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Energy efficiency ratio (EER) - How To Discuss

Author

Olivia Zamora

Published May 04, 2026

Energy efficiency ratio (EER),

Definition of Energy efficiency ratio (EER):

  1. Measure of the relative (and not overall) efficiency of a cooling or heating appliance or equipment, expressed as the ratio of output, (in British thermal units or Btus) per hour to the energy consumed (in watts). See also coefficient of performance (COP) and energy factor (EF).

Meaning of Energy efficiency ratio (EER) & Energy efficiency ratio (EER) Definition