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AC Size Formula:
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AC size calculation determines the appropriate air conditioning capacity needed for a space based on cooling requirements measured in BTU/h (British Thermal Units per hour). The result is expressed in tons of refrigeration, where 1 ton equals 12,000 BTU/h.
The calculator uses the simple formula:
Where:
Explanation: This formula converts cooling capacity from BTU/h to tons, which is the standard measurement for air conditioning system sizing.
Details: Proper AC sizing is crucial for energy efficiency, comfort, and system longevity. An undersized unit will struggle to cool the space, while an oversized unit will short cycle, reducing efficiency and failing to properly dehumidify.
Tips: Enter the total cooling requirement in BTU/h. The calculator will convert this value to tons of refrigeration, which is the standard unit for AC system sizing.
Q1: How do I determine the BTU requirement for my space?
A: BTU requirements depend on room size, insulation, windows, climate, and other factors. Professional load calculations are recommended for accurate sizing.
Q2: What's the difference between BTU and tons?
A: BTU measures cooling capacity per hour, while tons represent the total cooling capacity where 1 ton = 12,000 BTU/h.
Q3: What size AC do I need for a typical room?
A: A general rule is about 20 BTU per square foot, but this varies based on many factors including climate and insulation quality.
Q4: Can I use this calculation for central AC systems?
A: Yes, this conversion applies to all types of AC systems, though professional load calculation is recommended for central systems.
Q5: What happens if I choose the wrong AC size?
A: Incorrect sizing can lead to higher energy bills, reduced comfort, shorter equipment life, and inadequate humidity control.