cooling Calculator Scenario

Quick Cooling Load Estimation

While Manual J provides accurate calculations, BTU/sq ft estimates are useful for preliminary sizing and budget planning.

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Key Considerations

  • 1Rule of thumb: 20-40 BTU/sq ft depending on climate
  • 2Hot climates: 25-35 BTU/sq ft
  • 3Mild climates: 15-25 BTU/sq ft
  • 4Add 10% for poor insulation or many windows

Applicable Standards

ASHRAE Manual J

Scenario Parameters

room Length
15
room Width
10
room Height
3
occupancy
20
lighting Load
15
equipment Load
20

Need different values? Start with this scenario and adjust as needed.

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