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7 Dec 2000 at 6:29 am
#289118
Harold Kestenholz
Participant
Tankless coils in some high-hardness areas do clog in a year. The tubing has to be disconnected to clean the tankless coil from the inside, so complete removal after draining the boiler by removing the six or eight nuts is just a step away. In that manner, both the inside and outside can be cleaned along with the inside of the boiler.