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Heating & Cooling

SEER Rating (Seasonal Energy Efficiency Ratio)

A measure of air conditioner and heat pump cooling efficiency. Higher SEER ratings mean lower energy consumption. Modern efficient units have SEER ratings of 15-25.

Example

A SEER 20 unit uses about 33% less energy than a SEER 15 unit for the same cooling.

Related Terms

EERHSPFEnergy Star