Heil HVAC Age Lookup by Serial Number
Decode your Heil serial number to find the manufacturing date, system age, and maintenance recommendations. Free and instant. No account needed.
Finding Your Heil Serial Number
Check these four spots on your HVAC system
Common Locations
What to Look For
- White or metallic manufacturer sticker
- Labeled "Serial No." or "S/N"
- Typically 8–12 characters long
- Usually near the model number
Can't find it? Try the electrical access panel on the front of the outdoor unit or inside the air handler cabinet.
Serial Number Examples
Don't worry if yours looks different — each brand has multiple formats and our system can decode most variations.
About Heil HVAC Systems
Heil is ICP's original flagship brand. The company started in Milwaukee in 1928 making boilers before expanding into forced-air systems. Today Heil is one of the more widely installed residential HVAC brands in the country, sold exclusively through ICP's contractor network. ICP is now part of Carrier Global. The equipment behind the Heil, Tempstar, Arcoaire, Comfortmaker, and other ICP names is built in the same factories. Serial numbers across all ICP brands decode the same way: the two-digit year is in positions 2 and 3, and the manufacturing week is in positions 4 and 5.
Supported Brands
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