Low noise level
Country: Germany (produced in Russia)
Average price: 29 100 rubles.
Rating (2019): 4.5

Dispensing hot water usually takes a long time. If you do not want to put up with such inconvenience, take a look at the Bosch Gaz 6000 W WBN 6000-18 C boiler. Its plate heat exchanger is designed in such a way that water is heated in a matter of seconds. The presence of two separate heat exchangers makes the boiler more efficient (30 ° - 8.6 l / min, 50 ° - 5.1 l / min) and not demanding on water quality.

Among other advantages of heating equipment, one should note the minimum noise level - the sound of a working boiler is compared by many users to the noise of a computer or refrigerator. Efficiency is another Bosch feature. It is proposed to provide it by switching on the "Eco" mode, which provides for heating water only when it is taken. If the most flexible automatic regulation is required, it is possible to connect external regulators to the built-in automatics, allowing the system to be controlled remotely.

2 Ariston CARES X 15 FF NG

Fine temperature setting. Sophisticated security system
Country: Italy
Average price: 35,500 rubles.
Rating (2019): 4.7

The Ariston CARES series are the most compact traditional and wall-mounted gas boilers. The 15-kilowatt tube is intended for installation in heating systems of small private houses, summer cottages and apartments, in the limited space of which its dimensions - 400x700x319 mm - take root very successfully. And it is very handy that the setting of the unit allows you to set the temperature of the heating circuit with an accuracy of 1 °, thereby providing an ideal microclimate in a small room.

The design is assembled on a modular basis, due to which the number of threaded connections - points of potential leaks - has become minimal. Built-in safety systems such as gas control, anti-freeze mode, safety valve are responsible for the smooth operation and increase the safety of the device. And at the same time, the manufacturer provides all the necessary options for comfortable operation - a large electronic display, auto ignition, status indication and the ability to connect external control. Of course, this unit deserves a place in our rating!

1 Rinnai RB-207RMF

The best digital technologies. 18 Japanese patents
Country: Japan
Average price: 52 800 rubles.
Rating (2019): 4.9

The Japanese are not in vain known as techno-freaks - they even managed to fill the Rinnai RB-207RMF gas boiler with the most modern electronics. It is made unique, first of all, by the algorithm for automatically maintaining the optimal ratio of the gas-air mixture in the working chamber. The process is controlled by a “brain” with sensory sensors. This achieves an unprecedentedly wide range of output power - from 17 to 100% and, as a result, a decrease in gas consumption and an increase in the life of the primary heat exchanger.

The model can be controlled from the "Standard" modification panel (supplied in the basic kit), "Deluxe" or Wi-Fi. With its help, you can program an individual heating and hot water supply mode, which will be maintained in automatic mode, depending on the indicators of the sensors outside and inside the building. Changes in the settings are duplicated by the voice navigator. Two microprocessors are responsible for safety at once, controlling and correcting each other's work. This is not a boiler, but a space rocket, not otherwise!

Heating a room is one of the first questions that arises when building a home or production area. And also for those who do not want to depend on centralized heating. To achieve these goals, you should select a suitable boiler. Before giving preference to any model, you need to take into account the size of the heated areas, the need for hot water or connecting underfloor heating.

We have selected the top 10 best boilers based on customer feedback. This rating presents not expensive and advanced models that correspond to the price-quality ratio and are the most popular among users in 2018 - 2019.

10 Navien DELUXE 24K

Small size (695x440x295 mm) and weight (28 kg) allow you to place it even in a small apartment kitchen. A closed combustion chamber makes it possible to work without a special hood, and electric ignition will allow you to forget about matches.

The unit is protected from interruptions in voltage and pressure in the system with a special chip, which is triggered when there are deviations by 30% from the norm. Navien DELUXE 24K is designed to heat water at a rate of 13 l / min. Switching between the column and the boiler can be automatic or manual.

The remote control is fully Russified and facilitates control and configuration. An economical mode is provided, which can be turned on during the absence of the owners of the house to maintain heat. If necessary, all components are readily available in specialty stores.

Pros:

• Remote control.
• Operational reliability.
• Economical gas consumption.
• Rapid heating of the room.

Minuses:

• Manual regulation of the pressure in the system.
• A bit noisy.

9 Buderus Logamax U072-12K

The boiler is suitable for any premises due to its closed combustion chamber and compact dimensions. In it, you can set the type of smoke exhaust depending on the room (3 options are possible).

A set of safety devices will ensure reliability and safety. It is not sensitive to pressure and voltage drops in the network. Thanks to the built-in temperature sensor, the boiler is protected against frost. Stable combustion is ensured by the impulse tube.

Despite the low gas consumption, Buderus Logamax U072-12K provides high performance. The control unit with electronic display makes the setting more convenient and easier. It is not only easy to install and configure, but also easy to operate.

Pros:

• Easy installation and setup.
• Protective functions at a high level.
• Ease of maintenance.
• Quiet work.

Minuses:

• There is no weather-dependent automation.
• There is no possibility of connecting underfloor heating.

8 Baxi MAIN 5 24 F

Small size and classic white color allow you to hang the boiler even in the kitchen, without getting out of the general style. It heats water and room quickly and quietly. The desired temperature can be set in the settings. But to turn on the heating, you need a sufficient water pressure. It has the ability to connect underfloor heating.

Baxi MAIN 5 24 F is very easy to operate thanks to its intuitive operation. It contains a display and buttons that will help you adjust and configure the desired mode.

The safety of the boiler is at a high level. Overheating, frost protection and pump blocking functions ensure trouble-free operation. And self-diagnosis will indicate an error in operation.

Pros:

• Multifunctional control.
• Economical fuel consumption.
• Doesn't take up much space.
• Self-diagnosis function.

Minuses:

• Doesn't work without light.
• With a low pressure, it does not turn on water heating.

7 Protherm Panther 25 KOO

Single-circuit gas boiler designed to be mounted on the wall. The boiler has the ability to connect a stationary boiler or underfloor heating. Thanks to the room thermostat, an economical fuel consumption is achieved. And the boiler control system Protherm Panther 25 KOO facilitates operation.

Automated operation control, temperature control and equipment self-diagnostics will be provided by a special microprocessor. The safety system will prevent overheating, freezing and short circuits due to voltage surges. The quality materials of the boiler parts make it possible to work in rooms with high humidity.

Pros:

• Ease of operation.
• Easy installation.
• Process automation.
• Working in high humidity conditions.

Minuses:

• Does not start on its own after a power outage.
• Requires annual preventive maintenance.

6 Bosch Gaz 4000 W ZWA 24-2 A

The boiler is designed for heating and water heating systems. Thanks to the ability to adjust its power, you can adjust the desired water and heating temperature. A built-in three-speed pump will ensure constant water circulation in the system. Automatic setting of work facilitates operation. It is possible to connect external programming units, a thermostat and a weather-dependent regulator.

Thanks to the closed chamber, it works almost silently. Bosch Gaz 4000 W ZWA 24-2 A is designed for heating residential and industrial areas up to 240 m2. After a little readjustment, it can run on liquefied gas.

Pros:

• Unpretentious in everyday life.
• Acceptable price.
• Possibility of water heating.
• Simple and convenient control.

Minuses:

• Powered by electricity.
• No stabilizer included.

5 Protherm Bear 20 KLOM

Stationary gas boiler, which is designed to be installed on the floor. The modulating burner can be used to regulate the power of its operation (max 17 kW). Despite the economical fuel consumption, they achieve high heat transfer (efficiency up to 92%). In the Protherm Medved 20 KLOM boiler, it is possible to adjust both natural and forced removal of combustion products. A stationary boiler can be connected to provide hot water.

A built-in sensor monitors electric ignition and the presence of a flame. The control system with an electronic display will not only help to set the comfort mode, but will also indicate an error code during self-diagnosis. Overheating protection and frost protection prevents the normal functioning of the boiler from being disturbed.

Pros:

• Flame control.
• Convenient management.
• Easy connection.

Minuses:

• There is no DHW circuit.
• The water circulation pump is not included.

4 Baxi SLIM 1.300 i

Floor standing boiler has established itself as unpretentious and reliable. It is designed for space heating and underfloor heating. Due to the open combustion chamber, a stationary chimney will be required. The possibility of connecting an external control will facilitate operation.

Due to the built-in protection functions (error indication, self-diagnostics) Baxi SLIM 1.300 i will work reliably for a long time. It is possible to use a remote control with a climatic regulator, which is purchased separately. To provide hot water, a stationary boiler is provided. If desired, it can be reconfigured to use liquefied gas.

Pros:

• Reliable in work.
• Compact size.
• Easy control.
• Possibility of connecting a boiler and underfloor heating.

Minuses:

• The ignition unit is weak.
• Slightly overpriced.

3 Ariston CLAS B 24 FF

The compact dimensions of this boiler and the possibility of being placed on the wall make it possible to install it even in a small room. It is designed for heating and heating water. The heating rate of running water is approximately 20 l / min. A built-in 40-liter stainless steel boiler will provide a constant supply of hot water. The conveniently located digital display makes it easy to control the operation of the boiler.

The Ariston CLAS B 24 FF has a closed combustion chamber and an internal fan that takes air for ignition not from the room, but from the street. As a result, it uses less fuel and provides good traction. Such a boiler does not require additional ventilation, so it can be installed in multi-storey buildings.

Pros:

• Built-in boiler.
• Simple controls.
• Economical gas consumption.
• Not noisy.
• Low emission of waste into the atmosphere.

Minuses:

• No operating programming mode.
• No filter at the cold water inlet.

2 Vaillant atmoVIT VK INT 324 1-5

The floor-standing boiler is designed to operate on natural or liquefied (retrofitting) gas. High power allows you to heat not only living quarters, but also production areas up to 320 m2. For hot water supply, it is possible to connect a boiler.

A cast iron heat exchanger in 5 sections will provide reliability and increase the service life (due to the fact that cast iron is 2 times less susceptible to corrosion than steel). For stable operation from the mains, the installation of a voltage stabilizer is required.

Since the Vaillant atmoVIT VK INT 324 1-5 boiler has an open combustion chamber, it is necessary to install a vertical chimney for the natural removal of combustion products. The control system with display makes it easy to set up and monitor the operation of the boiler.

Pros:

• Possibility of connecting a boiler.
• Gas control system.
• Automatic diagnostics.
• Reliable operation.

Minuses:

• Expansion tank not included.
• Heavy weight (99.9 kg).

1 Viessmann Vitogas 100-F GS1D871

Single-circuit powerful boiler, designed for heating housing and industrial premises up to 330 m2. It belongs to the category of high performance floor standing boilers. Despite the atmospheric combustion chamber, it is very quiet in operation. The premix burner reduces emissions and makes it environmentally friendly.

The reliability of the components and the protection programs mean a long service life of the boiler. Thanks to the cast iron surfaces, it can work at low temperatures and is not afraid of condensation. Viessmann Vitogas 100-F GS1D871 easy to operate, thanks to the automation of all processes. The operation is carried out using the digital Vitotronic 100 controller. On its basis, high-performance multi-boiler systems can be created.

Pros:

• Full automation of processes.
• Low temperature operation.
• Large heating area.
• Quiet operation.

Minuses:

• No display.
• Operation with a remote thermostat is not provided.