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Sizing your hot water expansion tank? Maybe too small?

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cwilliams2000
cwilliams2000 Member Posts: 140
in THE MAIN WALL
I am trying to understand how to determine what size expanion tank you need. It seems that most install the 4.4g size but I see some that have the 8 gallon. Is this determined by size of the system, meaning total water volume? Thank you

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  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
    Yes total amount of water volume. Both manufacturers' websites have handy sizing charts, and apps

    There was an error rendering this rich post.

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 19,599
    Try googling "Amtrol Engineering Handbook"

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