In buildings connected to the gas distribution system, it is advisable to install gas boilers - devices that are suitable both for ensuring the operation of the heating system and for heating running pipeline water. The owners are attracted by the long service life and the relative cheapness of the operation of this equipment.
In addition, a gas-fired boiler can be easily automated by installing temperature sensors and control elements. An extensive range of units allows you to choose the most suitable one for each specific case.
Compared to other models
The main advantage of gas boilers is high efficiency - about 90%. The passports of some models indicate that their efficiency reaches 107-109%, but in reality this is just a successful marketing ploy. It is known from a school physics course that not a single device in the world can have an efficiency of 100% or more than this value - otherwise the unit turns into a perpetual motion machine!
Below we will talk about why manufacturers overestimate the figures. However, a gas-fired boiler significantly outperforms equipment of another class in terms of efficiency. A worthy alternative to it can only be a pyrolysis unit.
The next advantage of a gas heating boiler is a long service life, which is explained by the simplicity of the design. The equipment does not have complex components, all its main parts can be easily replaced.
The main element of the boiler is the burner - its device determines the way the fuel is burned, and also affects the efficiency of the unit.
Only solid fuel boilers have the same reliability as gas boilers.
Another advantage of gas-powered equipment is high power. Unlike electric and solid fuel boilers, gas boilers have proven themselves in heating large spaces. At the same time, temperature control in all rooms is carried out with high accuracy: solid fuel and diesel boilers do not have such a function.
Pros and cons
In general, the advantages of gas heating boilers include equipment properties such as full automation, long service life, fuel availability and high efficiency. But the boiler also has disadvantages. Among them it is necessary to highlight:
- exactingness to operating conditions;
- the need for permission to install a heater in Gaztekhnadzor;
- lack of economic benefits when heating rooms with an area of less than 100 m2;
- burner smoking due to equipment wear.
In Russia, one more factor is added to the listed factors: pressure drops in the gas distribution system. This can shorten the life of the unit: if the gas flow is weak, the burner will start to burn itself. Therefore, it is recommended to purchase gas heating boilers adapted to Russian conditions.
Classification and principle of operation
Depending on the functional features, there are gas boilers two types: single-circuit - designed exclusively for heating the coolant in the heating system and double-circuit - have a more complex principle of operation, simultaneously heating both the coolant and running water in the water supply system.
A single-circuit boiler, if desired, can be equipped with an indirect heating boiler. This will allow heating water for household needs. True, the cost of a gas boiler with a boiler will be higher than in the case of buying a conventional double-circuit unit. In addition, it will be more difficult to mount such a heating complex.
The double-circuit boiler has its drawback - a long waiting time hot water, especially if the distance between the heater and the faucet is more than 7 meters.
By power
According to the presence of power levels, gas boilers are single-stage and two-stage, according to the method of fuel combustion - condensing and convection.
At the same time, condensing ones are considered more economical: their principle of operation is based on the release of additional heat from combustion products. As a result, the fire maintenance period is extended without increasing the amount of energy expended.
By installation method
According to the installation method, boilers are further divided into two categories - floor and wall. The former have great power, but the latter are more convenient to use and take up little space. Floor boilers come with air and atmospheric burners. An inflatable torch is a great option for households that face the problem of pressure drops in the gas pipeline.
In addition, the boiler equipped with it is suitable for liquid fuel service. In turn, the atmospheric burner has a device that enables it to operate silently. The removal of combustion products is carried out using natural draft through the chimney.
Natural draft can also be provided in the design of wall-mounted boilers. There are also models with forced draft: they have a shorter service life of individual parts that wear out during operation.
Peculiarities
It's all about the calculation method used by manufacturers. It takes up to 6% of energy to maintain the operation of a conventional boiler, up to 11% for a condensing boiler. The remaining heat is transferred to the water, and the manufacturer defaults to 100%. Therefore, in order to establish the exact efficiency of condensing equipment, it is necessary to subtract 11 from the indicator indicated in the technical data sheet.
As a rule, as a result, the coefficient is equal to 97-98%. This is much higher than that of solid or liquid fuel heating boilers. In terms of efficiency, only electric boilers can compete with gas boilers.
Gas and liquid fuel boilers have a similar device, the only difference is in the burner. If you replace it, the heater can be converted to work with another type of fuel. But it is not recommended to do this on your own, especially when it comes to turning a diesel boiler into a gas one: for this, you must definitely obtain permission from Gaztekhnadzor.
Each person chooses the best for himself. In the concept of "best" each of the buyers puts his own meaning. Reliability? Safety? Price? Appearance? All this can be correlated with gas boilers. What are the best gas heating boilers? It all depends on what features you prioritize.
Many gas boilers have an automation system, pumps that run on electricity. Such boilers cannot function without a constant supply of electricity. If there are power outages, such devices will not work.
It is necessary to consider: what type of boilers is suitable for floor or wall housing. If a high power boiler is required, then it is best to choose a floor type of equipment. The disadvantage of such a unit is that it is necessary to allocate a separate room for it. For an ordinary kitchen, a more compact option is suitable - a wall-mounted boiler.
It is worth considering such a characteristic of boilers as the type of combustion chamber. Equipment with an open chamber burns the air in the room. Such boilers require an equipped chimney and a constant flow of air from the outside. It should also be noted that their body overheats, so a boiler with an open combustion chamber should not be installed next to counters, wooden furniture and curtains. Boilers with a closed chamber have a coaxial pipe in their structure, which absorbs air from the street and brings it back. Such a boiler is an economical option, since a uniform mixing of gas and air occurs in a coaxial pipe, so the boiler body with a closed combustion chamber does not overheat.
The modern market is to choose gas heating boilers to your taste, and which one is better for the buyer to decide. The choice of equipment depends on the needs that are most important to the consumer.
Service life of a wall-mounted gas boiler
The life of a wall-mounted gas boiler is several times less than that of a floor-standing one. What caused such a significant difference? Direct dependence on the material from which the boiler heat exchanger is made: in all mounted boilers, the heat exchangers are copper, and in the floor boilers they are made of steel or cast iron. Copper gives the boiler relative lightness, but copper equipment is fragile and quickly becomes unusable. For such a heat exchanger, a high purification of the coolant is required. If it is not cleaned, copper will oxidize. With proper care, a copper heat exchanger will last 5-10 years. The service life also depends on the manufacturer. Mounted boilers have less power than floor-standing boilers, so often when used they have to work at full capacity, this reduces the life of the equipment.
Service life of floor boiler
Floor boilers have a much longer service life than mounted boilers. This fact is also determined by the material of the heat exchanger. A heat exchanger made of steel or cast iron, with proper operation and installation, will last up to 20 years. Floor boilers are much more powerful than mounted boilers, so they are rarely turned on at full power. If you periodically carry out deep cleaning of the coolant, then the gas boiler will serve for more than a dozen years.
Each manufacturer declares its warranty periods for the operation of gas boilers, which are based on their technical specifications. Tip: for greater reliability, it is necessary to purchase gas equipment only from trusted brands, for example, and also trust their installation of boilers to professionals.
The cost of gas boilers
The cost of gas boilers for domestic use varies quite widely. Gas equipment, by comparing the indicators for the quality of work, safety, service life, ease of use, economy, you can create a conditional classification of price categories.
The price of gas heating boilers can be classified into 3 groups:
- High-quality and expensive gas boilers of German brands.
- The average price of a gas boiler with good quality equipment of Italian companies Ariston, Baxy, Beretta, Ferroli, Baxy, Fondital; Czech companies: Mora, Viadrus, Dakon; Korean firms: Olympia and Kiturami; Spanish firms: Roca; Japanese company: Rinnai.
- Cheap gas boilers of domestic companies: Zhukovsky machine building plant, "Lemax", "Rostovgaz oapparat", "AGRORESURS".
Overview of gas boilers
"Prometheus" is a well-known domestic brand of energy-independent floor-standing boilers with a steel heat exchanger. Prometheus models are used to heat rooms with a large area of up to 750 square meters. meters. The efficiency is 92%. Microflare burner with automatic ignition, steel plate heat exchanger ensures efficient and safe operation of the heating system. This company produces not only high-quality models that can successfully heat areas from the size of one apartment to large buildings of various functions, but also affordable. Gas boiler "Prometheus" - the best combination of quality and price.
Neva gas boilers are a St. Petersburg brand of Gazapparat OJSC, which specializes in the production of gas boilers and water heaters. The company carefully checks and tests all equipment for performance, electrical safety and tightness. The range of gas boilers is represented by 3 classes suitable for any wallet: “economy class” (Neva brand), “comfort class” and “premium class” (Neva Lux brand ). Since 2005, the company has been assembling wall-mounted gas boilers from ready-made purchased European kits. Since 2007, she has been manufacturing Neva Lux equipment, which has parts manufactured by the company itself. All boilers are made in modern design, the consumer can purchase equipment at an affordable cost.
The Korean company Daesung is a leading manufacturer of heating boilers. The company's boilers are economical, of excellent quality and safe in operation. The first heat exchanger is made of copper, therefore it has a high efficiency and, accordingly, a long service life. The second heat exchanger is made of steel plates, so there will always be hot water in any quantity and instantly. The boiler is usually used to supply hot water.
Mimax LLC is a domestic company, the main direction of which is the manufacture of automatic gas equipment. Mimax gas heating boilers have a 3 mm thick steel heat exchanger, thanks to which they have excellent heat dissipation. When assembling the equipment, heat-resistant materials are used, which can significantly reduce the temperature of the outer case to 40 -50 °C. The efficiency of the company's boilers is 87%. The service life of heating equipment is more than 15 years. The Mimax company has developed a series of universal boilers that operate on both gas and solid fuels. Wood, coal, peat are used as fuel. The average time of transition from one fuel to another does not exceed 1 hour.
Gastroy LLC is engaged in the production of gas boilers trademark"Ochag", which successfully sells 40 types of heating boilers. Among them are gas boilers for heating the hearth, designed to provide heat small spaces area of about 1000 m². All Ochag devices are easy to use, have an excellent level of quality combined with reasonable prices.
Protherm's Medved gas boiler has a heat exchanger constructed from several links. This design allows the combustion of fuel to give off heat to the heating water as much as possible. Advantages of heating equipment of the Medved series: compact dimensions of the boiler, easy installation, simple control, coefficient useful action is 92%, maximum heat recovery with minimum losses, regulation in two steps.
Decent models are presented on both the domestic and European markets for heating equipment, from which you can choose a boiler that suits you in terms of functionality and price.
Condensing boiler type
No matter how fast they develop modern technologies alternative heating systems, the most economical and efficient type, today remains the gas type of heating. Its installation requires several permits from the relevant authorities, but the low cost of fuel, ease of operation and relatively uncomplicated installation, make this type of heating device one of the leaders in popularity.
Gasdouble-circuit boilers vary by type of installation:
wall
floor standing
The difference is due to differences in design. floor version more powerful and heavier. It has a heat exchanger made of cast iron - a service life of up to 20-25 years. This material is quite sensitive to mechanical damage and thermal shock. Topping up the coolant must be done after stopping and completely cooling the circuit. With this in mind, manufacturers produce sectional, collapsible cast-iron heat exchangers for ease of dismantling and repair.
Steel heat exchanger. More resistant to damage and sudden changes in temperature, but susceptible to corrosion. Lighter and less expensive. Service life 10-15 years.
V wall boilers
usually copper heat exchangers are used, which have a much higher heat transfer coefficient. There are additional benefits:
- Light weight and compact size.
- Relatively low price.
- Suitable for installation in apartment buildings.
Flaws:
- Short service life - up to 10 years.
- Low power - up to 65 kW.
- Sensitive to the quality of the coolant.
- It is not recommended to install together with aluminum heating radiators - it enters into a galvanic reaction.
By design type:
1. Single contour. They are used exclusively for heating the coolant in the heating system.
2. Double-circuit. They have an additional hot water heating circuit. Despite the fact that for successful operation in both modes, a double-circuit boiler must have more power, its installation is both financially and technically more justified than installing a single-circuit boiler and a separate boiler for hot water.
According to the method of heating water for hot water supply, double-circuit boilers are divided into:
Flowing
Boiler
Indirect heating boilers
Combined
Layered method of heating water
Flowing. Boilers of this type have 2 heat exchangers: primary - used to heat the coolant.
A variant of a joint unit with a full pre-mix burner is possible.
Secondary plate heat exchanger for domestic hot water. 
Recently, boilers with a bithermic heat exchanger have been produced. 
Technically, it looks like a DHW pipe with a figured section, located in a heating pipe.
This design provides a number of advantages:
- Reduces the size and weight of the boiler.
- When heating water for domestic hot water, the heating of the coolant is not turned off.
Flaws:
- Increase in cost.
- The small diameter of the tubes requires a more powerful circulation pump and reduces the flow of hot water or, with intensive use, its temperature.
- The entire heat exchanger must be replaced when scale is converted on the DHW pipes.
- When repairing the DHW, the entire boiler will be stopped.
Considering that most boilers with a DHW flow heating circuit turn off the heating of the coolant during its operation, a boiler-type system was developed.
Boiler rooms. Built into the boiler body storage tank 7-100 l. which stores hot water. 
Advantages:
- Does not switch to water heating with little use.
- Hot water is always available.
- Providing hot water at the lowest pressure in the water supply system of 2-2.5 l/min.
- Large output of hot water up to 10-14 l/min.
- Possibility of simultaneous use from 5 points of consumption.
Flaws:
- Dimensions are larger compared to single-circuit ones.
- The price is higher than the flow ones.
All tanks in modern storage tanks are protected by a layer of thermal insulation to reduce heat loss and have an internal bactericidal coating or are enamelled. The temperature control sensor turns on automatic water heating.
In turn, there are several technologies for heating water in a boiler:
Boilers of indirect heating. The water in the tank is heated through a coil, through which the coolant circulates from the heating system. 
Combined. In addition to the flow coil, they are equipped with an additional heating element .. it can be an electric heating element or a heat exchanger connected to alternative sources thermal energy - solar collector or heat pump.
Layered method of heating water. The principle of heating water for hot water with this method is the supply of hot water from a flow plate heat exchanger to an insulated tank for further storage and use. Water supply and intake is carried out from above. To protect against corrosion, such tanks, in addition to the enamel coating, are equipped with magnesium anodes.
Advantages:
- Instant access to hot water.
- Small volume.
Flaws:
- The same as for flow boilers - corrosion and scale formation on the flow heater.
- Considering small size tank, hot water runs out quickly with heavy use.
Condensing boiler type
The principle of operation of such a boiler is to cool the hot products of combustion in a special secondary heat exchanger from 150 C to 55-58 C. During recuperation, the temperature that is released during the condensation of water vapor goes to heat the coolant or water for hot water supply, which significantly increases the efficiency of the heater.
Advantages:
Profitability. On average, up to 15% of fuel is saved.
Environmental Safety. Reduced emission harmful substances in atmosphere.
High efficiency. Almost all manufacturers regulate the efficiency of products of this type at the level of 103-114%. Undoubtedly, this is just a marketing ploy, but its level is still the highest among all boilers with gas fuel.
Flaws:
High price.
It is necessary to additionally arrange drainage for the removal of aggressive condensate.
Features of the installation of double-circuit boilers
Before starting the installation, it is necessary to determine what type the combustion chamber is on the purchased boiler. If to open - combustion products are removed naturally through the chimney. The closed type uses a coaxial pipe and with forced ventilation. Such a pipe must be at least at a height of 220 cm and protrude from the wall at a distance of more than 18 mm. It is necessary to have a slight slope for dripping condensate, the outlet is closed with a protective mesh. Obstacles in front of the extreme edge of the coaxial pipe must be at least 15 cm in front and 25 cm above.Brackets for wall-mounted boilers with a boiler must take into account the weight of the water in the DHW tank and in the expansion tank, if it is included as standard. For a floor-standing boiler, it is advisable to fill a special foundation of a small area with fixing anchors.
Before installing a new boiler in an old system, it is imperative to clean and flush the heating system, and completely clean the chimney. The pipe connecting the outlet system of the boiler with the chimney must be metal, resistant to aggressive liquids and temperature effects.
Boilers that do not have a boiler, it is not advisable to install further than 5-8m. from the hot water point of use.
Manufacturers of boilers of popular models
GermanyVaillant
One of the most reliable and popular manufacturers. Specializes in the production of heating equipment. The actual leader of sales in Europe. Last year, 2.7 million units were sold. It occupies 27% of the domestic gas heating appliances market. It has many model ranges of floor, wall-mounted, single and double-circuit boilers, of various capacities and wide functionality. The main difference and advantage over competitors is the high reliability of products.
At the moment, one of the most popular model ranges is eco TEC plus. 
Wall-mounted, gas, condensing, double-circuit boiler is designed using a number of patented technologies of the company:
The "hot start" function - hot water in the DHW system appears after 5 seconds.
Automatic increase in power when switching to hot water heating mode - APR (Aqua-Power-Plus) - the temperature of the coolant in the heating system does not drop.
The Aqua-Kondens system is used for primary heating of hot water.
The flame modulating gas burner allows you to adjust the power in the range of 28-100%.
Average efficiency for heating season – 109%.
Small emission of harmful gases into the atmosphere.
Improved control and communication system - eBus.
light weight(30-42 kg) and dimensions (720 x 440 x 335), power within the range of 15-45 kW.
Bosch
This brand has united several companies: Bosch Thermotechnology, Junkers and Buderus, which has 100 years of experience in the development of heating equipment. During this time, many technologies have been accumulated and improved. Last most successful model from the Bosh Condens 2000 series included the following improvements in its design: 
Bithermic primary heat exchanger.
Adjustable fan.
Gas-burner with pre-mixing technology, conversion to LPG is possible without changing the nozzle.
DHW temperature modulation and two ready modes: ECO - heating on command, COMFORT - constant availability of hot water.
Improved Bosch Cotronic 3 control module:
- Self-diagnosis of breakdowns;
- Frost protection;
- Protection of the pump from blocking.
- System of removal of thermal inertia from the heat exchanger.
Efficiency - 102.5%
Viessmann
Founded in 1917. The company specializes in the production of heating equipment. It has 23 factories in 11 countries. It supplies products to 74 countries of the world. The power range of the manufactured equipment is 1.5-116000 kW. The most popular models for home use from the latest Viessmann Vitodens range: 
The MatriX type burner has a long service life.
Heat exchanger Inox - Radial - made of stainless steel, resistant to corrosion processes, the original shape promotes self-cleaning from scale.
"Quick start" for domestic hot water provides an integrated storage tank of 46l.
Variable speed fan with low power consumption. Possible long work from the BBP system 650 W.
A wide range of manual temperature adjustments and several successful economical operating modes - “seasonal”, “shower”, “without a host”.
Italy
Hotpoint-Ariston
Leading company in Italy for the production household appliances in general and heating technology in particular. Ariston was founded in 1930. In 2007, it merged with the British company Hotpoint. The company's products have an ergonomic design. Since the merger, the company has taken a course to expand the functionality of products while simplifying the management process.
The latest developments in the field of heating technology are represented by the Ariston CLAS PREMIUM FF model range: 
The power of the boilers of this model range is 24-100 kW.
Efficiency - 110%, fuel savings up to 35% compared to boilers of the same functionality from other manufacturers.
Full adaptation to work in Russian conditions. Operating gas pressure from 5 mbar at ambient temperature up to -52 C.
Possibility of separate power adjustment of two circuits.
Stainless steel premix burner.
Continuous electronic flame modulation.
Automatic removal of air from a copper and all system of heating.
Semi-automatic water replenishment of the coolant in the system.
Protection against freezing and scale formation.
Both the main - spiral, and additional - plate heat exchangers made of alloyed stainless steel.
Three-way valve, hydraulic group, with motor drive.
Control panel with digital display, with self-diagnosis function, detailed log of emergency codes.
Biasi
Specializing in heating equipment. Founded in 1938. Thanks to its own iron smelting production lines, it has a closed type of production. That allows you to control the quality of products at all stages of the creation of units and assemblies. At the moment, it unites 7 factories and metallurgical plants. Offices are located in 40 countries around the world. All production is highly automated, which has a positive effect on the quality of products. A very popular model in European and Russian markets BIASI PARVA CONDENSING NAT. 
The most popular models are 24 and 32 kW.
Efficiency - 92%.
Stainless steel heat exchangers with additional protective coating.
Heater NOx Class 5 with full premix.
DHW magnetic relay.
IPX4D auto protection level.
Ability to connect outdoor temperature sensors and remote control (not included in the standard package).
The presence of a large number of protective programs:
- Adjustment of the re-ignition frequency.
- Control of presence of the heat carrier in a contour.
- Protection of the circulation pump against jamming.
- Frost protection.
- Control of the chimney (coaxial hood).
Italian companies:
Beretta.
Immerges.
Baxi.
Nova Florida.
Hermann.
weller.
Feroli.
Fondital.
French companies:
Chaffoteaux.
South Korean companies:
Kiturami.
Navien.
Turkish companies:
airfel.
Demarad.
Ukrainian companies:
Aten.
Czech companies:
Protherm.
What you need to pay special attention to when choosing a gas boiler
With such a variety of different models, it is difficult to make your choice in favor of a particular one. But the price should not be the main selection criterion. For efficient operation, a modern boiler must meet a number of basic requirements:1. The No Frost system that prevents freezing of the main components of the boiler, and in an improved form and common system heating.
2. Advanced or universal type of burner - conventional ones are not very economical.
3. Basic equipment should include:
3.1. Membrane-type expansion tank with a volume of at least 7% of the total volume of the heating network.
3.2. Circulation pump.
3.3. A set of sensors for controlling the temperature of the coolant in the boiler, on radiators, and preferably an air temperature control sensor.
4. Boilers of foreign manufacturers must be adapted to the gas and electric networks of Russia.
4.1. The presence of an automatic burner on a piezocrystal or electric spark is mandatory. It is desirable to have a palnik with an incandescent element, which will make it more economical and safe work boiler with low-calorie or unrefined fuel.
4.2. Products must be certified.
4.3. The operating pressure range of gas and water is preferably the widest possible.
4.4. Built-in surge protection system. Otherwise, you will have to buy and install an expensive filter. The ability to connect via a UPS with an output to an external battery is welcome.
Only after the presence of all the listed nodes and the fulfillment of the requirements, it is possible to compare the price of devices of comparable power.
Any modern household heating device is a rather expensive equipment, which is characterized by its service life. There is on the market a large number of various models of gas boilers, which differ in different performance characteristics, price, manufacturer.
In the article, we will consider on what factors the service life of a gas boiler depends.
You can find out the price and buy heating equipment and related products from us. Write, call and come to one of the stores in your city. Delivery across all territory of the Russian Federation and the CIS countries.
Gas boiler
Service life of a gas boiler
As practice shows, on average, economical gas boilers produced today can successfully operate for 8-15 years. Their service life is most directly affected by the quality of working parts in contact with water, these include circulation pump and a heat exchanger.
User Reviews! I have a Kiturami floor boiler, it says in the instruction manual that the estimated service life is 18 years. It has been successfully operating for 10 years.
If the water hardness is too high, salt deposits may form on the walls. In order to improve the quality of the coolant, it is necessary to install. They contain polymer salts, due to which the hardness of water is reduced to normal.
The cost of heating the coolant will be less and, accordingly, the fuel will be consumed in smaller quantities. The duration of the service life is affected by the intensity of the work of mechanical elements, for example, in a pump. That is why it is necessary to constantly carry out Maintenance and replace gaskets, seals and rubbing parts.
User Reviews! The service life of the Baksi boiler pleases. For 9 years now, the unit has been functioning without failures and malfunctions.
In addition, the service life depends on the quality of electrical energy. Too weak or vice versa overpowering voltage equally negatively affects the work:
- automation;
- ignition module;
- etc.
You can solve this problem by means of which are able to withstand indicators with an accuracy of 3-5%, thereby protecting the boiler from failures and malfunctions.
It's also better to install uninterruptible power system Or at least a network filter. These parts will keep the electronic part of the boiler from failing during strong voltage drops.
Nuances that arise during operation
V heating system you need to try to prevent the appearance of corrosion, and when it occurs, you need to get rid of its foci. This is facilitated by the removal of air from the lines and radiators. Most of all it concerns open heating systems.
In order to remove rust particles, you need to use special inhibitors ( additives that enter into a chemical reaction in problem areas).
In the summer, you need to monitor the system to see if there is air. Many users use closed systems and - for open. Practice shows that such procedures are quite effective.
In order for the gas boiler to be able to successfully operate not at the maximum of its capabilities, you should purchase a device with a certain power reserve.
If there are frequent pressure drops in the heating system, then you need to urgently look for the root of the problem. If you do not pay attention to this and delay the time, then your heater may simply fail. The reasons for this may be:
- Shortcomings in the installation of the system, in the case when the required slopes are not observed, in connection with this, the radiators are aired.
- Wrong points for mounting automatic air vents.
To ensure stable pressure in the system, it is necessary to choose the right expansion tank. For a coolant volume of 60 liters, a tank will be required, the volume of which will be 6 liters. If the amount of water exceeds the norm, then pressure drops may occur during the cooling / heating cycles, which will negatively affect the characteristics of the parts included in the system.
Thus, only compliance with all operating rules can extend the life of a gas boiler.
For heating and a constant supply of high temperature water, a variety of efficient equipment. Particularly noteworthy are the quality ones, which are presented in a large assortment.
The operating instructions for hot water boilers are quite simple and understandable. The consumer is offered a variety of models of such equipment, so it is possible to choose exactly the one that will be most effective in terms of its parameters in each specific case of the heating system device.
The main reason for the popularity of boilers of this kind is that their service life is longer than that of ordinary simple boilers, moreover, the quality of the hot water supplied is much better.
Now water-heating devices are being produced that are able to operate on this type of fuel, such as:
In addition, there are high-quality ones that are able to work on different fuels, they are characterized by the ability to switch modes.
Rules for the operation of hot water boilers
For the installation of heating systems, wall and floor boilers are used.
The latter are able to work on any type of fuel. Before operating the device, it is necessary to perform it strictly on the floor surface, it is better if a separate room is allocated for this. The operating instructions for the boilers must also be observed.
The equipment is equipped with all the required automation, so the operation process is simple. While the instrument is in operation, human presence may be required only to perform certain temperature changes and to shut down the equipment in an emergency.
Modern wall-mounted devices are mounted on the surface of the wall. Such equipment has compact dimensions, is convenient in the process of use, it does not require the allocation of a separate room.
Without exception, all hot water boilers purchased from a trusted manufacturer have a fairly long service life, are relatively simple and light, economical and very quickly installed.
Features of use and service life of the boiler
Gas boilers are very popular. They are characterized by a long service life, high quality of work, as well as relatively simple maintenance. Wall-mounted gas boilers can be made in several modifications.
As a rule, for heating an ordinary residential building, special double-circuit modifications are used, which are intended not only for efficient heating and for hot water supply.
Single-circuit devices are used a little less often. They are used exclusively for space heating. In direct dependence on how air is supplied to a given heater, boilers equipped with special closed chambers can be used. It is important to note that during the installation of this device, it will be necessary to perform an air duct device.
The service life of a hot water boiler, subject to all requirements, is quite long, on average from 10 to 20 years, depending on the type of equipment. Duration of operation before the first cleaning from internal pollution is at least 3000 hours. The service life between overhauls is at least 3 years.
Full service life of boilers (with an average duration of operation of the boiler per year - 3000 hours): with a capacity of not more than 4.65 MW - 10 years; with a capacity of up to 35 MW - 15 years; with a capacity of more than 35 MW - 20 years.
The use of heating boilers with an open chamber
The process of operation of boilers that have an open combustion chamber necessarily provides for the use of air that is in the room where the equipment is installed.
Such wall-mounted water-heating units have some design features, which determines the peculiarity of their operation. This is the presence of elements such as:
The combustion chamber.
Expansion tank.
Pump.
A system that is designed to remove the main products of combustion.
Automation and security system.
Operating manual for hot water boilers
Immediately after implementation installation work, the boiler is connected to the network, as well as to the water supply system. The device is connected to the network, the process of heating water to a pre-set temperature regime begins.
As soon as the set rate is reached, the device automatically turns off. All this greatly facilitates the operation process, you do not need to constantly monitor the state of the temperature regime.
To ensure high-quality thermal protection, a special relay is provided in this device.
During the installation process, it is necessary to strictly follow the instructions that are set by the manufacturer.
In fact, this is a manual for the operation of hot water boilers. As a rule, all the main elements are supplied with the device, but it is recommended to first check the presence of all components.
Additionally, you may need some details and the device of related elements of the heating system:
Fittings for quality connections.
Water pipes.
Ventilation and exhaust system.
Electrical accessories.
Set of tools.
The basic principles of operation of this equipment are that when the fuel used is burned in a special chamber, the required amount of heat is generated. After that, the water entering the system is heated. There are several varieties of such boilers, as a rule, these are wall and floor structures, as well as gas, electric and condenser ones. The choice of a particular device is made taking into account the features and specifics of the structure.
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