Hydronic Baseboard Return Tubing Expansion Noise

Discussion in 'Boiler Forum' started by healeymp0, Nov 5, 2017.

  1. healeymp0

    healeymp0 New Member

    Joined:
    Nov 5, 2017
    Location:
    Maine
    My upstairs zone is one long continuous above-floor run. It has 3/4" copper return tubing resting on return tubing brackets above the fins. When the return tubing heats or cools it causes the brackets to "ping" a little bit as the friction between the return tubing and the brackets is finally overwhelmed by the tension of the expansion/contraction of the tubing. The front covers are attached to these same brackets, and these "pings" get transferred to the covers and cause them to make noise.

    I doubt I am the first person to experience this problem. Does anyone know of a good remedy?
     
  2. jac04

    jac04 Member

    Joined:
    Dec 11, 2013
    Location:
    Connecticut
    I have used all sorts of tricks to eliminate the expansion clicks & pings you are talking about. Typically, I'll place a shim between the pipe and whatever it is resting on. Right now I'm using a mix of thin cardboard, pipe insulation, and UHMW plastic sheet.
     
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  4. healeymp0

    healeymp0 New Member

    Joined:
    Nov 5, 2017
    Location:
    Maine
    Thanks for the advice, I'll try that!
     

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