1. What is the Ducted AC Size Calculator?

The Ducted Air Conditioner Size Calculator estimates the required cooling capacity (in tons) for a space based on its area. Proper sizing is crucial for efficiency and comfort.

2. How Does the Calculator Work?

The calculator uses the standard sizing formula:

Where:

• 25 — BTU per square foot (standard value)
• 12000 — Conversion factor (1 ton = 12,000 BTU/hr)

Explanation: The formula calculates the required cooling capacity by multiplying the area by standard BTU requirements and converting to tons.

3. Importance of Proper AC Sizing

Details: Correct AC sizing ensures energy efficiency, proper humidity control, and system longevity. Oversized units short-cycle, while undersized units run constantly.

4. Using the Calculator

Tips: Enter the total area to be cooled in square feet. For multiple rooms, use the combined area. Consider additional factors like ceiling height and insulation.

5. Frequently Asked Questions (FAQ)

Q1: What if my ceilings are higher than 8 feet?
A: Increase capacity by 10% for each additional foot of ceiling height beyond 8 feet.

Q2: Does this work for commercial spaces?
A: Commercial spaces may require different calculations due to higher occupancy and equipment heat loads.

Q3: What about climate zones?
A: Hotter climates may require 30-35 BTU/sq ft instead of 25. Adjust accordingly.

Q4: Should I round up the tonnage?
A: Generally round to the nearest half-ton, but consult with an HVAC professional.

Q5: What other factors affect AC sizing?
A: Insulation quality, window size/direction, local climate, and building materials all impact sizing.