The Goodman SSZ14 heat pump is certified as an Energy Star efficient appliance by the Department of Energy. Other Goodman heat pumps in production as of 2015 do not meet the standards for Energy Star certification.
The Goodman SSZ14 heat pump achieves a Seasonal Energy Efficiency Ratio of up to 15 and a Heating Seasonal Performance Rating of 9 using a chlorine-free R-410A refrigerant. However, Energy Star compliance for a particular installation is dependent on the use of compatible parts in the remainder of the home's climate control system. Goodman advises purchasers of the SSZ14 to consult with a professional who specializes in energy-efficient heat pump installations to insure the best possible efficiency for the system.