EER – You guessed it, it stands for energy efficiency ratio! This evaluates the operating efficiency of the unit. This is calculated by dividing output cooling energy by input electrical energy. SEER and EER are displayed on new units. To ensure your system runs as efficiently as it’s rated to, you must maintain your unit. Regular maintenance and filters changes are a must.Energy Star – This rating was created by the EPA (Environmental Protection Agency). It’s simply the energy efficiency rating of a product. A neutral 3rd party tests the system to ensure it meets a particular set of requirements.
Want to do further research about what those requirements are? Visit Energy Star for more information. (That’s a direct link to the program requirements.)
When shopping for your new unit, of course you want to make sure you are comparing apples to apples. This guide should help you be able to accomplish just that. As one would expect, the higher the SEER rating, the higher the cost of equipment. Be sure to keep in mind that you’ll save money in the long run by getting a higher SEER unit.