What Are SEER & EER Ratings? A Guide to AC Energy Efficiency Ratings If you skim through any AC listing, you’ll notice something called a SEER rating or EER rating. Sometimes, you’ll notice both. These numbers can play a big role in the AC shopping process. But what are SEER ratings, exactly? What do they mean? What is an EER rating and how is it different? Both of […] Read More of "What Are SEER & EER Ratings? A Guide to AC Energy Efficiency Ratings"