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 of cooling capacity. Proper sizing is crucial for efficiency and comfort.

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 requirement
• 12000 — Conversion factor (BTU to tons)

Explanation: The formula calculates the required cooling capacity based on the area of your home and standard cooling requirements.

3. Importance of Proper HVAC 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 accurate results, measure the conditioned space only (excluding garages, attics, etc.).

5. Frequently Asked Questions (FAQ)

Q1: Is this calculation accurate for all homes?
A: This provides a general estimate. Factors like insulation, climate, and window types affect actual requirements.

Q2: What if my home has high ceilings?
A: For ceilings over 8 feet, increase the area by 10-15% per additional foot of height.

Q3: How does climate affect tonnage?
A: Hotter climates may require 30-35 BTU/sq ft, while milder climates may need only 20 BTU/sq ft.

Q4: What's the typical tonnage for a home?
A: Average homes (1500-2000 sq ft) typically need 2.5-3.5 tons, but this varies by region and home characteristics.

Q5: Should I get a Manual J calculation?
A: For precise sizing, a professional Manual J load calculation is recommended before purchasing equipment.