Water Heater Tank Question

Discussion in 'Water Heater Forum, Tanks' started by cowboyjosh78, Dec 25, 2010.

  1. DonL

    DonL Jack of all trades Master of one

    Messages:
    4,333
    Location:
    Houston, TX

    I got that part.

    That is why I wanted eggs to go with my Spam.

    I did not see how this Forum was the best place to post a ad for HVAC.


    Thanks Terry, You are the best.
  2. Wallijonn

    Wallijonn Member

    Messages:
    147
    Location:
    Arizona
    Why isn't the ground wire also connected to the hot water side? If the loop is long enough it shouldn't transfer any heat to the cold pipe.
  3. Terry

    Terry Administrator Staff Member

    Messages:
    15,136
    Location:
    Bothell, Washington
    Often, the hot and cold are bonded to the panel at the water heater location.
    There is no worry about conducting heat there. It's more to do with grounding.
  4. Wallijonn

    Wallijonn Member

    Messages:
    147
    Location:
    Arizona
    I was thinking along the lines of,
    http://waterheatertimer.org/How-to-wire-water-heater-for-120-Volt.html

    http://waterheatertimer.org/pdf/water_pipe_grounding.pdf

    My problem is that I don't have a separate ground wire going to the cold water line (there's a copper jumper between cold and hot water pipes) and I don't have a lightening rod on the roof. (Most homes in Phoenix don't have them, just as most homes don't have gutters, and most homes have the AC on the roof. Weird, I know...) I figure the ground wire in the conduit wiring is being used to ground it. I hope there's no harm connecting the WH ground screw to the cold water pipe. (I work with electronics and fear ground loops.)

    ibid.

    Gutters and a lightening rod are on the schedule for the future. I have no trees near my house that can attract lightening...

    Now if I can only figure a way to install heat traps since my water pipes are right above the WH, so they go straight down to the WH inlet and outlet... Shark hoses aren't long enough, so I'll have to find flexible copper that is long enough. Heck, my WH doesn't even have an expansion tank...

    And yes, I will be replacing the WH circuit breaker with a new one when I install my WH this weekend.
    Last edited: Apr 24, 2014
  5. Wallijonn

    Wallijonn Member

    Messages:
    147
    Location:
    Arizona
    I found out that I do have a ground wire, it's just running along the cold water pipe, so I will be adding a grounding block to the cold water pipe, threading the ground wire through to the hot water grounding block and adding a grounding wire from the cold water grounding block to the WH ground stud.
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