Summary: Got this unit to replace a smaller Frigidaire we had been using for 4 years. The old unit was still working, but wasn't big enough for the area so, we decided to upgrade. The new unit is GREAT! It's much quieter. Can hardly hear it at all. It also has supplemental heat. The heat feature is excellent for warming it up a little (not a primary heater), and helps by giving it's user more individual climate control.