TOP 10 best wall-mounted gas boilers in the 2021 ranking

BaltGaz NEVA 11 Turbo

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2

Ariston CARES X 24 FF NG

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3

Lemax PRIME-V20

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The choice of a gas boiler is the responsibility of the consumer. And if specialists help you correctly calculate the power, then you will have to choose a suitable model with a certain set of characteristics and functions yourself. Our rating of the best wall-mounted boilers will help you make the right purchase, knowing the selection criteria, advantages and disadvantages of this or that gas equipment.

Lifehack

Freezing of a coaxial pipe can be prevented in several ways:

• insulate the outer pipe with mineral wool and a protective casing made of plastic pipe;
• cut the outer pipe or increase the inner pipe by 15-20 cm so as not to create a dew point;
• initially take the maximum length of the coaxial chimney recommended by the manufacturer;
• increase the slope to the ground by 2-3 cm.

According to heat exchanger material

The heat exchanger is the most worn-out element of the boiler, so the trouble-free operation of all equipment depends on its material. They are produced:

• stainless steel;
• copper;
• cast iron (extremely rare for wall mounting due to the weight of the metal).

Table of consumer qualities of heat exchanger materials:

By manufacturer

Leaders of the world gas equipment:

• German manufacturers (brands: BUDERUS, BOSCH, VAILLANT, VIESSMANN, WOLF);
• Italian (FERROLI, BAXI, ARISTON);
• Korean (NAVIEN);
• Slovak (PROTHERM).

And, of course, domestic manufacturers, whose products are distinguished by their unpretentiousness and survivability in the difficult conditions of the Russian winter and the unstable operation of the gas system and electricity supply:

• "ZhMZ";
• "Lemax";
• "NEVA".

By set of additional functions

To organize hot water supply, single-circuit boilers must be supplemented with an indirect heating boiler. Double-circuit systems also do not always cope well with the task of providing DHW, because flow heating has its disadvantages: when the tap is opened at the second point, barely warm or cold water flows from the first. Therefore, for double-circuit systems, a boiler is also a solution.

In regions with harsh climatic conditions, the boiler must have frost protection. In expensive models it is built-in.

For the “smart home” system and the owners’ desire for maximum comfort, the equipment is equipped with numerous sensors and relay control processes (traction sensor, outside and room temperature, media temperature, auto shutdown, protective relays, etc.).

Advantages and disadvantages of gas boilers

A gas boiler with a gas main and communications connected to them is the most economical option for heating and hot water. In addition to the opportunity to save on heating and hot water, gas-fired boilers have the following advantages:

• high percentage of efficiency (up to 100 - 110% for condensing models);
• compact, wall-mounted;
• require little attention: it is possible to completely give control and control to automation;
• comfort of domestic use: the house is always clean;
• Available non-volatile models allow you not to be left without heating and hot water during a power outage;
• a huge selection of modifications will help you choose the optimal boiler for a specific room and task;
• relative availability in terms of price and service in case of failure.

There are also disadvantages, but they are not critical:

• bureaucratic burden during connection and service;
• large rooms require floor-standing boilers and a separate boiler room;
• a boiler with an open firebox must be equipped with a convection chimney with natural draft, which takes oxygen from the room, so this equipment is removed to the boiler room;
• turbocharged models are noisy;
• Volatile boilers must be equipped with extremely expensive UPS.

Manufacturers produce a huge number of modifications of wall-mounted boilers so that the consumer can choose something that is most optimal and with a minimum number of disadvantages for his situation. It is better to base the choice on the specific tasks of the boiler and the parameters of the heating room.

In order not to be left without heating in winter, it is recommended to install a cascade of boilers: one imported with electronic control, and the second domestic, non-volatile and completely simple.

No. 2 - Proterm Panther 12 KTZ

In 2nd place in the TOP of the best models is the wall-mounted boiler Protherm Panther 12 KTZ. This dual-circuit device has a power of 24 kW with adjustment from 10 kW. The rate of supply of hot water to the water supply system reaches 11.6 l/min. An adjustable fan is provided to remove smoke. The boiler body is made of stainless steel. Advantages of the boiler:

• increased service life;
• complete guarantee of safety;
• high efficiency (up to 94 percent);
• attractive design;
• simple and convenient control system;
• silent operation;
• does not require frequent prophylaxis.

No significant deficiencies were found. A reliable control system and trouble-free operation make the device one of the leaders.

Criterias of choice

• heated area (we are looking for models for rooms up to 100 m², up to 200 m², up to 300 m² and over 350 m²);
• the number of circuits and the required volume of hot water supply (single-circuit with a built-in tank for a small apartment and 1-2 people, single-circuit with an indirect heating tank for a family of 3-4 people, double-circuit with one water point, with two, etc.);
• energy-dependent, but economical, automated and ultra-modern, or energy-independent, but completely simple and unpretentious with mechanical control and a minimum of sensors (in areas with frequent and long power outages, owners risk being left without heating in the winter by choosing an energy-dependent boiler);
• if there is a separate boiler room, you can take it with an open chamber, or you can take it with a closed chamber for a coaxial chimney; in a separate room it is easier to organize a combination of a wall-mounted single-circuit boiler + a heating tank for hot water supply;
• if there are problems with pressure in the gas main, or a drop in voltage in the electrical network, then look for boilers whose “brains” can withstand this; not all expensive imported models can ensure trouble-free operation in our extreme conditions;
• pay attention to additional functions not only for the boiler, for example, it is very convenient to have a chimney with anti-icing protection, otherwise you will have to manually get rid of the terrible icicles on the coaxial pipe or on the roof near the chimney, which will stop the boiler from working;
• remember that the boiler will be only part of the heating system, not only it is important, but also the optimally coordinated and correct operation of all components;
• consider maximum protection against gas leaks, do not skimp on safety, relying only on the brand or the reliability of modern electronics.

One of the signs of a malfunctioning gas boiler is an increase in condensation on the windows.

No. 10 – Oasis VM-16

Opens the rating of the best Oasis BM-16 devices. It has a power of 16 kW and provides heating for a house with an area of ​​120-150 sq.m. Heat exchanger – copper, closed chamber. There is a fan that provides forced removal of combustion products. The kit includes a pump that allows you to raise water to the 2nd floor. The necessary information is displayed on the display. The water temperature in the heating system is regulated in the range of 40-85 degrees, for water supply - 30-65 degrees. A piezoelectric element is used for ignition. Highlighted advantages:

• fairly high efficiency (about 92%);
• several levels of security system;
• economical fuel consumption;
• presence of an expansion tank with a volume of 6 liters;
• electronic control, timer.

Noted disadvantages:

• increased dimensions;
• presence of comments on the reliability of sensors.

Overall, this model deserves high marks. Its service life exceeds 13 years. A closed combustion chamber and a high-quality chimney ensure reliable removal of combustion products.

The best wall-mounted gas boilers

BaltGaz NEVA 11 Turbo

A budget model of a double-circuit boiler from a well-known Russian manufacturer, which has updated its product lines. The filling is European, economical, because... Efficiency is about 90 - 92%. Closed chamber with forced removal of combustion products. Ideal for small rooms up to 100 m², because... power is only 11 kW. Inside there is a bithermic heat exchanger, the walls are sound insulated, and therefore low noise. Weighs a little, about 28 kg, compact. Access for maintenance is conveniently organized - the front panel and walls are simply removed. Protection against condensation. It is possible to attach additional options: outside temperature sensor, room thermostat, etc.

Cons: the design is not the most elegant, low-power for a double-circuit with DHW supply.

Ariston CARES X 24 FF NG

This budget equipment is a replacement for the legendary previous generation model EGIS. The model is suitable for rooms from 150 to 200 m². A 24 kW double-circuit with 2 independent heat exchangers made of different materials: the primary one is made of aluminum, which is very, very controversial, but the DHW heat exchanger is made of copper, which, of course, is good news. Efficiency is about 93%. There are some convenient automations for comfort. The saving mode has been thought out: summer, summer/winter. This allows you not to turn on the heating in the summer, but to turn on only the hot water supply circuit. There is a condensate collector.

Cons: aluminum heat exchanger is short-lived, small flow tank.

Lemax PRIME-V20

Double-circuit 20 kW boiler with separate heat exchangers for each circuit from a proven Russian brand. A durable filling has been thought out: the hydraulics are brass, the primary heat exchanger is copper, the secondary one is made of stainless steel. A high efficiency rate of up to 92% is achieved due to an enlarged closed firebox. You can save money by using the modulation mode with adjustment from 9 to 19 kW, and in the summer you can even switch to the “Summer” mode to receive only hot water without heating. Weight and dimensions are small. Not a bad design. The assembly is high quality. For rooms up to 150 - 180 m².

Cons: expensive and noisy compared to imported analogues.

BAXI ECO-4s 24

Powerful double-circuit wall unit 24 kW. Efficiency is almost 93%. Economical thanks to power adjustment and “Summer” mode. Electronic control, high-quality assembly. The heat exchangers are plate-type, which is a definite plus for durability. One is made of copper, the second is made of stainless steel. The Italian brand has created a worthy product. Suitable for rooms up to 200 m². Provides accurate set temperatures for DHW and heating. Has many levels of protection. It is possible to connect underfloor heating and an external remote control.

Cons: the pressure gauge for monitoring water pressure is for some reason located on the bottom of the housing, on its lower plane, the tank is small, there is not enough hot water.

Vaillant turboFIT VUW 242/5-2

German heavyweight 36 kg with anti-corrosion coating and 2 circuits. 2 separate heat exchangers: copper and stainless steel. There is a “Summer” mode, power control depending on the outside temperature. Efficiency is about 90%. Closed firebox, turbocharging. Its 24 kW is enough for a house up to 200 m². Despite the fact that this is a budget line, it is also distinguished by stable German quality and reliability.

Cons: very expensive spare parts, electronic “brains” can produce irrelevant errors.

Bosch Gaz 6000 W WBN 6000-12 C

Quite a budget model from a German brand. There are 2 circuits with a copper and stainless steel heat exchanger. A power of 12 kW is enough for a house or apartment up to 100 m². Electronic control, economical. High efficiency up to 92%. Closed combustion chamber. It is possible to install an external temperature sensor.

Cons: the whole series has a problem with the “brains”, it often displays an AE error, there is no protection against condensation, it may turn off because of this in severe frost, the assembly may turn out to be Polish or Russian.

Buderus Logamax U072-24K

German by origin, but Russian by assembly. A 24 kW wall-mounted double-circuit heater will heat a house up to 200 m². Separate heat exchangers. Copper plate heat exchanger with easy access. Electronic “brains” help you manage comfortably and save money, but they also cause problems. Average weight - 34 kg. Not the noisiest, rather quiet. Safe. For extreme conditions in Russia: low pressure, power surges, frosts.

Cons: frequent error 6A due to a defective board, completely plastic unreliable cold water supply tap, expensive components.

Navien DELUXE COAXIAL 24K

A powerful 24 kW double-circuit unit is suitable for rooms up to 200 m². Controlled by remote control. Lightweight and compact. Korean assembly, budget model from a trusted brand from South Korea. Efficiency is about 90%. Electronic control, power adjustment, saves gas. Bithermal heat exchanger. A very popular boiler among the people; for most it works without serious breakdowns.

Cons: very noisy, can hum, click, make popping noises when igniting, often turns on/off, not all owners are lucky with reliability, heats water very poorly, and is not suitable for hot water supply.

Protherm Jaguar 24 JTV

Another inexpensive double-circuit unit from a brand from Slovakia, but assembled in Turkey. Its 24 kW is suitable for houses up to 200 m². Closed firebox. Separate heat exchangers: the primary one is made of copper and the secondary one is made of stainless steel. Mechanical control. Doesn't make much noise. There is a smooth power adjustment. The efficiency is high - almost 93%. Good degree of protection. Many services, spare parts available.

Cons: crooked assembly, 1 heating circuit turns off when running on hot water, which is very inconvenient in severe frosts, inconvenient control of the wheels.

Viessmann Vitopend 100-W A1JB010

24 kW reliable 2-loop circuit from one of the best German manufacturers for homes up to 200 m². Design with 2 separate heat exchangers: primary copper, and secondary plate heat exchangers made of stainless steel. The water tank is 9 liters, quite a lot. Closed combustion chamber. Lightweight and compact. Power modulation from 30 to 100%. Efficiency up to 93%. The model is transformed into a single-circuit device by simple manipulations with the second heat exchanger. The boiler has many redundant degrees of protection, the automation is reliably designed, and there are no failures. But “brains” in general are not capricious, because The boiler is adapted to Russian conditions, but there are failures. It is designed for ease of maintenance and is easy to get into everywhere. According to the owners, a German-assembled boiler is indeed one of the most reliable and comfortable in everyday life, but there are more negative reviews about the Turkish assembly.

Cons: noisy, may produce irrelevant errors, inconvenient for providing hot water supply for a large family.

Manufacturers of units

Today there is a fairly large list of manufacturers producing double-circuit gas boilers. Making a choice is quite difficult, since often in terms of characteristics there can be completely identical models, but at the same time very different in price. This is due to the quality of the components used and the assembly technology, which affects not only the efficiency of the entire system, but also the service life of the product.

It is also worth noting that when buying a product manufactured by a well-known company, you can be sure that the actual characteristics correspond to the declared ones. At the same time, such companies provide full and fast warranty and post-warranty service.

Conventionally, it is customary to divide the entire gas boiler market into three groups: Italian, German and others. The most well-established companies include the following heaters:

1. Vaillant (Vailant). A German company that has developed its own burner design, which has improved the reliability and performance of its products. Their boilers have excellent protection and are most often made of cast iron.
2. Protherm. It has been on the boiler sales market for more than twenty years. They produce inexpensive products of excellent quality with interesting designs.
3. Ferroli (Ferroli). This company from Italy constantly monitors new technologies, which it then implements into its products. The models they produce are reliable and easy to use, and their affordable price makes them the most popular manufacturers in the world.
4. Bosch (Bosch). This corporation has an entire division specifically dealing with heat and power issues. Although their products are not the cheapest, in terms of reliability they are the best company in Germany.
5. Rinnai (Rinnai). The models of the Japanese representative stand out for their functionality and high efficiency indicators. The engineers of this company developed a unique fan burner that regulates gas flow depending on the pressure in the system.
6. Buderus (Buderus). Combines well-known German quality with an affordable price. Economical fuel consumption, small size, unpretentiousness to the quality of the coolant attract buyers from all over the world.
7. Olympia (Olympia). The South Korean company pays special attention to equipment protection. Its designers have developed a unique double overheating protection system.

This is important to know

• Only professionals can install a heating system. The safety and reliability of a gas-powered system is more important than imaginary savings.
• It is necessary to comply with the maintenance of the gas boiler and chimney in a timely manner; if the instructions are poor, then you can find maintenance tips and videos demonstrating maintenance on the Internet.
• It is important to choose not only the boiler that is optimal in terms of power, but also to properly arrange the chimney so that the entire system works efficiently and without failures; chimney problems reduce the efficiency of the heating system and the durability of the boiler.
• You cannot install a computer UPS on gas boilers.
• If the water is hard, be sure to equip the inlet into the house with a filter to soften the water, this will extend the life of the heat exchanger.
• The manufacturer's warranty is valid only if several requirements are met: first commissioning by service center specialists, provision of the boiler with a UPS, repairs only by licensed craftsmen.