Cooling Load Guide
A short guide to simplified AC sizing for early design work.
What matters most
Cooling load is usually sensitive to solar gains, glazing ratio, orientation, building use, insulation, and the outdoor-to-indoor temperature difference.
Common mistakes
- Assuming a single cooling index works for every room.
- Ignoring west-facing solar exposure.
- Skipping the safety margin when selecting equipment.
When to use the calculator
Use it for early equipment sizing, bid-stage comparisons, or quick room-by-room checks.