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Air Conditioner EER Chart 2026: Guide With Calculator EER (Energy Efficiency Ratio) measures how efficiently an air conditioner converts electrical power into cooling power under specific test conditions The EER calculation is straightforward: divide the BTU (British Thermal Units) of cooling output by the watts of electrical power consumed
What Is Energy Efficiency Ratio? EER Ratings Explained The Energy Efficiency Ratio (EER) is a standardized measurement of how efficiently an air conditioner converts electricity into cooling power It’s calculated by dividing a unit’s cooling capacity in BTU per hour by its power consumption in watts
Energy Efficiency Ratio, What is a Good EER2 Rating - Trane® EER stands for energy efficiency ratio It’s a rating the United States Department of Energy (DOE) requires that measures the energy efficiency of an air conditioner or heat pump at the outdoor cooling temperature of 95°F
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Energy Efficiency Ratings Explained: What Does EER Mean for Your AC . . . EER (Energy Efficiency Ratio) is a measurement of how efficiently an air conditioner operates when the outside temperature is at a constant 95°F It is calculated using the formula: For example, if a unit delivers 11,800 BTU of cooling while consuming 1,180 watts of electricity, its EER would be 10 📚 Source: Energy Star – What Is CEER?
What are EER, CEER, SEER, SEER2, and HSPF2 ratings? EER is measured by taking the unit’s energy consumption while cooling 95°F air over the course of an hour in a climate-controlled laboratory setting It is calculated by dividing the cooling capacity in BTUs per hour (BTUH) by the power input in watts
What Is EER Rating? Energy Efficiency Ratio Explained EER (Energy Efficiency Ratio) measures how efficiently an air conditioner cools at peak outdoor temperature (95F) Learn the EER formula, how it differs from SEER, typical EER ranges, and when EER matters more than other ratings