What does EER mean? Should I spend more money for a higher EER unit?
EER stands for energy efficiency ratio. The higher the EER rating, the more energy efficient the equipment is. This can result in lower energy costs. The following US Dept. of Energy Web site can show how to calculate potential energy cost savings of a more efficient unit -www1.eere.energy.gov/consumer/calculators/homes.html. The Air-Conditioning and Refrigeration Institute (ARI.org) posts a Certified Ratings directory, which lists EER ratings of various air- conditioning equipment.
