How to purge the battery heating

The efficiency of heating a dwelling is largely determined by how well the seasonal work has been done in preparing its heating system for operation. That is why with the arrival of cold weather, the entire equipment entering the heating system is checked, and, if necessary, its repair is also performed. In this case, situations are possible when a battery that looks good with the beginning of the operational period heats up very little or does not heat at all.

This is most often explained by the fact that so-called “air plugs” are formed in the internal space of the batteries. To eliminate them, it is enough to blow the heating radiator, after which the indicated malfunction, as a rule, disappears.

Preparing for the removal of air plugs

Before flushing the radiators, first of all, you should be concerned about the tools used during the repair work. The working package should include the following items:

• the key to adjust the valve Mayevsky;
• screwdriver and adjustable wrench;
• small capacity (best bucket);
• WD-40 washing liquid (kerosene) and cleaning cloth.

It is necessary to make sure that it is air plugs that are the real cause of the detected malfunction.

You can make sure of this by a characteristic and clearly distinguishable “gurgling” in batteries that do not heat well, despite the fact that hot water regularly flows into the system. After finding out the reasons for the lack of normal heating of radiators, you can safely proceed to the removal of traffic jams.

Ways to remove traffic jams

The general procedure for carrying out operations to remove them is as follows:

1. If there is a thermostat in the heating system, you should fully open its control valve (note that sometimes this is enough to restore normal heating of the system).
2. In the absence of a thermostat, it will be necessary to use a valve located on a special valve, which is called the Mayevsky valve.
3. Using a special key, loosen the valve pressure slightly; at the same time, the appearance of a distinctly audible hissing will indicate that the air has started to “leave” the system.

Experts recommend repeating this procedure several times, consistently bleeding the air in small portions. And only after it is completely removed from the system through the faucet of Mayevsky should water flow, which is collected in a previously prepared container. After the water pressure in the faucet stabilizes and the hiss in the batteries disappears completely, you can return the valve to its original position.

In the case when your radiators are not equipped with a special valve for air bleeding - we advise you to use another way to remove it. This method involves the use of a special fluid (kerosene or a mixture of WD-40), which are applied to the upper cap of the radiator in the area of ​​the thread.

Then, with the aid of an adjustable wrench, the plug is carefully turned away until a characteristic hiss appears of air escaping from the battery and water seeping into the container prepared in advance. After the hissing has stopped - return the plug to its previous position, first putting several threads of a special FUM sealing tape on the thread.

Descaling by blowing

Quite a common cause of poor heating of the batteries in an apartment is the deposition of scale and foreign particles entering the heating system along with hot water on their walls.

Studies have shown that when the scale deposits are just 1 mm, the heat dissipation of the battery immediately decreases by 15%. That is why it is advisable to flush the heating system in accordance with the recommendations of specialists before the start of the operating season.

But first you will need to make sure that it is scum that causes the problems that have appeared, which is usually accompanied by the following characteristic manifestations:

1. In the case of formation of a thick layer of scale, the riser of the heating system is somewhat hotter than the radiators themselves.
2. When examining a radiator to the touch, a different degree of heating in different blocks is detected.
3. There is uneven heating of individual sections within one battery.

Having finally made sure that the scale is present, you can proceed to choosing the most suitable method for its removal in living conditions. However, you should be aware that the most effective, but at the same time the most expensive, is the method of hydraulic purging of the system, which is widely used along with other known methods of cleaning (such as chemical treatment, for example).

Hydraulic cleaning

As noted earlier, the hydraulic purge of the heating system is the most effective method of cleaning the batteries from the accumulated scale on their walls.

When implementing this method, a working mixture consisting of ordinary water and compressed air is fed into the existing high-pressure riser. To obtain it at home, you will need a compressor of the appropriate capacity, providing the required pressure in the purging channel and ensuring the removal of scale accumulated on the walls of the batteries.

Practice has shown that for modern apartments with cast iron radiators, the method of hydraulic purging is the most suitable option for organizing the work of cleaning them. In the event that the implementation of this method at home is impossible - you can remove the batteries and hand them over to a service center for cleaning, which has all the necessary equipment for this.

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Video

A specialist will tell you in detail about carrying out hydraulic cleaning: