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scale in tankless heating coil

Mike.C Member Posts: 43
Flush it out with vinegar. backflush also to loosen scales that form in one direction.


  • pghdan
    pghdan Member Posts: 1
    scale buildup in tankless coil

    Hi all,

    I have a tankless coil for domestic hot water as part of Burnham oil boiler that is clogged from hard water scale. I realize that the long term solution to this problem is a water softenning system. My question is what can I do to remove the scale buildup that is already present. Would an acid wash through the coil do the trick. If so what kind of acid and what strength. Or should I just look into replacing the coil with a new coil or maybe an indirect system.

    Thanks for any help.

  • gerry gill
    gerry gill Member Posts: 3,078
    Serving Cleveland's eastern suburbs from Cleveland Heights down to Cuyahoga Falls.

  • jim_57
    jim_57 Member Posts: 41

    After cleaning out the coil install a Cuno Scale Stopper in the cold water make up line. Replace the cartridge once a year. You'll never have the problem again.
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