Install an inverter-battery system, select the heating gravitational system or simply put the voltage stabilizer - we tell about these and other ways to protect the heating system from interruptions.
Most often owners of country cottages face the disconnection of electricity. Short-term power supply interruptions do not lead to a noticeable decrease in temperature in the house. In modern buildings with thermal insulation, stopping the heating system by 3-4 hours due to turning off the electricity can lead to a decrease in the temperature in rooms by 1-2 ° C, which, in general, is noncritical. With longer shutdowns, the use of autonomous power sources will be required.
1 Install an inverter-battery power system
To save the heating system, you can use the inverter-battery pack of a relatively small capacity. For example, the power consumption of a gas boiler with a closed combustion chamber (with an electric fan) and the circulation pump of the heating system will be approximately 250 W / h (150 W - a boiler, 100 W - pump), the battery with a capacity of 200 a / h can keep them in working condition Approximately 6.5 hours. And if you have a non-volatile boiler (with an atmospheric burner), then only the circulation pump will consume energy, and the duration of the offline work will increase several times. The cost of such an inverter system will be 30-50 thousand rubles.
2 Install voltage stabilizer
To protect against voltage drops, the gas boiler must be equipped with a corresponding power supply unit that levels the voltage and protecting the control board elements. If there is no such unit, it is necessary to purchase and install equipment that replaces it - the relay (stabilizer) of the voltage and the protection device for pulsed currents (uzip). If the voltage relay serves only the line where the boiler is connected, it can be relatively low (for example, 300 W, if the power of the boiler is 250 W), but sensitive (with an accuracy of 3%).
Mounted all this equipment is not indoors with a gas boiler; The easiest way to mock it on a DIN rail in the shield. The set of relays and the Uzip will cost 5-6 thousand rubles.
3 Choose a gravitational heating system
Ideally, of course, the best non-volatile system, with a boiler with an atmospheric burner and a mechanical control system and with a so-called gravitational coolant circulation scheme. The gravitational system does not require the use of the circulation pump, the movement of the coolant in it occurs due to the pressure difference of two poles of the liquid (heated and cooled). This system does not need electricity at all. But the gravitational circuit of circulation has its own limitations and design features. It requires an accurate hydraulic calculation and design (laying pipes with a given slope, the use of pipes of a certain diameter, the installation of the boiler below the level of the heating devices and a number of other moments).Constructive scheme of the gravitational heating system
1 - boiler; 2 - Highway with a hot heat carrier; 3 - Highway with a cold coolant; 4 - expansion tank; 5 - radiators
H - Distance between heating and cooling centers
4 Select a device with a remote controller
Modern communication tools allow you to control the boiler mode remotely - you immediately receive a message if problems arise with the boiler.
Wall gas boiler GAZ 6000 W (Bosch)
Outdoor boiler with manual ignition KSG "Mimax", 7 kW
Room Sensor Cube S NE
Genus One Copper (Ariston)
Whatever heating devices you use, in the conditions of unstable operation of utility networks, it is important to be able to control their remotely and efficiency. Bosch has a Bosch Control CT100 room Internet thermostat that allows you to control the boiler via the Internet using the Bosch Control application available in the AppStore or Google Play. ARISTON remote control is built into ALTEAS boilers and is available for all ARISTON boilers EVO series, X and One when using the Cube S Net sensor. There are similar systems from other major manufacturers.
Gennady Toporov, Engineer on the product of the company "Boschin".
Over the city, problems also arise with the quality of electricity (voltage jumps), and with a pressure of the incoming gas (too low). All these troubles must be predetermined in advance. So, to work on a reduced pressure gas pipeline (about 10 mbar), you need to choose models capable of working at such a pressure. The boiler must also be protected from voltage jumps in the power grid. The corresponding modifications are in the range of many companies operating in the Russian market. They are usually called - adapted to Russian conditions. For example, the GAZ 6000 W (Bosch) boiler is unpretentious to the voltage drops (165-240 V) and gas pressure (9-17 mbar).