How to bleed your radiators

Is your house cold? You may need to bleed your radiators.

A build up of air in your radiators can lead to your heating system not working properly. Air trapped at the top of a radiator can stop hot water from rising up. This means that the radiator will be cold at the top so not very efficient. The technique of releasing the air from your radiators is called ‘bleeding’ you radiators.

Here is how to bleed your radiators:

  1. Turn off your central heating system.
  2. Get your radiator key and a towel.
  3. Place the key into the radiator valve at the top.
  4. Place the towel underneath the key to catch any drips.
  5. Turn the key in an anticlockwise direction. You will hear the sound of air hissing out of the valve. This means that the water is starting to raise up inside the radiator.
  6. When water starts dripping out of the valve, turn the key clockwise to seal the valve again. This means that the radiator is entirely full of water.
  7. Do this on all of your radiators.
  8. Your radiators have been bled.

Now you have a warm house.