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  1. #11
    Join Date
    Feb 2008
    Posts
    6

    Default Re: Expansion tank quick-fill knob - open or closed?

    Ugh, it's never good to hear that a system wasn't installed properly.

    The date stamp on the expansion tank suggests it's a little more than 6 years old (stamp says 11113701 - i'm guessing 11/01 as the date). At the least, it's been here since 2004 when we moved in.

    I'm doing another furnace run this morning. I'll list psi and water temp over a 90 min period.

    6:15am
    psi: 10
    water temp: 70 (or lowest setting)

    6:40am
    psi: 11
    water temp: 110

    7:00am
    psi:13
    water temp: 125

    I'll update until 8am.

    Updates

    7:20am
    psi:16
    Temp: 140

    7:40
    psi:18
    Temp: 150

    8:00
    psi: 19
    Temp: 155
    Last edited by jhgoldstj; 02-06-2008 at 08:04 AM. Reason: additions

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