Cooling BTU per Square Foot Calculator

Cooling Load Formula:

\[ Q = A \times \text{BTU/ft}^2 \]

Cooling Load (BTU/h):

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1. What is a Cooling BTU per Square Foot Calculator?

Definition: This calculator estimates the cooling capacity needed for a space based on its area and cooling requirements per square foot.

Purpose: It helps HVAC professionals and homeowners determine the appropriate cooling capacity for rooms or buildings.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Q = A \times \text{BTU/ft}^2 \]

Where:

\( Q \) — Cooling load (BTU/h)
\( A \) — Area (square feet)
\( \text{BTU/ft}^2 \) — Cooling requirement per square foot (BTU/h·ft²)

Explanation: The area is multiplied by the cooling requirement per square foot to get the total cooling capacity needed.

3. Importance of Cooling Load Calculation

Details: Proper cooling load estimation ensures efficient HVAC system sizing, energy efficiency, and comfortable indoor temperatures.

4. Using the Calculator

Tips: Enter the area in square feet and cooling requirement per square foot (default 20 BTU/h·ft² for residential spaces). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical BTU/ft² value for residential spaces?
A: Typically 20 BTU/h·ft², but can range from 15-30 depending on insulation, climate, and other factors.

Q2: How does this differ for commercial spaces?
A: Commercial spaces often require 25-40 BTU/h·ft² due to higher occupancy and equipment heat loads.

Q3: What factors affect the BTU/ft² requirement?
A: Insulation quality, window area, ceiling height, occupancy, and heat-generating equipment.

Q4: Should I round up the calculated value?
A: Yes, HVAC units come in standard sizes, so round up to the nearest available unit size.

Q5: Does this include dehumidification needs?
A: The BTU/ft² value should account for both temperature control and dehumidification requirements.