what is SEER and where do they come up with that number?
A unit's SEER is calculated by dividing the total number of BTUs of heat removed from the air by the total amount of energy required by the unit. The higher the ratio, the more efficient the unit.
SEER-Seasonal Energy Efficiency Ratio.U.S. Government test on a particular condenser model with the most commom coil.The SEER rating will change with different coils.