# Another furnace age!

**URL:** <https://forum.nachi.org/t/another-furnace-age/11696>\
**Category:** Inspecting HVAC Systems\
**Created:** [January 13, 2007, 4:09am UTC](https://forum.nachi.org/t/another-furnace-age/11696 "2007-01-13T04:09:23Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![pominspections](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/pominspections/32/2182_2.png) [@pominspections](https://forum.nachi.org/u/pominspections)\
**Post date:** [January 13, 2007, 4:09am UTC](https://forum.nachi.org/t/another-furnace-age/11696/1 "2007-01-13T04:09:23Z")

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Gotta buy the CD guide. Anyways here it is:

Goodman

Model CG80RB075P12A-1A

Serial 1606L13406

Anybody have an idea? I thought it was made by Armstrong, but the numbers just don’t jive.

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**Author:** ![lkage](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/lkage/32/347658_2.png) [@lkage](https://forum.nachi.org/u/lkage)\
**Post date:** [January 13, 2007, 2:06pm UTC](https://forum.nachi.org/t/another-furnace-age/11696/2 "2007-01-13T14:06:04Z")

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My info says the first 2 numbers in the serial # are the year, but I doubt it’s a '16, did you write it down wrong?

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**Author:** ![gbeaumont](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/gbeaumont/32/1094_2.png) [@gbeaumont](https://forum.nachi.org/u/gbeaumont)\
**Post date:** [January 13, 2007, 3:19pm UTC](https://forum.nachi.org/t/another-furnace-age/11696/3 "2007-01-13T15:19:21Z")

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Hi Jerry,

I can’t give you the definative answer, but it is most certainly an Armstrong unit, and the model number suggests a very recent one (post 2000).

Could it be as recent as the 16th week of 2006?

Regards

Gerry

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**Author:** ![pominspections](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/pominspections/32/2182_2.png) [@pominspections](https://forum.nachi.org/u/pominspections)\
**Post date:** [January 13, 2007, 9:44pm UTC](https://forum.nachi.org/t/another-furnace-age/11696/4 "2007-01-13T21:44:00Z")

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> [@lkage](#):
>
> My info says the first 2 numbers in the serial # are the year, but I doubt it’s a '16, did you write it down wrong?

Don’t think so, but I guess it is always possible. I should have checked it as I was back in the property today. I had the cover off again and did not think to verify it. It’s definitely a newer installation.