How to choose a gas wall-mounted double-circuit boiler - expert advice

Gas boilers for heating systems are now quite in demand. According to statistics, the vast majority of equipment of this type operates on gas. This type of fuel is considered the most efficient and cheap. The modern market offers various models of all kinds of complete sets. For this reason, a completely natural question arises as to how to choose a gas wall-mounted dual-circuit boiler.

First of all, you should find out the most optimal fuel for your region. If you choose between single-circuit and dual-circuit units, you need to decide whether you need a constant availability of hot water or it will be from other sources.

As a rule, gas boilers are equipped with an atmospheric burner and can be wall-mounted and floor-standing. In the latter case, the equipment is mainly made of cast iron or steel. On the question of which one is better, it is impossible to answer unambiguously, since each has its own advantages and disadvantages.

Main characteristics

So, at last your house is connected to the gas supply system, and now there is a need to purchase specialized heating equipment that uses gas as a source of heat. But before visiting the store, you should familiarize yourself with the selection criteria and the main characteristics of this device.

Heating units operating on gas may differ:

• The name of the manufacturer.
• The price.
• The discharge of the energy source.
• The power of the equipment.
• Number of circuits (single- or double-circuit).
• The material used in the manufacture.
• Place of installation (floor or wall).
• The method of cleaning from gases obtained after use (natural or forced).

Before choosing a gas wall-mounted dual-circuit boiler, it is very important to calculate all the heat losses in the room and determine the required capacity of the equipment for the heating system.

Also, do not forget that the reliability and efficiency of the boiler unit depends not only on the material, but also on the operating conditions, as well as the quality of installation.

Equipment

The gas boiler is a two-circuit wall-mounted (price on average - from 9000 rubles) consists of the following main components:

• Burner.
• Circulation pump (one or two).
• Expansion tank.
• Thermometer.
• The manometer.
• Heat exchanger.
• Safety system.

Design Features

Gas dual-circuit wall-mounted boiler for the house, in comparison with other similar equipment, has some design features:

• The device of the heat exchanger.
• Dual or redundant automation system.
• Dependence of contours.
• The principle of the hot water circuit.

Also, the features of wall-mounted boilers include the absence of chimneys. To be more precise, their design, which consists in the withdrawal of the pipeline to the street through the wall. By means of the same design, venting and delivery of oxygen is carried out, which contributes to the combustion process.

Typical features of these devices can be called average power and a relatively compact size.

The vast majority of gas boilers of the wall type are equipped with the following elements:

• As in any heating equipment (with the exception of furnaces), there is a temperature control system on the heating circuit.
• Independent system for setting the required temperature regime for hot water supply.

It should be noted that in this case it is an independent regulation of temperatures on the contours, while their work depends on each other and on a certain model:

• There are options where temperature separation is required to ensure the necessary pressure and temperature conditions of the coolant.
• For some models, the start of the water supply requires the heating system to stop.

Benefits

Externally, the heating boiler gas double-walled wall looks like a neat little locker that perfectly fits into any interior. Inside it are all the necessary elements - the equipment must only be connected to a hot water supply and heating system. The main advantages of such boilers are:

• One unit is able to perform several functions simultaneously - heating the water and heating the premises.
• High degree of safety.
• A significant reduction in utility fees, since cold water is much cheaper.
• Compared with other options for independent heating systems, this type of equipment is relatively inexpensive.
• The use of automation systems makes it possible to simplify the setup and maintenance of the unit as much as possible.

The performance and size of these devices are significantly different from each other. Before choosing a gas wall-mounted dual-circuit boiler, many characteristics must be considered.

Criterias of choice

When choosing a gas boiler, you need to determine the following points:

• Degree of confidence in the manufacturer.
• Characteristics of chimneys.
• The need for automatic control.
• Level of comfort.
• Required equipment capacity.

After that, it remains only to compare with these characteristics the chosen model and make your choice.

Power

It is believed that 1 kW of heat is required to heat 10 m ^{2 of a} dwelling. Thus, for a house with an area of 240 m ^{2 you} will need a gas boiler with a two-circuit wall-mounted 24 kW. Data on power can be found in the technical data sheet for a particular model, and this information is very often indicated on the package.

It is worth paying attention to the fact that the amount of heat required to heat an apartment or a private house depends largely on the degree of its thermal insulation. Therefore, it is recommended to take care of this in advance.

Level of comfort

Due to the fact that the temperature of the outside air varies depending on the weather conditions, there is a need for monitoring the operation of the heating unit. Today you can choose the model with the following type of regulation:

• Single stage.
• Two-stage.
• Three-step.

In the first case, it is meant to configure the operation only in one particular mode. To control the temperature too high, the device must be turned off.

In models with two-stage power control, one of two modes can be selected: for warmer or cold outside temperatures. In comparison with the previous version, this one is more convenient in operation. In addition, the possibility of switching the burner operation mode increases the operating time of the device.

Models with three-stage control are also convenient and last longer. However, such devices are much more expensive, so most often consumers opt for the second option.

Automatic control unit

Most models from leading Western companies are equipped with an electronic control unit. This element displays the application of heating equipment to a new level. The presence of automation allows you to set the optimal mode of operation and promptly indicates the need for repair or maintenance.

Usually the control panel of a modern boiler unit of a wall type is equipped with a liquid crystal monitor that reflects signals of possible malfunctions and technical characteristics of the device operation.

How to choose a gas wall-mounted double-circuit boiler

• According to the expected power and appearance. Ergonomics of design, shape, color - everything is important, however, the required power still has the decisive importance.
• The maximum permissible volume of coolant in the heating system for a particular model (indicated in the passport).
• The maximum flow rate of the coolant for hot water supply (indicated in the passport).

Manufacturers

Buy boiler heating gas dual-walled - no problem. The main thing is not to make a mistake with his choice.

To date, the domestic market offers consumers equipment from Italy (Fondital, Beretta, Riello), Germany (Viessmann, Buderus, Bosch). Also very popular are the boilers "Proterm", "Ariston", "Vialant", "Electrolux", "Signal", "Bear", "Konord", etc.

How to find a good manufacturer?

High quality and excellent reputation of the equipment are far from the only points to be paid attention to when choosing a gas dual-wall gas boiler (the price of these devices is indicated below). After all, not every foreign model is adapted to work in Russian conditions. Often, imported equipment is very sensitive to the quality of the coolant. When the voltage jumps in the mains, electronics goes out of order.

Another important point is the availability of service. After all, during the frost, procrastination can become catastrophic for the entire heating system. It is unacceptable for the situation when parts for repair need to be bought in a neighboring area or country.

Gas wall boilers, double circuit (Korea)

Heating equipment manufactured in Korea is a functional device that is manufactured using modern technologies, as well as in accordance with world and European standards.

Against the backdrop of similar units, gas wall boilers, dual-circuit (Korea), such as Navien, stand out for their ease of use, reliability and high quality.

Relatively small body of the unit simultaneously combines standard components (burner and heat exchange unit), control device, temperature and pressure sensors, circulation pump, and much more.

The cost of such a boiler is from 30 000 rubles.

German equipment Vaillant

Boiler gas dual-wall "Vailant" - this is another great option from the German manufacturer, who won the great love of compatriots. Vaillant offers its customers a wide range of heating equipment of various capacities and capacities.

Two-circuit gas boiler "Vylant" is distinguished by its efficient and reliable work, affordable cost, and economical service.

The cost of the units of this manufacturer is from 48 000 rubles.

Boilers "Ariston"

Gas boilers from the Italian manufacturer Ariston are positioned on the market as convenient and efficient heaters. The set includes a heat exchanger, a control device, a burner, a circulation pump, an expansion tank, and a well-thought-out security system. At the same time, gas-fired two-circuit gas boilers "Ariston" are much cheaper in comparison with similar models.

These devices are used in the construction of new homes and the modernization of existing heating systems. All heating equipment "Ariston" is characterized by low noise level.

The price of such devices is from 25 000 rubles.

Protherm Equipment

The gas boiler wall-mounted double-circuit "Proterm", represented by the Czech manufacturer, is safe, economical and convenient in operation. This company specializes in the production of heating devices of various capacities, not only wall, but also floor-standing.

By purchasing a gas boiler wall double-circuit "Proterm", you can be sure that this equipment has been tested for compliance with European quality standards.

The cost of such an aggregate is from 27 000 rubles.

Boilers Bosch

Bosch is Europe's leading manufacturer of water heating and heating technology. The variety of models combines unchanged durability, reliability, quality and ease of operation.

Boilers gas wall double-circuit "Bosch" are designed taking into account the peculiarities of Russian operating conditions. Thanks to a wide range of products, it is easy to choose a heating unit that will fully meet the needs and financial possibilities.

The price of the boiler equipment from this company is from 20 000 rubles.

Russian equipment Neva

Neva two-circuit gas boilers are equipment from a Russian manufacturer that can be used for local and centralized heating systems, for heating residential and industrial buildings, as well as for hot water supply.

Due to its compactness, this unit will perfectly fit into any interior. Integrated security systems and modern management create additional convenience and security for users.

The cost of boilers is from 17 000 rubles.