Routine maintenance work on gas boilers. Maintenance of gas boilers, burners and heating systems

Users of gas heating equipment often ask questions - why do I need ANNUAL TECHNICAL (SERVICE) MAINTENANCE of a gas boiler and what work is carried out during this service? In this article, we propose to deal with this and at the same time tell you how to avoid "hack-work" when carrying out such work.

But first, let's briefly touch on the legal side of the issue:

In accordance with Decree of the Government of the Russian Federation N549 dated 21.07.2008. "On the procedure for the supply of gas to meet the domestic needs of citizens" "... the user is obliged to ensure the proper technical condition of the gas equipment inside the house or apartment, in a timely manner to conclude an agreement on its maintenance and repair";

All manufacturers of gas heating equipment expressly indicate the obligation of regular maintenance. For example, according to the service policy of the Italian company BAXI: “... in order to maintain the efficient and safe operation of your boiler, it is necessary to maintain it annually by a specialized service center”, and the well-known German manufacturer of heating equipment VAILLANT notes in its instructions: “... a condition for long-term operation, reliable and safe operation, as well as a long service life, is the annual maintenance of the device by a certified specialist.

Why is such special attention paid to maintenance of gas heating equipment? To name at least four reasons:

firstly, the gas boiler is designed for daily operation, and during the heating period it is operated around the clock, with maximum load. Such intensive work invariably leads to increased wear of components and parts and, as a result, can lead to their breakdown. It is unlikely that someone will be pleased to be left without heating and hot water. To prevent the occurrence of such a situation, annual maintenance of the gas boiler is carried out. The main task of maintenance is to identify in advance the components and parts that require repair or replacement, and thereby minimize the risk of breakdown and shutdown of the gas boiler, especially during the heating season. Therefore, maintenance work is recommended to be carried out in the summer. Unfortunately, very few users service their boilers regularly before it's too late, at which point they have to pay for costly repairs or even a new boiler.
secondly, failure to perform or improper performance of maintenance adversely affects the operational safety of the boiler, which creates a real risk of injury or material damage due to fire, explosion, rupture of the heating system, etc. High-quality maintenance of gas equipment is a guarantee of its safe operation.
thirdly, competent maintenance ensures the most economical operation of the gas boiler and the entire heating system as a whole, which significantly saves your money. If you start noticing changes in the efficiency of your gas boiler, this is a good reason to schedule maintenance.
and the last, important argument in favor of the need for maintenance. All companies, manufacturers of gas boilers, provide a warranty period for equipment - two years (24 months), from the date of its commissioning. But it is important to know that if the client refuses to carry out maintenance after a year of operation, the warranty obligations for this gas equipment end.

Now about how to avoid "hack-work" when carrying out after-sales service.

In our opinion, each user must understand what work and in what order a service engineer must perform when servicing a gas boiler. Before signing a service contract for a specific model, it is worth finding out what is included in the list of maintenance work. Then this list is compared with the list of those works that are recommended by the manufacturer of heating equipment. Most often, the instruction manual supplied with the boiler contains all the necessary information regarding its maintenance. Moreover, the features of maintenance are described according to the frequency and types of work for various components and parts. That is, even a non-professional can understand what the minimum amount of maintenance should be carried out annually, and what work needs to be done or what parts and assemblies need to be changed and paid extra.

What does certified service maintenance consist of? Consider this using the example of a list of mandatory work during the annual maintenance of a wall-mounted gas boiler with a closed combustion chamber BAXI MAINFOUR 240 F:

visual inspection of the connections of the air supply / flue gas exhaust system;
draining the coolant from the heating circuit of the gas boiler, checking the membrane expansion tank and the preliminary pressure in it. If necessary, swap;
dismantling, decontamination, flue gas exhaust fan and Venturi device. Reverse mounting;
cleaning with a vacuum cleaner from contamination inside the combustion chamber;
checking, external cleaning, control of the integrity of the heat exchanger;
dismantling, cleaning, control of the gas burner. Reverse mounting;
dismantling, control, cleaning, adjustment of the location of the ignition and ionization electrode;
filling the heating circuit of the gas boiler with heat carrier, control of the working pressure in the heating system;
checking the tightness of all hydraulic connections of the heating circuit and the hot water preparation circuit;
checking the ignition and combustion process;
checking the inlet static and dynamic gas pressure;
checking, adjusting (if necessary) the maximum and minimum gas pressure on the burner;
checking the tightness of the components of the gas path by the instrumental method;
checking the operability of safety devices and security systems;
advice on the correct and safe operation of a gas boiler;

If the above listed works are included in the list and completed, then this means that the service maintenance of the gas boiler was performed by the specialists of the involved organization with really high quality.

It is not only forbidden, but also impossible to independently carry out the service of a gas boiler. To do this, you need to undergo special training, get permission to perform such work on your brand of boiler, have a professional tool and experience. Determining the technical condition of a gas boiler is impossible without special instruments: - gas analyzer, multimeter, leak detector, differential pressure gauge. All this should be at the service company specialist.

If you want complete confidence and peace of mind - conclude an agreement for the annual maintenance of a gas boiler with our company, the official service partner of BAXI, WOLF, VAILLANT, PROTHERM, ELECTROLUX, KENTATSU FURST, RÖDA.

Maintenance of gas boilers- the most common option in technical maintenance of boiler houses , checking the safety automation of such boiler houses is a requirement of Rostekhnadzor and is mandatory for their continuous operation. At the same time, it is required to check all gas equipment at gas boilers, including shut-off valves, a gas meter, low and high gas pressure sensors. Unfortunately, many emergencies are due to the fact that it is not carried out professionally and negligently.maintenance of automatic safety equipment for gas boilers and equipment.

The main types of work in the maintenance of boiler rooms are (these types of work are carried out at least once a month):

1	Checking the compliance of the boiler operation parameters with the current regime cards. External inspection of boiler equipment, if necessary, cleaning of boilers.
2	Checking and setting the operation parameters of the boiler room safety automation, including checking the technical condition of CO, CH4 sensors using test gas mixtures (the latter when servicing gas boilers)
3	Checking and setting up the alarm system, checking the condition of electrical panels. Broaching contacts if necessary
4	Checking the quality of fuel combustion, the composition of flue gases using a gas analyzer with the provision of printouts. If necessary, adjusting the combustion of the boilers by regulating the fuel supply and air supply
5	Checking the operability of the automatic control system for pumps and valve actuators
6	Checking the compliance of the parameters of the water treatment system with the specified technological parameters. Carrying out water tests for hardness and iron content.
7	Checking the technical condition of the boiler house pumps (network heating pumps, boiler circuit pumps, DHW pumps, pumping stations)
8	Checking the technical condition of heating and hot water heat exchangers, cleaning if necessary
9	Carrying out minor repairs of the boiler room (eliminating leaks, checking flange connections, cleaning mud collectors)
10	Elimination of current equipment malfunctions (removal of errors from burners, from the alarm and automation systems)

Also, once a year, we carry out, as agreed by the Customer, work to prepare the boiler house for the heating season. These works, as a rule, include cleaning and washing of boilers, chemical cleaning of heat exchangers, major maintenance of equipment.

Once every three years, it is mandatory to carry out routine adjustment of boilers and chemical water treatment systems. This type of work is designed to adjust the operation of the boiler house in such a way that the least amount of fuel is consumed at maximum efficiency. After carrying out these works, a report on regime and adjustment tests is created and regime cards are issued.

Before signing a contract for gas boiler maintenance or gas boiler service our engineers will come to you, check the condition of your equipment (if necessary, draw up a defective report), as well as agree on a schedule and the necessary scope of work.
The KEM company carries out repairs and maintenance regardless of the brand of installed equipment: Viessmann, Loos, Buderus, Ferroli, Baxi, Valliant, Dakon, Protherm.

Modern gas boilers are quite complex technological equipment. With proper care and proper handling, the gas boiler will serve for a long time without any failures. However, even the most expensive and functional equipment has its resource, after which various kinds of malfunctions begin to appear.

Knowing the main causes of problems and the procedure for their elimination, you can repair your gas boiler with your own hands. This is a very painstaking, responsible, but in most cases relatively simple work.

First of all, it is necessary to establish, due to which any malfunctions may occur in the operation of gas heating boilers. A number of different factors can lead to problems.

Electricity

Modern gas boilers are equipped with various automation equipment. These devices, in turn, are powered by electricity. And, despite the fact that it is already the 21st century and systems for the use of alternative energy sources are being actively developed all over the world, the problem of the stability of power grids remains relevant for many regions, especially for remote villages and all kinds of holiday villages.

A sudden shutdown or a strong surge of electricity is one of the main enemies of any modern gas boiler.

To avoid all the associated troubles, buy a quality stabilizer in advance. Do not spare the money to buy this device - cheap models are of little use, so it is better to immediately allocate funds for the purchase of a good stabilizer from a well-known manufacturer. Be sure that in the event of a breakdown of automation, you will spend much more money on its repair and replacement.

Water

At home, wall models of gas boilers are often used. Such devices are simultaneously responsible for both space heating and hot water preparation.

The design of wall-mounted boilers includes a flow heat exchanger. Low-quality hard water with various inclusions is the main enemy of the gas boiler heat exchanger. At the same time, under the influence of low-quality water, the heat exchanger can fail in just one season.

To prevent such damage, install special filters. The best option is a complete water purification system. With it, your boiler will work as long as possible, and using purified water is much safer for health.

Mounting errors

Any knowledgeable person will tell you: the installation and piping of gas heating equipment should only be carried out by qualified specialists.

Even the slightest errors at the stages of installation and connection of equipment can lead to irreversible consequences. For example, improperly performed piping in the case of a cast-iron gas boiler with a power of more than 50 kW will cause the unit to simply crack at low temperatures.

Therefore, if you are not an experienced gasman, entrust the installation of the boiler to professionals - this way you will save yourself from many problems in the future.

Weather

Adverse atmospheric phenomena can also lead to the appearance of many different problems. In frosty winters, people turn on heating almost at full capacity. This leads to a significant decrease in pressure in the gas pipeline system. As a result, boilers cannot realize their full potential.

You will not be able to solve this problem on your own - you still cannot explain to your neighbors that they only aggravate the situation by their actions. As a solution to the problem, you can install an additional boiler that runs on a different fuel.

Is it worth it to repair the boiler yourself?

A modern gas boiler is a complex and potentially dangerous system. The main danger of such units is the risk of a gas explosion in case of improper handling of the equipment or untimely elimination of various problems.

Various types of automation are responsible for maintaining the operation of the gas boiler at an optimal level. An inexperienced user is often unable to understand its device. Therefore, to fix serious problems, it is better to immediately invite specialists.

On your own, you can try to eliminate only visible damage and various contaminants that led to the failure of the pipe, chimney and other parts of the boiler.

There are a number of typical problems, which in most cases can be dealt with on your own. Problems will also be listed, in the event of which you can only protect yourself before the arrival of a specialist.

If there is a distinct smell of gas or smoke in the room, immediately turn off the boiler and leave the room, opening it for ventilation.

Call in a specialist immediately. Trying to solve the problem of a gas leak on your own without the right skills is extremely dangerous and unwise.

Flame sensor failure

If the combustion sensor or the gas supply pipe is broken, turn off the boiler, close all gas valves and allow the unit to cool completely.

After some time, return to the room to check it for the smell of gas. If everything is in order with the draft, try turning on the boiler again. If there is no traction, call a repairman immediately.

Boiler overheating

Overheating is one of the most common problems of modern gas boilers. The reason for this may be a malfunction of the automation equipment or a clogged heat exchanger.

It is impossible to cope with the repair of automation without the appropriate knowledge.

You can clean the heat exchanger with your own hands. The most common materials for the manufacture of heat exchangers are copper and stainless steel. There are usually no problems with cleaning them, but still be extremely careful.

To clean the heat exchanger, simply remove it and clean it thoroughly with a wire brush. In the case of a copper heat exchanger, it is better to replace the brush with a metal sponge used for washing dishes.

Boost fan malfunctions

The problematic place of fans are their bearings. If the fan of your boiler has stopped developing the set number of revolutions, try to eliminate the malfunction as soon as possible.

To do this, remove the back of the fan, remove the stator and grease the bearings. Machine oil is fine for lubrication, but if possible, it is better to use a higher quality carbon compound with heat-resistant properties for this.

Also, an interturn short circuit can lead to problems with the fan. Only a specialist can cope with the elimination of this malfunction. Hand over the stator for repair to replace the winding, or immediately replace the faulty unit with a new device.

Chimney problems

Often, excessive clogging of the coaxial chimney leads to the appearance of various malfunctions in the operation of a gas heating boiler.

Remove the chimney and carefully clean all of its components from soot. So you will not only return the previous level of efficiency of the unit, but also significantly increase the efficiency of the boiler.

If a gas boiler is installed in your house, at least once a year before the start of the heating season, it needs a basic technical inspection. One of the most annoying problems that arise when using equipment for a long time is scaling on the walls of the heat exchangers. As a result, the efficiency of the device gradually decreases, more gas is spent on heating the liquid, and with prolonged clogging, the boiler may even fail. It is not recommended to clean the device yourself, it is much better to conclude a contract with the service department for its annual maintenance.

In addition to carrying out all the necessary cleaning and adjustment measures, the service engineer will help ensure that the boiler is operated and connected correctly. At the same time, the user himself can perform some simple operations that allow you to check the working condition of the device.

The first thing to do before starting a gas heating system is visually assess the condition boiler and entire heating system. The equipment should be checked for cracks, chips or other damage. If problems are found, contact a specialist to fix them.

For boilers with an open combustion chamber, it is imperative check traction in the chimney. To do this, it is enough to bring a lit match to the viewing window, the movement of the flame of which will be an indicator of the presence of draft (similarly, when the exhaust pipe is removed, the draft in the ventilation system is checked). In addition, it should check coolant pressure in the heating system (it is displayed on the pressure gauge, and its standard value can be found in the instructions). If necessary, add liquid and make sure that the state of the heating system is stable, which will indicate its integrity.

As for the quality gas receipts, unfortunately, the customer cannot provide it on his own: the consumer cannot control the pressure and purity of gas in utility networks. Low pressure in the gas network can lead to spontaneous shutdown of the boiler. Sometimes, after turning it off, it cannot be ignited. In this case, it is necessary to call the service specialists who, by adjusting the gas valve, will eliminate the problem and start the equipment. When the valve is turned off more than necessary, the customer must carefully monitor the boiler, because if the gas pressure increases, you will need to call the master again for readjustment.

solid fuel boiler

Unlike autonomous counterparts, solid fuel boilers require more attention. In addition to the need for an external inspection of the device itself and the entire heating system, checking the draft in the chimney, cleaning the heat exchanger and pipes from scale, etc., they pay more attention to caring for the boiler. Don't Forget Regularly clean the camera from products remaining after combustion (contamination of the heating surface with soot significantly reduces the efficiency of the equipment). In addition to taking care of the cleanliness of the ash pan, one should add regular flue duct cleaning. The frequency of cleaning the combustion chamber and chimney directly depends on the quality of the fuel being burned.

Also maintenance of solid fuel boilers, the frequency of which is indicated in the product data sheet, involves checking the pressure of the coolant in the heating system, checking the performance of expansion tanks, testing emergency automation and safety valves, checking indirect heating boilers, circulation pumps and other equipment.

It is imperative to monitor the operation of the boiler to avoid overheating. The volume of air supplied must be controlled so that the flame does not exceed the limit temperature and the heating return temperature is correct. More advanced pyrolysis devices have two chambers A: gasification and combustion. The ash content of such systems is much lower than that of conventional designs. Adjusting the operation by changing the fan speed is easier and requires less attention.

Oil boilers

Inspection and service maintenance of the oil heating system must be carried out at least once a year. This will allow to maintain high efficiency and use the boiler in an economical mode (with low fuel consumption), as well as ensure reliable operation. In order for a liquid fuel appliance to work flawlessly, it is very important to apply fuel of the required type and quality(mostly separated).

The specifics of the operation of a liquid fuel boiler determines that during maintenance, in addition to the usual inspection and checking of the device and the heating system, they pay attention to the integrity of the fuel line, thorough cleaning of working surfaces from soot and setting fuel combustion parameters. Regularly clean the fuel filter, inspect and, if necessary, change the nozzles, periodically adjust and clean the burner of soot. The flame control photocell also needs to be cleaned, otherwise there is a risk of its false operation.

If a burner malfunction occurs, the warning light will come on and this problem can usually be solved by pressing the troubleshooting button. However burner failure should not be repaired more than three times in a row. Frequent pressing of the button may damage the ignition transformer. Pay attention also to the start of the burner after the fault has been eliminated. If pops are heard during ignition, you need to contact the specialists of the service center.

electric boiler

The specifics of using an electric heating device is much simpler than using boilers, where heating is organized by burning fuel. There is no need to worry about cleaning the combustion chamber and checking the draft in the chimney. The greatest attention when using an electrical device requires maintenance of thermoelectric heaters, which, like heat exchangers in other types of boilers, are contaminated due to scale formation. The latter not only reduces the efficiency of the equipment, but can also lead to a short circuit on the device case due to the destruction of the protective layer on the heating element. Therefore, the main tasks that service engineers face are the determination of wear and the replacement of heating elements, as well as the verification of emergency automation, electrical equipment and hydraulic elements.

Almost every individual building has gas-powered equipment. Blue fuel is one of the cheapest. That is why, when installing autonomous heating systems, the owners of private houses in the vast majority of cases prefer to install gas boilers. But at the same time, periodic maintenance of gas equipment in a private house is required.

Is a contract necessary or not?

Today we will look at issues related to this procedure. But before dwelling on the technical side of the matter, let's clarify whether it is necessary to have mandatory maintenance of gas equipment in a private house? Is it always required from "private traders" to conclude contracts for it?

There are opposite views on this matter. Someone considers it mandatory, others are of the opinion that the main thing here is the desire of the owner. Let's try to be clear. Decree of the Government of the Russian Federation No. 549, issued in 2008, states that the right of the resource supply organization (that is, gas workers) is to stop gas supply in the absence of such a document.

Here lies the source of the confusion. In this case, a valid contract is implied, that is, drawn up before the date indicated above and not invalidated according to the deadline. If there is a valid contract, the owner is not required to sign a new one. But if there is none, it must be concluded.

This must be done at least for security reasons. Gas equipment refers to equipment of an increased level of complexity. It should only be properly maintained or repaired by a person who is a professional in this field. Ordinary citizens are not able to carry out high-quality technical equipment in private homes without knowing all its methods and nuances.

What is checked during maintenance

This procedure includes a number of complex technological operations. What exactly will need to be checked when servicing gas equipment in a private house?

With the help of gas analyzers, the masters control the tightness of the line, not relying on their own sense of smell. The check is subject to checking the operability of the equipment, that is, its technical condition in all modes that are provided. They are interested in the degree of deterioration of all components and their suitability for subsequent operation. To do this, the equipment is subjected to complete or partial disassembly and inspected in order to identify signs of resource depletion.

You can check the readiness of protection systems by making them work under conditions that simulate various emergency situations.

Be on the lookout

All the available set of gas boilers differ not only in brand, appearance and set of parameters, but also in their design solutions. And therefore, for the maintenance of a particular model, the list may differ from another similar one.

That is why it makes no sense to give an exact list of operations. But it is necessary to know their approximate composition in order to monitor the conscientiousness of the actions of a specialist. The list of necessary operations is given in the documentation supplied with the unit.

Who is the contract for the maintenance of gas equipment of a private house?

This question is one of the most important. The best option would be to conclude it with the organization that supplies gas. In this case, all claims identified during the inspection of the system will be presented by its employees to their own colleagues. Suppliers usually have their own service departments.

Sometimes it is more convenient to conclude an agreement with the structure that works closely with the supplier of the boiler. This option is preferable for where the call of gas workers sometimes turns into a problem.

There are also companies that specialize in providing such services. In both this and the previous case, a number of important points should be clarified: does such a structure have certification not for maintenance of gas equipment in general, but for specific brands of products. You should also take an interest in the material base of the contractor.

What else is important

The presence of good specialists who can assemble and disassemble the unit and identify a malfunction is not enough. Sometimes it is impossible to do without complex and expensive equipment - it is impossible to perform part of the work on servicing gas equipment in a private house "on the spot".

For example, we can talk about cleaning the internal cavities of heat exchangers. If your device is under warranty, ask about the right to organize maintenance during this period. You should also be interested in the terms in which applications are completed and the warranty periods after repairs.

It would be useful to collect feedback from people who have experience of cooperation with this organization. And also important factors are the price of servicing gas equipment in a private house and the list of those services that are free. Before making a choice, it will be useful to compare the conditions with those adopted in other organizations.

Issue price

Unfortunately, within the framework of a separate article, we cannot provide the reader with detailed information regarding the specific prices of a particular supplier organization. As already mentioned, due to competition in the era of a market economy, the number of providers of such services is not one or two. And for each of them, the price list consists of a long list of items.

You can navigate this issue by comparing the prices of private suppliers with those that can be found on the website of the familiar to all of us and the most demanded Gazprom Gas Distribution JSC according to a single price list for the population. We repeat, we are not able to give the entire list of tariffs (23 sheets), the reader can easily find the relevant information by visiting the supplier's office or the corresponding Internet resource.

But for a general orientation, we will give standard prices for maintenance of in-house or in-house gas equipment. The exact amount contained in the contract will depend on the composition of the household equipment used in each particular case (gas stove, gas instantaneous water heaters, gas meter, gas tap, etc.). The cost of maintenance services is:

for the hob - 334.74 rubles;
for the oven - 203.56 rubles;
for a stove with two burners - 334.74 rubles, with three - 389.02 rubles, four - 443.31 rubles;
for a water heater - 890.06 rubles;
for a boiler with a power of up to 30 kW - 913.37 rubles, from 31 to 60 kW - 1079.87 rubles, from 61 to 140 kW - 1079.87 rubles.

Remember that, as in any area of service delivery, there is a phenomenon called unhealthy competition. It is customary among organizations to win over customers, taking advantage of the public's ignorance of technical issues and sometimes even resorting to intimidation. In the case of an existing non-expired document, it makes sense to call those with whom your gas equipment maintenance contract is currently concluded in a private house (the phone of the gas workers should always be at hand). You will inform them about the visit of competitors and new offers.

Sometimes representatives of the service department put forward more than persistent proposals to renew the contract due to the increased cost of servicing gas equipment in a private house. Often this phenomenon can be found in the rural outback, where the population is much less informed. You should not "be led" to such actions. As long as the validity of the document has not expired, any rates remain the same (and should not be confused with gas supply tariffs).

Sometimes you can hear about the substitution of the concepts of maintenance and repair. According to the contract, the owner's obligation is to pay only for maintenance (we are talking about the visit of the master and a small scale of work related to diagnostics, cleaning, flushing, etc.). If the issue of troubleshooting is raised, especially with the replacement of spare parts, then the procedure is subject to a separate payment.

You bought a gas boiler - what's next?

When purchasing a gas boiler, we keep in mind its advantages - hot water supply and reliable heating throughout the year. At the same time, gas boilers belong to complex household appliances that are related to two energy carriers at once - electricity and gas. And the latter, in the event of a malfunction of the gas pipeline or the boiler itself, can become a source of danger to people's lives and household property.

That is why the frequency of maintenance of gas equipment in a private house and diagnostics is extremely important. Regularly checking it for serviceability, you can identify emerging problems and not bring the condition of the equipment to a dangerous level.

Maintenance of a gas boiler - what is meant?

What is included in the concept of maintenance in order to ensure the health of the unit and the safety of its operation? The answer depends on the degree of complexity of this device and the set of functions performed. The boiler can serve only for heating or hot water supply, or both at the same time. It is also important to have certain additional functions and protection systems provided for by its design.

A complete list of the necessary checks and the frequency of their conduct can be found in the instructions for each specific boiler model. This document is your guide in the procedure for concluding a service contract with a contractor organization. You should be prepared for the fact that not the entire list of operations required by the instruction is available among the free mandatory procedures of the organization you have chosen. Part of the checks is considered an additional service and is provided only on the terms of an additional payment. You should try to insist that they be included in the main list of the treaty.

What is an approximate list of maintenance work for gas equipment in a private house?

In the most general case, the maintenance procedure for a wall-mounted gas boiler consists of:

Burner cleaning. Particular attention is paid to those details that determine the composition, direction and intensity of the flame. These include:
A retaining washer that regulates the position of the burner flame and the degree of its contact with the heat exchanger;
- a branch pipe through which gas is supplied to the burner (it is removed during inspection, disassembled and blown, then all its parts are cleaned); if necessary, filters that have failed are replaced with subsequent installation in place;
- and electrodes;
- ignition device;
- an air sensor, whose task is to regulate the parameters of the preparation of the gas-air mixture.
Cleaning the combustion chamber and removing dirt from all parts of the apparatus that are exposed to an open flame during operation.
Checking the integrity of the entire structure and the correctness of its operation. If necessary, the built-in hot water boiler is regulated.
Cleaning of internal channels through which gas is supplied and removed.
Checking the degree of contamination of the chimney. This is usually done for a separate price.
Built-in electronics checks.
Adjustments of all units of the units to be configured.

In addition, the composition of the gas in the combustion chamber is specified for the composition, completeness and amount of carbon monoxide emitted. The serviceability of the shutdown automation is also monitored by simulating an emergency. The most important of the safety devices is that which must be completely sealed. The supply gas pipeline throughout the entire section of the apartment or house (estate) must maintain its integrity, when inspecting it, special attention is paid to the junctions of the outer sections of the pipes.

No self-activity!

The above list at first glance does not contain anything particularly complicated. It may seem that such work is within the power of any homeowner. But this impression is very misleading. An inexperienced person may miss the smallest signs of non-compliance of the boiler, water supply and gas pipeline with strict requirements.

In the event of an unforeseen situation, not everyone is able to quickly respond in order to prevent irreparable consequences. At the same time, the specialist not only has the necessary qualifications and experience to carry out such work, but also bears personal responsibility for the quality of the check. This is confirmed by his signature in the documents for the boiler, which you must demand from him at the end of maintenance.