AC Tonnage Formula:
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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.
The calculator uses the standard formula:
Where:
Explanation: The formula provides a basic estimate of required cooling capacity based on space size.
Details: Proper AC sizing is crucial for energy efficiency, comfort, and equipment longevity. Oversized units short-cycle, while undersized units run constantly.
Tips: Enter the total square footage of the space to be cooled. For more accurate results, consider factors like insulation, ceiling height, and climate.
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.