1. What is an AC Tonnage Calculator?

Definition: This calculator determines the required air conditioning capacity in tons based on cooling capacity in BTU/hr.

Purpose: It helps homeowners and HVAC professionals properly size air conditioning units for residential applications.

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/hr. The formula converts BTU rating to standard AC tonnage.

3. Importance of Proper AC Sizing

Details: Correct tonnage calculation ensures energy efficiency, proper cooling, and prevents premature system failure.

4. Using the Calculator

Tips: Enter the total cooling capacity needed for your space in BTU/hr. The calculator will convert to tons.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 12,000?
A: One ton of cooling capacity equals 12,000 BTU per hour, which is the standard measurement in the HVAC industry.

Q2: How do I determine my BTU requirements?
A: Use our BTU Calculator or consult an HVAC professional who can perform a Manual J calculation.

Q3: What's a typical tonnage for a house?
A: Most homes require 1-5 tons (12,000-60,000 BTU), depending on size, insulation, and climate.

Q4: Should I round up the tonnage?
A: Generally yes, but consult an HVAC professional as oversizing can be as problematic as undersizing.

Q5: Does this account for multiple zones?
A: No, this calculates total tonnage. Multi-zone systems require additional considerations.