Dual Water Heaters

Discussion in 'Water Heaters and Softeners' started by Lawren5, Jun 17, 2018.

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  1. Jun 17, 2018 #1

    Lawren5

    Lawren5

    Lawren5

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    My wife and I purchased a house that has two 80 gallon water heaters connected in series. The house isn't that big and it's just the two of us so we can easily get by with just one of the heaters. If I want to remove one of the heaters from the system, can I just turn off the power to it or do I need to rework the plumbing and bypass it?
     
  2. Jun 17, 2018 #2

    havasu

    havasu

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    If you take a picture of your setup, I'm sure one of us could quickly help you out to resolve your issue.
     
  3. Jun 17, 2018 #3

    frodo

    frodo

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    might be as simple as turning a valve

    post picture
     
  4. Jun 17, 2018 #4

    Lawren5

    Lawren5

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    Here's a photo of the setup. Cold water comes into the tank on the right and exits the left tank through a recirculating pump.


    IMG_2663.JPG
     
  5. Jun 17, 2018 #5

    Mr_David

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    Just unplug the right one. cold water coming in is still chlorinated so the tank will just cycle water through it.
    OR you could take the connector between the 2 heaters and connect the cold inlet on left heater directly to the cold suppl and bypass the right tank

    You should have a block valve some where under a remote sink for that recirc pump on the heater.
    It should use the cold supply as a return for the hot.Search for a grundfros COMFORT system for more info of ask here
     
  6. Jun 17, 2018 #6

    havasu

    havasu

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    I agree. By shutting down the first tank, it will temper the cold water to make it heat quicker, and also provides you another 80 gallons of drinking water in the event of a disaster.
     
  7. Jun 17, 2018 #7

    frodo

    frodo

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    man, What ever happen to pride in your work ?

    same thing, just different

    water_heaters.png
     
    Fmkehoe99 likes this.
  8. Jun 18, 2018 #8

    Lawren5

    Lawren5

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    Thanks to everyone for your comments. It looks like pulling the breaker on the right tank is the way to go.
    The recirc pump is a Watts unit which I only turn on when we have guest staying with us as the guest bath is on the opposite end of the house from the water heaters.
     
  9. Jun 18, 2018 #9

    TomFOhio

    TomFOhio

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    The relief lines can't be tied together. They must be ran separately like in Frodo's picture.
     

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