SEER
The SEER (Seasonal Energy Efficiency Ratio) rating of a unit is the cooling output during a typical cooling-season divided by the total electric energy input during the same period. The higher the unit’s SEER rating the more energy efficient it is.
Related Links
Know Your Terms – Heat Pump Efficiency Ratings SEER & HSPF
Explaining SEER, EER, HSPF, and COP