How old is my Tappan equipment?
Enter the serial number from the label. The date comes from Tappan's documented serial rules, not a guess.
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By equipment type
Tappan furnace age
Typical life: 15–20 years
Tappan air conditioner age
Typical life: 10–15 years
Tappan heat pump age
Typical life: 10–15 years
Questions
- How do I find the age of my Tappan equipment?
- Enter the serial number from the rating plate above. Tappan uses the Nordyne / Nortek family serial format, which includes the manufacture date.
Same serial format
Nordyne, Intertherm, Miller, Broan, NuTone, Medallion, GrandAire, Garrison, Frigidaire, Gibson, Kelvinator, Philco, Westinghouse, Maytag
Sources
- Nordyne warranty inquiry lookup (archived): Mfg. Date per serial, e.g. B6D130407356 = 4/10/2013
- Nortek Global HVAC literature library: “the 4th and 5th digits of your serial number indicate the year and the 6th and 7th digits indicate the month”
- Building-Intelligence Center: Nordyne HVAC age
Rules last reviewed 2026-09-30. These rules are in Beta while we verify more real-world examples, so results are capped at medium confidence.
Manufacture dates are decoded from manufacturer serial-number conventions and available documentation. Serial formats can change. Verify critical equipment information with the manufacturer when necessary.