1. What is AC Tonnage per Square Foot?

AC tonnage per square foot is a rule of thumb for estimating the cooling capacity needed for a space. One ton of cooling equals 12,000 BTU per hour, and this calculation helps determine the appropriate size for an air conditioning system.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( Tons \) — Cooling capacity in tons
• \( Area \) — Area to be cooled in square feet

Explanation: The formula assumes that one ton of cooling capacity is needed for every 600 square feet of space, which is a general guideline for moderate climates.

3. Importance of Proper AC Sizing

Details: Properly sizing an AC unit is crucial for energy efficiency and comfort. An oversized unit will cycle on and off too frequently, while an undersized unit will run constantly and struggle to cool the space.

4. Using the Calculator

Tips: Enter the total area to be cooled in square feet. For more precise calculations, consider factors like insulation, ceiling height, window area, and local climate.

5. Frequently Asked Questions (FAQ)

Q1: Is 600 sq ft per ton always accurate?
A: No, this is a general guideline. Actual needs may vary from 400-800 sq ft per ton depending on climate, insulation, and other factors.

Q2: What if my home has high ceilings?
A: You may need additional capacity. Consider calculating by cubic feet rather than square feet in such cases.

Q3: Does this work for commercial spaces?
A: Commercial spaces often have different requirements due to higher occupancy and equipment heat loads. A professional load calculation is recommended.

Q4: What about very hot climates?
A: In hot climates (like desert areas), you may need more capacity (e.g., 500 sq ft per ton or less).

Q5: Should I get a slightly larger unit?
A: It's generally better to slightly undersize than oversize, as oversized units lead to humidity problems and inefficient operation.