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Ticking rads when system start/stops any clues?

Jamie Hall
Jamie Hall Member Posts: 15,351
my friend -- the ticking is from the expansion and contraction either of the radiators themselves or the pipes leading to them. Sometimes you might be able to find a place where a pipe is actually contacting some wood (floor, beam, what have you) and maybe get a little space in there. Sometimes, with baseboards, there are spacers meant to let the element slide in the housing which are missing. etc. ...

Good luck
Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.
Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch

Comments

  • ross_21
    ross_21 Member Posts: 4


    my rads are ticking on start/stop how can this be resolved?
  • Brad White_184
    Brad White_184 Member Posts: 135
    However, Ross

    you can mitigate the ticking somewhat by installing outdoor reset (ODR) and using constant circulation. The wide swings in water temperature will be tempered a great deal and you will reap energy savings in the bargain.

    The use of on-off control is principal to the effect you are seeing, as Jamie pointed out.

    Do start by identifying any obvious "rubbing points" of course. There are also plastic sleeves, inserts and cradle seats. A bit of polyethylene such as a coffee can lid (as if anyone still buys canned coffee, especially in the UK), makes a nice slide insert in a pinch. Do try those things but keep going with ODR control for that and other reasons.

    Good Luck!
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