What is the SEER rating of an air conditioner?
SEER stands for “Seasonal Energy Efficiency Ratio”. It is a measure of the energy efficiency of cooling products, which allows consumers to compare operating costs of various cooling systems and products. SEER = [Cooling Output] / [Electrical Energy Input] for an entire cooling season. The thing to remember is that higher a SEER rating means greater efficiency (and therefore less cost to cool the building). Beyond the SEER rating, other factors affect the cost of cooling a building, such as building insulation, air leakage, room layout, quality of windows and adequacy of the duct system.