About Heil
When you choose Heil® heating and cooling equipment, you’re choosing enhanced dependability and innovation in home comfort. We are proud to give you the latest in engineering and technology. Our products are designed to deliver the best in quality, energy efficiency and reliability, and each is 100% run tested. We take pride in surpassing your expectations and delivering quality you can feel.
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HVAC Age / Serial Decoder
Current Format
Current Format
Example Serial Number
C
Ignored
2
Year
5
Year
2
Week
1
Week
1
2
3
4
5
The second and third positions represent the year, the fourth and fifth represent the week. This would be the 21st week of 2025.
Previous Format
This format was used from 1980 to 1989.
New Variant
Example Serial Number
H
9
Year
3
Week
6
Week
1
2
3
4
5
H represents the 1980's. The first digit represents the year, the third and fourth represent the week. This would represent the 36th week in 1989.
Pre-1980 Format
This serial number format was known to be used prior to the 1980's. It can only tell you the year within a decade, but not the decade itself.
Pre-1980 Format
Example Serial Number
5
Year
1
2
3
4
5
This would represent 1965 or 1975, potentially earlier.
Contact Information for Heil
Email Addresses
No email addresses on file.
Websites
Addresses
Heil HVAC13995 Pasteur Boulevard
Palm Beach Gardens, Florida 33418
United States
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