How to Calculate Cooling Load
What is Cooling Load?
Cooling Load Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.
Formula
Cooling Load = Solar Gain + Internal Heat + Infiltration + Transmission
Step-by-Step Guide
- 1Sum all heat sources: solar, people, equipment, infiltration, walls
- 2Apply the formula using your project measurements
- 3Add required safety factors or waste allowances per code
Worked Examples
Input
4000 BTU solar + 2000 people + 1500 equipment + 2500 transmission
Result
Total Cooling Load = 10,000 BTU/hr
Common Mistakes to Avoid
- ✕Not applying code-required safety factors or derating
- ✕Forgetting to account for waste and cut losses in material estimates
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