AIRCO® HVAC age
How to determine the date of production/manufacture or age of AIRCO® brand HVAC Systems.
The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from as little as 10 years to as many as 50 years depending on the type and quality of materials used in their manufacture. Routine upkeep/maintenance, regional weather/climate, and location/placement of the mechanical systems will all play critical roles in the longevity of these systems.
See also: Estimated Useful Service Life Expectancies
Parent Company: ECR
Subsidiaries or other related brands: AIRCO® | ARGO® | Dunkirk® | ECR® | EMI® | E-verter® | Olsen® | Oneida Royal® | Pennco® | RetroAire® | Ultimate® | Utica®
Example serial number styles/formats found:
- Style 1: 1207A012064
- Style 2: HTYL54759
Legend: Year is RED; Month is GREEN; Week is BLUE
Style 1: 1207A012064
Year of manufacture can be determined by using the 3rd & 4th positions of the serial number
Month of manufacture can be determined by using the 5th character of the serial number (See Chart Below)

Style 2: HTYL54759
Month of manufacture can be determined by using the 1st character of the serial number (See Chart Below)
Year of manufacture can be determined by using the 2nd character of the serial number (See Chart Below)

ECR Brands and Serial Number Styles
A quick reference guide published by ECR® that is included here for your convenience.

AIRCO® History¹
- IN PROGRESS