AC Condenser Size Calculator

Room/Area in sq.ft:

Heat Load Factor (BTU/hr per sq.ft):

Efficiency Factor:

Calculate Download CSV Download PDF

Example Data Table

Area (sq.ft)	Heat Load Factor	Efficiency Factor	Condenser Size (BTU/hr)
500	30	1.1	16500
750	25	1.0	18750

Formula Used

Condenser Size (BTU/hr) = Area × Heat Load Factor × Efficiency Factor

How to Use This Calculator

• Enter the room or area in square feet.
• Input the heat load factor in BTU/hr per sq.ft.
• Provide the efficiency factor of your system.
• Press calculate to get required condenser size.
• Use CSV or PDF options to save results.

Understanding AC Condenser Sizing

Proper AC condenser sizing ensures optimal cooling and energy efficiency. An oversized unit wastes energy while undersized may not cool effectively. Using area, heat load, and efficiency factor provides accurate sizing. Always double-check with local HVAC guidelines.

FAQs

1. What is heat load factor?
It measures heat gain per square foot and affects required condenser capacity directly.

2. Can I use metric units?
Yes, convert square meters to sq.ft and kW to BTU/hr before entering values.

3. What is efficiency factor?
It accounts for system efficiency; less efficient units need higher capacity.

4. Why use area in calculation?
Larger areas require more cooling, hence condenser size increases proportionally.

5. Can multiple rooms be added?
Yes, sum their areas and average heat factors to get total required size.

6. How accurate is this calculator?
It gives a practical estimate; consult HVAC professionals for final sizing.

7. Why CSV and PDF export?
For record keeping, reporting, and sharing with installers or clients easily.

8. What if the result seems too high?
Check all inputs, heat load, and efficiency factor; adjust for realistic values.