DIY Doctor

Main navigation

Radiators Not Heating fully

Postby chrisjohnscott » Wed Nov 21, 2007 9:27 am

Recently made a pipe repair to my central heating system, using some Polypipe. When I turned on the heating once again, the ground floor radiators were fully heated but the two bedroom radiators are only up to temperature at the bottom third. The bathroom towl rail appears to be fully filled. With my limited knowledge I bled the two but no air at all came out or water for that matter!

I have a Worcester combi-boiler and no water tank, so the water only circulates on demand (I believe!).

Any advice most welcome....
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Wed Nov 21, 2007 9:22 am


Simply Build It

Postby marrtin » Wed Nov 21, 2007 3:12 pm

The fact that the radiators only get hot 1/3 up points to them not being full of water borne out by the fact you see no water from the bleed screw.

Sounds to me as if you have not re-pressurised the system properly since your repair. Make sure that there is between 1.0 and 1.5 bar in the system.

When that is so, bleed the rads again, and keep re-pressurising the system constantly as you go.
Rank: Foreman
Progress to next rank:
Posts: 374
Joined: Fri Oct 26, 2007 6:42 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics