How to Tell the Age of some Common Furnaces
|How to tell the age of some common furnaces is by the serial number
The 3rd and 4th numerical digit is most often the year it was built:
4006A17330 so the age would be 2006
W0K5896070 2nd and 4th digit are year built
Style 1: 7351 M2806 16735
Style 2: OR177 M2807 00097
Style 3: 0804B10488Red is year built
150945784520 1st and second digit are year built
Serial number is typically inside the front cover.
|How to tell the age of some Air Conditioners
Refer to notes above.
The manufactures use the same serial numbers to identify went the unit was built.
If you want a full list go to:
Building Intelligence Center