1. What is Heat Load Calculation?

Heat load calculation determines the amount of heating or cooling required to maintain comfortable conditions in a space. It's essential for proper HVAC system sizing and energy efficiency.

2. How Does the Calculator Work?

The calculator uses the basic heat load formula:

Where:

• \( Area \) — Area of the space in square feet
• \( Factor \) — BTU per square foot from HVAC chart

Explanation: The calculation provides an estimate of the heat load based on standard factors that account for typical heat gain/loss in different types of spaces.

3. Importance of Heat Load Calculation

Details: Accurate heat load calculation ensures proper HVAC system sizing, prevents energy waste, maintains comfort, and extends equipment life.

4. Using the Calculator

Tips: Enter the area in square feet and select the appropriate factor from HVAC charts (typically 20-40 BTU/sq ft for residential spaces). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical factor for residential spaces?
A: For residential spaces, factors typically range from 20-40 BTU/sq ft depending on climate and insulation.

Q2: How does this differ from Manual J calculation?
A: This is a simplified method. Manual J considers more factors like windows, insulation, and orientation.

Q3: When should I use a higher factor?
A: Use higher factors for poorly insulated spaces, rooms with many windows, or in extreme climates.

Q4: What about cooling load?
A: The same principle applies, though cooling factors may differ slightly from heating factors.

Q5: Is this suitable for commercial spaces?
A: Commercial spaces often require more detailed calculations due to higher occupancy and equipment loads.