Glycol System Calculator
Calculate glycol requirements for freeze protection and system performance.
Glycol Freeze Points
| Concentration | PG Freeze | EG Freeze |
|---|---|---|
| 20% | 18F | 16F |
| 30% | 4F | -4F |
| 40% | -12F | -22F |
| 50% | -28F | -36F |
| 60% | -58F | -62F |
Guidelines
Burst Protection: 10-15F below freeze point
Max Concentration: 50% (higher = less efficient)
Inhibitors: Use pre-mixed with corrosion inhibitors
Testing: Check concentration annually