The QuietCool AFG SMT-3.0 smart attic fan has a built-in thermostat/humidistat and a ten-variable speed motor. When the attic is at its hottest point, the fan will run at the 3,000 CFM setting, while only using 15 to140 watts! For that amount of power, 140 watts is an amazing feat! As the attic begins to cool down, the smart attic fan will automatically cycle itself down to the lower speeds. At the lowest speed, the fan will blow 1,000 CFM and run at only 15 watts!
To install, simply mount it directly to a gable or dormer vent and plug the fan in using the 20-foot power cord that comes attached. That is it! It truly is plug and play, and maximum energy efficiency for the homeowner!