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 Carrier Comfort-Aire Lennox Trane Payne Keeprite Heil Bryant Armstrong YORK Luxaire W0K5896070 2nd and 4th digit are year built Rheem/Ruud Style 1: 7351 M2806 16735 Style 2: OR177 M2807 00097 Style 3: 0804B10488Red is year built Goodman 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 |
