Convectors are Noisy!!

MissButters

Our house has one pipe steam and a mix of traditional cast iron radiators and cast iron convectors.  Our radiators and pipes are quiet; however, the convectors on the first floor clank loudly as they heat up.  My husband tried to tilt them back slightly but that made no difference. Is it just the convectors making sound as they heat up and expand?  Would replacing them with new convectors fix the issue, or is there a way to fix this?  

EBEBRATT-Ed

Sounds like expansion noise

I only have three ideas

Use adjustable air vents on the convestors and set them to vent a little slower.

If their are supports under the convector fins see if you can slide a piece of plastic in their (like a cut up milk bottle) to quiet things down

Check to see if the pipe coming through the floor has a large enough hole around it

EdTheHeaterMan

Not enough information to answer that one. Pictures may help. Also the piping approaching the convectors may have settled over time and there may be condensed water trapped in the pipes. So just pitching the convestor may not be enough. you may need to raise both sides of the convector to put the proper pitch back into the pipe

bburd

This is an installation issue, probably related to piping or convector pitch. The convectors themselves are almost certainly not at fault. 

retiredguy

A picture of the cast iron convectors would help and a better explanation of the whole system is needed.