The European gasification program has made blue fuel more accessible. Therefore, when choosing heating systems, the gas version becomes more preferable.
Gas heating wins in many ways: economy, price, ease of maintenance.
The heart of the system — the boiler — has wall and floor options, which makes its installation the most versatile.
Floor or wall?
When choosing an option for the location of a gas heater, the area of u200bu200bthe room is a priority aspect. Wall-mounted boilers are effective for private houses or apartments with an area of up to 250 m2.
The wall mounted option is very beneficial. It does not require a separate room, but only a minimum space on the wall.
Installation of the wall-mounted device is very simple, which significantly reduces the cost of installation work. In addition, the attractive design and uncomplicated operation make it particularly advantageous.
Types of gas boilers
In addition to the location method, boilers are divided into other types.
The combustion chamber: open or closed. The first option is preferable if there is a chimney in the house. If not, then you need a device with a closed combustion chamber. The fan sucks in air from the street, and removes gases through a coaxial chimney built into the wall.
Ignition can be of two types: electric and piezoelectric.
- Electric. This is the most economical type of ignition. It does not require an igniter with a constantly burning flame, which leads to excessive gas consumption. Savings can be up to 100 liters per year. There is one more advantage: if there was a power outage, then when it is supplied, the device will start up on its own.
- Piezo ignition. It involves manual activation, which makes it less effective.
Depending on the required features, boilers There are single and double loops.
- Single-circuit. Designed exclusively for space heating. The operation of such units is ensured by connecting to a storage water heater.
- Double-circuit. These devices perform two functions: heating and hot water supply (DHW). They are more complex structurally and more diverse in configuration.
Heat exchangers serve to transfer the heat obtained from the combustion of fuel to the coolant. They can be of two types:
- Separate. Consist of primary and secondary heat exchangers. The first transfers the heat of the burnt fuel to the coolant. The second is designed to exchange heat between the coolant and running water.
- Bithermic. This is a combination in one block of two main functions: heating and hot water.
Principle of operation
The operation algorithm of a single-circuit boiler is quite simple. The coolant heated by the burner enters the heating system. The circulation pump operates continuously.
Double-circuit create heating and hot water supply. At the same time, the type and power of the device assume the supply of hot water to one or two points of intake. When hot water is drawn in, heating operation is automatically stopped.
If two sampling points are supposed, it is better to install the device at an equal distance from them. This will reduce the waiting time for hot water.
Also watch a video about the device of a wall-mounted gas boiler:
How to choose a wall-mounted heating boiler?
When choosing a gas unit, the main points are taken into account:
- the required volume of hot water;
- volume and power of the device;
- type of heating system;
- equipment manufacturer.
The required power is calculated very simply. It is necessary to summarize the area of u200bu200ball rooms that need to be heated, and divide the result by 10. For example, with an area of 200 m2 the required power of the device must be at least 20 kW. But it is better to take equipment with parameters that slightly exceed the calculations.
An important factor is power supply stability. Devices of European manufacturers react negatively to power surges. This requires the use of voltage stabilizers.
Selecting an installation site is an important point. If for floor-standing devices the equipment of a separate room is considered ideal, then wall-mounted devices do not require this.
Dimensions and design modern wall-mounted boilers allow you to strengthen them anywhere. But the best place for this is the kitchen, bathroom or hallway. The location of the device in an unheated room will lead to heat loss, excessive gas consumption.
The walls of a private house, which retain heat well, make heating the most efficient. And this allows you to choose a less powerful unit, which saves money.
In addition to country houses, it is quite possible to install wall-mounted boilers in apartments. This can improve the heating of your apartment, without depending on the whims of housing and communal services workers.
The best manufacturers and prices for gas boilers
Manufacturers of gas equipment are focused on all consumers. It is possible to pick up heating devices of any firms in reasonable prices.
German and Italian companies are considered leaders in the production of gas equipment. – Vaillant, Bosch, Viessmann, Beretta, Baxi.
Germanic quality has always been valued. 20 years of uninterrupted operation for German gas equipment is considered the norm. Elements of heat exchangers are copper, covered with protective oxide films. The dimensions of the boilers are compact, and the external design allows them to fit into any design configuration. The efficiency of such units is very high — 90–93%, and the assembly is of high quality.
In 2010, he installed in a house with an area of slightly more than 180 m2 German boiler Vaillant with an open combustion chamber, 24 kW. In tandem with him, he installed a voltage stabilizer Calm.
In the first winter, the house stood without external insulation and the installation worked almost at full capacity, constantly maintaining the temperature up to 90 degrees. The device withstood the test with dignity, though the gas bills were huge.
A couple of years ago there were pressure surges in the system, it turned out that the expansion tank was leaking. Was replaced under warranty. But in general, there are no problems with the operation, once a year I clean the combustion chamber with a vacuum cleaner and drain the water from the circuits.
Italian the devices are practically in no way inferior to the German ones. Baxi fifth generation appliances are equipped with atmospheric burners, which makes their operation almost silent.
Korean devices are inferior to European ones, but they have a built-in voltage regulator.
Patriotic equipment cannot yet be compared in quality with German or Italian equipment, but it is unpretentious and preferable in terms of price.
ISHMA BSK units are non-volatile. This makes them resistant to power outages. But to create a heating system, they need to buy additional equipment.
How much does a wall-mounted gas boiler cost:
- German – from 40 000 r;
- Italian – from 32 000 r;
- Korean – from 22 000 r;
- domestic — from 14 000 rubles.
Almost all devices are equipped with automation that ensures their operation without human intervention. These include thermostats, daily programmers. With the help of the latter, you can program the operation of the boiler for a day.
There is also a flame detector that turns off the gas if the flame disappears. The device will turn off if the power supply, gas supply is interrupted, the volume of the coolant decreases or the draft is disturbed.
Installing a wall-mounted gas boiler, requirements
The most difficult thing in the process of installing gas equipment is obtaining special permits and compliance with the necessary requirements. The easiest way to do this is by a company engaged in such work. Of course, you will have to pay for such services additionally. The cost of installing a double-circuit wall-mounted boiler starts from 80 dollars.
It is forbidden to carry out work on the installation of heating equipment on your own. Yes, this is unsafe. You need to have not only permission to perform such work, but also experience. Therefore, we do not recommend installing a gas wall-mounted boiler with your own hands.
If everything is done according to the rules, the wall-mounted appliance will not only become a source of heat, but will also please with its appearance. You should not save on high-quality automation — all its advantages will pay off.