Islandaire® HVAC age
How to determine the date of production/manufacture or age of Islandaire® 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: Islandaire
Subsidiaries or other related brands:
Example serial number styles/formats found:
- Style 1: MU297542360X
Legend: Year is RED; Month is GREEN; Week is BLUE
Style 1: MU297542360X
Year of manufacture can be determined by using the 2nd position (letter) of the serial number (see chart)
Month of manufacture can be determined by using the 1st position (letter) of the serial number (see chart)

Islandaire® History¹
- 1992 - Founded in 1992 by Robert Hansen to manufacturer replacement thru-wall systems for rapidly growing list of defunct brands.
- 2005 - Fedders purchases 80% controlling interest in Islandaire, and creates subsidiary Fedders Islandaire Inc.
- 2008 - Fedders files bankruptcy - after approval of the US Bankruptcy Court overseeing Fedders' Chapter 11 proceedings, Fedders completed the sale of its Fedders Islandaire Inc. subsidiary in January of 2008 back to Robert E. Hansen Jr., president of Islandaire.
¹Excerpts from various industry sources
