1. What is HVAC Tonnage?

HVAC tonnage refers to the cooling capacity of an air conditioning system. One ton equals 12,000 BTU per hour. Proper sizing is crucial for efficiency and comfort in your home.

2. How Does the Calculator Work?

The calculator uses the standard HVAC sizing formula:

Where:

• \( Area \) — Total square footage of the space to be cooled
• 25 — Standard BTU per square foot (adjustable for climate)
• 12000 — Conversion factor (BTU to tons)

Explanation: This formula provides a basic estimate of the cooling capacity needed for a given space.

3. Importance of Proper Sizing

Details: Correct HVAC sizing ensures energy efficiency, proper humidity control, and system longevity. Oversized units short-cycle while undersized units run constantly.

4. Using the Calculator

Tips: Enter the total square footage of your home. For more accurate results, consider factors like ceiling height, insulation, and climate.

5. Frequently Asked Questions (FAQ)

Q1: What's the average tonnage for a house?
A: Typically 1 ton per 400-600 sq ft, but varies by climate and home characteristics.

Q2: How does climate affect tonnage requirements?
A: Hotter climates may need 30-40 BTU/sq ft, while moderate climates may only need 20 BTU/sq ft.

Q3: What other factors affect HVAC sizing?
A: Insulation quality, window types, ceiling height, sun exposure, and number of occupants.

Q4: Should I get a slightly larger unit?
A: No, oversizing can cause humidity problems and inefficient operation. Proper sizing is best.

Q5: Is this calculator suitable for commercial spaces?
A: No, commercial HVAC calculations are more complex and require professional assessment.