![]() ![]() Air conditioners in northern climates will be required to have a minimum 13 SEER rating while equipment installed in southern climates must be at least 14 SEER. In 2015, the government will adopt a new regional approach to SEER rating standards. Therefore, a 16 SEER air conditioner is 37.5 percent more efficient than a 10 SEER unit. The energy consumption characteristics of two different air conditioners can be compared by dividing the difference between the SEER ratings by the larger SEER number.įor example: 16 (SEER) – 10 (SEER) = 6 / 16 = 37.5. Since the 82 degree outdoor temperature is unrealistic in many southern climates, homeowners are encouraged to ask for extended ratings data, which offers a much more accurate view of the unit’s capacity under actual conditions. SEER ratings are assigned to every unit produced so that consumers can determine the value of each product relative to cost and efficiency. Units are tested at a standard temperature of 82 degrees Fahrenheit outdoors and 80 degrees Fahrenheit dry bulb indoors. The Seasonal Energy Efficiency Ratio (SEER) replaced EER as the accepted method for calculating air conditioning efficiency. In 1978, Congress passed a law requiring certain appliances to be tested under conditions that included a number of seasonal variables that affect BTU capacity and energy consumption. A unit’s EER rating is determined by dividing its BTU output by the rated wattage input at specific temperature and humidity levels. ![]() The Energy Efficiency Ratio (EER) was introduced in 1975 as a rating mechanism for cooling units that operate according to the principles of the refrigeration cycle. A universal standard was developed by the Air Conditioning, Heating & Refrigeration Institute (AHRI) to provide a method for the direct comparison of different brands and models of AC equipment under laboratory conditions. Manufacturers continue add new features that help increase comfort levels and lower operating costs.Įnergy consumption for air conditioners is measured in both theoretical and practical terms. Central air conditioners are far more efficient than models installed just over a decade ago. ![]()
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