# Difference Between EER and SEER

• Post category:Technology

## Definition of EER and SEER

Energy Efficiency Ratio (EER) is a metric used to measure the cooling efficiency of air conditioning systems. It is defined as the ratio of the cooling capacity (in BTUs) of an air conditioner to the power input (in watts) required to run the unit, under specific conditions (generally 95°F outdoor temperature and a 2.5°F indoor temperature split).

Seasonal Energy Efficiency Ratio (SEER) is a measure of the average energy efficiency of an air conditioning system over a typical cooling season. It takes into account fluctuations in temperature and outdoor conditions and provides a more comprehensive picture of a system’s energy efficiency compared to EER, which is a single-point measurement. SEER is calculated by dividing the total cooling output of an air conditioner over a season by the total energy consumption during the same period.

## Energy Efficiency Ratio (EER)

Energy Efficiency Ratio (EER) is a metric used to measure the cooling efficiency of air conditioning systems. It represents the ratio of the cooling capacity of an air conditioner to the power input required to run the unit, under specific conditions. The EER is calculated by dividing the output cooling capacity of an air conditioner (measured in BTUs) by the power input required (measured in watts), under standard conditions, typically 95°F outdoor temperature and a 2.5°F indoor temperature split.

The EER is an important metric in evaluating the performance of air conditioning systems, as it provides a snapshot of the unit’s efficiency at a specific set of conditions. This can help individuals and organizations make informed decisions about energy efficiency when purchasing or operating air conditioning systems.

It is important to note that the EER provides a single-point measurement and does not take into account fluctuations in temperature and outdoor conditions. For this reason, the Seasonal Energy Efficiency Ratio (SEER) is considered to be a more comprehensive measure of an air conditioner’s energy efficiency.

## Seasonal Energy Efficiency Ratio (SEER)

Seasonal Energy Efficiency Ratio (SEER) is a metric used to measure the average energy efficiency of an air conditioning system over a typical cooling season. It takes into account fluctuations in temperature and outdoor conditions and provides a more comprehensive picture of a system’s energy efficiency compared to Energy Efficiency Ratio (EER), which is a single-point measurement.

SEER is calculated by dividing the total cooling output of an air conditioner over a season by the total energy consumption during the same period. The SEER rating is typically expressed as a number between 8 and 20, with higher numbers indicating greater energy efficiency.

SEER is an important metric in evaluating the performance of air conditioning systems, as it provides a more comprehensive picture of a system’s energy efficiency. This information can help individuals and organizations make informed decisions about energy efficiency when purchasing or operating air conditioning systems, as well as take advantage of government incentives and tax credits for energy-efficient equipment.

Choosing air conditioning systems with high SEER ratings can result in significant cost savings over time, as well as help reduce greenhouse gas emissions and contribute to a more sustainable future.

## Differences between EER and SEER

Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER) are both metrics used to measure the efficiency of air conditioning systems, but there are several key differences between the two:

1. Single-point vs. Average Measurement: EER provides a single-point measurement of an air conditioner’s efficiency at specific conditions, while SEER provides an average measurement of the unit’s efficiency over a typical cooling season, taking into account fluctuations in temperature and outdoor conditions.
2. Conditions: EER is calculated under specific conditions, typically 95°F outdoor temperature and a 2.5°F indoor temperature split, while SEER takes into account the varying conditions of a typical cooling season.
3. Inclusiveness: EER provides a snapshot of an air conditioner’s efficiency at specific conditions, while SEER provides a more comprehensive picture of a system’s energy efficiency over a typical cooling season.
4. Utility: EER is often used as a point of comparison between different air conditioning systems, while SEER is used to evaluate the average energy efficiency of a specific air conditioning system over a typical cooling season.

EER provides a single-point measurement of an air conditioner’s efficiency, while SEER provides a more comprehensive average measurement that takes into account fluctuations in temperature and outdoor conditions. Both metrics are important in evaluating the performance of air conditioning systems, but SEER provides a more complete picture of a system’s energy efficiency.

### Conclusion

Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER) are important metrics used to evaluate the efficiency of air conditioning systems. EER provides a single-point measurement of an air conditioner’s efficiency at specific conditions, while SEER provides a more comprehensive average measurement that takes into account fluctuations in temperature and outdoor conditions over a typical cooling season.

Understanding the difference between EER and SEER is important in making informed decisions about energy efficiency and air conditioning systems, as well as taking advantage of government incentives and tax credits for energy-efficient equipment. Choosing air conditioning systems with high SEER ratings can result in significant cost savings over time and contribute to a more sustainable future.

EER and SEER provide valuable information about the efficiency of air conditioning systems and can help individuals and organizations make informed decisions about energy efficiency.

### Reference website

You can reference the following website for further information on the difference between EER and SEER:

1. Energy.gov: “Seasonal Energy Efficiency Ratio (SEER)” – https://www.energy.gov/energysaver/seasonal-energy-efficiency-ratio-seer
2. Department of Energy: “Efficiency for Cooling Equipment” – https://www.energy.gov/energysaver/efficiency-cooling-equipment
3. US Department of Energy: “EER and SEER Ratings” – https://www.energy.gov/energysaver/eer-and-seer-ratings
4. American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE): “Efficiency Terminology for Room Air Conditioners” – https://www.ashrae.org/technical-resources/standards-research–technology/standards-addenda/addenda-to-ashrae-standards/162-2013-addenda-3-efficiency-terminology-for-room-air-conditioners

These resources are reliable sources of information on the difference between EER and SEER and can provide additional insights and information on the topic.