Glossary of Terms
Gas furnaces use Annual Fuel Utilization Efficiency (AFUE) as their measurement. The higher the AFUE, the greater the efficiency and the greater your energy savings potential.
Heat pumps use Heating Seasonal Performance Factor (HSPF) as their measurement of heating efficiency. The higher the HSPF, the greater the efficiency and the greater your energy savings potential.
SEER stands for Seasonal Energy Efficiency Ratio and applies to central air conditioners and heat pumps during cooling operation. The higher the SEER, the greater the energy economy.
EER stands for the Energy Efficiency Ratio that calculates the efficiency provided by a central air conditioner or heat pump while cooling at a specific oudoor temperature. It can be found by dividing a unit’s Btu output by its wattage.
ENERGY STAR®qualified earn the U.S. government’s designation for superior energy efficiency to help save costs on energy bills.
Unit used to measure sound level by comparing it with a given level on a logarithmic scale.