1. What is a Cooling BTU per Square Foot Calculator?

Definition: This calculator estimates the cooling capacity needed for a space based on its area and the required BTU per square foot.

Purpose: It helps HVAC professionals and homeowners determine the appropriate cooling capacity for rooms or buildings.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Cooling load (BTU/h)
• \( A \) — Area (square feet)
• \( BTU/ft² \) — Cooling requirement per square foot (BTU/h·ft²)

Explanation: The area is multiplied by the cooling requirement per square foot to determine the total cooling capacity needed.

3. Importance of Cooling Load Calculation

Details: Proper cooling load estimation ensures efficient HVAC system sizing, energy efficiency, and comfortable indoor temperatures.

4. Using the Calculator

Tips: Enter the area in square feet and BTU per square foot (default 20 BTU/h·ft² for residential spaces). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical BTU per square foot value?
A: For residential spaces, 20 BTU/h·ft² is common, but this can vary (15-30 BTU/h·ft²) based on insulation, climate, and other factors.

Q2: How does ceiling height affect the calculation?
A: This simple calculator assumes standard 8-9 ft ceilings. For higher ceilings, multiply the area by the height ratio.

Q3: What other factors affect cooling load?
A: Windows, insulation, occupancy, appliances, and sunlight exposure all impact cooling requirements.

Q4: How do I convert BTU/h to tons of cooling?
A: 12,000 BTU/h = 1 ton of cooling. Divide your result by 12,000 to get tons.

Q5: Should I round up the calculated value?
A: Yes, it's recommended to round up to the nearest standard HVAC unit size for best performance.