Like anyone else heating device, a gas boiler requires regular care and maintenance. If you do not carry out such an important procedure as cleaning the boiler, its performance will decrease and gas consumption will increase.

Cleaning gas boiler

Work carried out and its frequency

Before the start of the heating season and after it, you need to perform a number of procedures, including cleaning:

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• With injectors;
• gas filter;
• combustion chambers;
• chimney.

If some negative aspects arise, there is no need to postpone this matter and you need to clean the device immediately:

1. If the boiler is operating in standard mode, but the room temperature has become lower.
2. The unit began to consume large quantity gas and electric energy.
3. The smell of carbon monoxide began to be heard in the room.

A gas filter is used to clean the incoming gas from various contaminants and impurities. In this regard, it is especially important to clean it in a timely manner.

Often such situations arise as a result of a clogged boiler. In order to correctly identify the area of ​​contamination, you need to have special knowledge regarding the design of a gas boiler.

Let's take a closer look at how to clean each component of a gas boiler.

Cleaning the igniter, burners with nozzles

If the igniter functions well and without failures, then its flame resembles a cone with a blue tint. In case it yellow color, then this indicates only one thing - contamination of the burner.

In order to clean the igniter, you need to perform a series of sequential actions:

• it is necessary to shut off the gas supply to the boiler;
• unscrew the igniter;
• Using a metal brush, you need to clean the device thoroughly;
• Next you need to blow out the igniter and return it to its place.

A part such as a burner is very important element wall-mounted and floor-mounted gas boilers.

Set of brushes for cleaning the boiler

To clean the burner you need:

• close the gas supply valve and remove the device;
• Next, you need to carefully unscrew the nozzle;
• the nozzle cleaning process is carried out using a brush;
• to clean the burner itself, you need to use a brush, and its hole needs to be blown out with a handy pump;
• then return the nozzle and burner to their place.

Mechanical and chemical cleaning of boilers

Gas boilers can be cleaned in two ways: chemical and mechanical.

Before you start cleaning, you need to stock up on all the tools necessary for the job. You will need: scrapers, brushes, scrapers, screwdriver, gloves.

Chemical flushing of boilers is becoming more popular because... This process is quite simple and not time-consuming. To descale a gas boiler, you need to heat the reagent to the desired temperature.

Then use a special pump to pump it into the boiler system. The reagent will enter chemical reaction with scale and all kinds of deposits.

The following reagents can be used: adipic acid, sulfamic acid and gel.

Adipic acid must be diluted with water and poured into a cooled boiler using a pump. Then you need to release the pressure and wait until the acidic salts precipitate. It will need to be washed off with water.

Sulfamic acid is diluted with water in a separate container, and then pumped under pressure into a gas boiler. Next, you will need to wait a while, rinse the boiler and dry it.

Be careful! Any substance contains unsafe chemical solvents, therefore follow safety rules and clean the gas boiler using protective gloves.

The gel is not an acid, but it is well suited for descaling boilers. This substance allows you to clean the boiler carefully, it does not damage its walls.

Soot removal

Despite the fact that gas is a fairly clean fuel, soot accumulates in the combustion chamber and in the chimney over time. Soot is a combustion product organic compounds. If too much of it appears on the walls, the draft will disappear and the boiler will not be able to work productively. In this regard, it is necessary to periodically clean the combustion chamber, chimney and other elements of the boiler.

You can get rid of it using friable abrasives. If a small layer has formed on the walls of the boiler, you can deal with it with soda and a hard sponge. To clean the walls of the boiler you will need a brush, scraper and rags.

Having carried out all the work on cleaning the elements of a gas boiler, you can expect an increase in its efficiency.

Any equipment in a private home installed to provide comfortable conditions accommodation, needs regular care. These are measures to prevent contamination and a direct procedure for cleaning certain parts. Cleaning a gas boiler is the very process that it is better not to get involved in without certain skills and knowledge. Therefore, we suggest reading about what methods exist for cleaning boilers, as well as how to understand when it is necessary to clean them.

How to clean the heat exchanger?

The process of cleaning the heat exchanger depends not only on its design, but also on what kind of water is used in the system: unprepared or prepared - with special additives.

By design, the heat exchanger may well be one of several types:

• fire tube;
• bithermic;
• lamellar.

Plate ones are divided into several more types - secondary and primary for heating water.

Important! A fire tube heat exchanger is installed in floor-standing boilers, bithermic - in compact floor-standing or wall-mounted models.

Cleaning is carried out using the following methods:

• mechanical;
• chemical;
• electric discharge;
• hydrodynamic.

Important! Service gas equipment, including boilers, must be performed by specialists with the appropriate knowledge. If you do not have sufficient technical knowledge and skills, it is better to call a specialist for help.

How to clean the fire tube heat exchanger of a single-circuit boiler?

Cleaning floor-standing boilers with a fire tube heat exchanger is fundamentally different from a similar procedure for attachments. In this case, to carry out this procedure, there is no need to remove the heat exchanger, but only need to provide access to it.

To do this job, you will need the following tools:

• metal brush;
• open-end wrench;
• hand wire brush;
• screwdriver;
• brush made of nylon or natural bristles.

Important! The first thing you should do is turn off the gas supply valve. Then complete 3 stages of work - provide access to the heat exchanger, clean the parts, and reassemble the boiler. The assembly and disassembly steps depend on the specific model.

Cleaning a double-circuit boiler

For a boiler with a water heating circuit, it is mandatory to clean the secondary heat exchanger from internal scale. Moreover, it needs to be cleaned somewhat more often, because a whole stream of untreated water passes through it. Thus, mineral hardness salts actively deposit on its walls.

Important! The same applies to bithermal heat exchangers.

How to clean soot from a boiler at home? This work is carried out in several stages:

1. The first one is mechanical cleaning outer surface all parts and chimneys from accumulated soot.
2. The second stage is chemical, electric discharge or hydrodynamic flushing from scale.

Mechanical cleaning of plate heat exchangers

You can clean the boiler from soot without even removing the heat exchanger. To do this, you just need:

Important! Similar products are presented in stores in a fairly wide range; you can purchase Fauch and MAZBIT+ products. But you can also use that household chemicals, which is designed for cleaning ovens and grills.

Before disassembling the boiler:

1. Disconnect it from the gas, and disconnect the igniter from the electricity.
2. Drain the water from both circuits, as well as the expansion tank.
3. First remove the secondary heat exchanger, which is located just behind the boiler cover.
4. The primary one, also known as the main one, is somewhat more problematic to remove, because you will have to disassemble the combustion chamber itself.

How to clean surfaces from the inside?

Flushing inner surface fire tube, plate or bithermic heat exchanger is possible only with the help of special equipment:

• Pump high pressure, through which hydrodynamic flushing is performed. This device is used to remove small deposits.

Important! The advantages of this device are the speed of the procedure and the ability to clean the gas boiler without removing the heat exchanger.

• Booster, also known as an acid-resistant pump. Removes even the most stubborn scale. The advantage is that it eliminates scale that cannot be eliminated by other means.

Important! If you select the wrong reagents (neutralizers and acids), the life of the heat exchanger is reduced.

• Complex “Streamer” for electrical discharge cleaning. It is used to remove scale of any degree of strength. Advantages – does not affect the metal of the heat exchanger, provides high level cleaning.

Important! Disadvantage: lengthy and noisy procedure.

Of all the above methods at home, it is only possible chemical cleaning, because the factory booster can be replaced with a low-pressure pump. All other equipment is both expensive and voluminous, so such boiler cleaning can only be done service centers.

Chemical cleaning

If you have a booster, you can do the flushing yourself:

1. Booster can be crafted with my own hands– this is a 10 liter container with two hoses and the pump itself.
2. In order for the procedure to help eliminate scale, but not affect metal surface, choose the right acid.
3. As soon as you have treated with acid, be sure to rinse the heat exchanger with a neutralizer.

Important! If the boiler has been cleaned regularly and small deposits have formed on the pipes, then it is better to use citric acid. The concentration of the prepared solution is as follows: 5 liters of water per 200 g of acid.

If the scale is old or unprepared water with a high percentage of minerals is used, that is hard water, take more radical remedies - solutions based on orthophosphoric, hydrochloric or sulfuric acid.

Use the solution of hydrochloric acid Without corrosion retainers is not recommended because it will damage the equipment.

How often does the boiler need to be cleaned?

In all technical documents The boilers indicate how often they need to be cleaned:

• For contours closed type with the addition of reagents, they are also single-circuit boilers heating, cleaning does not need to be carried out frequently. It can be carried out once every 2-3 years.
• The secondary and bithermic heat exchanger must be cleaned every year, and if operating conditions are poor - twice a year.

What are the signs that indicate that a boiler needs to be cleaned?

Signs that your gas boiler needs cleaning urgently.

Air heating in a country house is now not popular in Russia. This method has become widespread in Canada and the USA. Steam This type of heating is practically not used in cottages. It is mainly used on industrial facilities. It is economically and technically justified if steam is involved in technological processes enterprises. Stove Heating with a stove is a well-known option. IN country houses stove heating is gradually giving way to more modern, efficient and easy-to-use options. It is impossible to heat a large cottage with a stove. In many homes, the stove is an element of interior design, and not a source of heating. Heating system country houses with liquid coolant Let's take a closer look at the most popular type of heating - water. Water heating systems, depending on the fuel used, are divided into the following classes: Systems operating on gas (main gas, liquefied gas) Electric heating (with electric boilers) Systems operating on solid fuel Systems operating on liquid fuel From the point of view of comfort for living, all designated heating options…

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How to clean a gas boiler from soot: step-by-step instruction And detailed video

In order for home heating to occur efficiently and uninterruptedly, all elements must be in excellent working condition. heating system.

The main heating device is a gas boiler. For it to work stably, you need to carry it out regularly. Maintenance. An important maintenance operation is cleaning the boiler from carbon deposits and soot. Let's talk in more detail about how to effectively clean the boiler.

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Causes and consequences of soot

Clogged chimney Carbon deposits in the boiler are a product of gas combustion. When exiting through the chimney, this mixture, which consists of organic compounds and carbon, adheres to the walls of the boiler and chimney.

Untimely cleaning of the boiler and chimney can lead to the following consequences:

• draft decreases, and as a result, carbon monoxide may begin to enter the home, and this, in turn, can cause severe damage to the health of household members;
• the accumulation of soot in the chimney can cause a fire, in other words, the level of fire safety is significantly reduced;
• the appearance of carbon deposits on the walls of the boiler significantly reduces the heat transfer to the heating elements;
• accumulated soot significantly reduces boiler performance, which leads to increased gas consumption.

These points once again confirm that regular cleaning boiler and chimney are simply necessary. Before cleaning a gas boiler from carbon deposits, first of all, you need to familiarize yourself with the rules for carrying out this type of work, and also have everything at hand necessary tools and materials.

Boiler cleaning tools

In order to efficiently clean gas equipment from soot and deposits, you must first of all acquire necessary set tool.

This kit should include:

Having required kit tools, you can proceed directly to cleaning the boiler and chimney.

Procedure

In order to carry out the correct and effective cleaning gas boiler from soot and soot, you must perform the following steps:

Specialist's note: In order to correctly reassemble the boiler, during disassembly it is necessary to carefully remember the location of all dismantled components and parts.

Thus, we have talked in great detail about how to properly clean a gas boiler and chimney from soot. We will be glad if you use our advice!

Watch the video in which an experienced user clearly shows how to clean a gas boiler (AOGV) from soot:

Cleaning a gas boiler allows it to be used as efficiently as possible throughout its entire service life. The article describes step-by-step the cleaning process before the start of the heating season using the example of a floor-mounted chimney boiler “Zhytomyr-3” with Eurosit-630 automation.

Cleaning of a household gas boiler before the start of the heating season must be carried out without fail. For boilers operating year-round, this procedure is carried out at least once a year. Gas combustion in equipment with partially clogged smoke exhaust channels occurs in wrong mode, which only aggravates the situation, further clogging the boiler with soot. The result is poisoning of residents carbon monoxide. By the way, automatic draft control can only work if the chimney is clogged, but not if the channels of the boiler itself are clogged. Therefore, you should not rely solely on automation and neglect cleaning.

It is important to know that gas-hazardous work must be carried out exclusively by representatives of specialized organizations that have the appropriate permits. this work is provided solely for informational purposes, but will allow the owner of the gas boiler to control the quality of the work performed gas service works

Preparing for work

To perform cleaning work on a gas boiler, you will need the following set of tools:

• open-end wrenches No. 8, 9, 10, 13 and 17;
• flathead screwdriver;
• brush;
• metal brush;
• brush.

Let's move on to cleaning the column

Turn off the gas supply valve to the boiler. Using wrench No. 10, unscrew the fastening screw under the boiler door and remove the door.

Disconnect the wire connecting the piezoelectric element and the ignition electrode.

Using key No. 10, unscrew the thermocouple clamp. Using wrench No. 9, unscrew the thermocouple from the valve.

Note: It is necessary to ensure that the thermocouple does not turn while unscrewing.

We note the depth of insertion of the nozzle into the main burner so as not to disturb the boiler settings.

Using wrench No. 17, unscrew the nut securing the copper tube from the burner to the valve. Using wrench No. 10, unscrew the ignition electrode from the pilot burner and the copper tube from the pilot burner and valve. Using a flat-head screwdriver, unscrew the two screws securing the pilot burner.

The gasket installed under the pilot burner has become unusable. It will need to be replaced.

Remove the nozzle from the pilot burner.

Tip: if the nozzle is stuck, you can lightly tap the burner with a key.

We unscrew the four screws securing the main burner to the boiler body and the screw securing the housing to be able to remove the main burner.

Lowering the main burner down, remove the copper tube from the valve.

Remove the main burner.

Remove the thermometer sleeve from the boiler body.

Using wrench No. 10, unscrew the four fastening screws top cover boiler and remove it and the insulation sheet underneath it.

Unscrew the two nuts securing the flue to the boiler body.

Remove the terminals from the draft sensor.

We remove the gas duct.

We remove the swirlers from the boiler heat exchanger. We clean them with a brush. If necessary, use a metal brush.

Clean the outer part of the heat exchanger with a metal brush. We clean the heat exchanger channels with a brush to the full depth. Cleaning bottom part heat exchanger with a brush. We also clean the gap between the boiler body and the floor. We clean the loose debris using a vacuum cleaner.

Using wrench No. 13, loosen the screw that fixes the depth of insertion of the nozzle into the main burner and remove it.

We clean the burner with a brush and a brush, and clean its holes with a vacuum cleaner. We clean the flue of dust from the outside and inside.

We clean the outer surface of the nozzle with a brush, then clean the nozzle holes with a needle or wire.

Note: The needle should be smaller in diameter than the nozzle hole. Even a slight increase in the diameter of the nozzle hole can affect the combustion mode.

We install the main burner in place.

We install a copper tube with a nozzle and attach its nut to the gas valve.

Only after this do we secure the nozzle to the burner at the mark using wrench No. 13.

Note: This sequence is necessary in order not to strip the threads in the valve body.

Finally tighten the nut of the copper tube with wrench No. 17.

Clean the pilot burner with a metal brush.

This is how the thermocouple should be installed in the pilot burner (the tip of the thermocouple opposite the flame).

We install the pilot burner on a new gasket.

Before installing the nozzle into the pilot burner, it must be slightly rubbed against the tip of the copper tube for better sealing. The nozzle should also be cleaned or purged.

We connect the copper tube to the pilot burner and to the valve using a number 10 wrench.

The rest of the boiler parts are assembled in reverse order. When connecting, the ignition electrode should not be clamped with a key; it is enough to do it by hand, since it is made of ceramic and can easily crack.

We carry out control washing of all compounds. Check the tightness of the connection copper tubes access to the main and pilot burners will only be possible when the boiler is turned on.

The result of the work done

This boiler is cleaned regularly every year before heating season. No critical contamination was found during cleaning, but it is clear that dirt accumulates throughout the year. The need for such a procedure is obvious. After cleaning, the boiler ignites easily and gains temperature well.

P.S. Photographs of the boiler show traces of burnt paint in the area of ​​the inspection window. This is a clear sign of insufficient draft or contamination of the boiler channels. In this case, the problem was fixed long ago, but traces, unfortunately, remain.

An indispensable attribute of any heating system is a boiler, which acts as a heat generator for heating the home.

Modern market heating equipment saturated with a very wide range of boiler units various types. But they occupy a special place in this assortment, which are becoming more and more popular every day.

This trend is due to the fact that units of this type are very effective and economical heating devices country house and even apartments. In order for a gas boiler to function smoothly and stably, it is necessary to properly care for it.

One type of such maintenance is other pollution. Let's talk in more detail about why to clean a gas unit, as well as in what ways this can be done.

How often should you clean

The need for cleaning arises when the following negative aspects are identified in the operation of the AOGV boiler:

As a rule, the causes of such failures are clogging of the boiler. In order to understand in which places pollution accumulates, you need to know.

Cleanable nodes

This type of equipment contains the following components that need to be cleaned periodically:

• igniter;
• burner with nozzles;
• gas filter;
• heat exchanger;
• firebox;
• chimney.

It is worth noting that cleaning each component of a gas boiler has its own specifics, which we will dwell on in more detail.

Igniter

When the igniter is functioning normally, its flame should look like a cone with a blue tint. If the flame turns yellowish, this means that the burner is dirty.

The cleaning procedure occurs in the following sequence:

• shut off the gas supply to the boiler;
• unscrew the igniter;
• Clean thoroughly using a wire brush;
• perform purging;
• Reinstall the cleaned igniter.

Burner with nozzles

This part is the main one in the design of wall-mounted and floor-standing gas boilers, since it is intended directly for supplying fuel.

The sequence for cleaning the burner with nozzles is as follows:

• the gas supply valve closes;
• the burner is removed from its installation location;
• the location of the nozzle is noted, and then it is carefully unscrewed;
• You need to carefully clean the nozzle with a brush;
• the burner is cleaned with a brush, and its hole is purged using available pumping equipment;
• the nozzle is inserted into the burner according to the mark;
• the burner is installed in place.

Expert advice: The burner with nozzles should be cleaned once a year, preferably before the heating season.

Gas filter

This device is designed to purify incoming gas from various types of contaminants and impurities.

Therefore, it is very important to regularly clean the filter from accumulated clogging.

Heat exchanger

It is worth knowing that the main purpose of the heat exchanger double-circuit boiler is how much water will be heated and at what speed.

It is also necessary to understand that this element of the boiler unit can become clogged both inside and outside.

The outer part of the heat exchanger becomes contaminated with soot, which negatively affects its functioning. You can clean this boiler unit from soot mechanically, in other words, cleaning is done with your own hands.

To do this you will need the following set of tools:

• scrapers;
• metal brush;
• various shapes of brushes;
• power tool with cleaning attachments.

The cleaning procedure is as follows:

• gas supply and power supply from the boiler is turned off;
• the heat exchanger is carefully removed;
• cleaning is carried out using convenient tools;
• the device is installed again in its place.

Important point: Try to use a tool that does not have sharp edges for cleaning. Otherwise, you may cause damage to the heat exchanger, which may cause corrosion of the product in the future.

As a result, it falls throughput heat exchanger, which generally affects the functioning of the entire gas boiler. The best way to clean the inside is with chemicals.

Among the reagents that are used to clean the internal walls, the following products can be distinguished:

• adipic acid;
• sulfamic acid solution;
• special gel.

Specialist's note: the choice of reagent for flushing should depend only on the degree of contamination of the heat exchanger.

For full spectrum When cleaning the internal walls from scale, special washing equipment called a booster is used.

The booster consists of the following elements:

• circulation pump;
• reagent container;
• electric heater.

The principle of cleaning the heat exchanger using a flushing device such as a booster is as follows:

• to improve cleaning properties, the reagent is heated in a container;
• Using a pump, the solution is supplied under pressure directly to the heat exchanger.

As a result of circulation chemical agent, the scale lags behind the inner walls and comes out along with the waste solution.

Experts advise: Using a booster, you can clean not only the circuit of hot water boilers, but also the pipes of the entire heating system.

To the question of how often to clean the heat exchanger, we can answer that cleaning is carried out as it gets dirty, but not less than once a year.

You can learn more about calculating boiler power in this article:

Firebox and chimney

Although gas is clean look fuel, but over time, soot still accumulates on the walls of the firebox and in the chimney. The accumulation of this combustion product interferes with the normal functioning of the boiler, as draft is lost.

Watch the video, which shows in detail how to properly clean a gas boiler at home: