Seasonal Energy Efficiency Ratio. The amount of cooling provided by a central air conditioner per unit of electricity purchased; SEER is tested over the entire cooling season, taking cycling into account. The higher the SEER number, the more efficient the air conditioner. SEER, in contrast to EER and COP, takes into account the efficiency losses resulting from system cycling.
The easonal nergy fficiency atio is a measure of the cooling efficiency of your air conditioner or heat pump. The higher the SEER number, the more efficient the system is at converting electricity into cooling power.
Seasonal Energy Efficiency Ratio. A calculated air-conditioning performance rating defined by the U.S.D.O.E. Air-conditioning Test Procedure and describing the seasonal performance of an air conditioner for a typical residential load. SEER is equal to the total annual cooling output in Btu divided by total electrical energy input in watt-hours.