The heat supply system provides residential, administrative, industrial buildings and premises hot water, gas, heat and electricity. Such a system involves a complex of gas-using equipment, the operation of which requires a sufficient amount of fuel.
On at the moment liquefied petroleum gas (LPG) and liquefied petroleum gas are widely used as stored fuel for autonomous gas supply systems not connected to the main gas supply line. natural gas(LNG). In the markings on English LPG (liquefied petroleum gas) and LNG (liquefied natural gas), respectively.
LNG is a mixture of gases formed in the deep layers of the Earth during anaerobic decomposition organic compounds. Extraction occurs from reservoirs and from oil fields, where gas may be a by-product of oil. In some cases, gas hydrates, a crystalline form of natural gas, may be encountered.
LPG- this is also a mixture of gases, but obtained from associated oil gas or from the condensate fraction of natural gas through separation using an absorption-gas fractionation unit.
LPG and LNG can be used interchangeably. Liquefied petroleum gas can act as both the main type of fuel and a backup fuel in a gas supply system using liquefied natural gas.
Both gases are similar to each other in several respects:
- scope of application: heat and gas supply;
- ability to evaporate: gas is stored and transported in the liquid phase, which, subject to a certain temperature, is converted into a gaseous state;
- environmental friendliness: during combustion there is no release of sulfur compounds into the atmosphere, there is no soot and ash;
- low toxicity.
In their pure form, both gases do not have a pronounced odor, therefore, for timely detection of the substance in the air, odorants are mixed into the gas - ethanethiol, a mixture of natural mercaptans, etc.
Differences between liquefied gases LPG and LNG
Having a similar structure, parameters and physical and chemical properties, both gases differ from each other, which makes it possible to select the optimal fuel for the production line of the gas supply systems of the facility.
| Indicator | Liquefied petroleum gas LPG |
Liquefied natural gas LNG |
|---|---|---|
| Compound | Main substances: propane and butane, content not less than 95% Additional substances: pentane, methane, ethane, ethylene, propylene, butylene |
Main substance: methane, content 85-95% Additional substances: ethane, propane, butane, nitrogen, hydrogen sulfide, mercaptan sulfur |
| Storage method | or gas tanks | cryotanks in which a low temperature is maintained |
| To produce 1 Gcal it is necessary to burn normal fuel | 99.84 kg* | 104.48 kg* |
| Critical temperature above which gas liquefaction is impossible | 96.84°C (propane) | -82.5°C (methane) |
| Gas phase density at 0°C | 0.7168 kg/m 3 | 2.0037 kg/m 3 |
| Density of the liquid phase at 0°C | 416 kg/m 3 | 528 kg/m 3 |
| Specific heat of combustion | 45.58 MJ/kg | 43.56 MJ/kg |
| Gas concentration required for ignition | concentration of propane vapors from 2.3 to 9.5%, normal butane from 1.8 to 9.1% (volume) | from 4.4% to 17% (volume) |
| * The value is given conditionally, because the accuracy of the calculation directly depends on the composition of the gas used at the facility | ||
Based on the data in the table above, the key and most important difference is storage temperature. LPG is stored in gas tanks under pressure at a temperature close to ambient temperature. Insufficient evaporation of the liquid phase can be observed in the Far North, where the air temperature can be below -60°C. To improve the regasification process in such regions, liquid or electric type is installed.
LNG storage conditions are radically different. Liquefied natural gas may only be stored in fully sealed isothermal tanks (cryotanks) made of materials resistant to product storage temperatures. Inside the container must be constantly maintained low temperature about -163°C.
A boiler is a type of water heater that works on the principle of heating accumulated water. The boiler consists of a tank that holds and heats water, as well as a pump and heating device. Boilers operate according to the following algorithm: using a pump, the tank is filled cold water, after which the heating device automatically starts and the heating process begins. The heating temperature is set manually by the user. When the water temperature in the tank reaches the set value, the boiler automatically stops working.
The warm water in the tank begins to cool over time if it is not used. In this case, the boiler automatically starts and maintains the set temperature. Therefore, it is important to remember that in order to maintain the set water temperature, the boiler constantly operates, consuming electricity or gas.
Some users turn off the device after use to save money. However, this is not very effective technique, since for heating cold water You need at least an hour of time. The boiler begins to consume energy intensively, and sometimes the consumption is greater than during continuous operation of the device.
U storage boiler there is a significant advantage: you can set any water temperature, regardless of the jet power. What can't be said about instantaneous boilers. Also, any wiring can withstand the operation of a storage boiler.
Features of choosing an electric and gas boiler
Boilers can use different energy sources. Based on this, they can be classified into:
- gas;
- electrical;
- solid fuel;
- working on the principle indirect heating.
Today, solid fuel boilers are practically not used, since modern apartments are not designed to maintain their operation.
The most common types are gas and electric. They have their own operating characteristics.
- Electric boilers operate from a simple electrical network. They have low power - up to 3 kW and do not require connection to an enhanced power line.
- Gas water heaters have a fairly high power - 4 - 6 kW, so their operation will require twice the energy consumed. However, water heating occurs several times faster in time.
- Gas water heaters are considered more economical option, since it takes a little time to heat the water. In addition, electricity is more expensive than gas.
- Installing a gas boiler is a complex and expensive process. In this regard electric water heaters win.
- To install gas boilers, a chimney is required. Depending on what kind of combustion chamber is used (closed or open type) depends on how difficult the boiler installation will be.
Installing a device with an open combustion chamber is a complex and expensive process.
Boilers with combustion chamber closed type They are very easy to install, but the device itself can cost several times more.
The internal coating of the tank must have strong anti-corrosion properties, so stainless steel, titanium coating or a special material, glass porcelain, are most often used.
The material used to line the inside of the tank also affects the price storage water heater. The more stable the protective walls of the device, the more expensive it is.
Main task internal covering water heater - preventing corrosion and destructive processes. The service life of the device directly depends on this.
Today, the most common material for interior coating is glass porcelain. This material perfectly resists corrosion processes. But with sudden temperature changes, small cracks may form on it.
There is one way to increase the service life of a storage water heater - using a gentle heating mode. But at the same time, microorganisms may begin to multiply inside the tank, and to prevent this, from time to time you will have to heat the water to a high temperature.
The most stable are boilers coated with stainless steel or titanium coating. These devices can last more than 8 years. Among the disadvantages of such boilers is that rust begins to appear in the welding areas over time.
The most common type of boiler in modern apartments and private houses - gas. Such heaters operate on both natural and liquefied gas. They are valued for their simplicity and unpretentiousness of operation, efficiency, productivity, reliability and level of automation.
Floor standing gas boiler
Compare gas boilers It's difficult at random. In each individual case, you need your own model, suitable for specific operating conditions and tasks to be solved. A correct assessment of your personal needs and wallet capabilities helps you choose a gas boiler from a huge variety of types and versions.
Criteria for choosing a gas boiler
Gas heaters vary in cost, quality and performance. To evaluate which boiler is best for you, choose a unit based on the following criteria:
- Installation location. Boilers are available as floor-mounted or wall-mounted.
- Number of circuits. This factor depends on whether the boiler will be used for domestic hot water.
- Boiler type. Convection or condensation models are sold. The latter are more expensive, but also more effective.
- Type of draft and coolant circulation.
- Dependency on electricity.
- Type of thermostat and ignition method.
- Number of power control levels. The more of them, the easier and more accurately the gas consumption is adjusted.
- Material of manufacture and cost. Give preference to models made of heat-resistant and stainless materials. There is no point in saving on a boiler, although the price is greatly influenced by brand popularity.
When assessing the requirements for a boiler, taking into account personal preferences, take a sober approach to the choice and installation options of a particular heating system.
What is important here is the choice of power, taking into account the need to install ventilation, and in some cases, allocate a separate room.
Comparison by installation location
The popularity of wall-mounted heating boilers is due to their compactness. The efficiency of floor and wall units is the same. The differences lie in power. For wall-mounted heating boilers it does not exceed 35 kW.
Wall boiler
The dimensions and weight of floor-mounted ones are much larger than wall-mounted ones, and the power reaches 60 kW. They are used for heating large areas. Therefore, they are suitable for a private home, and wall-mounted ones are suitable for apartments. Floor-standing gas heating boilers require a special room, but it is not always available.
Unlike wall-mounted ones, floor-standing heating boilers do not have a pump in their design. For DHW they are equipped with additional boilers.
The main difference between the heaters is the material from which the heat exchanger is made.
In wall-mounted ones it is copper or steel, and in floor-mounted ones it is often steel, but sometimes it is cast iron, which is significantly better in terms of service life. According to statistics, a steel heat exchanger lasts up to 15 years, a copper one up to 20, and a cast iron one up to 25 years. True, the efficiency of cast iron is lower - no more than 80%. While Efficiency of steel– 90%, and copper – exceeds 91%.
For wall-mounted copper heat exchangers, it is considered the best because it provides fast heating, is easy to install and is less susceptible to corrosion.
Comparison of gas boilers by number of circuits
A comparison of wall-mounted and floor-mounted gas heating boilers by the number of circuits is correct depending on whether the organization of hot water supply is needed. Single-circuit and double-circuit heaters are equally good in terms of efficiency, reliability and functionality. But the former are used exclusively for heating, and the latter also heat water for hot water supply.
Double-circuit heater with built-in boiler
A double-circuit heater with a built-in boiler is suitable for buildings with a large area, that is, private houses. This is a floor standing boiler. For an apartment, choose a unit with a flow-through heat exchanger (wall-mounted). An indirect heating boiler is connected to it and the DHW issue is resolved in this way.
Comparison of boilers by type of energy use
Differences in gas boilers according to the type of use of generated energy, both wall-mounted and floor-mounted, have led to the emergence of two classes gas units heating:
- Convection. These are traditional heaters in which thermal energy not fully used. They are characterized by simplicity of design, installation and maintenance, and low cost.
- Condenser or condenser. This type appeared relatively recently, but shows extremely high efficiency, which reaches 110%. This performance is achieved by using the heat of the exhaust smoke. The air entering through the coaxial duct is heated by the exhaust gases escaping through it. The heat exchangers in such boilers are made of aluminum alloy or stainless steel, which are considered better because they are not afraid of aggressive compounds.
In terms of performance, efficiency and innovation, the choice should be made in favor of gas condensing heating boilers. But take into account the high cost of such devices.
The question is how much fuel will be used. If in large volumes, then purchasing a condenser heater is justified.
Condensing gas heater
Comparison by traction type
There are also differences in gas heating boilers in the type of draft. It can be natural or forced.
When an open-type combustion chamber is used, that is, an atmospheric burner, the combustion air comes directly from the room. In this case, combustion products - gases - come out naturally due to the difference in temperature and pressure.
Such a unit requires a separate room with ventilation. If the heater uses a forced-air burner and a closed combustion chamber, then air enters it directly from the street (from outside the room). Exhaust gases exit the premises through air ducts with a built-in fan. The last option is recommended for use in apartments. The best chimney– coaxial type.
They say that atmospheric units are more durable and quieter. This is true, but they burn oxygen needed for breathing. Therefore, a forced draft boiler creates comfortable living conditions in the apartment.
A supercharged burner is not so sensitive to pressure changes in the gas line.
Dependence of gas boilers on electricity
The differences between wall-mounted and floor-mounted gas heating boilers also lie in the presence of dependence on electricity. There are two categories of units:
- Energy dependent. These heaters require constant power supply from the mains. This is their most big drawback. Are different more automation, convenience and ease of use. In urban conditions this is an ideal option.
- Non-volatile. Such heaters do not require connection to an electrical outlet. Suitable for rural areas, since they do not depend on power supply.
Non-volatile heater
Used in gravity heating systems. The disadvantage is unstable and too slow startup.
Comparison by ignition type
There are varieties of gas boilers with electric and piezo ignition. In the first case, ignition is carried out automatically using an electric igniter. Such boilers are energy-dependent. They are more economical because the start is carried out simultaneously with the turn of the supply tap hot water for the opening.
The heater with ignition is started manually by pressing a button. The wick burns after the first start, which leads to the appearance of unpleasant odors.
Priority to comfort!
The differences between gas units do not end there. Rapid development electronics predetermined the creation of almost completely autonomous gas heating boilers with efficient systems management.
The introduction of programmable thermostats made it possible to implement the functions of programming operating modes and changing set temperatures for several days in advance. Automation has become the key to economical operation of boilers and the comfort of residents.
Heaters with ionization combustion control devices performed well. They instantly shut off the gas line if the wick or automatic burner goes out. And this, first of all, is safety.
If you purchase a volatile unit, then choose one with built-in electronics, LCD display, remote control remote control And additional functions protection.
The power of gas heating boilers is adjustable.
Control gas boiler
The way this is implemented is another difference between gas heating boilers. Regulator types:
- Single stage;
- Two-stage;
- With smooth adjustment.
The best of gas heating boilers are considered to be models with smooth adjustment, which makes it possible to more accurately regulate the parameter depending on the air temperature. This increases the efficiency of gas boilers and increases the comfort of living.
There are boilers that are controlled via the Internet from a smartphone, thanks to the use GSM module. This is convenient - you can adjust the temperature in the apartment without getting up from the couch and even while outside your home at a great distance.
The conclusion is simple - the more automation and functions, the better. Of course, choose a unit based on your personal wishes for functionality, so as not to overpay.
The video shows the features of choosing a gas boiler:
Comparison of manufacturers
To date best manufacturers gas heating boilers are based in Germany, Italy and South Korea. These are Bosh, Viessmann, Beretta and Baxi.
By and large, they are the same, except for the price.
Bosh models have a built-in self-diagnosis system and automatic settings. Boilers operate on natural and liquefied gas. Heat exchangers are made of copper coated with an oxide film to protect against corrosion.
Viessmann boilers have an improved smoke removal system. Ice never forms on the chimney. The efficiency of these devices reaches 93%.
Others, including domestic ones, have the same high characteristics and properties. Distinctive Features our gas heating boilers are simple in design, independent from electricity, affordable price and a developed service network.
Natural gas is supplied to the gas supply and heating systems of residential buildings, which, after being extracted from the ground, goes through a long process of preliminary processing. During this process, various substances are added to the gas, allowing it to be used for domestic purposes as efficiently and safely as possible.
Composition and pressure of gas in apartments
IN residential buildings and apartments we use gas, which contains not only methane, but also a whole range of additional components. Preliminary purification of gas and the addition of impurities to it is necessary to ensure maximum safety for the use of engineering systems in homes. The basis of the fuel is methane, the content of which can be 70-98%; the gas also contains:
- butane;
- propane;
- carbon dioxide;
- water steam;
- hydrogen sulfide.
Methane enters cookstoves and heating systems after traveling tens of thousands of kilometers through special pipelines. In such pipelines the pressure is very high and can be up to 11.8 MPa. For domestic consumption, this pressure is too high, so at gas distribution stations it is reduced to 1.2 MPa. Additional methane purification is also carried out in these communication facilities.
From school curriculum We know that natural gas is colorless and odorless, but during processing it is given a specific aroma by adding odorants - substances that are well recognized by the human sense of smell. Methane with an odor is much safer to use; the odor can be noticed during a leak and prevent accidents, fires and explosions.
Gas in city apartments has an odor due to ethanethiol and ethyl mercaptan. These are strong-smelling liquids that are sprayed into the methane during its processing.
How toxic and explosive is natural gas?
Since childhood, people have been instilled with a cautious attitude towards natural gas; we are told about its dangers, and this is true. However, the toxicity of methane is greatly exaggerated; if it is inhaled, it is almost impossible to get poisoned. Where then do those who die in gas-filled rooms come from? Victims of the gas die not from poisoning, but from simple suffocation. Natural gas contains carbon dioxide, which displaces oxygen from the surrounding space. It is because of this that it is very difficult to breathe in gas-filled rooms, and sometimes, in the absence of ventilation, it is simply impossible.
The main danger of methane is its fire and explosion hazard. These characteristics depend on many factors, in particular ambient temperature and pressure. Explosive situations arise when methane in a room becomes more than 15% of the total air mass. It is impossible to determine the percentage of methane in the air; this requires specialized measuring equipment.
The inability of a person to determine the level of danger in apartment building because of the gas in the air, it forces us to immediately shut off the gas supply system at the first sign of methane in the room. Having felt the characteristic aroma of natural gas, it is necessary not only to turn off the fuel supply to all appliances in the apartment, but also to turn off equipment that uses electrical impulses, which can cause a fire and explosion.
In gas-filled rooms, not only equipment operating from the power supply network, but also devices operating on batteries and accumulators can pose a danger to humans. Practice shows that with a concentration of natural gas of 15% or more, even mobile phone or laptop turned on. If you detect the characteristic smell of household methane, you should quickly turn off all appliances in the house, ensure good conditions (open windows and doors), and notify about the incident. emergency services.
Is it possible to protect yourself from an accident when operating equipment?
Gas is used everywhere in residential and non-residential buildings, so it is vitally important to know the operating rules gas equipment to protect yourself and your loved ones from possible emergency situations.
You can minimize the likelihood of gas leaks, fires and explosions by following the following recommendations from professionals:
- 1. Timely maintenance of equipment. Every year you need to call specialists to check the condition of gas equipment and draft in the premises.
- 2. High-quality ventilation. In rooms with installed stove or the heating boiler must always have a functioning system natural circulation air. In both winter and summer, ventilation grilles should be open and not insulated.
- 3. Disabling unused equipment. Gas equipment must be turned off and the gas supply must be shut off if you leave or leave home for long time. The same applies to electrical equipment.
- 4. Control over the operation of equipment. Operating gas equipment should not be left unattended for long periods of time.
- 5. Competent actions in case of emergency. If you detect a methane leak and a persistent specific odor in the room, you must call emergency services.
These rules are very simple, and their compliance does not require significant financial or time expenditure from the apartment owner, however, many forget about the dangers of gas supply, and therefore when using this engineering system They don’t remember even the most basic safety precautions.
What does the color of the burner flame tell you?
The flames in the burners can have the most different shades, which indicate the characteristics of fuel combustion. The rich blue color of the fire indicates the homogeneous structure of the gas that is supplied to kitchen stove. Homogeneous and high-quality fuel burns completely, emits environment maximum amount of heat and minimum volume of harmful substances.
There are often cases when apartment owners notice bright red or yellow. Any shades other than blue indicate that low quality fuel with air impurities is entering the burner. Low-quality fuel can not only be quite dangerous when used, but also produces significantly worse heating. Poor quality of gas will lead to the fact that to operate the heating system you will have to spend a larger amount of expensive resource and pay more on utility bills.
Because of this, we recommend paying attention to the color of the fire on the stove and in the boiler. Most often, management companies are responsible for supplying low-quality fuel to apartments. Representatives of management companies sometimes deliberately reduce the carbon dioxide and hydrocarbon content in fuel in order to increase their income. In any case, detection of a change in flame color is an excellent reason to contact the responsible authorities for clarification.
Poor quality operation of the gas supply system can not only increase the costs of users of an apartment or house, but also lead to premature wear of the installed equipment, its failure and even the occurrence of emergency situations. We are directly interested in natural gas being supplied to our homes high quality, therefore, if any suspicion arises about the content of impurities in the fuel, you should check the existing equipment by calling gas workers to your home.
There are conditions without which daily life a person will not be considered fully comfortable.
First of all, this various systems vital functions, which include heating and a source of hot water in the premises.
The first designs that allowed for efficient heating interior spaces buildings date back to the times of the Ancient Roman Empire.
Initially, this process was used solid fuel(firewood, coal, and so on), but the development of civilization has led to the possibility of using electricity, liquid fuel, solar energy, and natural gas for such purposes.
History of the development of gas boilers
The first mass production of gas equipment for heating water was established at the beginning of the 20th century in Germany.
The manufacturer was the Junkers company, which also used in its product an innovative technology at that time - a block automatic control the whole system.
The first domestic serial gas boiler appeared only in 1947. The model was produced under the name "Conord".
In world practice, the development of heating and water heating equipment depended on the availability of certain resources.
For example, in the USSR they mainly produced gas boilers, since the fuel for them was and remains very affordable.
In Europe, models powered by electricity were more valued.
Products that run on diesel fuel have sold well in the United States, and lately and solar powered.
Varieties and types of gas boilers
Gas equipment is divided according to its functionality and installation location. In the first case, the boilers can be divided:
To single-circuit.
For dual-circuit ones.
In the second:
On wall type installation
On floor option operation.
Each of these types has own characteristics, which should be taken into account when choosing the required model.
Single-circuit gas boilers
The main feature of this option is that its purpose is only to work in a space heating system. If the owner of the model wishes to use installed equipment also as a source of hot water in the house, then he will have to incur additional financial expenses - he will need to buy a special boiler that can be connected to this gas boiler.
Double-circuit gas boilers
Such equipment, in addition to working in the heating system, is also a source of hot water. Naturally, a double-circuit boiler is more expensive than a single-circuit version, but it is almost always cheaper than a tandem consisting of a boiler and a single-circuit model.
However, it is worth noting double-circuit boiler a number of disadvantages:
How more quantity consumers of hot water, the less efficient such equipment is (it is recommended to count on a maximum of three people who consume heated liquid from the boiler). Consequently, in other situations, the installation of a boiler or other water heating equipment will still be required, which will lead to additional financial waste.
The further away the point of water consumption is, the longer it will take to wait for the liquid to reach an acceptable temperature. Typically, experts do not recommend placing consumer taps at a distance of more than 7 meters of pipe from the boiler. Exceeding this limit will lead to a fairly long wait, as well as wasted water that will have to be drained.
Unlike single-circuit double-circuit boilers make it possible to connect several models of equipment into one full-fledged system at once, which is sometimes very convenient and effective
Wall-mounted gas boilers
The main advantages of this option:
Relative simplicity installation work.
Compact dimensions, which allows you to save on free space when installing a wall-mounted boiler.
The main disadvantage is the lower power, and therefore the performance of this option, compared to floor equipment. Consequently, such a boiler will become efficient in ordinary apartments or in small private houses, while in more serious cases this type will not work.
The wall-mounted option for placing equipment imposes certain requirements on its weight. Therefore, such equipment is made from lightweight materials that are not always able to withstand long-term use. This is another disadvantage of wall-mounted boilers - preventative repairs and maintenance will need to be performed more often than similar processes with a floor-standing model
Floor standing gas boilers
The floor-standing version of gas boiler equipment is considered more reliable and durable. One of the most important advantages of this type is its higher power, which allows heating fairly large private households or several apartments at the same time.
Disadvantages of floor-standing gas boilers:
Increased weight of equipment, since the main materials used in their creation are steel or cast iron.
Large dimensions of models. This equipment requires quite a lot of free space, since its operation very often requires installation additional elements, for example, pumps, taps, boiler and so on.
Two main disadvantages contribute to the complexity of the installation process and almost always require a separate room for installation floor boiler, especially considering the fact that such models make quite a lot of noise during operation.
Differences between different types of boilers
Gas boilers also differ in the type of burner and the method of removing combustion products.
Burners are:
Atmospheric. Natural air supply necessary for flame operation. Requires good ventilation in the premises. Characterized by the presence open chamber combustion.
Fans, or as they are also called - turbines. Forced air supply. Characterized by closed camera combustion and the presence of automation. The disadvantages of such systems include increased level noise and the need to connect to electrical network(for operation of built-in fans).
Diffusion-kinetic. Something in between the first two types, when air is supplied to the combustion chamber in certain portions. A rather rare option in household equipment - usually used in industrial settings.
Combined. Allows you to use several types of fuel (gas, wood or fuel oil) without changing the burner. The versatility of the system has led to a number of disadvantages: lower efficiency, high cost, design complexity, which increases the time and cost of preventive and repair work.
According to the type of removal of combustion products, gas boilers are divided:
On a model with natural traction. The combustion products of gas boilers are lighter than air, which is why this fact is used in equipment with natural draft. To operate such models, you must have a special chimney with good air exhaust. Typically, such boilers are installed in private houses, where a riser for gas removal can be built separately.
For equipment with forced gas removal. These models are equipped with fans that forcefully remove combustion products from the boilers. Requires connection to an electrical network. Typically, such gas boilers are installed in apartments.
Advantages and disadvantages of gas boilers compared to boilers using other fuels
The main advantages of gas boilers:
Fuel (natural gas) is cheaper than using electricity, wood, coal or fuel oil for a similar process.
Coefficient useful action gas boilers are higher than the same parameter for analogues.
Main disadvantages:
Higher cost of installation work. The owner of a gas boiler will need to collect additional documents and obtain permission from Gaztekhnadzor. Naturally, this requires a waste of time and additional money.
To ensure the safe operation of gas equipment, installation will be required additional systems and designs. This is, first of all, the installation of a chimney and gas alarm.
Requires a gas line in most cases. Equipment operating on bottled gas is not economically viable.
What else you need to know when installing boilers
Gas boilers are considered the most common type of system individual heating in the private possessions of citizens of our country.
Modern gas boilers are controlled by electronic boards that have many sensors to protect against emergency situations.
The boards also control various valves, turbines, control the temperature and automatically ignite the gas.
But they have a drawback - sensitivity to voltage changes and surges.
Installing a voltage stabilizer or voltage control relay will help protect the board from damage and subsequent repairs.
The stabilizer maintains the voltage at a constant level, smoothing it out, and the control relay turns off the voltage if a jump occurs.
