1. What is an Air Conditioning Tonnage Calculator?

Definition: This calculator converts cooling capacity in BTU/hr to air conditioning tonnage.

Purpose: It helps HVAC professionals and homeowners determine the appropriate AC unit size for their needs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( T \) — AC tonnage (tons)
• \( BTU \) — Cooling capacity (BTU per hour)

Explanation: One ton of cooling equals 12,000 BTU per hour. The formula converts BTU rating to standard tonnage.

3. Importance of Proper AC Sizing

Details: Correct tonnage calculation ensures energy efficiency, proper cooling, and prevents system overload or short cycling.

4. Using the Calculator

Tips: Enter the cooling capacity in BTU/hr (found on AC unit specifications). Value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why 12,000 BTU equals 1 ton?
A: This comes from the amount of heat needed to melt one ton of ice in 24 hours (288,000 BTU/24h = 12,000 BTU/h).

Q2: What's a typical tonnage for residential AC?
A: Most homes need 1-5 tons (12,000-60,000 BTU), depending on square footage and climate.

Q3: Should I round up the calculated tonnage?
A: Generally yes, as AC units come in standard sizes (1, 1.5, 2, 2.5, etc. tons).

Q4: How do I find my home's BTU requirements?
A: Use our BTU Calculator or consult an HVAC professional for a Manual J calculation.

Q5: Does this account for climate or insulation?
A: No, this is a basic conversion. Actual needs may vary based on environmental factors.