Elect. W/H Looped To Geothermal

Discussion in 'Water Heater Forum, Tanks' started by neolitic, Jan 16, 2010.

  1. neolitic

    neolitic Carpenter/Remodeler

    Joined:
    Apr 6, 2008
    Occupation:
    remodeling/carpentry
    Location:
    Beech Grove, In
    A good customer had a geothermal
    heat pump installed a couple years ago.
    I just noticed that they plumbed
    a loop to the electric water heater.
    They replaced the drain cock with a
    copper nipple when they looped in.
    Am I missing something,or isn't this
    setting up a situation for the early demise
    of the water heater?
    Looks like a brass nipple should have
    been used for this.

    Besides wanting to help out a good client,
    I just had the heater put in 3 years ago
    as part of a bath remodel I did for her
    and I'm not up for any problems for my
    warranty....especially since that plumber
    retired last year.
    TIA


    EDIT TO ADD:
    Geothermal guys are coming out next week.
    They already told the customer, over the phone
    that this dis-similar metals thing is an old wives tale,
    so some sort of citation from a recognized
    source would be nice if I'm right about this.
     
    Last edited: Jan 16, 2010
  2. neolitic

    neolitic Carpenter/Remodeler

    Joined:
    Apr 6, 2008
    Occupation:
    remodeling/carpentry
    Location:
    Beech Grove, In
    Just a bump.
     
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  4. Redwood

    Redwood Master Plumber

    Joined:
    Dec 15, 2007
    Occupation:
    Service Plumber
    Location:
    Connecticut
    Probably not if its a closed system.
     
  5. neolitic

    neolitic Carpenter/Remodeler

    Joined:
    Apr 6, 2008
    Occupation:
    remodeling/carpentry
    Location:
    Beech Grove, In
    Closed how?
    I think they're using the heat pump
    to pre heat for the W/H.
     
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