Cooling Capacity Formula:
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Definition: This calculator estimates the cooling capacity needed in BTUs per hour based on room area, cooling factor, and BTU requirements per square foot.
Purpose: It helps determine the appropriate air conditioner size for cooling a 200 square foot space or any other specified area.
The calculator uses the formula:
Where:
Explanation: The area is multiplied by the base BTU requirement and then adjusted for specific room factors.
Details: Accurate BTU calculation ensures efficient cooling, proper humidity control, and energy savings by avoiding oversized or undersized units.
Tips: Enter the area (default 200 ft²), BTU/ft² requirement (default 20), and adjustment factor (default 1.0). All values must be > 0.
Q1: What's the standard BTU/ft² for cooling?
A: Typically 20 BTU/ft², but this varies based on climate, insulation, and room characteristics.
Q2: When should I adjust the factor?
A: Increase for sunny rooms (1.1), very sunny (1.2), or kitchens (1.4). Decrease for shaded rooms (0.9).
Q3: How many BTUs for a 200 sq ft room?
A: Approximately 4,000-6,000 BTUs depending on conditions (using default values gives 4,000 BTUs).
Q4: Does this account for ceiling height?
A: Standard calculations assume 8-foot ceilings. For higher ceilings, increase the area proportionally.
Q5: What about multiple rooms?
A: Calculate each room separately or use the total area with appropriate adjustments for room types.