Cooling Tonnage Formula:
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Cooling tonnage is a measure of an air conditioning system's cooling capacity. One ton of cooling equals 12,000 BTU per hour. The rule of thumb is that one ton of air conditioning can cool about 600 square feet of space.
The calculator uses the simple formula:
Where:
Explanation: This provides a basic estimate of the cooling capacity needed for a given space.
Details: Proper sizing of air conditioning systems is crucial for energy efficiency, comfort, and equipment longevity. An undersized unit won't cool properly, while an oversized unit will short-cycle, reducing efficiency and comfort.
Tips: Enter the total area to be cooled in square feet. For more accurate results, consider factors like ceiling height, insulation, window area, and climate.
Q1: Is 600 sqft per ton always accurate?
A: This is a general rule. Actual needs vary based on insulation, windows, climate, and other factors.
Q2: What if my space has high ceilings?
A: For ceilings over 8 feet, you may need additional capacity. Calculate based on cubic feet rather than square feet.
Q3: How does climate affect this calculation?
A: Hotter climates may require more capacity (e.g., 500 sqft/ton), while milder climates may need less (e.g., 700 sqft/ton).
Q4: Should I round up the tonnage?
A: Generally yes, but consult with an HVAC professional for precise sizing.
Q5: What about heat load calculations?
A: For precise sizing, a Manual J heat load calculation should be performed by a professional.