The cooling efficiency rating for air conditioners and heat pumps is Seasonal Energy Efficiency Ratio, or SEER. The higher the SEER, the better the energy performance, and the more you save.
National efficiency standards compliance
As of January 1, 2015, new federal regulations for cooling efficiency were put in place. These new regulations mandated higher minimum SEER ratings, with different standards for different parts of the country.
North
Split Systems-
Air Conditioners: 13 SEER
Heat Pumps:14 SEER, 8.2 HSPF
Packaged Units-
Air Conditioners: 14 SEER
Heat Pumps:14 SEER, 8.0 HSPF
Southwest
Split Systems-
Air Conditioners: 14 SEER
12.2 EER = 3.5 Tons, 11.7 EER = 4 Tons
Heat Pumps:14 SEER, 8.2 HSPF
Packaged Units-
Air Conditioners: 14 SEER, 11 EER
Heat Pumps:14 SEER, 8.0 HSPF
South
Split Systems-
Air Conditioners: 14 SEER
Heat Pumps:14 SEER, 8.2 HSPF
Packaged Units-
Air Conditioners: 14 SEER
Heat Pumps:14 SEER, 8.0 HSPF
Lennox® air conditioners
Exacting precision makes Lennox® air conditioners among the quietest and most energy-efficient units you can buy. With industry-leading efficiencies SEER ratings of up to 21.00, Lennox air conditioners can also save you hundreds of dollars in utility costs every year.
