Radiators are not Getting Hot at the Top

If you find that the top half of a radiator is not as hot as the bottom, the cause is most likely to be trapped air in the heating system. This can be easily remedied by bleeding the air from the radiator.

Tools required: Radiator bleed key and an old towel or cloth.

First of all, turn off the central heating system, you will need a radiator air bleeding key, which are available at  DIY stores such as B & Q, Focus, etc and an old towel or absorbent cloth. Locate the air bleed valve at the top end of the radiator and hold the towel / cloth just beneath it.

Radiator air bleed valve

Radiator air bleed valve

SAFETY POINT – Any water that comes out of the bleed valve may be very hot, so take care to avoid being scalded.

Radiator air bleed key

Radiator air bleed key

Using the key turn the valve anticlockwise just enough to release the trapped air (a low hiss can usually be heard ) when water starts to dribble out of the valve close it tightly and wipe away any drips or runs of water from the radiator.

Switch the heating system on and check the radiator. If the radiator still feels cooler at the top repeat the procedure.

Incoming search terms:

  • top of radiator not getting hot
  • home radiator not getting hot
  • radiator not getting hot
  • top of radiator gets hot bottom does not
  • radiator not hot at top
  • radiators hot at bottom but not top
  • radiators at the top of the house not getting hot
  • radiators are not warm at the top
  • radiator will not heat at top
  • radiator top only getting hot
Share on Facebook2Tweet about this on Twitter2Share on Google+0Pin on Pinterest0Email this to someonePrint this page

Leave a Reply

Your email address will not be published. Required fields are marked *


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>