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How To Calculate SEER From EER

SEER Calculation Formula:

\[ SEER \approx EER \times 0.875 \]

BTU/Wh

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1. What Is SEER And EER?

SEER (Seasonal Energy Efficiency Ratio) and EER (Energy Efficiency Ratio) are measures of air conditioning efficiency. SEER represents seasonal average efficiency while EER measures efficiency at a specific temperature (usually 95°F).

2. How Does The Calculator Work?

The calculator uses the approximation formula:

\[ SEER \approx EER \times 0.875 \]

Where:

Explanation: This formula approximates SEER from EER by accounting for seasonal variations in efficiency performance.

3. Importance Of SEER Calculation

Details: Understanding the relationship between SEER and EER helps in comparing air conditioning efficiency ratings and making informed purchasing decisions for energy-efficient cooling systems.

4. Using The Calculator

Tips: Enter EER value in BTU/Wh. The value must be greater than 0. The calculator will provide the approximate SEER value based on the standard conversion factor.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a conversion factor between SEER and EER?
A: SEER accounts for seasonal variations and part-load operation, while EER measures efficiency at peak conditions, requiring a conversion factor for comparison.

Q2: How accurate is the 0.875 conversion factor?
A: This is an approximation. Actual conversion may vary slightly depending on specific equipment and operating conditions.

Q3: What are typical SEER and EER values?
A: Modern air conditioners typically have SEER ratings from 14-25 and EER ratings from 11.5-14. Higher values indicate better efficiency.

Q4: When should I use SEER vs EER?
A: Use SEER for overall seasonal efficiency comparison and EER for peak cooling performance assessment in hot climates.

Q5: Are there limitations to this conversion?
A: This is an approximation and may not be precise for all equipment types or under all operating conditions.

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