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Thread: Furnace age

  1. #1
    Hans Duerichen's Avatar
    Hans Duerichen Guest

    Default Furnace age

    I need the manufactured date for my American Standard furnace model 70F2B serial D64 for my insurance co.

    Please help

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  2. #2
    Join Date
    Mar 2007
    Location
    Connecticut
    Posts
    1,828

    Default Re: Furnace age

    The first letter of the serial number gives the year of manufacture as follows:
    9=2009
    8=2008
    7=2007
    6=2006
    5=2005
    4=2004
    3=2003
    2=2002
    Z=2001
    R=2000
    P=1999
    N=1998
    M=97
    L=96
    K=95
    J=94
    H=93
    G=92
    F=91
    E=90
    D=89
    C=88
    B=87
    S=86
    Y=85
    X=84
    W=83
    U=82(seventh digit)
    T=81(seventh digit)
    O, A=80(seventh digit)


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