1. What is BTU to Tons Conversion?

The conversion between BTU/h (British Thermal Units per hour) and tons is used to determine the size of heating and air conditioning units. One ton of cooling capacity equals 12,000 BTU/h, which is the amount of heat needed to melt one ton of ice in 24 hours.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

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

Explanation: This conversion helps determine the appropriate size of HVAC equipment needed for a space based on its heat load.

3. Importance of Proper Sizing

Details: Properly sized HVAC equipment is crucial for energy efficiency, comfort, and system longevity. Oversized units cycle on and off too frequently, while undersized units run continuously and may not maintain desired temperatures.

4. Using the Calculator

Tips: Enter the total BTU/h requirement for your space. This can be calculated through a Manual J load calculation or obtained from an HVAC professional. The calculator will convert this to tons of cooling capacity.

5. Frequently Asked Questions (FAQ)

Q1: How many square feet will one ton cool?
A: Approximately 400-600 sq ft per ton in moderate climates, but this varies based on insulation, climate, and other factors.

Q2: What's the difference between BTU and tons?
A: Both measure cooling capacity, but tons are a larger unit (1 ton = 12,000 BTU/h). Tons are typically used for larger residential and commercial systems.

Q3: Should I round up when selecting unit size?
A: It's best to consult with an HVAC professional. Modern variable-speed systems can often handle fractional tonnage better than older systems.

Q4: What if my calculation results in 3.5 tons?
A: Many systems come in half-ton increments (2.0, 2.5, 3.0, etc.). Your HVAC contractor can help select the closest appropriate size.

Q5: Does this apply to heat pumps as well?
A: Yes, the tonnage rating applies to both air conditioners and heat pumps in cooling mode.