1. What is Energy Efficiency Ratio?

The Energy Efficiency Ratio (EER) is a measure of how efficiently an air conditioning system operates. It represents the ratio of cooling capacity (in BTU/h) to power input (in watts) under specific test conditions.

2. How Does the Calculator Work?

The calculator uses the EER formula:

Where:

• \( Cooling\ Capacity \) — The amount of heat an air conditioner can remove (BTU/h)
• \( Power \) — Electrical power consumption (W)
• \( EER \) — Energy Efficiency Ratio (dimensionless)

Explanation: Higher EER values indicate better energy efficiency, meaning the system provides more cooling per unit of electricity consumed.

3. Importance of EER Calculation

Details: EER is crucial for comparing the energy efficiency of different air conditioning systems, helping consumers make informed purchasing decisions and estimate operating costs.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

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

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

Q3: Why is EER important for air conditioners?
A: Higher EER means lower electricity bills and reduced environmental impact. It helps consumers choose energy-efficient models that save money over time.

Q4: Can EER be used for all cooling systems?
A: EER is primarily used for room air conditioners and smaller systems. Larger central systems typically use SEER ratings for seasonal efficiency measurement.

Q5: How can I improve my AC's EER?
A: Regular maintenance, proper sizing, clean filters, and adequate insulation can help maintain optimal EER performance. Consider upgrading to a higher EER rated unit for significant improvements.