Use the calculator below to see how much you can save. Compare yearly electricity costs to operate air conditioners with different SEER ratings.
About the Calculator
This calculator was designed to compare existing HVAC units to high-efficiency units without specific SEER rating limits. Assumptions: $0.15 per kWh electrical cost and the seasonal cooling days per ASHRAE standards. These are the maximum savings based on seasonal operating hours. Actual realized savings may be less based on thermostat settings, home heat gain, etc. Calculator is based on Baltimore, MD heating season.
The efficiency of central air conditioners is often rated by the Seasonal Energy Efficiency Ratio (SEER) which is defined by the Air Conditioning, Heating and Refrigeration Institute. The SEER rating of a unit is the cooling output in BTUs during a typical cooling season divided by the total electric energy input in watt-hours during the same period. The higher the unit’s SEER rating the more energy-efficient the unit.