1. What is AC Tonnage?

AC tonnage refers to the cooling capacity of an air conditioning system. One ton of cooling equals 12,000 BTU (British Thermal Units) per hour. This measurement originated from the amount of heat needed to melt one ton of ice in 24 hours.

2. How Does the Calculator Work?

The calculator uses the AC tonnage formula:

Where:

• \( Tons \) — Cooling capacity in tons
• \( BTU/h \) — British Thermal Units per hour

Explanation: The formula converts BTU per hour (a measure of heat removal) into tons of cooling capacity.

3. Importance of Proper AC Sizing

Details: Correct AC tonnage is crucial for energy efficiency and comfort. An undersized unit won't cool properly, while an oversized unit will short-cycle, reducing efficiency and humidity control.

4. Using the Calculator

Tips: Enter the BTU/h rating of your air conditioning system. The calculator will convert it to tons. Common residential units range from 1.5 to 5 tons.

5. Frequently Asked Questions (FAQ)

Q1: How many square feet will 1 ton cool?
A: Approximately 400-600 sq ft, depending on climate, insulation, and other factors.

Q2: What's the difference between BTU and tonnage?
A: They're different units for the same thing - 1 ton = 12,000 BTU/h.

Q3: How do I find my AC's BTU rating?
A: Check the model number or nameplate on the outdoor unit, or consult the manufacturer's specifications.

Q4: What's a SEER rating?
A: Seasonal Energy Efficiency Ratio - measures cooling output divided by energy input. Higher SEER means greater efficiency.

Q5: Can I use this for heat pumps?
A: Yes, the calculation works the same for heat pumps in cooling mode.