1. What is BTU of Heat per Sq Ft?

Definition: This calculator estimates the heat output in BTUs based on area and BTU per square foot requirements.

Purpose: It helps HVAC professionals and homeowners determine heating requirements for spaces.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

Explanation: The area is multiplied by the BTU requirement per square foot to get total heat output needed.

3. Importance of Heat Calculation

Details: Proper heat calculation ensures comfortable indoor temperatures, energy efficiency, and correct HVAC system sizing.

4. Using the Calculator

Tips: Enter the area in square feet and BTU requirement per square foot. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical BTU/ft² value?
A: Residential spaces typically need 20-30 BTU/ft², but this varies by climate and insulation.

Q2: How do I determine BTU/ft² for my space?
A: Consider factors like climate, insulation, ceiling height, and window area.

Q3: Does this include heat loss?
A: The BTU/ft² value should already account for expected heat loss in the space.

Q4: How does ceiling height affect this?
A: Higher ceilings may require increasing the BTU/ft² value to account for larger volume.

Q5: Is this for heating only?
A: Yes, this calculates heating requirements. Cooling calculations may use different values.