Professional HVAC Load Calculator
ACCAA Manual J Compliant System Sizing
About This Tool
This advanced calculator helps HVAC professionals determine:
- ✓ Precise heating/cooling loads (BTU/hr)
- ✓ Optimal equipment sizing
- ✓ Climate zone adjustments
- ✓ Insulation & occupancy factors
Based on ACCA Manual J 11th Edition standards with modern construction adjustments.
Cooling Load
0 BTU/hr
Heating Load
0 BTU/hr
Recommended Tonnage
0 Tons