Cleaning heat exchangers

Discussion in 'Maintenance and Troubleshooting' started by JohnF, Jul 7, 2010.

  1. JohnF

    JohnF New Member

    New member here, long time geothermal heat pump owner, with a question on cleaning the heat exchangers.

    I have 2 FHP units with open loop, one well pump for the house water and heat pumps. The water here in NJ is very hard, and somewhat acidic, all water filtration/treatment is bypassed for the heat pumps. I realize the heat exchangers should be cleaned preriodically. Searching the web for a proper way of doing that brought me to this forum, but I still could not detailed info. I was planing on adding shutoff valves and hose bibs near the heat pumps, and hook up a small pump to circulate some cleaning agent thru the exchanger to remove the mineral buildup. Are there kits available for this? If not what should the cleaning solution be? Also my units are 15 years old, what is their typical life span?

    FWIW, I'm very happy with the geothermal heating and cooling, no major issues so far. :)

  2. Looby

    Looby Member Forum Leader

  3. JohnF

    JohnF New Member

    Thanks, that's exactly what I needed. Also searching this forum for 'acid flush' returns a lot of good info.


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