1. What is the AC Tonnage Calculator?

The AC Tonnage Calculator estimates the required air conditioning capacity in tons based on square footage and BTU factor. It helps determine the appropriate AC unit size for optimal cooling efficiency.

2. How Does the Calculator Work?

The calculator uses the tonnage formula:

Where:

• \( Area \) — Area in square feet (sq ft)
• \( Factor \) — BTU per square foot (BTU/sq ft)
• 12000 — Conversion factor (1 ton = 12000 BTU/hour)

Explanation: The equation calculates the required cooling capacity by multiplying the area by the BTU factor per square foot, then converting to tons.

3. Importance of Tonnage Calculation

Details: Proper AC sizing is crucial for energy efficiency, comfort, and system longevity. Undersized units struggle to cool, while oversized units short cycle and waste energy.

4. Using the Calculator

Tips: Enter area in square feet and BTU factor per square foot. Typical factors range from 20-30 BTU/sq ft depending on climate, insulation, and other factors.

5. Frequently Asked Questions (FAQ)

Q1: What is a good BTU factor to use?
A: For moderate climates, use 20-25 BTU/sq ft. For hot climates or poor insulation, use 25-30 BTU/sq ft.

Q2: Why divide by 12000?
A: One ton of cooling equals 12,000 BTU per hour, so we divide total BTU requirement by 12,000 to get tons.

Q3: What are typical tonnage requirements?
A: Most homes require 1-5 tons of cooling capacity, depending on size and climate conditions.

Q4: Should I consider other factors besides area?
A: Yes. Ceiling height, insulation quality, window area, and local climate all affect cooling requirements.

Q5: Is this calculation accurate for all situations?
A: This provides a general estimate. For precise calculations, consult with an HVAC professional who can perform a Manual J calculation.