What to do if the water in the boiler boils?

If the water in the heating system does not have time to cool down before it reaches the boiler, it will boil. What to do if the water in the boiler boils? Below, we will identify the causes of boiling, as well as what needs to be done to solve the problem and prevent it from happening again.

Most often, such a malfunction is observed in solid fuel boilers of long burning. What to do if the boiler boils? First of all, you need to determine at what stage in the system the boiling occurred:

  1. Immediately after installation and first start-up. A possible reason why the boiler boils is incorrect connection of elements, inaccuracies in the laying of pipes.
  2. After the system has been working properly for some time. The cause is a malfunction of the circulation pump or air ingress into the system.

How to reduce the temperature in the boiler?

The design of the boiler provides for the possibility of boiling water, but it will not be able to function for a long time under such conditions. If the boiler boils, what to do step by step:

  • set the thermostat to 0;
  • wait for the combustion to stop in the furnace (to speed it up, you can remove the coal from the combustion chamber, cover it with ash or sand);
  • open the cleaning holes with the combustion chamber.

All this will allow the boiler to cool down faster. If the system is installed correctly, nothing terrible will happen, so there is no need to panic.

Important! Some boilers do not provide for boiling water safety measures, but the system is sealed, and this situation can cause an accident. Boilers have been known to explode under the pressure of steam generated inside.

If a heating boiler that does not have automatic pressure relief channels is boiling, it is necessary to open the air valve on the radiator. This will prevent damage to system elements and pipe connections due to high pressure.

After determining why a solid fuel boiler is boiling, it is necessary to eliminate the fault. Until then, it should not be operated. What to do if the boiler boils? You can restore the system to operation using the following steps:

  1. Correct setting of the circulation pump.
  2. Stopping the pump and thus accelerating the movement of the coolant.
  3. Restoring normal water flow in all parts of the system.
  4. Installation of a thermal accumulator (TA).
  5. Identification and elimination of possible sources of airborne contamination.
  6. Installation of new batteries or additional radiator sections.

Knowing what to do if the boiler boils over will help prevent emergencies and prevent equipment failure. But there are also actions that are unacceptable in this situation. Do not fill the system with cold water and flood the boiler. This can lead to an explosion.

Heat accumulator for boiler boilover protection

Users who have encountered this problem at least once wonder what to do to prevent the boiler from boiling again. The best solution is to install a thermal management unit in the heating system. This will not only prevent troubles in the form of boiling of the coolant, but also reduce the frequency of fuel tossing.

How does it work? When you install a heat accumulator in the hydraulic circuit, the total amount of water increases. And to heat about 2000 liters of water, even the most powerful equipment will need a lot of time.

The circulation pump of the heating system requires a constant supply of electricity to operate. Even a short-term power outage can cause the boiler to boil if a thermal management device is not installed. In an emergency, the liquid tank will absorb excess heat and thus prevent boiling.

In addition, the heat accumulator accumulates thermal energy, reducing fuel consumption and extending the period between furnaces. TA is a complete solution that will make the operation of a solid fuel boiler safe, comfortable and more economical.

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