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recirc by gravity

Mike T., Swampeast MO
Mike T., Swampeast MO Member Posts: 6,928
in THE MAIN WALL
Yes, you should install a check valve, but you need to drill a 1/8" or so hole in the check.

The piping arrangement you describe sounds very similar to a "heat trap" used to prevent gravity circulation.

Comments

  • Dan C._4
    Dan C._4 Member Posts: 70
    recirc

    If I have a recirc line with no circulator on it, do I need to install a check valve? Also if The hot water main goes across the basement cieling then down about three feet into a manifold and then back up acrooss the cieling, is it even possible to do without a pump? Thanks.
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