Definition of energy efficiency ratio in English:

Share this entry

energy efficiency ratio

(abbreviation EER)


The ratio of a heating or cooling system’s output, per hour, in British thermal units to the input in watts, used to measure the system’s efficiency.
Example sentences
  • The Energy Efficient Ratio (EER) rating measures the air conditioner's efficiency during the hottest days of the summer.

For editors and proofreaders

Syllabification: en·er·gy ef·fi·cien·cy ra·ti·o

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.