Aire-flo® HVAC age
How to determine the date of production/manufacture or age of Aire-flo® 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: Lennox
Aire-Flo is a Lennox trade name for use on thier "economy" line of products. Air-Flo serial numbers will follow Lennox serial number styles.
Subsidiaries or other related brands: AirEase® | Airease-Johnson® | Aire-flo® | Allied-Commercial® | Armstrong Air® | Concord® | Ducane® | Lennox® | Magic-Pak®
Example serial number styles/formats found:
- Style 1: 1606B13871
Legend: Year is RED; Month is GREEN; Week is BLUE
Style 1: 1606B13871
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 position of the serial number (See Chart Below)


Aire-flo® History¹
- IN PROGRESS