How old is my Aire-Flo unit?
Aire-Flo is part of Lennox International (Allied Air Enterprises). 2 serial formats sourced across central air conditioner, heat pump, furnace.
Serial number decoder for Aire-Flo
Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.
Format example: 5899L17212
- Aire-Flo air conditioner serial numbers in the 1973 to present format encode the year as digits 3-4 (YY) and the month as letter at position 5 (A=Jan .. M=Dec, I skipped) (source: building-center.org).
- Example: serial 5899L17212 decodes to November 1999.
- Aire-Flo air conditioner serial numbers in the before 1972 format encode the year as digits 1-2 and the month as digit(s) 3(-4), 1-12 (source: building-center.org).
- Example: serial 6512 decodes to December 1965.
Decoder pages by product
Format eras
- 1973 to present VERIFIED
####A#####Central Air Conditioner, Heat Pump, Furnace, Packaged Unit - before 1972 VERIFIED
####Furnace, Central Air Conditioner
Official lookup: the authority
Open the official Lennox lookup takes serial (####A#####, A##A######, AA##A#####); returns Your Product's Coverage; URL verified live
This site is a reference built from published tables. The manufacturer's own lookup wins whenever the two disagree.
What we could not confirm
- Aire-Flo is treated as sharing Lennox's format because the source lists it in that family; the corporate relationship itself is an estimate.
- No official online lookup URL was verified for Aire-Flo.
- Building-center: 'Aire-Flo is a Lennox trade name for their economy line; serial numbers follow Lennox styles' (style 1 1606B13871 shown). aire-flo.com is an unrelated Columbus OH contractor; no official brand site or lookup found - use the Lennox lookup.