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Bleed a Radiator

How To Bleed Your Radiator

You will need

  • 1 Tea towel
  • 1 Radiator key

Turn off the heating

 

Ensure that the central heating is switched off before bleeding as this can introduce more air into the system.

Open valves

Ensure both valves at the bottom of the radiator are open.

 

 

 

 
Using the radiator key, insert it into the bleed screw at the top of the radiator.

 

 

Catch drips

  • Have some kitchen towel or cloth to catch any drips.
  • Slowly turn the key anti-clockwise. About half a turn. You should hear hissing. This is the air being forced out by the water.
  • As soon as the water squirts through the screw re tighten and ensure nothing is leaking.
  • Repeat on all radiators
  • Finally, you may need to top up the boiler if necessary.

 

 

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