How and with what to flush the heating system yourself

There are several reasons that can make the owner of a private house think about cleaning the heating system:

• First of all, this is a decrease in temperature, which is not due to any visible reasons.
• Also - this is an uneven heating of the radiators. For example, the top heats up well, and the bottom is almost cold.
• And, finally, an increase in fuel consumption with insufficient battery temperature.

Having noticed at least one of these signs, experienced owners are looking for an effective and simple way than to flush the heating system in a private house with their own hands.

The simplest in this matter is to contact a specialized company that provides such services. However, it is no secret to anyone that this is an expensive pleasure.

Also, sometimes a water-pulsing mixture is used to flush the heating. To do this, a special device is connected to the batteries, which supplies them with a stream of water with air. He, in turn, passing through the system removes all deposits from its inner walls.

This is a good and effective way, but its price is quite high.

An alternative to the two methods described above is mechanical cleaning, however, it involves completely dismantling the heating system in a private house with your own hands before flushing it. This is extremely inconvenient and difficult, besides, not every master knows how to do it correctly.

It is much easier to go to the nearest store or find a site on the Internet that sells special chemicals for flushing heating. So you will save a lot and at the same time the quality of cleaning will not suffer.

The main thing is to choose a good quality product from a reliable manufacturer and make sure that it is suitable for your type of heating system.

The next step is to carefully study the instructions and provide yourself with the necessary protective equipment.

After these points are completed, you can proceed to the cleaning itself.

Technology for flushing the heating system by chemical method

1. Before flushing the heating system in a private house with your own hands, turn off the boiler and let the pipes cool down.
2. Then, a special chemical composition is launched into the water that the batteries are filled with and the pump is turned on. The liquid begins to circulate and the acid, which is part of it, effectively dissolves all possible types of deposits.
3. After a while, the system is lowered and flushed with clean water to wash away any remaining acid.
4. When enough water has passed through the pipes, they can be refilled and the boiler connected.

When heated, the radiators will immediately give you the opportunity to notice the result of flushing.

The main advantages of this method are

• High-quality removal of lime deposits and rust on the inner surface of pipes.
• No need to completely dismantle the heating system.
• Uniform heating of radiators after flushing.
• Reduced fuel consumption and, as a result, savings.
• Extending the life of the heating system.

Flushing of boilers and heating systems - always warm and comfortable

No matter what gas or electric boiler is in your apartment or office, no matter what heating system heats your room, no matter how perfect and high-quality your appliances for maintaining comfort and climate are, they, unfortunately, are appliances, which means they are completely naturally can fail. Is it possible to avoid breakdowns and problems in the operation of hot water and heating equipment? Is it possible not to put up with problems, but to prevent and prevent them?
Yes! But for this you need to find professionals who will tell you what to do and recommend how to do it so that your boilers, columns, heating systems do not fail.
We are professionals in the market of hot water boilers and heating technology, we have many years of experience in installing boilers and their maintenance, and therefore we know what to recommend to you. We have all the necessary equipment for boiler maintenance so we know how to help you. We know that you need systematic boiler flushing and heating flushing so that your equipment is always ready for use. Let's take a closer look at when and why it is required flushing of boilers and heating systems.

Flushing boilers during installation

When installing the boiler, it is important to debug the supply of gas, electricity, water, so as not to have problems with the operation of the equipment, you need to debug the automation. All this is known and understood by every buyer. However, not many people know that when installing a gas or electric column or boiler, it is necessary to flush the boiler in order to remove factory dust, soot, and harmful compounds that may be unsafe for human health. Here, the boiler is flushed in several stages using alkali and repeated flushing. It is better to entrust this work to a specialist who knows the rules and standards of technology, and accordingly, will be able to prepare the equipment for operation, and you will be sure that your equipment will last a long time.

Flushing heating systems before the start of the heating season

The heating season requires special preparation. If during the summer you did not operate your equipment, then the corrosion process may begin in hollow metal pipes, which is why it is necessary to flush the heating, as well as flush the boilers that have not been operated for a certain period. We will prepare your heating system for the new season, which is included in the service of boilers and heating systems.

Flushing of heating systems as a measure for the prevention and removal of scale, rust, lime deposits
The water that is supplied to the system has a lot of lime impurities, and often sand, which is why periodic flushing of boilers, boilers, columns is required. Professionals will carry out a comprehensive flushing of systems, pipes, coils, tanks, which will ensure uninterrupted operation of the equipment.

Types of flushing boilers and heating
We suggest you flush the boiler and heating in the following ways:
- chemical. In this case, the effect on blockages is carried out primarily with chemicals, and then flushing with water is carried out. The method is suitable for any boilers and heating systems.
- hydrodynamic. Boiler flushing carried out using special equipment that creates a stream of water under pressure. This method is effective, but more expensive, because a special technique is used.

Is it possible to do the flushing of heating boilers on my own?
In order to flush the boiler and flush the heating yourself, you need to have skills and experience, because you want to extend the life of your heating equipment. You can periodically flush yourself with chemicals that you can buy from us. However, even in this case, you will need to diagnose the boiler at least once a year. We will help your heating technology to withstand any test.

Heating flushing fluid, heat exchanger cleaning

There is nothing eternal, and this statement is entirely true for heating systems (CO) of any complexity and configuration. The root cause of this phenomenon, most often, is the clogging of pipes and elements of the heating circuit with solid-crystalline, corrosive or oil-mud deposits. There are many ways to remove contaminants from the internal surfaces of the pipeline, among which the hydrodynamic method is most often used (cleaning from plaque with a powerful pressure of water). This cleaning method is quite simple and relatively inexpensive, therefore it has been used for many decades in the housing and communal services system.

Hydrodynamic cleaning involves the creation of high pressure in CO, which makes its use impossible in a number of cases. The problem is solved by flushing the system using special chemical and microbiological agents, which will be discussed in this publication.

The need for CO flushing and its frequency

As you know, cleaning the heating system is performed in two cases: when it is already clogged, or so that it does not clog. In other words: flushing the heating system can be preventive (scheduled) or according to certain indicators, the signs of which are:

• Increase in hydraulic resistance.
• Repair or replacement of CO elements.

But, the main criterion for flushing the heating system is a decrease in the efficiency of heat transfer. The frequency of flushing centralized SS of private and apartment buildings is regulated by SNiP 3.05.01-85 (once every 12 months).

Important! The frequency of flushing autonomous heating systems is not regulated. Cleaning is carried out as needed, independently or with the involvement of licensed specialists.

Method of CO chemical washing

The essence of this technology is the addition of an acidic or alkaline reagent (depending on the type of pollution) to the CO, which dissolves or softens the plaque formed inside the pipes. Pollution is removed from the CO by the flow of water. The process of carrying out measures to clean the heating system is as follows:

1. Reagent selection. This stage is very important and depends on the type of pollution, the current state of the pipeline, the material from which the heating circuit and radiators are made.
2. Installation and connection of equipment.
3. Introduction of the reagent solution into the coolant circulating in CO. An autonomous pumping station maintains the circulation of chemicals through. The indicator of the end of the chemical flushing process is a clean filter in the pump coolant filtration system. It usually takes 8 to 22 hours for the dissolution and removal of solid crystalline contaminants (scale).

Tip: When using acidic reagents, the process of solution performance is controlled by the PH level. After increasing the pH of the composition to 7, it is necessary to drain the solution and continue cleaning with a fresh composition. Cleaning the system usually continues until the acidity of the solution stops changing.

1. Removal of contaminated solution from the heating circuit and repeated flushing of CO with corrosion inhibitors. This stage is necessary to protect the internal surfaces from corrosion after chemical exposure to the reagent.
2. Removing the solution from CO.
3. Dismantling of equipment and filling CO with coolant.

Important! It should be understood that when using chemicals, thinning of the pipeline walls occurs. That is why it is not recommended to use chemical flushing of the heating system more than once every 3 years.

Advantages and disadvantages of this technology

Chemical treatment makes it possible to remove almost all types of solid-crystalline and corrosive contaminants from CO. In addition, this technique has the following advantages:

• Easy to carry out washing procedure.
• Fast cleaning effect with chemical reagents.
• It does not require stopping the heating system and can be carried out even in winter.
• High quality cleaning.

Despite a lot of advantages, this method has very obvious disadvantages and limitations.

• Alkaline and acid solutions cannot be used in CO with aluminum radiators.
• The toxicity of the compounds.
• Quite a high estimate for flushing the heating system by chemical means.

Another not obvious, but still disadvantage is the problem with the disposal of the solution, which cannot be drained into the sewer system. In addition, you should be prepared for the appearance of smudges that did not exist before or that you forgot about. Some leaks self-repair over time due to the fact that the hole through which the coolant oozed gradually became “overgrown” with lime deposits. Chemical compounds will dissolve and wash this "plug", and the flow will resume again. It is quite possible that after chemical washing it will be necessary to repair or change leaky pipe fragments, couplings, fittings.

Tip: The remains of a solution with high acidity are neutralized with soda. Only after that the composition can be drained into the sewer.

Chemicals for self-flushing of CO

Today, the Russian climate technology market offers the widest range of ready-made solutions and concentrates for chemical flushing of heating systems of various configurations. Among the most requested:

Tip: to improve the washing process with a high percentage of organic contamination, it is necessary to use the DEOXYL-HO additive. To reduce foaming during flushing, experts recommend additionally using the FORAL-PG additive.

During the operation of heating and hot water supply systems, due to salts and oxygen dissolved in water, corrosion-scale deposits gradually form on internal surfaces, especially on the walls of the boiler. This causes a significant decrease in the efficiency of the entire system as a whole, leads to excessive fuel consumption and reduces the resource and reliability of the equipment.
These problems can be eliminated with the DIXIS LUX heating system flushing liquid, an aqueous solution of which is intended for chemical cleaning of heat exchange surfaces made of ferrous metals, stainless steels and copper alloys, which will ensure the restoration of effective heat transfer.
Recommendations for use:
1. Drain the waste coolant and flush the system with clean water.
2. Prepare a working solution at the rate of 10 liters of "DIXIS LUX" - concentrate for 90 liters. water. It is advisable to use softened or rain water.
3. Fill the system with the prepared solution and flush it at a temperature of 60-70°C for 2.5 hours, providing communication with the atmosphere to release the released carbon dioxide.
4. Drain the used solution into the sewer and flush the system with clean water.
5. Prepare the required amount of neutralizing solution at the rate of 1 liter. "DIXIS LUX" - converter for 99 liters. water.
6. Fill the system with the prepared solution and flush it at a temperature of 60-70°C for 45 minutes, ensuring communication with the atmosphere.
Chemical cleaning with the DIXIS LUX heating system flushing agent takes place under milder conditions than when cleaning with mineral acids.
Due to the balanced formulation of the agent, carbonate deposits are quickly loosened and converted into a soluble state (which eliminates the formation of suspension and precipitation in the washing solution), and the metal surface is covered with a protective film that prevents the process of acid corrosion.
DIXIS LUX heating system flushing liquid is an aqueous concentrated solution of a mixture of organic acids, a complexone, a surfactant and an acid corrosion inhibitor. Does not contain inorganic acids.
Working solution: 10% aqueous solution of concentrated liquid for flushing the DIXIS LUX heating system. For 100 l of the system, one 10 l canister of liquid is used to flush the DIXIS LUX heating system.
During cleaning with DIXIS LUX heating system flushing liquid, metals are not etched and rubber gaskets are not destroyed.
Liquid for flushing the heating system DIXIS LUX allows cleaning of heat exchange surfaces in 1-3 stages with deposits up to 1000 g/m2, which provides:
restoration of efficient heat transfer;
protection of heating elements and walls of boilers from overheating;
saving gas, diesel fuel, solid fuel and electricity;
increasing the resource and reliability of heat engineering equipment.
Manufactured by highly qualified specialists on modern equipment with 100% output control.
The quality and effectiveness of the DIXIS LUX heating system flushing liquid is confirmed by the successful long-term practice of cleaning various heat engineering systems from scale and corrosion products.
Supplied as a concentrate complete with neutralizer of residual acidity.

Over time, various contaminants appear in the heating system, which settle on the walls, reducing their conditional passage. This leads to , as well as to disruption of circulation, the speed of the coolant decreases. Pollution of the batteries and the boiler greatly reduces their efficiency. To bring the circuit into proper form, it must be cleaned. In today's article, we will tell you which liquid is used to flush the heating, as well as how the process itself goes.

Types of liquids for flushing heating

Heating flushing fluid

To clean the heating system of all kinds of dirt and scale, use a different liquid for flushing the heating. At the same time, the washing equipment is also different, because each composition has different characteristics. To begin with, let's look at what types of pollution are found in the heating circuit:

• carbonate-calcium deposits;
• iron oxide deposits;
• scale;
• waste products of aerobic bacteria;
• ordinary trash.

If we approach the issue in a generalized way, then we can distinguish two categories of liquids for flushing the heating system:

• ordinary water;
• chemical compounds.

In turn, chemistry is also different. It can be acid or alkali. Both of these fluids for flushing the heating system have a common name - reagents. The difference between alkali and acid is obvious. Alkalis are more gentle on pollution and the materials from which the circuit is made, acid, in turn, corrodes everything, even pipes. Yes, if the pipes are corroded from the inside, but this is not visible from the outside, then after using acidic reagents that corrode rust, a coolant leak may occur. make them resistant to acids.

Alkaline boiler flushes are mainly used to clean membranes, while acidic agents are used to clean heat exchangers and pipes.

Tellingly, the liquid for flushing heating radiators is selected depending on the material from which they are made. The choice of acids is quite wide:

• acetic;
• salt;
• formic;
• orthophosphoric;
• lemon.

That's what settles in the radiators

Ordinary acid-containing household products, such as Silit, are also used, but this is if you need to rinse the battery or boiler heat exchanger. In the case of the entire circuit, this will not be very profitable, since Silit, which includes phosphoric acid, will cost more than just a concentrate. If you approach flushing heating with acids with all seriousness, sometimes excessive, then before the procedure you need to do a water analysis. It will show which impurities predominate in the coolant. Based on this, it will be possible to select the necessary flushing fluid.

It is not necessarily one of the above acids. Most likely, you will need to either mix several ingredients, or rinse with different compositions in turn. Usually such difficulties are unnecessary and the masters are washed with what they are sure of. Use already proven liquid for cleaning heating systems. Different plumbers have their own, as well as their favorite flushing methods.

Acid and alkaline reagents are sold in three types:

• powder;
• concentrate;
• finished composition.

The powder, like the concentrate, is diluted with water, in the proportion indicated on the package. The finished composition does not need to be diluted. The composition of the reagents for flushing the heating system includes:

• active substance (acid or alkali);
• inhibitors that prevent corrosion;
• surfactants (surfactants).

Surfactants have detergent properties. They not only separate impurities, but also hold them, preventing them from settling inside the circuit. The special composition of the reagent does not affect the rubber seals.

How to wash with water

Water by itself will not clean the system in any way if no chemicals are added to it. After all, water always circulates around the circuit.

To clean the heating system with water, special equipment is required.

The principle of operation of water treatment plants is different. There are several types of such methods:

• pneumatic cleaning;
• impulse cleaning.

Pneumatic cleaning of the heating system is that water is supplied under pressure to the pipes. A jet under pressure knocks contaminants off the walls. Then it merges, and the process is repeated until, after the next filling, clean liquid flows out of the circuit. First, the flow is directed from the supply side, and then from the return side. This approach allows you to more thoroughly flush the heating system.

Impulse cleaning of the heating circuit lies in the fact that the fluid for flushing the heating system is not only supplied under pressure, it also pulsates. In order to create impulses, a special gun is connected to the compressor. It abruptly opens and closes the fluid supply. The speed of such pulses reaches more than a thousand meters per second. The pulsation of the liquid separates the contaminants from the walls layer by layer. The procedure is repeated until clean water. After washing, carry out using the same pumps that were used in the cleaning process.

How to wash with chemicals

A vivid example of how badly a pipe can become clogged

The technology for flushing the circuit with chemicals is simple. All you need is a pump. Using a pump, the heating system flushing fluid is pumped into the circuit and circulated for several hours. After that, the tool is removed from the system. Nothing complicated, all the work is done by chemistry.

To flush the boiler heat exchanger, the heater will have to be disassembled and then poured into the composition. After a few hours, the chemistry drains. The question arises how to determine that the system has already been flushed. There are several options here:

• the first is, of course, the experience of a plumber;
• the second is special additives in the reagent.

Such additives are not available in all products, of course, their presence affects the price. When the liquid enters the circuit, it begins to interact with pollution, the process is accompanied by foaming. When the solution stops foaming, washing can be completed. Some products form a protective film on the inner surface of the pipes.

When cleaning the system with chemicals, toxic, dangerous gases for humans are released - chlorine and nitrogen.

Some other manufacturers provide a color indication that shows the chemical activity of the reagent. When the solution begins to work, it may change color, which means a lack of concentration. By following the instructions on the packaging, you can determine by color when more reagent needs to be added to the circuit.

Chemical reagents are quite aggressive, which creates difficulties after they have been used. In order for the waste chemistry to be drained into the sewer, manufacturers add special additives to it, which make the composition biodegradable. If such additives are not provided, then after use, a neutralizing liquid must be added to the reagent and only after that the composition should be drained into the sewer.

Summarizing

There are two types of liquid for flushing the heating system - water and chemistry (acid or alkali). Water cleans the circuit due to pressure or impulses, and chemistry due to its active substances. To clean the system with water, more sophisticated equipment is required. Modern chemicals do not harm pipes and heat exchangers, they do not destroy rubber seals. Additives are added to chemistry, which visually show the degree of activity of the substance. Even in household products, such as Silit, there is phosphoric acid, which can be used to clean the batteries and the boiler heat exchanger.

During the operation of the heating system, sooner or later a situation arises when scale forms in the pipes, various kinds of deposits on the inner surface, the diameter narrows due to the stuck pieces of debris or scale. As a rule, this situation occurs in systems where water is used as a heat carrier. Basically, a not very purified coolant is used to heat houses - pebbles, pieces of rust, scale can come across in it. In addition, water contains various chemical formations - they settle on the inner walls of pipes under the influence of high temperatures.

In such cases, it is necessary to flush the heating system. As practice shows, scale 2 mm thick reduces the efficiency of the heating system by 48%.

Flushing is a standard service procedure that must be performed periodically - otherwise, you cannot avoid a significant decrease in the efficiency of the heating system, an increase in energy costs and the destruction of sections of the highway.

If in an apartment building such work is performed by employees of special services, then in a private house the owners have to take care of such things themselves.

Flushing the heating system during installation

When installing the heating system of a private house, it is necessary to check all the elements of the main line for the absence of small construction waste in them. After installation, it is necessary to rinse with water - we do not use any reagents:

• We start up a strong pressure of cold water and leave it for 2 hours - this way we remove small foreign particles from the circuit.
• We start up the maximum pressure of hot water - it washes out various oil formations.

Then a similar procedure must be performed after 3 months and regularly repeated annually.

After stopping the heating main for the summer period, it is recommended not to drain the water - otherwise, all foreign formations inside the circuit will harden and it will be impossible to remove them. In addition, sealed connections may dry out and start leaking when the heating system is restarted.

Signs of scale inside the heating circuit

We can determine that scale has formed inside the pipes by the following signs:

• A noticeable decrease in the efficiency of space heating.
• Extraneous noise during operation of the equipment.
• Radiators warm up either only from above, or only from below.
• A significant increase in the consumption of energy resources - electricity, gas, solid fuel.

All of the above symptoms indicate that it is time to flush the line. For its implementation, you can use equipment for flushing heating systems, as well as special reagents - a means for dissolving and destroying scale and rust.

This method requires a special setup. The device fills the line with a mixture of compressed air and water. This creates a fine pulsation, which removes rust, scale and lime deposits from the inner surface of the circuit. Such an installation very effectively cleans the main from all foreign formations, as a result of which the efficiency of heating the house increases and energy costs are reduced.

Biological reagents - an effective means for flushing the circuit

It is possible to perform such flushing without stopping the operation of the line - biological reagents are added to the heat-carrying liquid, which, dissolving in it, circulate along the circuit and wash out rust and scale.

This tool is advantageous in that no special apparatus is needed here, we do not stop the operation of the system, in addition, this is a very environmentally friendly method that does not destroy the inner surface of the pipes and does not pollute the environment.

Chemical reagents for flushing the heating line

Chemical flushing is also a very effective means of cleaning the circuit from foreign formations. Chemical washing is a liquid containing reagents in the form of various acids. It is used in complex circuits, where there are many hard-to-reach places. A liquid of this kind very successfully copes with all types of pollution, but you should read its composition very carefully before use. It must be compatible with the material from which the circuit is made - otherwise its use may cause the destruction of pipes.

Pneumatic shock method

Another method that requires a special apparatus is the method of pneumohydraulic shock. It lies in the fact that the hydraulic installation is connected to the line and creates pneumatic hydrowaves. The main impact force is transferred to the coolant - approximately 98%, the remaining 2% - to the walls of the system. Under the influence of these waves, all scale and rust fall off the inner walls of the pipes. This method is quite safe and applicable to any type of circuit, even very old ones.

Conclusion

Flushing the heating mains in a private house is a mandatory service related procedure. It must be carried out periodically in order to avoid a decrease in the efficiency of the system, an increase in energy consumption, as well as the destruction of the line due to critical contamination with rust and scale.

The owners of private houses must independently control the degree of pollution of the circuit and take care of the timely completion of all service work.

The maintenance of heating systems in apartments should be supervised by management companies. Residents of their own home have to perform maintenance on their own. Actual preventive maintenance and repair should be carried out in a timely manner. Modernization can save space heating costs and extend the life of the boiler and other heating devices. The most important step in preparing for the heating season is cleaning and flushing the entire heating system. It begins with cleaning the contours of pipes and heating devices from pollution.

Flushing the heating system in a private house: signs of clogged pipes

For the optimal functioning of the heating system, the movement of the coolant through the heating system should not interfere with anything. There are several signs of clogging of the heating system and the accumulation of a large amount of debris in it, and the accumulation of scale on the walls of the pipes. There are no obvious and visual signs of contamination of the system. You can diagnose the system with a careful examination of the operation of the heating system and the appearance of a number of signs.

We single out 4 main signs of pipe pollution, namely:

• Warming up the system takes longer than usual;
• The boiler works with the appearance of incomprehensible sounds;
• The consumption of electricity or gas has increased;
• Different temperatures in the parts of the radiator, that is, the radiators are clearly at a lower temperature than the supply to them.

In general, uneven or weak heating of the radiator is not always a sign of contamination. It could be airing the system. In this case, it is enough to bleed the air intake through the bleed valve.

In those houses where a central heating system is connected, flushing should be carried out by employees of heat supply organizations and invited masters. But no one can give a 100% guarantee that the cleaning and the system was carried out on a full scale. Too many factors go into this. The coolant of the central heating system must undergo water treatment, and this reduces the level of pollution. But, unfortunately, such preparation is not always carried out. And the system itself performs its functions for a long time, and this increases the amount of pollution in it.

For central networks and autonomous heating systems, flushing of pipes must be carried out once a year. This is the building code. Such a period is critical for the accumulation of dirt in the pipes, which clearly reduces the heating efficiency.

Why is flushing the heating system in an apartment building so important?

With sometimes inside the pipes and radiators of the central heating system of multi-storey buildings, deposits of salts, scale, rust and sand are formed. Such formation affects the material from which the heating system is made, and makes the pressure of passage in the pipes much smaller. And this can lead to a rupture of the system at the most inopportune moment. And this threatens to flood the apartment with hot water, but this is not so important, but it is important that this water can seep to the neighbors from below and it is no longer possible to do without compensation or repairs.

If you do not take into account such a disaster, clogging of pipes and radiators entails many negative consequences.

The negative consequences of clogging radiators and tinder heating systems are:

1. With the formation of layers of dirt in the pipe, the strength of the mechanical type of the heating system decreases.
2. Obviously, the friction of water along the inner walls of the pipes and the radiator increases, and this significantly reduces the fluid flow rate.
3. The wall thickness increases and this reduces the inner diameter of the pipe, and this reduces the heat transfer from the pipes and the radiator. The temperature of the liquid also decreases, as it undergoes thermal resistance.
4. The formation of scale in the system increases the need for fuel for heating, which means an increase in utility bills.

To clean the internal surface of the system from deposits, it is necessary to carry out preventive work. Prevention can be done in a variety of ways.

Prevention can be done in the following ways:

• The first method that can help is to try to improve the heat carrier, this can only be done in autonomous heating systems, but not in central heating systems;
• The second way is flushing and pressing the heating system, and this must be done regularly.

To carry out preventive maintenance of pipes and radiators of the heating system is available to everyone, in contrast to improving the quality of the coolant.

Chemical fluid for flushing the heating system

Very often, chemicals are used to clean heating systems. With the help of such means, deposits are partially dissolved, exfoliated and removed. Chemical reagents have a different composition, it includes different acids, alkalis, complexing agents and solvents. Such products are toxic and therefore the work using them must be carried out carefully and as carefully as possible. Cleaning behavior approx. 3 days with the heating system running.

Using for cleaning non-galvanized pipes, such a tool is not effective and can lead to the detection of new leaks and new lesions.

Most of the pollution settles on the bottom of pipes, radiators, furnace heat exchangers or boilers. In order to fully clean the entire area, a special cleaning liquid is used instead of water and is pumped through the entire system with a pump. After that, the flushing liquid is drained and repressurization is done, and then water is poured into the system and put into use.

Do-it-yourself washing batteries in a private house is a little easier than in an apartment building. In order to clean the installation, there are different ways. For example, cleaning can be done with citric acid, this option is perfect for polypropylene pipes, and rust from metal pipelines will disappear instantly. Flushing is also used for underfloor heating, unless of course it depends on the installation of batteries. Here, hydrodynamic flushing will become ideal, which makes it possible to clean even the most distant corners. Of course, the work can be done independently, but it is better to entrust it to KOSGU.

How to flush the heating system with your own hands

Cleaning can be carried out in several ways, but we will consider the most common, chemical.

Such an option as chemical washing involves the use of a solution of an alkaline substance, solvents, organic substances and minerals. The device for flushing is necessary: ​​a hose, a pump, a reservoir for draining the liquid.

Flushing must be done in the following order:

• We drain all the water from the heating system;
• Pour a special solution;
• We connect the pump for pumping the system for about 2 hours;
• We drain the liquid with the reagent;
• We flush the system with plain water.

This method shows a 100 percent cleaning rate, but it can only be used in iron heating systems. If the system has the presence of aluminum elements, then such flushing can damage them. And therefore, before using reagents, you need to consult an expert or carefully study the contraindications to using a cleaner.

Precautions in using such a chemical heating system cleaner:

• Before working with such a solvent, rubber gloves must be worn;
• Such chemical cleaners are made with different compositions, and it may have a constituent element that can cause burns to the mucous system and that is why it is better to wear a respirator;
• It is strictly forbidden to drain the cleaner after cleaning into the toilet or into the garden, and you can buy a special tool for disposal.

Be sure to consider all these points when working with a chemical type of substance.

How to properly flush heating (video)

Flushing batteries is a process that is familiar to almost everyone. Even a child can tell why this process is necessary. As a rule, such work is not done independently. But if you have received permission for this, then our instructions indicated in the article will definitely come in handy in your future work. Be sure to follow all the recommendations.

Content

The heating system is the most important part of engineering networks, the uninterrupted operation of which ensures comfortable living conditions in the cold season. Timely repair, cleaning and other preventive measures significantly increase the service life and save fuel. If the management company is engaged in maintenance and repair in apartment buildings, then all questions regarding how to flush the heating system in a private house have to be resolved independently.

Causes of clogging of the heating system

The most common cause of blockages in the heating systems of a private house is corrosion of the inner surface of pipes from exposure to air in a humid environment. After some time, rust fragments circulating through the pipes together with the coolant settle and accumulate in the circuit. Particles settle in the most unfavorable areas - pipe bends, contributing to the appearance of ruptures and fistulas. Ultimately, the coolant loses its throughput, there is a violation of the stability of the temperature regime in various sections of the pipeline, and therefore it is necessary to clean the system.

Another common and no less dangerous cause of clogged pipes is scale. If corrosion is characteristic only of metal heating networks, then scale affects even plastic pipes, clogging them with small particles. The quality of the water filling the circuit is significantly reduced, sludge is formed in which debris gets stuck.

Pipes made of any materials are equally susceptible to pollution, therefore, regardless of the type of pipeline, it is necessary to clean the system in a timely manner.

Why flushing is necessary and how often

In multi-apartment residential buildings connected to centralized heat supply networks, flushing of heating systems is carried out annually and strictly according to a schedule that meets the requirements of SNiP. In the private sector, this procedure is carried out as needed.

It will be much cheaper to annually flush the system in a private house, performed during the inter-heating period, than to allow dirt and deposits to accumulate in it for several years, waiting for most of the pipeline flow area to be blocked.

In urban boiler houses, water treatment is regularly used to clean the coolant, but the unsatisfactory condition of the networks leads to constant water pollution. It is not easy for city utilities to cope with such a problem, which is why summer temporary shutdowns of hot water sometimes occur.

Owners of individual housing fill the heating system with plain water from the water supply without any preparation, in this case the only precaution is to install a filter at the water inlet to the house. Regular and timely flushing of the heating system in a private house allows you to increase the service life and increase the efficiency of the boiler, pipes and radiators, and prevents the formation and attachment of salts and scale to their walls, leading to destruction.

The filter installed in the boiler piping circuit is able to protect the heating equipment only from small impurities that are initially in the water and do not cause any particular problems.

If heating systems are not flushed for a long time, then the resulting deposits are even more dangerous and lead to a significant decrease in the efficiency of the heating network, reducing the inner diameter of the pipes and, accordingly, the throughput. In this regard, the hydraulic resistance of the pipeline increases, and the batteries do not receive enough heat required for normal space heating. Scale found in radiators and heat exchangers significantly reduces their heat transfer performance. The heat generator has to consume more fuel to increase the energy of the coolant and, as a result, increase the temperature in the living room.

Cleaning the heating system is usually the last thing in line for a troubled homeowner to do. Often, not understanding what the matter is, the owner raises the temperature of the coolant by simply turning the boiler handle, causing an increase in fuel consumption.

If problems with heating efficiency are identified, the system should be purged immediately. And in order to avoid such situations that usually arise in the midst of the heating period, it is necessary to perform annual maintenance.

How and how to flush radiators and heating system

The process of cleaning the heating system at home is not complicated, any owner can cope with it.

There are several ways to clean the heating network in a private house with your own hands:

• mechanical washing;
• dry cleaning;
• method of pneumohydraulic impact;
• biological washing.

Mechanical flush

This method of flushing heating systems requires a complete disassembly of all communications - before cleaning the elements, you will have to remove every detail of the system. The complexity of the method lies in cleaning the internal surfaces of pipes and batteries from scale and rust manually using metal brushes. Nowadays, it is practically not used, as it requires a significant investment of time and effort.

Chemical Wash Method

Cleaning the system requires connecting a pump with a container filled with chemicals. The detergent dissolves and exfoliates contaminants adhering to the pipe walls.

For chemical cleaning, two types of liquids are used - acid or alkaline, depending on the material from which the pipes and batteries are made, as well as the type of deposits. Chemistry is recommended to flush the heating system also in cases where it is too difficult to remove the elements of the system.

Alkaline or acid based flushing fluid should not be used with aluminum batteries due to the fact that the metal reacts with chemical compounds. It is also forbidden to clean depressurized systems, since the chemical flushing agent is toxic and can be harmful to health. For the same reason, used liquids cannot be drained into the sewer, and work should be done with rubber gloves and a respirator.

Before flushing the heating pipes of an individual house, it will not be superfluous to have the help of an expert who can select the optimal composition of the liquid based on his own analysis of contaminants and the configuration of the pipeline.

After chemical cleaning, all contaminants will be completely removed, the service life of the system is extended.

Hydropneumatic flushing

This method consists in treating the internal surfaces of batteries and pipes with a high-pressure air-water mixture. Flushing the heating system in this way is highly efficient, but its use requires special equipment.

Hydropneumatic cleaning has proven itself when working with old-type cast-iron radiators, still Soviet-made. Cleaning with water and air does not impose any strict requirements on the elements of the heating system, as a chemical method, that is, it is equally suitable for all types of materials and pipes. Despite the high cost compared to the chemical method, it is completely safe and more effective.

Pneumatic shock method

This method is the fastest (takes no more than an hour), convenient, since it does not have to dismantle the elements of the system, but requires the use of special equipment.

Special equipment is attached to the ends of heating communications - a pneumatic gun, with the help of which a pneumatic-hydraulic impulse is supplied to the pipeline, which peels off contaminants adhering to the walls of pipes and batteries.

Despite the serious and frighteningly complex name, flushing pipes in this way is absolutely safe, since a force of no more than 2% of the pulse power is applied to the walls, and the main blow falls on pollution.

Communications can be cleaned with a pneumohydroblow only if their total length is not more than 50 m, otherwise the required efficiency will not be achieved.

biological flush

At its core, this method is very similar to the chemical method, only high-tech solvents and wedging biological products are used instead of dangerous reagents. Under their influence, the crystalline bonds of pollutants are destroyed, corrosive and organic deposits are cleaned off.

The flushing biomaterial is produced on a water basis, and their use allows you to completely clean the heating network in an apartment building and in an individual dwelling.

Conclusion on the topic

Timely and regular cleaning allows you to ensure the smooth and safe operation of home heating systems. When heating a house, one should not bring matters to the point of taking radical measures - the use of chemistry or the use of pneumatic shock, because taking care of the system, from the boiler to the radiators, is much easier and cheaper.

After you flush the system, you should use special additives that reduce the corrosivity of the metal. For these purposes, such a common substance as caustic soda is quite suitable. As a result of preventive treatment with soda, you can significantly extend the life of the system.

At the heart of any water heating system are pipes and water. And over time, the pipes rust, the scales of rust fall off, and the pressure of the water carries them through the system until they are held up by some pipe bend or joint. And even if the pipes are plastic and not subject to corrosion, then the water itself, when heated, forms limescale on the surface of the pipes and sediment. And if the heating often boils and you have to constantly add water, then this accelerates the process of sediment formation even more. Another source of pipe clogging is microorganisms and their metabolic products, which can develop in the heating system during the inter-heating period. As a result of their vital activity, a black sediment may appear at the bottom of the system, which is also a source of blockage.

But whatever the source of clogging of the heating system, the result of this is always the same -

Later some time the pipes are clogged,

Their throughput is reduced and then even the water pump is not able to pump water through the heating system. Not to mention the thermosiphon system operated without a water pump. And then not only do the batteries remain cold or almost cold, but also the boiler begins to overheat, which can disable it.

Some owners practice annual blockage prevention. by changing the water. Those. drain the old, dirty, rusty water and fill it with fresh water. There is logic in this - with old water, some of the scale and rust leaves the heating system. However, there is a flip side to the coin here. The fact is that iron and oxygen are necessary for the formation of rust. When these two components interact, rust is formed. And if there is always iron in the pipes - these are the pipes themselves, then oxygen is supplied with water. In water that has been poured into the heating system for a long time, there is very little oxygen left and the process of rust formation is greatly slowed down. But if the old water is drained from the system and fresh water is poured in, then the system will receive an additional influx of oxygen and the rust formation process will begin with full force. So it turns out that by replacing the water, we will remove a little old rust from the system, but we will speed up the process of forming a new one.

So how do you deal with clogged heating systems?
If desired, you can a priori get rid of the occurrence of blockages. To do this, it is necessary to fill the heating system not with tap water, but with a special antifreeze for heating systems. It acts exactly like an automotive one - it provides good thermal conductivity, protects metal parts from oxidation and rust, and prevents the formation of limescale and other types of sediment. This option is the most expensive, but it allows you to forget about the maintenance and cleaning of the heating system.

cleaning
The easiest way to clean the heating system is chemical cleaning (chemical flushing). To do this, you need to purchase a product that can dissolve rust and lime scale. As such a tool, you can use ordinary citric acid from the grocery store. A few glasses of citric acid (the more the better) is dissolved in water and poured into the heating system. After that, the boiler is turned on, the temperature is set more and left for a day. Then we drain the water with the deposits dissolved in it. We fill the system with clean water and drain it again to get rid of chemical residues and sediments.

You can also use vinegar for this purpose. But to get at least some effect, you need a lot of vinegar. A more reliable result is obtained when using hydrochloric acid (10 or 20 percent). It cleans the system well, but you should be careful with it so that the strong concentration of acid does not damage the pipes.
Well, it is best to use for this purpose special flushing agents designed for flushing heating systems, such as inhibited hydrochloric acid. They are based on all the same acids and additional additives that enhance the flushing properties and, moreover, protect the pipes.

But such chemical cleaning helps only with weak blockages. If the heating system is clogged more seriously, then chemical pressure flushing will save. For this, a water pump is used, which is connected to the heating system and provides increased circulation of water with chemicals. But a conventional pump is not suitable for this purpose, because. aggressive chemistry, which he will have to pump, will render him unusable.
You can also resort to hydropneumatic cleaning. For this, a compressor is used, which is connected to the heating system, and flushing with water is combined with pneumatic shocks, which make it possible to get rid of all deposits and sediments even better. To remove precipitation, the "return" is disconnected, i.e. a pipe that enters the boiler from below, and dirty water is removed through it. At the same time, fresh water is constantly supplied to the riser.
If such equipment could not be found, or if its use did not help in solving the problem, in this case, the dismantling of each boiler will help. Because it also accumulates plaque and deposits. Moreover, even in even greater quantities than in other pipes, because. it heats up to higher temperatures.
To clean the boiler, it is disconnected from the heating pipes. Further cleaning is carried out by the method of chemical washing. Those. the boiler is connected to a pump and water is passed through it, with the corresponding chemistry dissolved in it (inhibited hydrochloric acid, etc.). After that, the boiler is washed with clean water and connected back to the heating system.