hot water baseboard

Puzzled tech.

I have recently completed a hotwater baseboard installation. The customer is complaining of the noise when the units heat up. I have stopped by the job and removed the covers. Coverless the units are not making noise. Does anyone have an idea of how to stop this noise. Copper tube piping in the system and a operating water tempeature of 180 degrees.

Brad White_191

A couple of things

There are plastic cradles and sleeves to isolate the metal to metal contact, a prime spot to generate noise. Obviously your cover is playing a role.

Another thought which will have benefits far beyond the noise is to use outdoor reset. That will give a gradual change in water temperature and if used with constant circulation, the expansion in a given short time period will be almost imperceptible.

What you have now sounds like full-bore, full temperature hot water cycled via the circulator. Lots of expansion and contraction possibilities there.

mtfallsmikey

Also...

You can get isolation bushings to install where pipe penetrates the floor...another problem area.

tim smith

I agree with Brad, you need outdoor reset so your not

shocking the fin tube w/ 180 degree water and those dang aluminum fins like to make tinkling noises like mad at that temp. My guess is this is a multi zone system??? That is more likely where this problem occurs. Good luck, Tim