An Objective and Dependable Standard for Comparing Heating and Cooling Systems

In the simplest terms, the higher the SEER value of a heating and cooling system, the more efficient and more cost-effective the system is. Many older systems still in use have SEERs of 6 or below, whereas by 1994, the average SEER for all units shipped by manufacturers in the U.S. improved to 10.61 for central air conditioners and 10.94 for central heat pumps.

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