The rating of double-circuit wall-mounted gas boilers will help you decide on a purchase

Quality wall-mounted double-circuit gas boilers are found among several manufacturers.

Based on the brand's reputation and technical characteristics, you can make a decision rating the most profitable models.

Wall-mounted gas boilers are easy to install and have optimal power.

What is special about double-circuit wall-mounted gas boilers?

Two tasks, which are made by double-circuit wall-mounted gas boilers: Providing premises with heating and hot water.

During operation of the unit, the gas burns and heats the heat exchanger, which transfers energy to the coolant, which then spreads through the radiators and taps.

Wall-mounted models of dual-circuit devices have a number of advantages:

• Optimal power.
• Minimum space for installation.
• Affordable price.

Unlike floor-mounted devices, wall-mounted ones can be installed in the heated area (for example, in the kitchen), and not in a separate room, like most floor-mounted ones. But wall-mounted double-circuit boilers also have consThese include:

• Power limitations.
• Limit on the type of installed elements.
• The need for preparation walls for installation.

The more powerful the boiler, the larger it is. And the wall-mounted version should not be too heavy.

This one of the reasons, for which cast iron heat exchangers are avoided in wall-mounted models. They are made from a different material.

To hold firmly several tens of kilograms, it is necessary to securely attach the device to the wall.

Parameters

The place gas units occupy in the list is influenced by their parameters, or rather, a whole range of characteristics. Device power: the best option 24 kW, is responsible for sufficient heating - about 82 °C, and also the presence of hot water in the tap - up to 60 °C.

Gas consumption: on average 2.8 cubic meters of natural gas or 2 kg of liquefied gas per hour, demonstrates the costs of heat supply. In addition to the heating function, the reliability of the gas boiler is of great importance. Electricity-dependent and autonomous devices must be equipped with a safety system.

Elements of a security system typically solve problems such as: gas control, automatic diagnostics, overheating protection, freeze protection, and pump lock.

These parameters affect the efficiency and reliability of the boiler, as they increase its productivity and reduce the risk of accidents, increase service life.

It is important to take them into account because they help maintain the functionality of equipment, eliminate threats to human health and save on fuel.

For example, by choosing boilers with adjustable power when purchasing, you can adjust the operating mode of the device. depending on the weather on the street and the presence of a person in the room, rather than operating the boiler at full capacity around the clock, wasting excess gas in vain.

Rating of the most reliable models

When choosing an option for a private home, it is worth considering Efficiency of the unit. According to it, double-circuit gas wall-mounted boilers are located in the following order.

Immergas Eolo STAR 24 3

The Italian-made device provides power, equal to 24 kW. This is enough to on an area of ​​200 sq. m. the heating worked effectively and there was always hot water in the taps.

The unit has a closed combustion chamber, which in turn requires the installation of a coaxial chimney. This is the most efficient and safe option for supplying oxygen and removing combustion products.

If we add that the device uses a copper heat exchanger, which is considered the best option for heat transfer, then it is not surprising high efficiency - 93.4%. Fuel consumption reaches 2.7 cubic meters per hour, and the performance of the DHW circuit is 13.5 l per minute at 25 °C. Allows the use of liquefied gas.

Bosch Gas 6000 W WBN

A convection boiler from Germany, but assembled in Russia, can provide power up toabout 37.4 kW. It is specially adapted for Russian conditions and takes into account the local climate. The heating area with this unit can reach 300 sq. m.

Photo 1. Wall-mounted gas boiler model Gaz 6000 W WBN, double-circuit, with LCD display, manufacturer - "Bosch".

The device has a closed combustion chamber, a coaxial chimney and a copper heat exchanger. The efficiency is 93.2%. Fuel is being consumed 2.8 cubic meters on natural gas and 2 kg per hour on liquefied gas. At temperature 30 °C The performance of the device in the DHW circuit is 11.4 l per minute.

Baxi Nuvola-3 Comfort 240 Fi

The unit is made in Italy and is considered a premium class device. Its upper power limit is 24.40 kW. The dimensions of the room in which the boiler can operate effectively may exceed 200 sq. m.

The device performs its functions using a closed combustion chamber. The supply of oxygen and the removal of combustion products are provided by a coaxial chimney.

Efficiency of a gas boiler one of the highest — 92.9%.

The reason for such high efficiency can be called a well-thought-out design, which uses copper and steel heat exchangers, and allows the use of natural (2.78 cubic meters per hour) and liquefied (2.04 kg per hour) gas.

Performance characteristics of the hot water supply circuit - 14 liters per minute at a temperature of 25 °C. The boiler can operate in "Summer" mode.

Buderax Logamax U042

German wall-mounted gas unit assembled in Turkey delivers power 24 kW, which allows you to heat the area in 240 sq. m. The device uses a closed combustion chamber, a coaxial chimney, and a copper heat exchanger.

The efficiency corresponds 92%. Fuel consumption reaches 2.72 cubic meters of natural gas and 1.93 kg of liquefied gas per hour. In the DHW circuit the flow rate is 14 l per minute at 25 °C.

Buderax Logamax U072 12 K

This model is designed for power 12 kW and is capable of providing heat to the area in 120 sq. m.

The closed combustion chamber of the gas boiler and the coaxial chimney guarantee safe operation of the device for the surrounding area.

Its design provides for the use of copper and steel heat exchangers.

Efficiency is gaining 92%. Performance of the DHW circuit at temperature 25 °C makes up 10.3 l. The device allows the use of the economical "Summer" mode. The operating status of the unit is displayed on the LCD display.

Buderax Logamax U072 24K

Such a boiler consumes more power, but is also designed to heat a room of an area 240 sq. m. It also uses a closed combustion chamber, coaxial flue, copper and steel heat exchangers.

The efficiency is 92%. The capacity of the DHW circuit is equal to 13.6 l at 25 °C and there is a "Summer" mode. As in the previous model, the system allows settings for the use of liquefied gas.

Photo 2. Wall-mounted gas boiler model Logamax UO72, power 18000 W, manufacturer - "Buderax", Germany.

Baxi Fourtech 24

The device is made in Italy. Its maximum power is 24 kW, which is suitable for heating the area more than 200 sq. m. This option differs from the previous ones in that it has an open combustion chamber, which requires the organization of a chimney, as well as ventilation to supply oxygen.

It is better to equip a separate boiler room for such a device. Its efficiency is 91.2%. Natural gas consumption reaches 2.78 cubic meters per hour, and liquefied - 2.04 kg per hourThe model uses copper and steel heat exchangers.

Photo 3. Wall-mounted gas boiler model Fourtech 24, double-circuit, open combustion chamber, manufacturer - "Baxi", Italy.

The capacity of the hot water circuit is 13.7 liters per hour at 25 °C.

Baxi Main 5 24 F

The Italian boiler is designed at 24 kWThis power allows heating more than 200 sq. m. territory. The combustion chamber of the device is closed, which suggests the use of a coaxial type of chimney.

The unit can operate on natural gas and allows the use of liquefied gas. Its efficiency is 90.6%.

Both heat exchangers in the device - copper. The performance of the circuit with DHW - 13.7 l at 25 °C. The boiler has electronic protection against scale formation.

Navien Deluxe 24K

Manufactured in South Korea. The unit can use both natural and liquefied gas as fuel.

The power limit of the device reaches 24 kW, which makes it possible to provide heating 240 sq. m. of premises. The boiler uses a closed combustion chamber, which provides a coaxial chimney.

Both heat exchangers in this model are made of stainless steel, which is highly wear-resistant. The performance of the DHW circuit is 13.8 l at 25 °C. The gas boiler system has an economical “Summer” mode.

Protherm Gepard 23 MOV

The Slovak unit operates on natural gas as well as liquefied gas. The useful power of the device is 23.30 kW, which allows for efficient heating of the area 230 sq. m. Efficiency — 90.3%.

The boiler uses both copper (primary) and steel (secondary) heat exchangers. The design provides for an open combustion chamber, which requires the organization of a chimney and ventilation in the room.

The capacity of the hot water supply circuit is 11 l at 25 °C. The model has an economical “Summer” mode.

Although this boiler is at the bottom of the rating, despite its small indicators, it has a combination of all the characteristics necessary for a modern device: quality, safety and ease of use.

Useful video

Watch the video to learn how to choose the right wall-mounted gas boiler.

How to choose the right boiler for heating a private house

The presented models take into account the requirements for gas units. Almost all devices have electronic control system, making it easier to track their work.

In addition, the well-thought-out design of the devices from the list guarantees high safety, which is very important for wall-mounted models, which are often installed inside the house.

Although the list offers the most efficient models to operate, the choice of the right device depends on specific characteristics: area, heat loss, operating options.

However, you can try to choose the most versatile and reliable type of gas boiler.

So, for the Russian climate of the middle zone with hot summers and cold winters Buderax Logamax U042 may be the best option.

Firstly, It is designed for a large area. Secondly, heat exchanger material (copper) — ensures good heat transfer, which means fuel savings and low wear of system elements. The combustion chamber and chimney are completely independent of the environment and the device can be installed, for example, in the kitchen. To this we can add relatively low fuel consumption and high performance of the circuit with DHW.