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Bouncing the coils?

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virginia714
virginia714 Member Posts: 1
in Domestic Hot Water
I had a oil company tech come in once, and he bounced the coils to get me more hot water. Had somethi g to do with turning hot water on and off at one of the faucets. Anyone here ever hear of this, and can I do it myself?

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  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,524
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    Never herd of that. Doubt it accomplished much.
  • JUGHNE
    JUGHNE Member Posts: 11,061
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    Hoping that water hammer would knock scale loose inside the coil???
  • ratio
    ratio Member Posts: 3,626
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    Did it work?
  • HVACNUT
    HVACNUT Member Posts: 5,835
    edited December 2018
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    Drop the pressure on the boiler.
    Close the cold to the coil.
    Open tub spout full hot.
    Percolate the boiler and coil.
    Quickly open and close the cold valve to bounce.
    Drain down boiler to remove deposits.

    Way back, before thermostatic mixing valves were common, we would pipe the cold with a globe between coil inlet and the mix tee with it's own globe.
    Boiler drain on the cold side and you could easily back flush the coil.

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