# HEIL split sysstem age

**URL:** <https://forum.nachi.org/t/heil-split-sysstem-age/23676>\
**Category:** Inspecting HVAC Systems\
**Created:** [January 9, 2008, 8:07pm UTC](https://forum.nachi.org/t/heil-split-sysstem-age/23676 "2008-01-09T20:07:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![rchorey](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rchorey/32/981_2.png) [@rchorey](https://forum.nachi.org/u/rchorey)\
**Post date:** [January 9, 2008, 8:07pm UTC](https://forum.nachi.org/t/heil-split-sysstem-age/23676/1 "2008-01-09T20:07:01Z")

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Anyone know how to tell the age of HEIL and any other AC manufacturers equipment?

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**Author:** ![rstufflebeem](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rstufflebeem/32/190970_2.png) [@rstufflebeem](https://forum.nachi.org/u/rstufflebeem)\
**Post date:** [January 9, 2008, 9:46pm UTC](https://forum.nachi.org/t/heil-split-sysstem-age/23676/2 "2008-01-09T21:46:39Z")

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> [@rchorey](#):
>
> Anyone know how to tell the age of HEIL and any other AC manufacturers equipment?

Do you have CarsonDunlap Technical Reference Guide or Prestions Guide? They are very helpful.  
Randy

I think heil’s serial number is a letter then the next two digits is the age???

Do you have the model number?

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**Author:** ![rchorey](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rchorey/32/981_2.png) [@rchorey](https://forum.nachi.org/u/rchorey)\
**Post date:** [January 9, 2008, 9:50pm UTC](https://forum.nachi.org/t/heil-split-sysstem-age/23676/3 "2008-01-09T21:50:03Z")

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Thanks Randy,

I don’t have either of those documents. i guess I need to see about purchasing them.

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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 9, 2008, 10:35pm UTC](https://forum.nachi.org/t/heil-split-sysstem-age/23676/4 "2008-01-09T22:35:44Z")

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Here are some: [http://theloghomeinspector.com/?D=156](http://theloghomeinspector.com/?D=156)

Just saw them on Kentons site and it was easier. 😃

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**Author:** ![gporter](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/gporter/32/1274_2.png) [@gporter](https://forum.nachi.org/u/gporter)\
**Post date:** [January 20, 2008, 6:08am UTC](https://forum.nachi.org/t/heil-split-sysstem-age/23676/5 "2008-01-20T06:08:48Z")

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Good job kenton