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flow check on water heater

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Robert O'Connor_12
Robert O'Connor_12 Member Posts: 728
in THE MAIN WALL
I recently installed a new AO SMITH HWH. They now give you dielectric nipples with little check valves (plastic flappers) why not see if you could get a couple of those?

Robert O'Connor/NJ

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  • Timco
    Timco Member Posts: 3,040


    My cold pipe gets hot after a few hours of sitting idle. (water heater) Has anyone put a flow check on theirs to prevent this heat loss? Also, anyone know where I can find the 'instant HW trick' that uses the 't' on the drain valve, etc...?

    Thanks,

    T
    Just a guy running some pipes.
  • Al Letellier_9
    Al Letellier_9 Member Posts: 929
    flo check

    You can put in a check valve to prevent heat migration up the cold water pipe, but you will need to add a potable water expansion tank to keep the boiler safety from popping off. Unless you are getting hot water at any cold water faucet, there is little to worry about. a simple heat trap, or a dip in the cold line, will stop the migration of heat.

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