# Help with GE Furnace age

**URL:** <https://forum.nachi.org/t/help-with-ge-furnace-age/32446>\
**Category:** Inspecting HVAC Systems\
**Created:** [October 3, 2008, 3:38am UTC](https://forum.nachi.org/t/help-with-ge-furnace-age/32446 "2008-10-03T03:38:32Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![jhanna1](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/jhanna1/32/2034_2.png) [@jhanna1](https://forum.nachi.org/u/jhanna1)\
**Post date:** [October 3, 2008, 3:38am UTC](https://forum.nachi.org/t/help-with-ge-furnace-age/32446/1 "2008-10-03T03:38:32Z")

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Inspected a GE furnace and Heat pump yesterday and could not figure the exact date of manufacture. Thank’s in advance for any help.  
Here is the model and serial# for the furnace:  
Model: BLU055F924B1  
Serial#: 526707 T14

Heat pump Model# is: BWB724A100A  
Serial#: could not determine

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**Author:** ![rharrington](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rharrington/32/1467_2.png) [@rharrington](https://forum.nachi.org/u/rharrington)\
**Post date:** [October 6, 2008, 2:06am UTC](https://forum.nachi.org/t/help-with-ge-furnace-age/32446/2 "2008-10-06T02:06:34Z")

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James,

I could not find that model number under GE. I found it under TRANE made in 1984 1985 and 1987. You didn’t say if the furnace was gas or electric and I searched in Preston Guide where you find GAS appliances only.

the Heat Pump is coming up manufactured in 1981 and 1982.

That is as near as I could find.

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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:** [October 6, 2008, 12:09pm UTC](https://forum.nachi.org/t/help-with-ge-furnace-age/32446/3 "2008-10-06T12:09:36Z")

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Hi James,

I have Prestons on CD rom and they list that model furnace as being by GE in 1981.

Regards

Gerry

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**Author:** ![jhanna1](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/jhanna1/32/2034_2.png) [@jhanna1](https://forum.nachi.org/u/jhanna1)\
**Post date:** [October 6, 2008, 9:54pm UTC](https://forum.nachi.org/t/help-with-ge-furnace-age/32446/4 "2008-10-06T21:54:04Z")

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Thank you Rick and Gerry for taking the time to get the info for me.

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**Author:** ![dblecha](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/dblecha/32/239985_2.png) [@dblecha](https://forum.nachi.org/u/dblecha)\
**Post date:** [October 7, 2010, 2:08am UTC](https://forum.nachi.org/t/help-with-ge-furnace-age/32446/5 "2010-10-07T02:08:23Z")

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I am looking for an age on a General Electric Commercial unit.  
From what I could read on the deteriorating ID tag was

Model: BTC060D300131  
Serial: 483546T41

If anyone has any information on the age of this unit, it would greatly help.

Thanks  
Daniel

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**Author:** ![wwilson3](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/wwilson3/32/58197_2.png) [@wwilson3](https://forum.nachi.org/u/wwilson3)\
**Post date:** [October 7, 2010, 11:52pm UTC](https://forum.nachi.org/t/help-with-ge-furnace-age/32446/6 "2010-10-07T23:52:05Z")

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General Electric  
Capacity: Last three digits of model number indicate approximate rating in 1000s of Btus  
Example: 21TC030A = 2.5 ton  
Age: Last three digits of serial number indicate date of manufacture, where the first digit  
indicates the year and the second and third indicate the week  
Example: xxxxxx241 = 41st week of 1982  
This all i could find hope it helps

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**Author:** ![dbowers](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/dbowers/32/59651_2.png) [@dbowers](https://forum.nachi.org/u/dbowers)\
**Post date:** [October 8, 2010, 5:04am UTC](https://forum.nachi.org/t/help-with-ge-furnace-age/32446/7 "2010-10-08T05:04:59Z")

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Daniel look in your Preston Guide; you Carrier Blue Book; or your ???

If you don’t have one - buy one.

Also a little research will probably tell you GE quit making under their name and switched to Trane between 1981-1984.

So you immediately know your unit is Approx 25-30 Yrs old

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**Author:** ![slemarr](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/slemarr/32/183363_2.png) [@slemarr](https://forum.nachi.org/u/slemarr)\
**Post date:** [October 11, 2010, 8:54pm UTC](https://forum.nachi.org/t/help-with-ge-furnace-age/32446/8 "2010-10-11T20:54:22Z")

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See [http://inspectapedia.com/heat/Furnace\_Age.pdf](http://inspectapedia.com/heat/Furnace_Age.pdf)
