home · Lighting · How to clean soot from aogv. Cleaning a solid fuel boiler from soot, tar, ash and tar. How often and what parts need to be cleaned

How to clean soot from aogv. Cleaning a solid fuel boiler from soot, tar, ash and tar. How often and what parts need to be cleaned

Modern water contains a large number of harmful chemically active substances, which contributes to the rapid deposition of scale on various heating elements. Scale is the first enemy of such important units as, for example, a gas boiler. The heat exchanger located inside the boiler will be the first to suffer. Consequence: expensive repairs or the need to purchase a new element.

It is possible to prevent such consequences. It is enough to clean the heat exchanger in a timely manner, and this procedure It’s quite possible to do it on your own.

What is a heat exchanger?

The heat exchanger is an important component gas boiler. Its main function is to transfer heat from a heated element to a secondary one.

There are several types of heat exchangers:

  • Combined or bithermal heat exchangers. In many modern double-circuit boilers For heating, bithermic heat exchangers are installed, which combine two heat exchangers in one design: for heating and for hot water supply (DHW).

A bithermal heat exchanger is also called a dual heat exchanger. The section shows that structurally it represents a “pipe within a pipe.”

By inner pipe water flows from the hot water supply system, along the outside -
heating system coolant

Single-circuit or double-circuit boiler - is there a difference?

Varieties of boilers do not in any way affect the time period after which it is necessary to flush the heat exchanger. It is much more important which liquid () circulates in the heating system and which is supplied for hot water supply.

Using process water, which has undergone standard cleaning, the boiler can be flushed no more than once every four years. This removes a layer of scale (which still forms) and deposits that have more complex structure. If you do not filter water before pouring it into the system, but use ordinary water from a centralized water supply, then flushing should occur more often, at least once every two years. This is due high content chlorine in the liquid, which upon contact with heating element settles in the form of scale.

Some users prefer to use antifreeze as a coolant. This liquid is of better quality: it does not freeze even at low temperatures, gives off heat more slowly, but heats up quickly. Unfortunately, antifreeze is poisonous, and breaking down into components, leads to damage metal structures. The heat exchanger through which antifreeze circulates should be cleaned at least once every 1.5-2 years.

Therefore, both single-circuit and double-circuit boilers require timely cleaning of the heat exchanger, the intervals between which are the same in all systems.

In order to clean the bithermal heat exchanger less often, it is necessary to take care not only of the quality of the coolant in the heating circuit, but also of the quality of the water in the DHW system. The water should be pre-purified and filtered. You should also take into account the fact that the process of scale deposition begins at a temperature of 70°C, its rate increases by 2 times with every 10°C increase in temperature. In this case, the process progresses, since the growing layer of calcium impairs heat transfer and the temperature of the heat exchange wall increases.

Basic cleaning methods

Cleaning the heat exchanger can be done in several ways:

  • Mechanical. The heat exchanger is a system of small diameter pipes, which can be cleaned with a small brush and cable.
  • Using chemically active substances. Such reagents should be selected very carefully; too strong preparations can lead to damage to internal surfaces and leaks.
  • By supplying water under high pressure. Before this procedure, it is best to heat the liquid to 70-80°C.

If you clean the heat exchanger yourself, then the third option may require serious costs, since you will need an installation capable of providing high water pressure. When cleaning with your own hands, you should use a mechanical or chemical method.

The sequence of disassembling the boiler and removing the heat exchanger

It should be remembered that perform this procedure in the midst of heating season do not do it. Because there is a certain time frame during which it is necessary to remove the heat exchanger, wash it and install it in place. During this time, the heating system will not maintain constant temperature, and when severe frosts this is fraught with serious consequences or a sharp cooling of the house, which will lead to additional costs for heating it.

Sequence for cleaning a gas boiler:

  1. Remove the burner device. It is immediately necessary not only to remove the part, but also to clean it. For proper cleaning of the burner, it is most convenient to use a toothbrush. This personal hygiene item will allow you to reach hard-to-reach places.
  2. Next, the supply wires are disconnected from the gas valve and the thermocouple is removed from the combustion chamber. To remove the thermocouple, you first need to remove the capillary tube connecting it to the gas valve.
  3. Disconnect the pipes through which gas is supplied to the device. Now all that remains is to unscrew the 4 bolts (some models use nuts). After undocking, the entire assembly can be taken out and started cleaning.

The main element is the heat exchanger. To get to it, you need to remove the protective cover of the device and undock 2 sensors: draft and chimney. Next to the sensors, you need to remove the insulation. When using the boiler for a long time, it is best to replace the insulation with a new one. Its poor quality condition can cause energy losses during operation.

After the above operations, the casing is dismantled and the heat exchanger remains open. Only turbulators interfere with its removal. This is a device that slows down the movement of exhaust gases. The temperature of the gases can be too high and at the appropriate speed such exhaust can damage the internal surfaces of the heat exchanger.

Disassembly and washing wall-mounted boiler BAXI Mainfour 24.

Cleaning the heat exchanger mechanically

Having removed the heat exchanger, you can begin cleaning it. mechanically. Of course, you can choose the second option (using chemically active substances), but it will be described below.

Having gone through the removal process step by step and taking the heat exchanger out, users are presented with an unattractive picture: a large amount of deposits and soot both inside the pipes and between the cooling plates. The mechanical cleaning method involves the use of a metal cable with a brush at the end, as well as various scrapers and blades. Using this tool, harmful deposits are removed from both internal and external surfaces.

To make the process of removing dirt faster, you can “soak” the device in water with the addition of detergents. Then plaque or scale will be removed much easier and without effort. When using a cable, it must be slowly pushed into the device, while turning it clockwise.

After inner part will be cleaned, you need to rinse the heat exchanger using a hose that can be connected to a centralized water supply. It doesn’t require a lot of pressure; even an ordinary stream of water is enough to wash away dirt, plaque and other deposits.

Remove contamination from outer surface, especially between the blades, should be done carefully, as this can lead to damage to the heat exchanger and disruption of its operation.

What is a booster and how to mount it yourself

When cleaning with chemically active substances, you do not need to put in a lot of effort, but you should purchase or make your own solution that will remove harmful deposits. When using chemicals, booster.

A booster is a device that creates a certain pressure in the heat exchanger and allows cleaning liquid to be pumped through it. Such a device can be purchased at a specialty store for a substantial amount or you can make it yourself.

Booster installation sequence:

  • Purchase 2 metal plates, no more than 2.5 mm thick. Attach them to the heat exchanger and drill holes opposite the terminals of the device.
  • Purchase 4 American-type water taps. For better sealing, you should also buy washers for them.
  • The taps must be installed in the holes on the plates located below and, using 4 bolts, connect the plates to each other.
  • Now you need to find a suitable container. It could be a canister of durable plastic or the same bottle. The main condition is a perfectly clean surface inside.
  • An adapter is mounted at the bottom of the canister, to which the hose will be connected in the future. The adapter must have sufficient tightness.

If desired, and if you have an extra tap, you can install it on the adapter, but you can flush the heat exchanger without it.

Homemade booster option with circulation pump presented in the video.

Another option is using a circulation pump.

How to clean a heat exchanger using a booster

This procedure requires skill and compliance with certain safety rules:

  • All system connections must be as tight as possible to avoid contact of chemically active substances with the skin or eyes.
  • The washing solution must be prepared only while wearing protective equipment (gloves and, if required, goggles).

Now you can start cleaning the heat exchanger using a booster. You will need a pump for this. low power, for example, from washing machine or heating systems, and a device, the manufacturing sequence of which was indicated above. The pump should be connected to a container, into which at least 6 liters of water should then be poured. Before this, the water is heated to a temperature of at least 50 degrees.

After preparatory stage, hoses from the tank are connected to the inlet and outlet of the heat exchanger and the pump is started. It is enough to circulate the liquid through the system once and turn off the pump. Now you need to carry out a thorough inspection to make sure that the system is highly tight. If no leaks or drops of water are noticed anywhere, then the cleaning can be carried out fully.

Add to the system special solution and start the pump for at least 40 minutes. It should be remembered that both the main and secondary heat exchangers require thorough washing. Then the total time should be at least 1 hour 20 minutes (40 minutes for each lap).

After the cleaning agent has been circulated through the system for a specified time, the booster can be turned off and a hose from a centralized water supply tap can be connected to the heat exchanger terminals. 3-5 minutes are enough, and the device can be reinstalled on the gas boiler.

The video shows how to flush the primary and secondary heat exchanger Ariston boiler using a booster.

Washing using booster and hydrochloric acid.

Heat exchanger cleaning products

For this procedure, it is best to use products that are sold in household or other specialized stores. But, to save money, such a composition can be made independently.

The first thing that is used most often is a solution of 10% sulfuric acid. A similar product can be used, but this should be done extremely carefully, since sulfuric acid is very active and can quickly burn through the thin walls of the heat exchanger. Result: the need to contact a specialist who can solder the hole or purchase a new device. Both the first and second options will cost the user a substantial amount.

You can resort to a more gentle and traditional method: dissolve 20 g of citric acid in 1 liter of water. If the result is not noticeable immediately, the concentration should be increased slightly. Lemon acid effectively removes scale and dirt, but at the same time has a negative effect on areas damaged by rust.

The video below shows how to disassemble the Baxi Ecofour 24F boiler and clean the heat exchanger with citric acid.

Therefore, it is best to spend a little more money, but clean the heat exchanger with products specially created for this purpose. For example, a preparation for cleaning gas boilers Detex. This composition has never caused any damage inner surface heat exchanger and has earned a large number positive feedback from users.

Advantages of using DETEX liquid:

  • Removing a layer of scale, biological deposits, oxides, salts.
  • The composition of the liquid does not destroy the surface of the heat exchanger.
  • Contains surfactants, antifoaming and corrosion inhibitor additives.

Summing up

Cleaning the heat exchanger is important and mandatory procedure, which must be carried out at certain time intervals. Only then will the service life of the gas boiler be long and its operation reliable. Before cleaning, you must carefully study the information provided above and carefully follow the tips and recommendations.

The main heat generator in the house is the boiler, which is considered the main link in the heating system. On modern market There is a wide range of boilers of various types. The most popular of them are gas units, characterized by their efficiency, compactness and design. They are perfect for heating both private and country house.

One of the advantages of a gas boiler is the fact that it does not require a boiler room. On the other hand, cleaning a boiler located in the house is not very convenient, since it is a very dirty job.

In order to ensure the smooth operation of a gas boiler, it is important to know the basic rules for caring for it. To understand how to clean a gas boiler at home, it is important to follow a clear algorithm of actions. There are floor-mounted and wall-mounted boilers, the cleaning of which is slightly different.

When cleaning is necessary

If the operation of the gas boiler is characterized by a decrease temperature regime, and gas consumption has increased significantly, it is worth starting to clean the boiler. Sometimes you can smell it carbon monoxide. To perform high-quality maintenance of the unit, it is important to familiarize yourself with the structure of the gas boiler.

If the boiler is not cleaned on time, then deposits that appear on the heat exchanger during operation can create a situation where the internal parts of the heating element cannot function fully.

Parts to be cleaned

The device contains components that need to be cleaned regularly. The main components are the igniter, gas filter, burner with nozzles, firebox, heat exchanger and chimney.

When starting to clean nodes, you should adhere to an algorithm of actions that must be followed in strict sequence. For example, it would be unwise to clean the burners, put them back in place, and then start cleaning the chimney ducts.

Igniter

At normal operation The igniter flame burns with a cone-shaped blue flame. When the fire turns orange or yellow, the burner is dirty. If you do not plan to clean the entire boiler, then you can clean only this one.

By cleaning the igniter, you can restore the boiler’s functionality, but it will not increase its efficiency.

Burners and jets

Although burners and jets can be cleaned separately, it is still better to perform a comprehensive cleaning.

It is advisable to carry out the work at least once a year before starting the boiler.

It is worth noting that this detail is considered the main one in the operation of both wall-mounted and floor-standing boilers. Its main function is to supply fuel.

Chimney ducts

Gas combustion products, passing through the chimney channels, give them their heat. If there is soot inside the channel, then it acts as a heat insulator, and therefore the thicker its layer, the more gas needs to be spent to heat the coolant to a given temperature. Awareness of this will not allow the street to be heated instead of the house, and will encourage you to carry out cleaning.

The amount of soot formed in the boiler is affected not only by how well it operates, but also by the quality of the supplied gas - it may be poorly purified or there may be too many added impurities. In some areas, instead of pure gas, a mixture containing up to 30% air is supplied.

Cleaning the floor-standing boiler

The work must be carried out by specialists, but following step by step instructions, you can clean the floor-standing gas boiler yourself. When cleaning the boiler from soot, you should use the following tools:

  • Ershik.
  • Open-end wrenches No. 10, 8, 17, 13, 9.
  • A screwdriver.
  • A regular brush and a metal brush.

Step-by-step instruction

Before you begin cleaning, you need to turn off the gas supply.

  • Under the boiler door, you need to unscrew the fastening screw using a No. 10 key, removing the door.

  • The wire that connects the piezoelectric element and the ignition electrode is carefully disconnected.
  • Using key No. 10, you need to unscrew the thermocouple clamp.
  • The thermocouple is unscrewed from the valve using wrench No. 9. During operation, you need to make sure that the thermocouple does not rotate.
  • Now you should note the depth of the nozzle entry into the burner. This is done to ensure that the boiler settings are not damaged.
  • Armed with wrench No. 17, you need to unscrew the nut securing the copper pipe from the burner to the valve.

  • Unscrew the ignition electrode from the pilot burner using key No. 10. A copper tube unscrew from the valve and burner. The fastening screws located near the pilot burner should be unscrewed with a screwdriver. Most often, the gasket located under the burner needs to be replaced. In a situation where the nozzle does not budge, you can carefully tap it with a key.
  • Now you need to unscrew the screws that secure the burner to the base of the boiler and the screw itself that secures the structure in order to remove the burner.
  • We pull the copper tube out of the valve, lowering the burner down.
  • Now you can pull out the burner.
  • We also remove the thermometer sleeve from the boiler.

  • Armed with wrench No. 10, you need to unscrew the 4 screws that secure top cover boiler and insulation sheet. It is subsequently removed along with the insulating sheet underneath.
  • The two nuts that secure the flue to the structure of the unit are unscrewed and the terminals are removed from the draft sensor, removing the flue itself.

  • The swirlers must be removed from the heat exchanger by cleaning them with a brush. If necessary, it is advisable to use a metal brush. The outer surface of the part is also cleaned with a brush.
  • The heat exchanger channels can be cleaned to their full depth with a brush.

  • Clean the gap between the floor surface and the unit. You can use a vacuum cleaner, which will do an excellent job of removing loose debris.
  • Slightly loosening the screw that fixes the depth of insertion of the nozzle into the burner, pull it out. In this case, you will need key No. 13. The burner can be cleaned with a brush or brush. For hard-to-reach places, use a vacuum cleaner.
  • It is necessary to clean the flue on both sides.

  • The nozzle should be cleaned with a thin needle or wire. It is important to use a needle that has a smaller diameter than the nozzle opening. Otherwise, the combustion mode may be disrupted.
  • The main burner is sent to its place.
  • Installed in place copper pipe and the nozzle, having previously attached the nut to the valve. Only now can you begin to attach the nozzle to the burner using wrench No. 13 according to the existing mark. Consistency is necessary to prevent thread failure in the valve body. The nut on the copper tube can be completely tightened.

  • The pilot burner, cleaned with a metal brush, is installed on a new gasket.
  • The nozzle is purged and cleared of clogging.
  • Using a number 10 wrench, you need to connect the copper tube to the burner and valve.
  • Continue to assemble the parts in reverse order. It is worth recalling that it is not advisable to press the ignition electrode tightly during connection. Otherwise, the part may easily crack.
  • All compounds are washed. The test is performed only when the device is turned on.

As a result of the work done, the boiler starts easily and can quickly reach the desired temperature.

Removing blockage from a mounted boiler

The principle of cleaning a mounted boiler from soot is not very different from the method described above. As for the double-circuit boiler, it also has a heat exchanger, the cleaning of which must also be taken with great responsibility.

You can clean the heat exchanger using a booster as follows:

  • To increase the cleaning ability of the reagent, it is heated in a special tank.
  • The reagent is supplied under pressure into the pipes.
  • During the circulation of the chemical, the scale lags behind the walls and is poured out with the composition.
  • A special solution neutralizes the acidic composition upon completion of the work.

An acidic solution can cope with even the most stubborn stains. As a result throughput and thermal conductivity will increase.

Using hydrodynamic flushing

This method does not require disassembling the equipment. During the cleaning process, water is pumped in and pressure is built up. The rapid movement of water breaks down deposits and carries them out. Sometimes, you may not notice critical pressure indicators, which can cause a pipe rupture. This method is best left to specialists.

As a result of the work done, the boiler starts easily and can quickly reach the desired temperature.

Video

In this video you can see how to clean a floor-standing gas boiler:

Watch a video on how to determine when it's time to flush your heat exchanger. They will also show and tell you how washing with chemical reagents is carried out:

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 devices for heating a country house or even an apartment. 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. This boiler unit can be cleaned of 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.

The cause of contamination of the inside of the device may be poor-quality coolant, due to which scale settles on the walls. (By the way, you can read about cleaning a heating boiler from scale).

As a result, the throughput of the heat exchanger decreases, 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 the circulation of the chemical, the scale lags behind the internal 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:

Every owner own home with your heating system, you must treat it carefully. Otherwise, over time, heating efficiency will decrease and fuel consumption will increase significantly. This especially applies to boilers that run on solid fuel. When such fuel burns, a deposit will eventually form on the walls of the boiler. But few people know how to clean the boiler from tar and other deposits.

How to clean soot from a boiler: cleaning acids

A large number of cleaning methods have been developed. However, you need to take into account that the methods that will be written below are not compatible.

For a successful cleaning process we need:

  • Scraper;
  • Scraper;
  • Screwdrivers;
  • Fabric gloves;
  • And corresponding electrical appliances.


Before any type of cleaning, it is necessary to turn off the boiler and remove the combustion source. After this, you need to turn off the gas supply valve and all heating shut-off valves, then wait until the boiler cools down completely.

Chemical cleaning is popular because of the ease of the process. To carry out such cleaning, the reagent is heated to the required temperature, and then, using a special pump, enters the boiler system and reacts with plaque.

The following acids are used for cleaning:

  • Adipic acid;
  • Sulfamic acid;
  • Helium.

Adipic acid must be diluted with water and very carefully poured into a cooled boiler using a pump. The gas affects the carbonates, they are converted into acid salts and then dissolved. After this, you need to release the pressure and wait for the salts to precipitate; such sediment is very easily washed off with running water.

Sulfamic acid also needs to be diluted with water, only in a separate container and pumped under pressure into a cooled boiler. Then we wait a while and rinse the boiler under high water pressure.

The gel is not an acid, but it is also capable of dissolving oil deposits and also effectively separates deposits from metal. It can clean the boiler carefully and gently and without causing any harm to the walls.

The most famous remedy for soot accumulation in the chimney is rock salt. It is added to the combustion chamber when burning fuel. But this option with the addition can only be carried out as a preventive measure, nothing more. It is impossible to completely clean the chimney of soot with this addition option.

A product that is more effective for clearing soot buildup in exhaust pipe– These are potato peelings. The amount required for cleaning is determined by the dimensions of the heating boiler. On average, cleaning takes a bucket of cleaning. They are poured into the working chamber of the boiler during fuel combustion. The starch, which is released along with the steam, softens the soot and it begins to fly out of the chimney. After this procedure, you need to clean the boiler. Prevention is often carried out in this way before mechanical cleaning, and after this it is easier to perform.

There is also a cleaning method using aspen firewood. A couple of armfuls of such firewood are burned in a cauldron.

But we must say right away that this is very dangerous. This method heats the chimney to a very high temperature, and with such heating, the soot begins to burn out. Before using this method, you need to make sure that your pipe can withstand such high temperatures.

And besides this, you need to be sure that the carbon deposits on the pipe are not thick, otherwise, when the soot is heated, the pipe may burst.

It is not so difficult to properly clean or wash the boiler from tar, resin or carbon deposits with your own hands. Cleaning depends on what type of boiler you have. He can be solid fuel type and work on pellet wood, it can be gas or a pyrolysis type installation, each has its own method. For example, for wood-burning boilers Buderus, where tar accumulates, a powder cleaner is perfect. You can learn how to properly clean from the video.

An incorrectly selected product may cause a malfunction. Don’t be surprised later why the boiler clogs. It is the wrong set of tools that will affect the fact that the boiler may leak.

Cleaning the boiler from tar with chemicals

Industries produce a huge number of products that are designed to clean chimneys. Such products come in powders, liquid form and briquettes. They light up and do not cause any harm to human health. They are added to the firebox during fuel combustion; such substances destroy deposits on the walls of the pipe and soot falls to the bottom.


The most popular such means are fire chemical substances and fire fighting chemicals.

A special dry mixture is placed in the combustion chamber with wood. The amount of addition of such a product should not exceed 200 grams per ton of fuel.

When choosing a means of cleaning a small layer of soot, pay attention to chemical agent Czech manufacturers: Kominiček. This product makes it possible to burn soot when not high temperatures. The most popular remedy is: Log - chimney sweep. It can be used both for cleaning solid fuel boilers and all other combustible boilers. It is necessary to use it as carbon deposits accumulate. For example: for fireplaces that are lit twice a week, this product will last for half a year. But for boilers you need one log every two months. For optimal cleaning In large boilers or fireplaces, you can burn 2 logs of this product.

Powder for cleaning wood boilers

Nowadays use heating systems, which run on solid fuel, is very important. The disadvantage of using such boilers is the accumulation and deposition of soot in the heating system itself and the chimney.

The accumulation of soot not only impairs the draft of the unit, but also clearly reduces the efficiency of the boiler. To avoid this problem, it is necessary to regularly clean the chimney and the boiler itself. It is difficult to do such cleaning regularly, since it is a very labor-intensive process, and the fee for providing chimney sweep services is very high. And to solve this problem, special cleaning products were invented quite a long time ago. The product in powder form contains components that can react with soot when the product burns. This means that the chemical must be added when the fuel burns. The soot, after undergoing the reaction of the product, is gradually destroyed in the chimney and the boiler itself is cleaned. After exposure to the product on the soot, it becomes brittle and begins to lag behind the metal walls and flows into the condensate drainage holes and is then removed.


This remedy should be regularly added to the burning cauldron in the recommended dose. The result of such use is not only a cleaned boiler and chimney, but also savings solid fuel. One more the positive side the use of such a product is the efficiency of heating.

With the help of the powder, cleaning the chimney has become much easier for all owners of solid fuel-burning units. It completely cleans the boiler of soot in the shortest possible time and without aids, for which expenses had to be made. One rule for using such a product is to use it only for boilers that run on coal or wood.

Cleaning the Buderus boiler (video)

In conclusion, I would like to say that it is better to give preference to environmentally friendly and absolutely safe for health and environment means. Using all the methods listed in our article will make it possible to maintain your boiler without soot deposits and saving the owner money on fuel. Which method is right for you needs to be decided based on the type of boiler.

Cleaning soot from heating equipment at home is necessary to extend its service life and in accordance with the requirements fire safety. The fact is that soot particles can ignite from random sparks, leading to a fire, and their accumulation prevents the smoke from fully escaping.

Boiler cleaning

When the chimney becomes dirty, they usually trigger automatic systems controls notifying residents about problems with smoke removal and the need to clean the system. This is not provided inside the boiler, and you must monitor its contamination yourself so that poisoning from combustion products does not occur and the device continues to function normally.

Before cleaning the boiler, you must turn off the gas and power supply, wait until the boiler has completely cooled down, and then carefully disassemble it. Cleaning can be carried out in two ways - chemical and mechanical.


Chemical cleaning

The first option is less dusty and faster. Sulfamic and adipic acids, as well as special gels, are used. But chemicals corrode not only the soot itself, but also the metal of the boiler. Reduce it harmful effects You can dilute cleaning products, but you won’t be able to make them completely safe for metal. This is how it is recommended to clean only small stains that do not require prolonged exposure to the metal.

If still chemical method If it is decided to use it for large accumulations of soot, then neat grooves are left on their surface with a brush or scraper, which will help the solvents to better penetrate the soot. Acids are diluted in water and pumped under pressure into the boiler container, then they are washed out big amount water.


Mechanical cleaning

This cleaning method involves physically separating soot from the surface. It is also imperfect - it is a long process, and if handled carelessly, it is also harmful to the boiler. Trying to remove soot, its walls can be severely scratched, which will lead to accelerated corrosion of the metal. To prevent this, choose items for cleaning that do not have sharp corners. Tools for mechanical cleaning boilers often come complete with them - these are scrapers, wire brushes, and pipe cleaners.

They clean the boiler either simply with brushes, or use various abrasive substances with them. For a thin layer of soot of 1-2 mm, ordinary soda is also suitable.

In addition to soot, cleaning will also remove salts that have settled from the water - scale. This scale must also be removed from time to time by cleaning the boiler heat exchanger, mechanically or chemically. At mechanical cleaning it is regularly washed with running water, and with chemical washing, the acids are pre-mixed with water and heated. Gel chemicals do not need to be diluted but are added directly to the cooled heat exchanger. They are slightly less effective, but at the same time less aggressive towards metal.

Filling the boiler with water, boiling it and then draining it will help to significantly reduce the amount of soot. Many boilers also provide air cleaning - there are holes for supplying air under pressure.

When cleaning the boiler and stove with any chemicals work should be carried out wearing protective gloves and preferably in closed clothing, because all these products are more or less aggressive and dangerous to the skin.


Removing soot from the stove

The color of the flames and smoke indicates first of all that it is time to clean the stove and chimney. The optimal color of a stove flame is light orange. If significantly more dark shades, this indicates a lack of traction in the system. The same thing is indicated by the black color of smoke from the chimney.

Soot accumulates in a stove much more slowly than in a chimney, so it needs cleaning less often. To avoid having to remove all the debris from the stove again, it is cleaned after cleaning the chimney. This is usually done manually with stiff brushes, and a vacuum cleaner is used to collect soot scattered throughout the room.

The vacuum cleaner can be used as a special construction vacuum cleaner, or you can use some old Soviet device for these purposes. It is important to clean it well after use. There is no point in washing the filter - the soot will only be smeared. Usually it is removed with dry sand - it is sucked up, the filter with sand and soot is shaken off, and if necessary, the procedure is repeated several times.


Mechanical cleaning is carried out when the channel is significantly clogged with soot or foreign objects. Naturally, the stove is turned off, the firewood is removed from it, and all the dampers are also closed so that soot does not fly around the room. A round chimney is cleaned with a brush slightly larger in diameter than the chimney itself. Square and rectangular chimneys are cleaned with brushes. If an impenetrable blockage occurs during cleaning, they try to remove it or push it down with a pole. If this does not work, then a device is used in the form of a ruff suspended on a rope with a heavy metal ball at the end.

The chimney can also be cleaned of soot by adding special substances to the fuel, which during combustion contribute to the decomposition and burning of the soot - it partially burns, and partially crumbles into the firebox, from where it can be easily removed. These drugs are available in the form of liquid, powder and solid briquettes. To prevent the chimney from becoming clogged, it is recommended to use them regularly, strictly following the instructions in the instructions for use, in order to prevent fires and poisoning from combustion products.

As a preventative measure, one simple folk way. About a bucket or two, depending on the volume of the oven potato peelings burned without the use of additional fuel. The starch released during the process helps burn off the soot.

As you can see, there is nothing difficult in cleaning the boiler and furnace from accumulated soot. Subject to safety and accuracy, this work can be done by anyone living in the house, and there is no need to call a specialist every time. But no less important than proper cleaning of the stove and boiler is the use of high-quality fuel. And even more so, in no case should you use plastic items or leftover food for this purpose. It's important to remember that correct operation furnace will help minimize the formation of soot and reduce the frequency necessary cleaning home heating systems.