manufacture or age of First Co.® HVAC Systems

How to determine the date of production/manufacture or age of First Co.® HVAC Systems.

This page was last updated 14 May 2013


The date of production/manufacture or age of  First Co.® HVAC equipment can be determined from the manufacture date coded in the serial number.



Style 1:  S05 A881350

Style 2:  F05 FC032358 927092

Inspection Tip!:  Date code (3 characters) commonly printed separately above the series number on data tag! See example photo below.




first co age



first co furnace age

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Thank you to Gary Tollberg of Guardian Home Inspections for assistance with age determination of this manufacturer.



Every effort is taken to offer you correct and concise information to assist  in determining the age or manufacture date of HVAC equipment.  Anytime anyone is dealing with numbers and letters in determining data, mistakes and misinterpretations are bound to happen.  For this reason if during your research you find that we may have erred please contact us.  In addition perhaps you have come across a brand, model or serial number format that we have not addressed.  Email us information or pictures of data/nomenclature plates of the unit and we will attempt to assist you in your determinations.  Email