1. What is a BTU to Tons Cooling Calculator?

Definition: This calculator converts cooling capacity from British Thermal Units per hour (BTU/h) to tons of refrigeration.

Purpose: It helps HVAC professionals and engineers convert between these common units of cooling capacity measurement.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \text{Tons} \) — Cooling capacity in tons
• \( \text{BTU} \) — Cooling capacity in British Thermal Units per hour

Explanation: One ton of refrigeration equals 12,000 BTU per hour, which is the amount of heat needed to melt one ton of ice in 24 hours.

3. Importance of BTU to Tons Conversion

Details: This conversion is essential for sizing air conditioning systems, comparing cooling capacities, and ensuring proper equipment selection.

4. Using the Calculator

Tips: Simply enter the BTU value (must be > 0) and the calculator will automatically compute the equivalent tons of cooling.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 12,000?
A: This comes from the historical definition of one ton of refrigeration being equal to the heat absorption of one ton of ice melting over 24 hours (12,000 BTU/h).

Q2: Is this calculation the same for heating?
A: No, this conversion is specific to cooling capacity. Heating systems typically use different measurements.

Q3: What's a typical residential AC capacity?
A: Most homes have systems between 1.5 to 5 tons (18,000 to 60,000 BTU/h), depending on size and climate.

Q4: How do I find the BTU rating of my AC unit?
A: Check the manufacturer's plate on the unit or the model number (often contains the BTU rating).

Q5: Does this account for efficiency ratings?
A: No, this is a direct capacity conversion. Efficiency (SEER/EER) affects energy use, not capacity conversion.