How does coolant bleed easily before winter? It is necessary to save

Written by hana

One of the basic recommendations that must be on it is to cleanse it. We explain why and how to do it right.


Coolant – Source: spm

Here’s why radiators bleed every year before using them

Radiators must be at full power to cope with the cold, but before turning them on, it is necessary to go through the disinfection phase.

By bleeding the radiators, we will make them last longer and work optimally. Bleeding radiators is essential for one main reason, which is to take advantage of the coolant’s heat as much as possible.

Improving the performance of the radiators is the main reason for performing this purge. Once turned on, the heaters shouldn’t let us down, so they’ll be working at full power. A highly recommended option is to prepare it with a good cleaning, in this way we make sure that it does not accumulate any impurities that can affect the surrounding air.

The coolant bleed also helps prevent it from collapsing with all the damage it can cause. Indeed, coolant that has not been drained for a long time can begin to leak. This flowing water can damage floors, especially if it’s carpet or parquet. Finally, take note Refrigerant purge also makes it possible to control energy consumption (avoiding excessive consumption) Benefit from more efficient heating (better heat distribution)

coolant is bleeding

Coolant Bleeding – Source: spm

How do radiators bleed?

Turn on the heating

Turn on the heating and wait for all the heating appliances in your home to heat up (how long may depend on how many radiators you have and the size of your home, so be sure to give yourself plenty of time).

Select the radiators that should bleed

Carefully check each coolant to ensure that the temperature is uniform across its entire surface. If you detect cold radiators at the top or hear a noise, this means that there is air trapped inside and you need to bleed it.

Tip: We recommend wearing a pair of thin gloves to check each radiator as it can be hot.

Turn off the heating and wait for the radiators to cool down.

Before you begin to bleed the radiators, we recommend that you turn off the heating so that the radiators are not too hot to touch.

Place a rag under the coolant bleed valve.

Locate the radiator bleed valve and be sure to place an old rag or towel under the valve to catch any water that might leak.

Tip: Every coolant has a bleed valve. It is usually located in the upper corner of the radiator and looks like a round hole with a square in it.

Open the valve and release the air

If water or air does not come out while the coolant is draining, the valve may be blocked by paint. Close the inlet and outlet valves at each end of the radiator, and then remove the screw in the center of the purge valve. Insert the coolant wrench into the purge valve and slowly turn it counterclockwise (a quarter of a turn should be enough). You should hear a whistling as the air escapes.

Tip: We recommend having a bucket on hand to catch any flowing water, in case the valve is open too often.

Close the valve

When the hissing stops and the water begins to flow, turn the knob clockwise to close the valve.

Check boiler pressure

Repeat this process for each coolant you need to disinfect in your home. Once this is complete, you will need to check the pressure on the water pressure gauge in the boiler.

If the boiler pressure is too low (less than 1 bar), the system must be re-pressurized. If the pressure is normal (between 1 and 2 bar), you can turn on the heating and check that your radiators are now heating up as they should.

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