Thanks Meathanman,
when you say wrong direction :? what do you mean, as when the guy that fitted the new rads - he only changed the rads, no new pipes were used.
Regards
Brian
:? Hi,
Can anyone suggest a solution, I have had some of the old radiators replaced with new. When the heating system is switched on the radiators start to make a loud ticking noise(this goes on until the system is switched off).