Cooling Load Calculator — Calculate Your HVAC Requirements

Cooling Load Calculator

Calculate the cooling load for your space. Understand how room size, insulation, climate, and building materials affect your HVAC requirements.

Step 1: Room Details

9 ft
4

Understanding Room Dimensions

Larger rooms require more cooling capacity. Ceiling height affects the total volume of air that needs to be cooled. Proper insulation reduces cooling load significantly.

Step 2: Environmental Factors

72°F

About Environmental Factors

Climate affects the external heat load. Windows contribute significantly to heat gain. Appliances and occupants generate internal heat that must be removed by the cooling system.

Cooling Load Results

Summary
Equipment Comparison
Load Analysis

Total Cooling Load Required

12,500 BTU/h
Recommended: 1.5 Ton AC Unit
Sensible Heat Load
8,400 BTU/h
Latent Heat Load
4,100 BTU/h
Area per Ton
133 sq ft/ton
Airflow Required
525 CFM

HVAC Equipment Comparison

AC Type Capacity Estimated Cost Efficiency Best For

Cooling Load Analysis

Cooling Load Formula

Total Load = Sensible Load + Latent Load

Sensible heat changes temperature. Latent heat changes humidity. The total cooling load is the sum of all heat gains from walls, windows, occupants, appliances, and infiltration.

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