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What are EER and COP?

By Kyle Rafter - May 01, 2025

Energy Efficiency Ratio (EER) for cooling, and Co-efficient of Performance (COP) for heating, are ratios calculated using the input power usage and output capacity of an air conditioner. The higher the EER and COP's are, the more efficient the air conditioner is.

Kyle Rafter
General Manager, Product & Strategy at GENERAL Australia & New Zealand

Kyle has over 16 years experience within the air conditioning industry. Since joining GENERAL (formerly Fujitsu General) in 2015, Kyle has driven innovation and growth, leveraging his expertise in commercial business development. Passionate about cutting-edge technology, Kyle is dedicated to advancing sustainable solutions in the air conditioning sector.

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