Are there any rules or laws regarding SEER ratings?
Yes. To increase the energy efficiency of residential air conditioners, the Department of Energy has issued new standards that went into effect January 23, 2006. Air conditioners manufactured after January 23 must meet a higher minimum standard, achieving a Seasonal Energy Efficiency Ratio of 13 or higher. The standards, however, do not require you to change your existing heating and cooling unit, nor does it mean that replacement parts and services will no longer be available. Equipment with a rating less than 13 SEER manufactured before this date may still be sold and installed (until manufacturer’s stock is depleted).
