BTU Calculation Formula:
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BTU (British Thermal Unit) calculation for air conditioners determines the cooling capacity needed for a space. The formula converts tons of cooling capacity to BTU per hour, which is the standard measurement for air conditioner sizing.
The calculator uses the BTU conversion formula:
Where:
Explanation: One ton of cooling capacity equals 12,000 BTU per hour, which represents the amount of heat required to melt one ton of ice in 24 hours.
Details: Accurate BTU calculation is crucial for proper air conditioner sizing. Undersized units won't cool effectively, while oversized units cycle too frequently, reducing efficiency and comfort.
Tips: Enter the tons of cooling capacity. The calculator will instantly convert to BTU per hour. Ensure the tonnage value is positive and realistic for residential or commercial applications.
Q1: Why is 1 ton equal to 12,000 BTU?
A: This historical measurement comes from the amount of heat required to melt one ton (2000 pounds) of ice in 24 hours, which equals 12,000 BTU per hour.
Q2: How do I determine the right tonnage for my space?
A: Generally, you need about 20 BTU per square foot, but factors like ceiling height, insulation, windows, and climate affect the calculation.
Q3: What's the difference between BTU and tons?
A: BTU measures cooling capacity per hour, while tons represent the same capacity in different units (1 ton = 12,000 BTU/h).
Q4: Can I use this for heat pumps as well?
A: Yes, the same conversion applies to heat pumps since they use similar cooling capacity measurements.
Q5: What are common residential AC sizes?
A: Common sizes range from 1.5 tons (18,000 BTU) for small apartments to 5 tons (60,000 BTU) for large homes.