Radiator question

[surfrider]

My central heating system is approximately 12 years old. When would you expect that the radiators should be changed. Does their efficiency reduce with time?

I know that there can be a build up of sludge. If this is flushed out will they be as good as new?

Cheers

 

[doitall]

Depends how they have been looked after, mine are 30 ish year old.

Inhibitor, will add years to the sytem in general not just the rads.

Drain the system into a bucket to catch any bits and you can tell how bad things are, is there any sign of rust or corrosion on the rads, stick a mirror up the back to look at the bottom edges etc.

flush it all out a few times, and re-fill, add inhibitor.

 

[surfrider]

Many thanks for your advice