AC BTU per Square Feet

Cooling Load Formula:

\[ Q = A \times \text{BTU/ft}^2 \]

Cooling Load (BTU/h):

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1. What is AC BTU per Square Feet?

Definition: This calculator estimates the cooling load in BTU/h based on the area in square feet and the cooling requirement per square foot.

Purpose: It helps HVAC professionals and homeowners determine the appropriate air conditioning capacity needed for a space.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Q = A \times \text{BTU/ft}^2 \]

Where:

\( Q \) — Cooling load (BTU/h)
\( A \) — Area (square feet)
\( \text{BTU/ft}^2 \) — Cooling requirement per square foot (BTU/h·ft²)

Explanation: The area is multiplied by the cooling requirement per square foot to get the total cooling load.

3. Importance of Cooling Load Calculation

Details: Proper cooling load estimation ensures efficient AC operation, proper sizing of equipment, and energy savings.

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/ft² value?
A: Residential spaces typically need 20 BTU/h·ft², while commercial spaces may need 25-30 BTU/h·ft².

Q2: When would I use a higher BTU/ft² value?
A: Use higher values for sunny rooms, kitchens, or spaces with high heat-generating equipment.

Q3: Does this include other factors like insulation?
A: No, this is a basic calculation. For precise results, consider insulation, windows, and occupancy.

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

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