1. What is HVAC Tonnage?

HVAC tonnage refers to the cooling capacity of an air conditioning system. One ton equals 12,000 BTU per hour. Proper sizing is crucial for efficiency and comfort in your space.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Area \) — Square footage of the space to be cooled
• \( Regional\ Factor \) — BTU per square foot based on climate
• \( 12000 \) — Conversion factor (BTU to tons)

Explanation: The calculation accounts for both the size of your space and the climate conditions in your region.

3. Importance of Proper Sizing

Details: Correct HVAC sizing ensures energy efficiency, proper humidity control, and system longevity. Oversized units cycle too frequently while undersized units run constantly.

4. Using the Calculator

Tips: Measure your space accurately and select the regional factor that matches your climate. Hot climates require more cooling capacity per square foot than moderate or cold climates.

5. Frequently Asked Questions (FAQ)

Q1: What if my space has high ceilings?
A: For ceilings over 8 feet, multiply the area by (ceiling height ÷ 8) before using the calculator.

Q2: Should I round up the tonnage?
A: HVAC systems come in standard sizes (1.5, 2, 2.5, 3, etc. tons). Round to the nearest half-ton, but consult an HVAC professional for final sizing.

Q3: What about windows and insulation?
A: This calculator provides a basic estimate. Poor insulation or many windows may require adjustments - add 10-20% for poor insulation or many windows.

Q4: What's the difference between BTU and tons?
A: 1 ton of cooling equals 12,000 BTU per hour. The term originates from the amount of heat needed to melt one ton of ice in 24 hours.

Q5: Can I use this for heat pump sizing?
A: Yes, the same tonnage calculation applies to heat pumps in cooling mode. Heating requirements may differ based on climate.