1. What Is Energy Efficiency Rating?

Energy Efficiency Rating (EER) is a ratio that measures the cooling capacity of an air conditioning unit relative to the power input. It indicates how efficiently the unit converts electrical energy into cooling power, with higher values representing better energy efficiency.

2. How Does The Calculator Work?

The calculator uses the EER formula:

Where:

• \( Cooling\ Capacity \) — Measured in British Thermal Units per hour (BTU/h)
• \( Power\ Input \) — Measured in Watts (W)

Explanation: The equation calculates how many BTUs of cooling are produced per watt of electrical energy consumed, providing a standardized measure of energy efficiency for cooling systems.

3. Importance Of EER Calculation

Details: EER calculation is crucial for evaluating air conditioning efficiency, comparing different models, estimating energy consumption, and making informed purchasing decisions. Higher EER ratings typically indicate better energy efficiency and lower operating costs.

4. Using The Calculator

Tips: Enter cooling capacity in BTU/h and power input in watts. Both values must be positive numbers. The calculator will compute the EER ratio in BTU/Wh.

5. Frequently Asked Questions (FAQ)

Q1: What is a good EER rating for air conditioners?
A: Generally, EER ratings of 10 or higher are considered good, with higher values indicating better efficiency. Modern high-efficiency units can reach EER ratings of 12-14 or more.

Q2: How does EER differ from SEER?
A: EER measures efficiency at a specific temperature (usually 95°F), while SEER (Seasonal Energy Efficiency Ratio) measures efficiency over an entire cooling season with varying temperatures.

Q3: Why is EER important in the Philippines?
A: In tropical climates like the Philippines with high cooling demands, EER helps consumers choose energy-efficient units that can significantly reduce electricity bills and environmental impact.

Q4: Can EER be used for all types of cooling systems?
A: EER is primarily used for room air conditioners and smaller cooling systems. Larger systems may use different efficiency metrics, though the basic principle remains similar.

Q5: How often should EER be calculated?
A: EER is typically calculated during product testing and certification. Consumers should refer to manufacturer specifications, though the calculator can help verify or compare efficiency ratings.