1. What is HVAC Tonnage Calculation?

HVAC tonnage calculation determines the cooling capacity needed for a space. One ton of cooling equals 12,000 BTU per hour, which represents the amount of heat required to melt one ton of ice in 24 hours.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

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

Explanation: This calculation converts BTU measurement to standard HVAC tonnage for proper system sizing.

3. Importance of HVAC Sizing

Details: Proper HVAC sizing is crucial for energy efficiency, comfort, and system longevity. Oversized units short cycle, while undersized units struggle to maintain temperature.

4. Using the Calculator

Tips: Enter the total BTU value from your cooling load calculation. The result shows the required tonnage for your HVAC system.

5. Frequently Asked Questions (FAQ)

Q1: Why is 12,000 BTU equal to one ton?
A: This measurement originated from the amount of heat needed to melt one ton of ice in 24 hours, which equals 12,000 BTU per hour.

Q2: What's the typical tonnage for residential homes?
A: Most homes require 1-5 tons of cooling, depending on square footage, insulation, climate, and other factors.

Q3: How accurate is this calculation?
A: This provides basic tonnage conversion. Professional Manual J calculations consider more factors for precise sizing.

Q4: Can I use this for heat pump sizing?
A: Yes, the same tonnage calculation applies to heat pumps for cooling capacity.

Q5: What if my BTU value includes heating capacity?
A: This calculator is for cooling tonnage only. Heating requirements are calculated separately.