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  #1  
Old 12/27/09, 9:54 AM
Tim C. Howell Tim C. Howell is offline
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Default Rheem furnace age??

trying to figure a furnace age. model number got me to between 1996 - 2005.
ser #FD5D302F400006727. Need some help.
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  #2  
Old 12/27/09, 10:06 AM
Wayne B. Wilson, TN 439's Avatar
Wayne B. Wilson, TN 439 Wayne B. Wilson, TN 439 is online now
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Default Re: Rheem furnace age??

Before 1974 the first 2 digits indicated the year and the next digit the
month. Example: 732xxx = February 1973.
Since then, the age is coded into the last four digits of the serial number by week and
year.
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Old 12/27/09, 10:32 AM
Tim C. Howell Tim C. Howell is offline
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Default Re: Rheem furnace age??

Quote:
Originally Posted by wwilson3 View Post
Before 1974 the first 2 digits indicated the year and the next digit the
month. Example: 732xxx = February 1973.
Since then, the age is coded into the last four digits of the serial number by week and
year.
I know, but it don't fit Wayne
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Old 12/27/09, 10:39 AM
Wayne B. Wilson, TN 439's Avatar
Wayne B. Wilson, TN 439 Wayne B. Wilson, TN 439 is online now
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Default Re: Rheem furnace age??

2002
was there not a space somewhere there?
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  #5  
Old 12/27/09, 11:06 AM
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vhill vhill is offline
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Default Re: Rheem furnace age??

dont use model number use the serial number.




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Old 12/27/09, 12:04 PM
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John Bowman John Bowman is offline
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Default Re: Rheem furnace age??

Quote:
Originally Posted by thowell View Post
trying to figure a furnace age. model number got me to between 1996 - 2005.
ser #FD5D302F400006727. Need some help.
40th Week of 2000




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  #7  
Old 12/27/09, 1:28 PM
Tim C. Howell Tim C. Howell is offline
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Default Re: Rheem furnace age??

Quote:
Originally Posted by wwilson3 View Post
2002
was there not a space somewhere there?
40000 6727
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Old 12/27/09, 1:36 PM
Larry Kage, CMI Larry Kage, CMI is offline
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Default Re: Rheem furnace age??

Quote:
Originally Posted by jbowman View Post
40th Week of 2000
John has it correct...

1st two digits, after the "F", is the week and the 2nd two digits, after the "F", is the year.




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  #9  
Old 12/28/09, 5:15 PM
Tim C. Howell Tim C. Howell is offline
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Default Re: Rheem furnace age??

Quote:
Originally Posted by lkage View Post
John has it correct...

1st two digits, after the "F", is the week and the 2nd two digits, after the "F", is the year.
Thanks guys, was there a few years that the numbers were coded different?. This is what I got off the internet some time ago:
Rheem/Ruud: Before 1974 the first 2 digits indicated the year and the next digit the
month. Example: 732xxx = February 1973.
Since then, the age is coded into the last four digits of the serial number by week and
year. Therefore xxxx2302 = 23rd week of 2002.
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