One of my radiators is noticably cooler at the bottom than at the top. The other radiators are all working fine.

David, December 2006

This is probably due to sludge in the bottom of your radiator. Try taking it of the wall and flushing it out with a hose pipe. Then refix it to the wall and don't forget to bleed it or you could try turning off all the other radiators and turning the heating on and see if it gets hotter then the rest if not it needs flushing out.

mark, December 2006

that useally means the system has sludge build up in the bottom of your rad which intime will rust it. look in your f/e tank that can tell you alot about a system.

hi-spec plumbing, December 2006