1. What is Mini Split AC Tonnage?

Mini Split AC tonnage refers to the cooling capacity of a mini split air conditioning system, measured in tons. One ton of cooling equals 12,000 BTU per hour. Proper sizing is crucial for efficiency and performance.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Area \) — Area to be cooled in square feet
• \( 20 \) — BTU per square foot (standard estimate)
• \( 12000 \) — Conversion factor (BTU to tons)

Explanation: The formula estimates the required cooling capacity based on the area size and standard cooling requirements.

3. Importance of Proper Sizing

Details: Correct tonnage sizing ensures energy efficiency, proper dehumidification, and system longevity. Oversized units short-cycle, while undersized units run continuously.

4. Using the Calculator

Tips: Enter the area size in square feet. For irregular spaces, calculate total area. Consider additional factors like ceiling height, insulation, and sun exposure.

5. Frequently Asked Questions (FAQ)

Q1: What if my room has high ceilings?
A: For ceilings over 8 feet, multiply the result by 1.25. For very high ceilings, consult an HVAC professional.

Q2: Does this work for commercial spaces?
A: This calculator is designed for residential use. Commercial spaces require more complex calculations.

Q3: What about rooms with lots of windows?
A: Add 10-20% to the calculated tonnage for sun-facing rooms with large windows.

Q4: Is this accurate for all climates?
A: The 20 BTU/sq ft estimate works for most temperate climates. Hot climates may need 25-30 BTU/sq ft.

Q5: Should I round up the tonnage?
A: Mini splits come in specific sizes (0.75, 1, 1.5, 2 tons etc.). Round to the nearest available size, considering other factors.