When installing a heating system in the house, the owners are repelled by a number of factors. This is the availability of communications, and the price for a heat source, and the climatic conditions of the region, and the safety of operation, etc. At the same time, it is important to remember about efficiency so as not to throw money down the drain during the cold season. It should be noted that even the most economical boiler will not save the owners if the house is poorly insulated and the heating system is illiterate. When choosing a heater, the price of the boiler is often the main factor. But momentary benefits can turn into serious expenses for gas or electricity. Provide a modern home with warmth and hot water autonomously capable of gas and electric boilers. How to choose the most economical option?

• In settlements where there is a gas main, it is economically feasible to purchase gas boilers. At the first stage of purchase and connection, home owners will have to face serious investments. The boiler itself will cost a tidy sum, but most of the time, nerves and money will have to be spent on designing and supplying a gas pipeline to the house. Additional funds will be needed to create effective ventilation, organize space in the boiler room in accordance with regulatory documents. Frequent uninvited guests will be gas workers and firefighters. But in the future, it will be possible to save a lot when heating the house during the heating season.
• Not everywhere near the house there is a gas main. In this case, you have to choose alternative heat sources. One of the easiest and safest ways to heat your home is to use electric boilers. Since electricity is available in most settlements, the homeowner will only have to choose a device with optimal power and efficiency.

When calculating, you should use a simple formula. It is generally accepted that for heating 10 sq. m of a house 3 m high requires 1 kW of energy. Therefore, for country houses up to 100 sq. m. an electric boiler with a maximum power of 10 kW is suitable. It is better to have a small margin of a few kilowatts, but you should not get too carried away either. Due to the frequent switching on and off of the boiler, not only will the load on the heating elements increase, but also the consumption of electricity will increase. In order to roughly calculate how much electricity heating will cost, you should determine the average daily operation of the boiler. To do this, the power of the device is multiplied by the number of hours of continuous operation and divided by 2. We multiply this figure by 30 days, and then by the number of months of the heating season. It remains to find out the tariff for electricity and multiply by the resulting consumption. The percentage of error depends on the vagaries of the weather, but usually it does not exceed 20% of the calculated value.

Our review includes the most economical gas and electric boilers. The rating is based on an analysis of technical characteristics and taking into account feedback from compatriot homeowners.

The most economical gas boilers

Gas boilers are widely used in the heating systems of private houses, shops, auto repair shops, etc. They allow heating large areas, while simultaneously providing people with hot water.

5 Lemax Premium-10

The best single-circuit boiler
Country Russia
Average price: 16,510 rubles.
Rating (2019): 4.0

Domestic gas boilers successfully compete in the domestic market due to their affordable price and efficiency. A striking example is the Lemax Premium-10 model. This single-circuit device is designed for heating houses up to 100 sq. m. The manufacturer managed to achieve high efficiency (90%), which allowed to reduce consumption natural gas up to the level of 0.6 cu. m per hour. The use of high-quality steel with anti-corrosion heat-resistant coating helped to reduce the cost of the device.

A distinctive feature of the boiler is non-volatility from the mains, which gives another article of savings. The Italian gas burner device helps to optimize the operation of the boiler. Domestic consumers note such advantages of "Premium-10" as availability, economy, compactness, safety and reliability. In order for the device not to fail in a frosty winter, it is necessary to carry out maintenance in a timely manner.

4 Buderus Logamax U072-24

Copper heat exchanger. Ease of operation and maintenance
Country: Germany (produced in Turkey)
Average price: 28,800 rubles.
Rating (2019): 4.2

Traditional boilers are not as economical as condensing boilers, but they are much more affordable. And if the device was developed by German engineers Buderus and Bosch, then there is no doubt about its effectiveness. Thanks to its compact dimensions of 40x30x70 cm, a closed combustion chamber and minimal noise (38dBA), the unit can be installed directly in the kitchen, while it is able to heat an area from 70 to 240 square meters. m.

The heat exchanger in U072-24 is made of copper. With the same power ratings with cast iron and steel models, copper boilers are considered more economical, since they provide accelerated transfer of the heat of combustion of the fuel to the coolant circulating through the pipes. Other product benefits - built-in circulation pump at 3 speeds, reliable electronic control and easy maintenance. There is also a minus - some owners blame the autodiagnostic system for deducing the same error, which sometimes requires a flashing of the board to eliminate.

3 Navien GA 35KN

The best economical powerful boiler
Country: South Korea
Average price: 37,050 rubles.
Rating (2019): 4.7

Heating large houses, offices and shops with minimal cost allows gas boiler NAVIEN GA 35KN. This two-circuit model of convection type is capable of heating a building up to 350 square meters. m., providing people with heat and hot water. The floor appliance has a sufficiently high efficiency (91.4%), which allows minimizing natural gas consumption to 3.34 cubic meters. m per hour. The heating device can also be operated from liquefied gas, the boiler needs to be connected to a single-phase power supply. The consumer can also save on the purchase of the boiler itself, since the model compares favorably in cost with its competitors.

Owners of cottages, shops, auto repair shops note such positive characteristics of the NAVIEN GA 35KN gas boiler as efficiency, affordability, and high quality. Of the minuses, it is worth highlighting the noise, the need to use only original spare parts.

2 Vaillant ecoTEC plus VU INT IV 306/5-5

Actual annual savings of 20%. Modulating burner
Country: Germany
Average price: 92,650 rubles.
Rating (2019): 4.7

Vailant is one of the best European manufacturers of high-tech products for heating and cooling residential buildings. In its assortment there are many reliable and high-quality models of boilers, which include the wall-mounted unit of the latest generation ecoTEC plus VU INT IV. Users speak of it exclusively in a positive way, noting that the installation of a boiler in their homes has led to at least 20% savings in operating costs. They consider the layout of the heating system with this boiler and underfloor heating to be especially successful - it is in this version that it pays off as quickly as possible.

One of the factors for economical operation of the boiler is the use of a modulating burner. Its introduction into the design provides a smooth adjustment of the operating power in a wide range from 16 to 100%, depending on the need for heat. By minimizing the frequency of on and off cycles, longer maintenance-free and overall unit life is ensured. Its only drawback is its high cost.

1 BAXI Duo-tec Compact 1.24

High efficiency. Weather-dependent automation
Country: Italy
Average price: 52,750 rubles.
Rating (2019): 4.9

The most noticeable gas savings are provided by condensing units, which are capable of extracting thermal energy from flue gases, irretrievably lost in convection-type devices. The boilers of the Duo-tec Compact line are no exception, the efficiency of which, according to some sellers, reaches 107.6% at a load of up to 30%. And although they exaggerate (based on the technical characteristics, the boiler gives up to 91.2%), you must admit that for gas equipment this indicator is very good.

The device becomes even more economical due to the design. A serpentine stainless steel heat exchanger, an adaptive combustion and draft control system allow you to minimize the cost of heating a house ranging from 100 to 240 square meters. m. It is worth noting the presence of built-in automation for changing the temperature of the coolant depending on the weather outside. Thus, maintaining a stable micro-mode is inexpensive in terms of time and effort, which is also an indirect indicator of efficiency.

The most economical electric boilers

Electric boilers can be used as a backup or main source of thermal energy. They are used in small buildings, but with the help of electrical appliances, you can achieve complete automation of the heating system.

5 ZOTA 9 Lux

The best ratio of price and functionality. The presence of a chronothermostat
Country Russia
Average price: 17,900 rubles.
Rating (2019): 4.2

Looking at the cost of this electric boiler, someone may doubt its reliability. However, after studying its characteristics, we did not reveal any obvious design flaws. Moreover, in terms of the number of functions, it has no equal even among more expensive models. The 9-kilowatt electric boiler, designed to heat 90 sq.m., has a number of "luxury" features: electronic control based on the operation of 5 controllers, protection of the control unit against overvoltage up to 400V, weather-dependent auto-correction of the coolant temperature, the function of connecting a warm floor and etc.

From the point of view of the efficiency of the heat generator, the function of the chronothermostat is interesting - with its help, the user sets the program at what time the house should be warm, and at what time the microclimate can be made cooler. Such a thermostat with a timer is very convenient for setting up the operation at the most favorable electricity consumption rate - night. In fairness, we also mention the disadvantages of the device: in particular, users warn about the high cost of replacing failed heating elements, so it is better to start operation before reading the instructions.

4 Protherm Skat 6 KR 13

Intelligent connection of heating elements
Country: Slovakia
Average price: 35,700 rubles.
Rating (2019): 4.5

Consumers had a lot of time to check how reliable the Slovak Skats are in real conditions: they have been produced in their homeland since 1992, and in Russia, according to the manufacturer, more than 250 thousand units have already been sold. We did not find negative reviews and explicit criticism on the network, and even on specialized forums, where a rather skeptical attitude towards budget brands reigns, they are in good standing. And no wonder - the wall-mounted heater, among other advantages, is distinguished by its simplicity and versatility of installation (there is no need to maintain a 3-phase network, you can connect weather-dependent automation, storage boiler hot water supply and organize a cascade heating system).

The developers took a very responsible approach to the issue of the efficiency of the model, providing a high (99.5%) efficiency and providing for stepwise switching on of power with a step of 1 kW. At the same time, the heating elements are switched alternately, and the load on them is distributed evenly. Protective systems from overheating and freezing, as well as pump protection, are responsible for the durability of the product - according to technical characteristics, it is at least 10 years.

3 EVAN Warmos-IV-9.45

Restyled model with automatic power mode selection
Country Russia
Average price: 22,000 rubles.
Rating (2019): 4.5

Evan JSC turns 23 in 2019, and during this time the company has mastered the production of a wide range of heating equipment. This means that the entire heating and hot water system, except perhaps for pipes and valves, can be equipped with its products. Of particular interest to potential buyers is the updated electric unit of the Warmos-IV series with a capacity of 9.45 kW, capable of heating a house up to 94.5 square meters. m.

In order to optimize energy consumption, the mechanical thermostat was replaced with an electronic thermal control system. Now the boiler “by itself” determines how many heating elements out of 3 need to be started in order to ensure the specified temperature regime with an accuracy of 1 °. If necessary, manual power limitation can also be activated. Self-diagnosis functions, an improved control panel with LED indication and the ability to connect remote control modules allow us to call the boiler modern, economical and, most importantly, accessible to a wide consumer circle.

2 Vaillant eloBLOCK VE 12

The most economical single-circuit boiler
Country: Germany
Average price: 41,200 rubles.
Rating (2019): 4.8

The most economical single-circuit boiler in our review was the Vaillant eloBLOCK VE 12 model (99% efficiency). An electric appliance is able to heat a house up to 120 square meters. m in the presence of a three-phase network. In addition to high efficiency, the device boasts an elegant appearance. There is only one key for adjustment, everything else is done for a person by a microprocessor, sensors, sensors, etc. Economical energy consumption is achieved through a smooth increase in power, the presence of additional options such as anti-freeze mode, summer operation, weather-compensated control. The device can be equipped with a remote control, which allows the owners to get straight from the cold to a warm house.

Users speak flatteringly about the efficiency of the Vaillant eloBLOCK VE 12 electric boiler, its simplicity and neat appearance. To increase the service life, it is necessary to connect a voltage stabilizer.

1 ACV E-Tech S 240

The most economical double-circuit boiler
Country: Belgium
Average price: 277,000 rubles.
Rating (2019): 4.9

The most economical double-circuit boiler is the premium model ACV E-Tech S 240 (99% efficiency). Due to the high thermal power (28.8 kW), the device will cope with the heating of a large house, providing its residents not only with heat, but also with hot water. This high-performance heating device is controlled by electronics that help minimize consumption electrical energy. The stainless steel heat exchanger also contributes to economical operation. Reduce heat loss hot water the boiler made according to the principle "Tank in a tank" helps. Electronic control allows you to increase the service life, prevent the formation of scale by optimizing the heating modes.

Owners country houses and cottages distinguish such advantages of the ACV E-Tech S 240 electric boiler as efficiency, reliability, versatility and noiselessness. The main disadvantage of the device is the high price.

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A gas double-circuit boiler is an excellent alternative if there is no desire to connect to centralized heating. Such a device can be installed both in a city apartment and in a private house and use the advantages of its operation all year round. Our ranking of the most best models double-circuit boilers will help you make the right choice.

Recently, double-circuit heating boilers have become relevant: they can simultaneously heat the building, supplying it with warm water. There are two coils in the design of the model, each of them is responsible for its own function. To answer the question of which wall-mounted gas boilers are better, consider the main criteria for selecting appliances:

1. Combustion chamber type. Among the products you can find models with an open and closed combustion chamber. The open type is used for buildings with a large area, as it takes air from the room. The closed type is suitable for apartments and country houses where a chimney is not required.
2. Power. It is calculated based on the area of ​​\u200b\u200bthe space, the height of the ceilings, the number of windows. The more ways of heat loss, the more powerful boiler is needed.
3. Performance. The more hot water intake points in the house, the higher the boiler performance should be.
4. Manufacturer. There are a number of models of domestic and foreign production on the market, which have equal quality indicators. It is better to give preference to trusted brands.
5. Service and Warranty. When choosing a boiler, it is worth considering the risk of breakdown and the possibility of purchasing spare parts in the region of residence.

Expert advice

Mikhail Voronov

Specialist in the field household appliances, electronics, construction tools, goods for cars, sports and recreation, beauty and health.

The modern most popular models can be considered in our rating with overview characteristics.

Rating of double-circuit wall-mounted gas boilers

The model from the Leberg brand opens our selection of the best wall-mounted gas boilers. This appliance is a convection boiler with a power of 20 kW. The design provides for a closed combustion chamber, a built-in circulation pump, an electronic control panel. The device also has a built-in expansion tank with a volume of 6 liters.

The maximum pressure for the heating circuit is 3 bar, while the maximum pressure for DHW is 6 bar. Of the functions, this boiler is equipped with flame modulation, auto-ignition, pressure gauge and thermometer. The user can be sure of their safety thanks to the function of gas control, anti-freeze, as well as protection against blocking the pump. Leberg Flamme 24 ASD is a wall-mounted boiler of good quality and workmanship, suitable for the home.

• Simplicity of design and management;
• Reliability;
• Availability of all necessary protective functions;
• Ability to adjust power.

• Not detected.

Gennady, 52 years old

We put this boiler to replace the old one, which worked out its 15 years. Never regretted this device. Firstly, it is domestically produced, reliable, and the quality of iron is at its best. Secondly, it perfectly fulfills the stated functions: I heat a two-story a private house, water heats also perfectly.

The seventh position in our hit parade for the best gas boilers is occupied by a model from firm Navien. This is a two-circuit unit with a maximum heating power of 13 kW. The device allows you to heat a room up to 130 square meters. The design includes auto-ignition and flame modulation. The combustion chamber is also closed here, which ensures the safety of the user.

Important! Modern boilers are equipped with a special function that turns off the unit at the time of an emergency emergency.

Built into the device expansion tank with a volume of 6 liters, the weight of the boiler is relatively small - 28 kg. The chimney diameter is 100 mm, the unit is equipped with frost protection. The manufacturer claims that the buyer will be able to use hot water even at low gas pressure. In addition, in the event of power outages in the boiler, a special chip is triggered to ensure that there are no breakdowns in the future.

• Availability;
• Economical gas consumption;
• Quiet operation;
• The set includes a remote control panel.

• Small delays when turning on.

Maria, 38 years old

Last year, for the first time, they abandoned central heating and installed their own double-circuit boiler Navien. The device heats a square of 80 sq.m., while hot water is coming no problem. I like that there is a remote control with which we can set programs for work.

On the sixth line of our rating, a gas wall-mounted boiler from Mora-Top settled. This is a convection model with a power of 23 kW, on the front panel of which the most necessary levers are located: adjusting the temperature of water and heating. There is also a small display showing the necessary information.

Hinged gas boiler Meteor Plus PK24KT is a convenient and practical solution for a private home. A closed chamber, flame modulation, the presence of a circulation pump - all this allows you to ensure safety during operation. The expansion tank has a volume of 6 liters, and the maximum performance at a water temperature of 35 degrees is 9.4 liters of water per minute. The boiler operates on single-phase mains voltage.

• Economical gas consumption;
• Electronic control on the display;
• Autodiagnostics;
• High level of efficiency - 90%.

• Big weight.

Maxim, 36 years old

I bought this model for one simple reason - because of the low gas consumption. The device works only with grounding, so it is safe to use. Ease of use also conquered - you set the temperature on the display, and everything functions. The boiler is easy to maintain - you unscrew a couple of bolts from the side, and the panels are removed.

The next in our top wall-mounted double-circuit gas boilers is a device from the company Oasis. The maximum heating power of this model is 18 kW. The design has auto-ignition, as well as a definite bonus - the ability to connect underfloor heating. This unit is able to heat an area up to 180 sq.m.

Advice! When installing a gas boiler, hot water intake points must be located in close proximity.

The Oasis convection boiler is electronically controlled and has a closed combustion chamber. The mains voltage must be single-phase. The temperature range during operation varies between 30-80 degrees.

• Attractive appearance;
• Frost protection;
• Fast and high-quality water heating.

• Lack of remote control.

Anna, 30 years old

My husband and I moved to Vacation home where there was no heating at all. We put this boiler and immediately appreciated its advantages. It heats a large area of ​​the room, and is also very easy to maintain. In the event of a problem, the husband himself opened the panel and fixed everything.

On the fourth place of the top of the best gas double-circuit wall-mounted boilers is a representative of the Lemax company - the best domestic heating and hot water supply device. It should not be in vain to assume that the Russian manufacturer offers low-quality products: Lemax is a combination of modern safety requirements with German and Italian developments.

High efficiency is achieved through a closed combustion chamber and a coaxial chimney with a turbine. According to the review of this device, it is equipped with two independent circuits based on brass coils. The power range is 11-32 kW, which makes the model productive. The boiler is compatible with a large number of modern thermostats and control systems, which is beneficial when maintenance.

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• High thermal conductivity;
• Strength;
• Corrosion resistance;
• Compactness;
• Large heating area - up to 300 sq.m.

• High cost compared to similar models.

Eugene, 45 years old

Installed this boiler. Russian production, because according to reviews it is the best in its segment. It suits me that all the necessary information is displayed on the display, and even a pensioner can master simple controls - this is how I taught my dad to use the device when we are not at home.

Opens the top three wall-mounted gas boilers for heating a private house manufacturer Baxi. This boiler is a combination of Italian quality and maximum efficiency at a reasonable cost. Distinctive feature device - a removable digital panel, which is also a temperature sensor in the room. This feature allows the owner of the boiler to decide where the control panel will be located.

In terms of reliability, this unit exceeds all expectations: a 60-liter boiler, LCD display, stainless steel dividers, as well as smooth electronic ignition. The unit can be reconfigured to work with liquefied gas, which is also convenient for different conditions life.

• Brass hydrogroup;
• Rich functionality;
• Possibility of programming;
• Button control;
• Premium boiler.

• High price

Vladimir, 49 years old

Despite the high price of this device, I still decided not to save on safety and quality. The boiler has been heating my house for the third year now, it works very quietly, and also turns off in case of emergency. The boiler allows you to set the exact temperature, which is very convenient when a large family lives in the house.

Numerous reviews of gas boilers allowed us to place a model from the Ariston brand on the second line. Stylish appearance - the white body is combined with a silver electronic type control panel. Buyers are also attracted by the affordable price and basic features without unnecessary bells and whistles. This device is suitable for work in rooms up to 220 sq.m.

Updated: 16.09.2018 14:39:45

Judge: Boris Mendel

*Overview of the best in the opinion of the editors of the site. About selection criteria. This material is subjective, is not an advertisement and does not serve as a guide to the purchase. Before buying, you need to consult with a specialist.

In Russia, gas is the most affordable type of fuel. That is why the owners of houses, cottages and small businesses prefer to heat the premises with a gas boiler. The old Soviet cast-iron devices have been replaced by elegant and lightweight models. Foreign brands have penetrated the domestic market, which are seriously competing with Russian equipment. On the one hand, the range of boilers has expanded, and on the other hand, buyers have problems choosing the right model. Expert recommendations will help you find the best option for your home in the sea of ​​​​gas boilers.

How to choose a gas boiler

1. The number of contours. The choice should begin by determining the number of contours. Single-circuit models are able to provide heat to the heating system. To heat the water, you will have to buy an additional boiler. But double-circuit boilers simultaneously heat the house, providing residents with hot water.
2. Mounting. According to the type of installation, floor and wall devices are distinguished. Floor-standing models boast higher power. However, they are bulkier and heavier. Wall-mounted boilers look more elegant, they save space in the boiler room, which is important in cramped back rooms.
3. Power. The most important parameter of the heating device is thermal power. For houses with good insulation and standard rooms (height 3 m) it is customary to determine the power indicator using a simple formula. With the help of 1 kW of heat energy, an area of ​​​​10 square meters can be heated. m. In old houses with poor thermal insulation, it is necessary to install a boiler, the power of which is 20-50% higher than the calculated one. A double-circuit boiler is also selected by about 20% more powerful so that the heating of hot water does not adversely affect the temperature of the coolant. For example, for heating a dacha with an area of ​​​​70-80 square meters. m will be enough to buy a boiler with a thermal power of 8-12 kW. Large house or cottage with an area of ​​more than 200 sq. m is able to heat the device with a power range of 22-35 kW. Experts do not advise chasing too productive models; frequent turning on and off the burner will strain the residents.
4. Safety. Gas equipment refers to devices dangerous to human life. Therefore, it is necessary to study the security systems available in the boiler. The standard set of a modern gas boiler includes gas control, protection against overheating and pump blocking, self-diagnosis, and a safety valve.

Rating of the best gas boilers

Nomination	place	Name of product	price
The best inexpensive wall-mounted gas boilers	1		40 019 ₽
	2		35 402 ₽
	3		28 250 ₽
	4		32 807 ₽
The best wall-mounted gas boilers in terms of price - quality ratio	1		112 824 ₽
	2		80 749 ₽
	3		55 480 ₽
The best inexpensive floor gas boilers	1		36 575 ₽
	2		20 600 ₽
	3		35 190 ₽
The best floor gas boilers in terms of price - quality ratio	1		117 773 ₽
	2		136 000 ₽
	3		83 836 ₽
	4		71 215 ₽
The best floor-standing gas boilers of the condensing principle of operation	1		163 431 ₽
	2		117 080 ₽
The best wall-mounted gas boilers of the condensing principle of operation	1		88 099 ₽
	2		69 213 ₽

The best inexpensive wall-mounted gas boilers

The most compact and cheapest are wall boilers. In the public sector, models for small houses and summer cottages are presented. Experts have identified several effective heating devices.

The Baxi ECO Four 24 F gas boiler is perfectly balanced in all main parameters. It is the best option for providing heat to private homes or offices. Despite the high price, the model is in steady demand in the Russian market. With a power of 24 kW and an efficiency of 92.5%, the heater economically consumes blue fuel, both natural gas (2.73 cubic meters / h) and liquefied gas (2 kg / h). Experts gave the boiler a palm in our ranking for comfort and safety at work. A warm floor can be connected to the heater, there is a connector for connecting an external control.

With the help of a gas boiler, you can heat a house with an area of ​​​​more than 200 square meters. m. Users in the reviews note the reliability and unpretentiousness of the device, nice appearance.

Advantages

• quality assembly;
• stylish design;
• unpretentiousness to gas quality;

Flaws

• high price.

The wall-mounted gas boiler Ariston CARES X 24 FF NG has several important advantages. The model successfully combines an acceptable price and a set of technical parameters. The device has a high thermal power (25.8 kW), good efficiency(93.7%), economical consumption of natural (2 cubic meters / h) and liquefied (1.59 kg / h) gas. The double-circuit unit has a closed combustion chamber, and the circulation pump is connected to a single-phase network. The model does not have a separate chimney. Therefore, experts gave the product the second place in the rating.

Homeowners are satisfied with the simplicity and ease of use, the presence of a separate heat exchanger, the winter-summer function. The disadvantages of users include large overall dimensions, the need to install a voltage stabilizer and a water filter.

Advantages

• high efficiency;
• acceptable price;
• application safety;
• economical consumption gas;

Flaws

• electric ignition;
• turns off when the water pressure is low.

Double-circuit gas boiler Bosch Gas 6000 W WBN 6000-12 C is designed for installation in small houses with a total area of ​​up to 100 sq. m. m. It has a low power (12 kW), while gas consumption is economical (natural - 2.1 cubic meters / h, liquefied - 1.5 kg / h). The model is capable of heating water in radiators up to 82ºС, and hot water with a maximum temperature of 60ºС enters the bathroom or kitchen faucet. Of the additional options, the device is equipped only with pump blocking protection. According to the totality of characteristics, experts put the unit on the third line of the rating.

Homeowners praise the boiler for its compactness, quiet operation, and elegant appearance. The disadvantages include the lack of spare parts and a large number of plastic parts.

Advantages

• compactness;
• available menu;
• reliability and practicality;
• economical gas consumption;

Flaws

• difficulties with repair and maintenance.

The domestic development of Lemax PRIME-V32 has the maximum power (32 kW) among budget wall-mounted boilers. The device can be bought by owners of houses and cottages with a total area of ​​​​up to 320 square meters. m. The model was developed taking into account Russian operating conditions, it is not afraid of gas pressure drops. European components are used for manufacturing, so the manufacturer managed to achieve high reliability and durability of its product. Structurally, the heating device has two circuits and a closed combustion chamber. Experts also include a separate chimney to the advantages of the boiler.

Some users regret that the device is not suitable for liquefied gas. Can not boast of the device and functionality. Therefore, he does not fall into the top three of the ranking.

Advantages

• high power;
• reliability;
• unpretentiousness;

Flaws

• modest functionality;
• does not run on LPG.

The best wall-mounted gas boilers in terms of price - quality ratio

Among wall-mounted gas boilers, there are models that perfectly combine reasonable price and high-quality workmanship. Such devices are chosen by the owners of houses and cottages. Here are some interesting patterns.

A prominent representative of the new generation of gas boilers is the Buderus Logamax plus GB172-42 i device. The condensing type device has the highest efficiency of 109%. Thanks to the condensing heat exchanger made of aluminum, the manufacturer managed to achieve a maximum power of 41.9 kW. The compact dimensions and light weight make it possible to mount the unit on the wall. New design, front panel made of impact-resistant glass, economical gas consumption (class A), the ability to work on liquefied gas- all these properties allowed the device to take first place in the ranking.

Experts drew attention to the possibility of remote control via the Internet, which allows the equipment to fit into the concept of "smart home". The only downside is the high price.

Advantages

• unique efficiency;
• condensing heat exchanger;
• compactness and lightness;
• stylish design;

Flaws

• one circuit;
• high price.

The traditional convection principle of operation is used in the Baxi NUVOLA-3 Comfort 240 Fi gas boiler. The device has two heating circuits, which allows not only to heat the premises, but also to heat the water. The power of the unit (24.4 kW) is enough to create an optimal microclimate in a house up to 240 square meters. m. The boiler consumes 2.78 cubic meters. m/h of natural or 2.07 kg/h of liquefied gas. Experts gave the product the second place for the presence of a built-in boiler with a volume of 60 liters, worthy functional equipment. The boiler yielded to the winner of the rating in innovation, the disadvantages include heavy weight and bulkiness.

Users note the stable operation of the boiler, the ability to connect to the "smart home" system. Difficulties arise with programming, there is no wi-fi module in the kit.

Advantages

• works at low gas pressure;
• availability of spare parts for sale;
• quiet work;
• capacious boiler;

Flaws

• complex weekly programming;
• great weight.

Affordable price, efficiency and reliability have become the main factors for getting the gas boiler Vaillant turboTEC pro VUW 242/5-3 to the third line of the rating. Many homeowners of our country managed to appreciate the high quality of workmanship. Reviews are mostly positive. The double-circuit design allows the boiler to be used as a heater or water heater. The model somewhat loses to the leaders in power (24 kW) and efficiency (91%). Therefore, the actual use of the device is possible in houses with an area of ​​​​200-220 square meters. m. The manufacturer has installed 6 degrees of protection, completed the product with electronic control.

A significant disadvantage of the boiler for users was the costly service. The good news is that breakdowns are rare.

Advantages

• reliability;
• electronic control;
• six-level protection;
• acceptable price;

Flaws

• expensive service;
• modest power.

The best inexpensive floor gas boilers

Among floor gas boilers you can find reliable and durable budget devices. Due to their high power, they can be used for heating houses with a total area of ​​​​up to 200 square meters. m. Experts liked the following models.

The German appliance Bosch Gaz 2500 F 25 became the winner of the rating in the nomination of budget floor-standing boilers. Impeccable quality is complemented by high power (25 kW), decent efficiency (92%), built-in automation. The model is best suited for heating a house with an area of ​​​​200-220 square meters. m. It will be convenient for users to control the operation of the heater due to the backlight of the display. Natural gas is used as the main fuel; if necessary, the device can be easily configured to use liquefied gas. The manufacturer also took care of safety. Protection against overheating and freezing, auto-diagnostics will make the use of gas equipment carefree for the homeowner.

Consumers can only complain about the high consumption of natural gas (2.73 cubic meters per hour).

Advantages

• manufacturing quality;
• operational safety;
• built-in automation;
• high power;

Flaws

• increased gas consumption.

Despite the modest power (16 kW) and efficiency (90%), the Lemax Premium-16N gas boiler takes an honorable second place in the rating. A single-circuit device is able to create a cozy atmosphere in a small house up to 160 square meters. m. The advantage of the model, according to experts, is energy independence. This property is appreciated by residents of regions where power outages occur.

Users like the economy of natural gas consumption (1.9 cubic meters per hour), ease of operation, availability of spare parts, low-cost maintenance. Adequate price and reliability add popularity to the boiler. The disadvantages include a minimum of modern features and a rustic design.

Advantages

• low price;
• economical gas consumption;
• simple design;
• energy independence;

Flaws

• lack of modern features;
• humble design.

Experts put the gas boiler Navien GA 23KN on the third line of the rating. This double-circuit model has a thermal output of 23 kW and an efficiency of 91.5%, which allows you to heat houses up to 230 square meters. m. The device runs on natural gas (flow rate 2.24 cubic meters / h), you can also switch to liquefied gas (flow rate 1.96 kg / h). The device is quite comfortable to use, it has auto-ignition, a display, a remote control, an on indication, a pressure gauge, a thermometer, a programmer and flame modulation. Safety is ensured by protection against overheating and freezing, all malfunctions are detected in a timely manner thanks to auto-diagnostics.

Users highlight the combination of price and quality, reliable stainless steel heat exchangers. The downside is the noise of the device and the need to use original spare parts.

Advantages

• combination of price and quality;
• wide functionality;
• stainless steel heat exchanger;

Flaws

• noisy work;
• original spare parts are required.

The best floor gas boilers in terms of price - quality ratio

More complex tasks are able to solve floor gas boilers from the middle price segment. Owners of houses with a total area of ​​​​up to 300 square meters should take a closer look at them. m. Experts have identified several proven models.

The combination of high performance and economical gas consumption have become the main trump cards of the Viessmann Vitogas 100-F GS1D870 gas boiler in the fight for the first place in the rating. With a thermal power of 29 kW and high efficiency (92%), a single-circuit device is able to heat a house with an area of ​​280 square meters. m. Thanks to its compact size, the boiler will fit into small utility rooms, and there will be no problems with installation. Experts note German quality equipment, high reliability and long service life.

Users like the spectacular appearance of the device, economical gas consumption, compactness. Weather-dependent automatics regulates energy consumption taking into account the air temperature outside.

Advantages

• high performance;
• weather-dependent automation;
• compactness;
• economical gas consumption;

Flaws

• one circuit.

The Italian gas boiler Baxi SLIM 2.300 Fi stands out with its elegant appearance. The floor type model has two circuits, which allows you to heat water in a 60 l boiler. Experts note the presence of such modern options in the design as a closed combustion chamber, electronic control. The device can work both from natural (flow rate 3.49 cubic meters / h) and from liquefied (flow rate 2.56 kg / h) gas. The manufacturer equipped his product with a power indicator, a thermometer, a display, and a pressure gauge. The boiler is started using auto-ignition, a warm floor can be connected to it.

Advantages

• high power;
• safe work;
• rich functional content;
• capacious boiler;

Flaws

• high price;
• great weight.

An interesting option for owners of small houses or summer cottages can be the Vaillant atmoVIT VK INT 164/1-5 gas boiler. The thermal power of the device is 16.9 kW, which, combined with an efficiency of 91%, allows you to heat houses up to 150 square meters. m. The experts evaluated the cost-effectiveness of the model. Natural gas consumption is 1.9 cubic meters. m / h, and the consumption of liquefied fuel is at around 1.4 kg / h. Stylish design, low weight (82 kg) and high coolant temperature allowed the low-power device to take an honorable third place in the ranking.

Users note the small overall dimensions of the boiler, the electronic self-diagnosis system and the reasonable price. The disadvantage is the single-circuit design with an open combustion chamber.

Advantages

• acceptable price;
• self-diagnosis system;
• lightness and compactness;
• low fuel consumption;

Flaws

• one circuit;
• low power.

The Ariston UNOBLOC GPV 24 RI gas boiler attracted the attention of specialists at a low price. A device with a power of 24 kW with an efficiency of 90.2% can heat a house up to 220 square meters. m. At the same time, the heating unit consumes only 2.8 cubic meters per hour. m of natural or 2.09 kg of liquefied gas. The temperature range of the coolant is 34-82ºС. The kit comes with an expansion tank and a circulation pump.

The boiler did not get into the top three of the rating due to the single-circuit design, open combustion chamber and limited functionality. So the security system is represented only by a safety valve. Some users liked the simplicity and unpretentiousness of the model, other consumers appreciated the affordable price.

Advantages

• low price;
• economical gas consumption;
• ease of operation;

Flaws

• no modern features;
• minimum level of security.

The best floor-standing gas boilers of the condensing principle of operation

When gas is burned, water is formed, which they learned to use to obtain an additional portion of heat. In condensing boilers, it is possible to raise the efficiency above 100%. Among the floor models, the following devices attracted the attention of specialists.

The Italian gas boiler Baxi POWER HT 1.650 has a high thermal power (65 kW). Thanks to the stainless steel condensing heat exchanger, the efficiency index reached 107.5%. The model has a single-circuit design with a closed combustion chamber. To heat water, natural (flow rate 7.08 cubic meters / h) or liquefied (5.2 kg / h) gas can be used. The boiler is equipped with an informative display, thermometer, pressure gauge, auto-ignition, power indicator. A warm floor can be connected to the heating device, external control can be entered. The security system consists of gas control, auto-diagnostics, protection against overheating, freezing.

Experts call Baxi POWER HT 1.650 the most reliable premium boiler, it becomes the winner of the rating. The only downside is the high price.

Advantages

• high power and efficiency;
• rich equipment;
• reliability and durability;
• safe operation;

Flaws

• high price.

The advantages of the gas boiler Buderus Logano plus GB102-16 experts include high efficiency, low consumption of blue fuel and electricity. When creating a heating device used Hi-tech, which allowed to bring the efficiency to a record high of 108%. Compact size and low weight (52 kg) make it easy to choose a place for installation. Automation helps to maintain the optimum temperature in the heating system, which takes into account the readings of the outdoor temperature sensor.

Experts put the model in second position for a small thermal power of 17 kW, more modest functional content than the leader of the rating. Attracts domestic users single-circuit gas boiler at an affordable price.

Advantages

• lightness and compactness;
• low gas consumption;
• modern automation;
• acceptable price;

Flaws

• low power;
• modest functionality.

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

Wall-mounted gas boilers with a condensing principle of operation are somewhat inferior in power to floor models. But they win in accessibility, compactness and economy. Here are today's best products.

The combination of high thermal power (35 kW) and record efficiency (108.7%) allowed the wall-mounted gas boiler Viessmann Vitodens 100-W B1HC043 to become the winner of the rating. A small lightweight model will fit into the cramped boiler room. All components of the device are available for service, although the device is characterized by reliability and trouble-free operation. Environmentalists pay attention to the low level of emissions of harmful compounds in exhaust gases. Thanks to the variable speed of the fan, it is possible to significantly save on electricity. And gas consumption can be reduced by about 20%.

Users note the ability to adjust power in a wide range (8.8-35 kW), ease of control, and reliable operation of the device.

Advantages

• high efficiency;
• profitability;
• ease of maintenance;
• compactness and lightness;

Flaws

• not detected.

The wall-mounted gas boiler Baxi LUNA Platinum + 1.18 successfully combines ease of operation and the latest technology. The model is designed for small houses, as evidenced by the maximum thermal power (18.4 kW). The single-circuit device is equipped with a closed combustion chamber and a stainless steel heat exchanger. It can operate on both natural gas (1.84 cubic meters / h) and liquefied gas (1.35 kg / h). Yielding to the winner of the rating in performance, the Italian boiler looks more profitable in terms of comfort. You can control the heating device remotely, it is possible to connect a separate chimney, as well as a warm floor.

Homeowners appreciated the affordable price, efficiency and convenience of using a gas boiler.

Advantages

• rich equipment;
• safe work;
• convenient management;
• economical fuel consumption;

Flaws

• modest performance.

Attention! This rating is subjective, is not an advertisement and does not serve as a purchase guide. Before buying, you need to consult with a specialist.

Heating private houses with gas is the most cost-effective in our country. Therefore, one of the main elements of the heating system is a gas boiler. The best option for heating living space with a total area of ​​​​80-900 square meters. m will be the installation of an underfloor heat source. On the market, the consumer is offered models of various domestic and foreign manufacturers. They differ not only in price, but also in important technical parameters.

• According to functionality, all gas boilers can be divided into single-circuit and double-circuit ones. The former are used exclusively for space heating. Models with two circuits are able not only to provide heat to the heating system, but also to heat water for the kitchen and bathroom. Despite a number of advantages of boilers with two circuits, experts do not recommend installing them in homes where bathrooms and kitchens are far from the boiler room.
• Gas boilers differ in the way they are controlled. Mechanical models are easier to maintain and repair, and electronic control allows you to achieve maximum comfort with complete non-interference in the work of residents of the house.
• Structurally, condensing and convection boilers are distinguished. In convection models, the coolant is heated solely due to the heat released during gas combustion. With this classical scheme for obtaining thermal energy, large losses occur. Much higher coefficient of performance (COP) have modern condensing boilers. In them, in addition to energy from the combustion of gas, heat is generated from water vapor, which are released during the combustion process. Water vapor is condensed in an additional heat exchanger, which ultimately allows saving up to 20% of hydrocarbon feedstock.

We offer you a selection of the best floor-mounted gas boilers, which is compiled on the basis of technical characteristics, cost, consumer reviews and expert opinions.

The best gas boilers for heating an area up to 100-150 sq. m.

Ideally, the power indicator of the unit should be determined on the basis of thermal imaging diagnostics, but in practice it is calculated from the average value, based on the calculation of 1–1.5 kW for each square meter. It is not worth choosing a gas boiler with overestimated parameters - a low load level leads to a decrease in efficiency and increased wear of mechanical parts. This category includes equipment suitable for operation in small, up to 100-150 sq. m., residential and non-residential buildings.

3 ATON Atmo 10EBM

The best choice for residents of the villages. Most compact dimensions
Country Ukraine
Average price: 17,600 rubles.
Rating (2019): 4.2

In the CIS countries, gas is supplied at a lower pressure than in Europe, moreover, due to the high degree of wear on the mains, accidents often occur. With a critical pressure drop, foreign equipment, designed for an indicator of 20 mbar, starts to work at a third of its capabilities or stops altogether. That is why residents of small settlements, where this problem is most relevant, prefer to buy inexpensive boilers adapted to local gas supply conditions. These include ATON Atmo 10EBM, ready to heat a house with the declared power even at 13 mbar.

More importantly, the device does not require connection to the mains and operates under conditions of natural circulation of the coolant in the circuit due to the difference in the density of cold and hot water. Model 10EBM is double-circuit and provides instantaneous heating of water up to 45 °, which makes it suitable for sanitary purposes. The unit belongs to the economy class, so from the elements of safety and comfort it provides only a non-volatile gas sensor, a draft sensor and a built-in thermometer. It is also distinguished by small dimensions (760x380x385 mm), efficiency (fuel consumption is 1.2 m 3 / hour) and attractive appearance.

2 Lemax Premium-10

Minimum fuel consumption. Italian components
Country Russia
Average price: 16,500 rubles.
Rating (2019): 4.5

The Taganrog company Lemax has been engaged in floor gas boilers for over 20 years, and since March 2018 it has launched another plant for the production of heating radiators. Her products attracted consumer attention affordable price and cost savings. Thus, a single-circuit unit from the Premium series with a heat output of 10 kW consumes on average 0.6 m 3 /h of fuel, which is approximately 30–50% better than its counterparts. Nevertheless, reviews of the first products were very restrained, many complained about poor-quality automation and gas burner units (GGU).

In the design of gas boilers "Lemax" of a modern sample, components are used European production- GGU from the famous Italian concern SIT and Polidoro microtorch burner. The same equipment is installed by popular foreign manufacturers, for example, Ariston. After the reconstruction, the opinion of buyers immediately improved, because for little money they were offered a non-volatile and economical device with auto-ignition, protection against overheating, blowing and soot formation, as well as with a 3-year warranty and a 14-year service life.

1 Kiturami STSG 13 GAS

High level of security. The most convenient to use
Country: South Korea
Average price: 41,000 rubles.
Rating (2019): 5.0

All gas boilers of the STSG line are considered the best in terms of reliability and safety, and the 13th, the youngest model, is no exception. The maximum area on which it can provide efficient heating, according to the documents, is 150 square meters. m., however, experts recommend leaving a margin of safety of 10-20%. The stainless steel body, welded using the special Kiturami technology, is designed for long-term (at least 10 years) operation in a humid oceanic climate. The device is two-circuit, equipped separate heat exchangers and is able to heat water in the DHW circuit up to 80 °, and the coolant - up to 85.

The unit is controlled automatically, the kit includes a remote thermostat that can be installed both nearby and in any room, for example, in a nursery. Accordingly, the boiler can be configured in one of two modes with reading the temperature of either the coolant or the air in the room. Among other functions that allow you to set the optimal operating mode for a day or a week without human intervention - “Delayed start”, “Freeze protection”, “Intervals”, etc. Safe operation is ensured by the advanced self-diagnosis function, and the closed combustion chamber and forced draft allow install a gas boiler indoors without expensive vertical chimney equipment.

The best gas boilers for heating an area up to 200-300 sq. m.

With an increase in the heated space, the problem of saving gas fuel becomes more acute. To ensure low heating costs, when choosing a boiler, you need to pay attention not only to power, but also to its efficiency. For some models from this rating (they work on the condensation principle), it exceeds 100%. Such data were obtained according to domestic calculation standards, and according to the European methodology, their real efficiency is approximately 95%. Accordingly, in order to get an idea of ​​the real efficiency of simple floor-standing gas boilers, the calculated efficiency should be reduced by 12–15%.

5 Teplodar Kupper OK 20

Ability to work on several types of fuel. Built-in heater
Country Russia
Average price: 23,400 rubles.
Rating (2019): 4.2

Many Russian settlements are waiting for the gas pipeline to be connected, and the only heating alternative available to its residents for some time is the installation of a heating system based on a solid fuel boiler. The Teplodar company has developed a universal design - the Kupper OK 20 model, capable of working both on wood, pellets and coal, and on natural gas. It is possible to transfer the unit from one type of fuel to another using the optional Teplodar burners. Thus, the same boiler can be used as the main source of heat on solid fuel, or as a backup - in areas with unreliable gas supply.

The basic kit includes a block of 3 heating elements with a power of 2 kW. It is impossible to heat the house with them on an ongoing basis; their task is to maintain the coolant in the event of a complete burnout of the fuel or in an emergency. Another feature of the device is the possibility of retrofitting an external control and a capacitive hydraulic separator. These elements perfectly balance the heating system, improve controllability to the level of mono-fuel boilers and extend the service life, but at the same time increase the cost of boiler equipment by more than 2 times.

4 Protherm Bear 40 KLOM

The most popular gas boiler
Country: Slovakia
Average price: 60 350 rubles.
Rating (2019): 4.5

The most popular floor gas boiler today is the representative of Slovakia Protherm Medved 40 KLOM. This is a single-loop model of the convection type. Its thermal power reaches 35 kW with an efficiency of 90%. One of the reasons for the high popularity was the possibility of using liquefied gas. The device is equipped with such modern options as protection against freezing and overheating, self-diagnosis, constant control over the combustion process, flame modulation.

Consumers flatter about the reliability, ease of operation, compactness and durability of the device. With all these qualities of a "smart boiler", it remains the most affordable for domestic consumers.

3 Baxi SLIM 2.300i

The best gas boiler with built-in boiler
Country: Italy
Average price: 107,500 rubles.
Rating (2019): 4.7

The Italian gas boiler Baxi SLIM 2.300 i has a built-in boiler with a capacity of 50 liters. Thanks to this design, there will always be a sufficient supply of hot water in the house. The security system includes a closed combustion chamber, protection against overheating and freezing, from blocking the pump, there is a draft sensor. The boiler can also be operated from liquefied gas. Additionally, it can be equipped with a timer and remote control. The double-circuit convection boiler is adapted to Russian conditions.

Consumers note the versatility of the boiler, its efficiency, ease of installation, the ability to work on liquefied gas. The main disadvantage is the high cost.

2 De Dietrich DTG X 23 N

Optimal economic performance. Cast iron heat exchanger
Country: France
Average price: 76,000 rubles.
Rating (2019): 4.8

The oldest brand in Europe, De Ditrisch, is 334 years old. During this time, it developed into an industrial empire for the production of automobile, railway and heating equipment. Gas boilers of this brand are invariably associated by consumers with reliability, unpretentiousness in operation, as well as minimal energy consumption: for heating a house of 200 sq. m model DTG X 23 N will need only 2.7 m 3 / hour of natural gas and about 2.0 - liquefied. Its other advantages include simplicity of design, low noise level during operation and simple maintenance.

The heat exchanger is made of high-quality eutectic cast iron (the company is known as a global metallurgical manufacturer), has an optimal configuration of heat transfer fins, due to which it is distinguished by high efficiency and corrosion resistance. Due to the plasticity of the walls of the heat exchanger, there is no need to control the temperature in the return circuit, and the boiler can be used for heating with underfloor heating. For safety reasons, a draft sensor and an overheating protection system are provided, and from the comfort elements there is an auto-ignition and an on indicator.

1 Vaillant ecoVIT VKK INT 366

Best efficiency
Country: Germany
Average price: 144,500 rubles.
Rating (2019): 4.9

The gas boiler from Germany Vaillant ecoVIT VKK INT 366 has the highest efficiency, which is 109%! At the same time, the device produces 34 kW of energy, which allows you to heat a house up to 340 square meters. The German specialists achieved the maximum result from gas combustion through the use of a modulating burner, flame control, conservation of latent heat of condensation, a multi-sensor control system, an information and analytical center, electronic ignition, etc.

Consumers highly appreciated such qualities of this single-circuit boiler as functionality, reliability, stylish appearance. It is worth noting that electronics are very sensitive to voltage drops in the mains. Therefore, it is necessary to additionally install a voltage stabilizer in the house.

The best high power gas boilers

AT apartment buildings, hotels and large (from 400 to 600 sq.m.) cottages, when there is a need to heat not only the room space, but also the pool, gym, winter Garden and other heat-intensive objects, it is most rational to install a heating system based on several single-circuit or double-circuit gas boilers with a capacity of at least 50 – 60 kW. When choosing, special attention should be paid to the range of automatic settings, the capabilities of control systems and the timely adjustment of the operating mode.

4 Leberg Eco Line FBS 60G

original heat exchanger. Excellent efficiency and safety performance
Country: Norway (produced in Russia)
Average price: 46,900 rubles.
Rating (2019): 4.3

The heat exchanger of the gas boiler of the Eco Line series from the Norwegian company Leberg has an original patented design. It is made of cold rolled steel 3.5 mm thick. Above the combustion chamber, surrounded by a water jacket, tubes with a diameter of 40 mm are located in a checkerboard pattern at an angle to circulate the coolant. To improve energy efficiency, the heat exchanger is enclosed in 2 thermal insulation layers of mineral wool and heat-reflecting foil. Thus, an efficiency of 90% was ensured and high level operational safety.

The single-circuit device is the simplest and most inexpensive of the entire range of high-power household units, while it is equipped with components proven by many years of practice: Polidoro or Bray burners, Sit automation, built-in Imit thermometer. Adjustment and maintenance of the set parameters is provided by a built-in thermostat controlled by a rotary knob. The design is non-volatile and is in demand in regions with problematic power supply. The consumption of main gas is relatively small (6 m 3 / hour), if necessary, you can transfer the gas boiler to work with liquefied fuel.

3 Navien GST-60KN

The best smoke extraction system. Built-in frost and surge protection
Country: South Korea
Average price: 92,000 rubles.
Rating (2019): 4.8

Floor-standing boilers of this brand are double-circuit and are able to provide a sufficient amount (from 20 to 34 l / min., Depending on the temperature) of hot water, including in the absence of a need for heating. The unit is fully adapted to Russian operating conditions:

• maintains stable operation at an inlet pressure of 4 mbar gas and 0.3 bar water;
• protected from power surges within ± 30% by a built-in chip;
• prevents freezing of the system by automatically turning on the burner and starting the circulation pump;
• equipped with a fan and allows smoke to be removed both into the chimney and through the wall.

You can set a comfortable heating mode using the included remote control with built-in temperature sensor and LCD screen. This is especially convenient when the boiler room is located in the basement of the house. The correct operation is monitored by the self-diagnostic system, which, in the event of critical sensor readings, blocks the operation of the boiler and displays an error code on the display. Wide functionality, high-quality components, excellent specifications, chic design and international certification - it is no coincidence that Navien equipment is considered one of the best.

2 Buderus Logano G234-60

Condensing principle of operation. Service life over 20 years
Country: Germany (produced in South Korea)
Average price: 144,000 rubles.
Rating (2019): 4.8

The main qualities of the floor gas boiler Buderus Logano G234-60 are stability and efficiency. They receive additional energy in the process of forced condensation of water vapor generated during combustion, and reduce energy consumption by up to 30%. Significant savings are also provided by fully automatic operation with electric ignition, which does not require additional gas consumption, 80 mm thick thermal insulation, which reduces heat losses to a minimum, and continuously adjustable boiler water temperature.

To meet all needs, optional expansion of the configuration with Logamatic automatic control systems and Logalux water heaters is possible. Additional noise suppression measures are not required. No need to worry about the emission of harmful substances either - the device has been awarded the Blue Angel eco-label by the German Federal Ministry for the Environment. To summarize, it is difficult to find a floor boiler that is more perfect and functional than Buderus.

1 ACV HeatMaster 70TC

The most multifunctional
Country: Belgium
Average price: 740,000 rubles.
Rating (2019): 4.9

The Belgian boiler ACV HeatMaster 70 TC, having the maximum configuration, has the highest cost. This double-circuit condensing unit with a power of 68 kW has the highest efficiency (109%). Due to the maximum absorption of heat in heating and hot water modes, the model is recognized by experts as the best in the world. When creating a gas boiler, the manufacturer has introduced a number of innovative approaches. This includes tank-in-tank technology, modulating pre-mix burner, and weather-compensated automatic system security.

Those owners of private houses who could afford the installation of such a boiler note the incredible efficiency of work, the absence of noise during combustion, high performance and complete safety.

Most buyers are trying to purchase an economical floor-standing gas boiler for their home, since gas is not cheap today. But, in addition to fuel consumption, there are many criteria by which the unit is considered economical. This is the service life, and the operation of the weather-dependent system, and the efficiency of the unit.

The efficiency of a gas unit directly depends on its service life. Boilers with cast-iron heat exchangers are able to work the longest - their service life is 30-40 years. However, they can "live" for so long only with careful handling. Cast iron is brittle and must be handled with extreme care. It is also necessary to avoid getting cool water on the surface of the hot heat exchanger, as the temperature difference will lead to cracks.

Floor-standing units with steel contours are not as capricious as cast-iron ones, but they are much more susceptible to corrosion. Because of this, steel elements fail faster.

Also, the operational period depends on the availability of spare parts for sale and the quality of the heating equipment. Therefore, when buying a unit of a certain brand, you should ask if it is easy to find accessories for it. As for the manufacturer, German and Slovak units work the longest. Domestic analogues fail faster, but they are better adapted to difficult Russian operating conditions and will cost less.

Note! Many manufacturers recommend installing a voltage stabilizer for their gas boiler. This is a condition for continued warranty service.

Some owners of floor gas boilers try to save on maintenance and do not call a specialist for scheduled repairs. However, during operation, the focus of the burner may shift, soot may appear and other minor malfunctions may occur. If they are not eliminated in time, then fuel consumption will increase, and the performance of the unit will decrease. Therefore, it is better not to save on service.

How does automation make a gas boiler more economical?

The efficiency of a gas unit is also affected by the ability to reduce and increase productivity during operation. Modern weather-dependent systems are able to reduce the intensity of combustion depending on the temperature outside or in the room. This significantly reduces gas consumption and, accordingly, the cost of it.

Some modern automation systems can be set to work for a day or a week. You can set the operation of the gas unit so that at night the temperature in the room is lower.

There are floor gas boilers with these types of burners:

• single-stage - has one power level;
• two-stage - two power levels;
• modulating - several power levels.

The last type of burner is considered the most economical, as it has the ability to smoothly switch to different power levels.

Efficiency of outdoor gas units

The main indicator when choosing an economical gas boiler for organizing home heating is the coefficient of performance - efficiency. Its value for outdoor gas units lies in the range of 84-99%. Low-cost devices equipped with a one- or two-stage burner have a low rate. Boilers work more efficiently, in which the power can change smoothly, depending on weather conditions.

The heat that is obtained as a result of gas combustion heats the heat exchanger with the heat carrier. After that, the remaining heat passes into the chimney and irrevocably goes into the atmosphere. The amount of heat lost is shown by the flue gas temperature. If the smoke is heated to 200°C or more at the outlet of the nozzle, then this unit is not considered economical. The best option is flue gas temperature in the range of 100-150 °C.

Condensing gas boilers

The condensing unit is considered the most economical floor gas boiler for the home. This is possible thanks to a special technology for extracting heat from the resulting moisture. To do this, a floor-standing gas boiler is equipped with a cylindrical burner, which is located inside a stainless steel heat exchanger. It is made in the form of a coil with tightly packed coils. Water vapor condenses on the heat exchanger, the heat from which also heats the coolant. Due to this, thermal energy is maximally spent on heating the heat exchanger. The efficiency of such units is 97-99%.

Note! If, due to problems with electricity, you decide to purchase a non-volatile gas boiler, then keep in mind that it will not be economical. For such boilers, the efficiency rarely exceeds 91%.

The cost of floor gas boilers

Another important selection criterion is the price of the device. Condensing models are much more expensive than convection ones. It is better to purchase a boiler that can work on both natural and liquefied fuels.

Basically, devices of an affordable price category include models with low efficiency. More efficient units, especially foreign-made ones, are more expensive.

If you cannot afford condensing-type heating devices, you can purchase a cheap domestic boiler with low fuel consumption.