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AC Tonnage Calculator Per Square Foot

AC Tonnage Formula:

\[ \text{Tonnage (tons)} = \frac{\text{Square Footage (sqft)}}{600} \]

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1. What is AC Tonnage Calculation?

AC tonnage calculation determines the cooling capacity needed for a space based on its square footage. One ton of cooling equals 12,000 BTU per hour.

2. How Does the Calculator Work?

The calculator uses the standard formula:

\[ \text{Tonnage} = \frac{\text{Square Footage}}{600} \]

Where:

Explanation: The formula provides a basic estimate of required cooling capacity based on space size.

3. Importance of Proper AC Sizing

Details: Proper AC sizing is crucial for energy efficiency, comfort, and equipment longevity. Oversized units short-cycle, while undersized units run constantly.

4. Using the Calculator

Tips: Enter the total square footage of the space to be cooled. For more accurate results, consider factors like insulation, ceiling height, and climate.

5. Frequently Asked Questions (FAQ)

Q1: Is 600 sqft per ton always accurate?
A: This is a general rule. Hot climates may need 500 sqft/ton, while mild climates might use 700 sqft/ton.

Q2: What other factors affect AC sizing?
A: Insulation quality, window size/direction, ceiling height, occupancy, and heat-producing appliances all impact requirements.

Q3: What if my home has multiple floors?
A: Calculate each floor separately and consider a zoned system for multi-story homes.

Q4: Should I round up the tonnage?
A: It's better to consult an HVAC professional rather than simply rounding up, as modern systems have more precise capacity options.

Q5: How does this relate to SEER ratings?
A: Tonnage measures capacity, while SEER measures efficiency. Both are important when selecting an AC system.

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