Heil Gas FurnaceHow to Decode
Heil HVAC manufactures reliable and affordable heating and cooling equipment backed by strong warranties.
Decode Your Unit NowHeil Gas Furnace — Type
Brand
Heil
Equipment Type
Gas Furnace
SEER Range
80-98 AFUE
Expected Lifespan
15-30 years
Serial Format
Year-Week (YYWW)
Warranty
10-year limited parts
Current Refrigerant
R-410A / R-32
Headquarters
Lewisburg, TN
Heil Serial Number Decoding Table
Example
E2234567890
| Positions | Field | Value | Meaning |
|---|---|---|---|
| 1 | Plant identifier | E | Lewisburg, TN plant |
| 2-3 | Year of manufacture | 22 | 2022 |
| 4-5 | Week of manufacture | 34 | Week 34 (August) |
| 6-11 | Sequential number | 567890 | Production sequence |
Heil Model Number Decoding Table
Example
HCA636GKA
| Positions | Field | Value | Meaning |
|---|---|---|---|
| 1-3 | Product series | HCA | QuietComfort AC |
| 4-6 | Capacity (00s BTU) | 636 | 63,600 BTU (5.3 tons) |
| 7-9 | Configuration | GKA | R-410A, standard config |
Heil Gas Furnace -- Overview
Heil manufactures a comprehensive lineup of gas furnace models ranging from entry-level to premium high-efficiency units. With SEER ratings spanning 80-98 AFUE, Heil offers options for every budget. These units are backed by 10-year limited parts.
The typical lifespan is approximately 15-30 years with regular maintenance. Our decoder tool can instantly tell you the exact age and condition of your unit.
How to Decode Your Heil Gas Furnace Serial Number
Every Heil HVAC unit has a unique serial number that encodes critical information about the unit. Heil uses a Year-Week (YYWW) format, where specific characters represent the manufacturing date, production facility, and unit sequence number.
For example, the serial number "E2234567890" can be decoded as follows: the first characters indicate the manufacturing date, while subsequent digits identify the production line and unit number. Our free decoder tool automatically parses this format and reveals the complete manufacturing history.
Maintenance Schedule for Heil Gas Furnace
Replace or clean air filters: Every 1-3 months. Clean condenser coils: Annually (spring). Check refrigerant levels: Annually. Inspect electrical connections: Annually. Clean evaporator drain line: Every 6 months. Test thermostat calibration: Annually. Inspect ductwork for leaks: Every 2-3 years.
Heil Gas Furnace Efficiency Over Time
Heil has continuously improved efficiency to meet evolving federal standards. In 2006, the minimum was raised to SEER 13. In 2015, southern states moved to SEER 14. In 2023, new SEER2 standards took effect: 14.3 SEER2 (South), 13.4 SEER2 (North). Modern Heil models range from 14 to 26+ SEER.
Regarding refrigerants: Heil units before 2010 likely use R-22 (phased out since 2020 -- expensive and harmful). Units from 2010-2023 use R-410A. Newest models use R-32 or R-454B to meet EPA regulations. Knowing your refrigerant is critical -- R-22 refills cost $100-200+ per pound.
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Decode Your Unit NowFAQ
How do I find the age of my Heil HVAC unit?
Enter your Heil serial number into our free decoder. Heil uses a Year-Week (YYWW) format. We parse it instantly and calculate the exact age, plus a condition status.
Is Heil a good HVAC brand?
Heil is one of the most established manufacturers, founded in 1962 with over 64 years of experience. They offer 10-year limited parts and consistently rank among top brands.
What does a Heil serial number look like?
Heil serial numbers follow a Year-Week (YYWW) format. Example: "E2234567890". Find it on the metal data plate on the unit.
How long is the Heil warranty?
Heil typically offers 10-year limited parts on residential equipment when properly registered.