Find the manufacture year of any Tempstar AC, heat pump, or furnace. Same serial format as all ICP brands.
Air ConditionerHeat PumpFurnace
Enter Serial Number
How to decode the serial number
Tempstar is manufactured by International Comfort Products (ICP) alongside Heil, Comfortmaker, and other ICP brands. All use the same year-week serial format.
2004 to Present
First two digits = year, next two = week.
1723A123456
Position
Meaning
Example
1–2
Year — 2017
17
3–4
Week — Week 23
23
5+
Sequence — Ignore
A123456
Where to find the serial number
Data plate on side panel of outdoor unit or inside furnace cabinet.
Decoded examples
2023A123456
→ Week 23, 2020
20 = 2020, 23 = week 23
Life expectancy
Expected lifespan: 15–18 years.
Common questions
Yes. Tempstar and Heil are both ICP brands made at the same factories by Carrier. Mechanically identical — different branding for different dealer channels.