1. What Is Energy Efficiency Ratio?

Energy Efficiency Ratio (EER) is a measure of how efficiently a cooling system operates when the outdoor temperature is at a specific level. It's calculated by dividing the cooling capacity (in BTU/h) by the power input (in watts).

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 EER represents the ratio of cooling output to energy input, with higher values indicating better energy efficiency.

3. Importance Of EER Calculation

Details: EER is crucial for evaluating the energy efficiency of air conditioning systems, helping consumers choose more efficient units that save energy and reduce operating costs.

4. Using The Calculator

Tips: Enter the cooling capacity in BTU/h and power input in watts. Both values must be greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is a good EER rating?
A: Generally, an EER of 10 or higher is considered good, with higher values indicating better efficiency. The most efficient systems can have EER ratings 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: When is EER typically used?
A: EER is commonly used for rating room air conditioners and other small cooling systems, while SEER is more commonly used for central air conditioning systems.

Q4: Are there limitations to EER?
A: EER only measures efficiency at one specific operating condition and doesn't account for variations in temperature and humidity throughout a season.

Q5: How can I improve my system's EER?
A: Regular maintenance, proper sizing, clean filters, and adequate insulation can help maintain or improve your system's efficiency.