1. What is an Aircon Size Calculator?

Definition: This calculator estimates the required air conditioner horsepower (HP) based on room area and the unit's coefficient of performance (COP).

Purpose: It helps homeowners and HVAC professionals determine the appropriate air conditioner size for efficient cooling.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( HP \) — Required air conditioner horsepower
• \( A_{room} \) — Room area in square feet
• \( COP \) — Coefficient of performance (typically 3.5 for modern units)

Explanation: The formula converts room area into cooling capacity requirements, adjusted by the unit's efficiency.

3. Importance of Proper Aircon Sizing

Details: Correct sizing ensures energy efficiency, proper humidity control, and prevents short cycling or insufficient cooling.

4. Using the Calculator

Tips: Enter the room area in square feet and COP (default 3.5 for most modern units). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is COP in air conditioning?
A: COP (Coefficient of Performance) measures efficiency - higher values mean more cooling per unit of energy.

Q2: What's a typical COP value?
A: Modern units range from 3.0-5.0, with 3.5 being a good average for residential units.

Q3: How does room height affect the calculation?
A: This calculator assumes standard 8-9 ft ceilings. For higher ceilings, increase the area proportionally.

Q4: What about rooms with lots of windows or poor insulation?
A: Add 10-20% to the calculated HP for sun-facing rooms or poor insulation.

Q5: Can I use this for commercial spaces?
A: This is designed for residential use. Commercial spaces require more complex calculations.