1. What is BTU to Tons Conversion?

The conversion between British Thermal Units per hour (BTU/h) and tons of refrigeration is essential for sizing air conditioning systems. One ton of cooling capacity equals 12,000 BTU/h.

2. How Does the Calculator Work?

The calculator uses the simple conversion formula:

Where:

• \( BTU/h \) — British Thermal Units per hour (cooling capacity)
• \( 12000 \) — Conversion factor (1 ton = 12,000 BTU/h)

Explanation: This calculation helps determine the equivalent cooling capacity in tons for a given BTU rating.

3. Importance of AC Unit Sizing

Details: Proper AC unit sizing is crucial for energy efficiency and comfort. A 2.5-ton unit is typically suitable for homes between 1,200-1,500 square feet, depending on climate and insulation.

4. Using the Calculator

Tips: Enter the BTU/h rating of your AC unit to find its equivalent in tons. For example, a 30,000 BTU/h unit equals 2.5 tons (30,000 ÷ 12,000 = 2.5).

5. Frequently Asked Questions (FAQ)

Q1: Why is 1 ton equal to 12,000 BTU/h?
A: This dates back to when cooling was measured by the amount of ice needed. One ton refers to the cooling effect of one ton of ice melting over 24 hours.

Q2: What size AC unit do I need for my home?
A: As a rough estimate, you need about 20 BTU per square foot. A 2.5-ton (30,000 BTU) unit typically cools 1,200-1,500 sq ft.

Q3: Can I use this for heat pumps?
A: Yes, the same conversion applies to heat pumps' cooling capacity.

Q4: What if my calculation doesn't match standard sizes?
A: AC units come in standard sizes (1.5, 2, 2.5, 3, 3.5, 4, 5 tons). Round to the nearest standard size when replacing a unit.

Q5: Is bigger always better for AC units?
A: No, oversized units cycle on/off too frequently, reducing efficiency and failing to properly dehumidify the air.