QuietCool Attic Fans work almost everywhere, almost anytime. During the summer, an attic can be 40° to 50° hotter than the outside temperature, which in turn heats up the house very quickly. with an attic fan, you can cool the attic to the same temperature as it is outside, greatly reducing the house from heating as quickly. with the New QuietCool Smart Attic Fan, gone are the-days of having to get into your attic to adjust the thermostat for your attic fan. with the innovative Smart Attic Fan Control, you can now adjust all parameters for your attic fan from your phone. The control also has a Smart Mode that will automatically change speeds based on the conditions in your attic. The QuietCool attic fan is able to keep the attic cooler since it ramps up the speed of the motor in accordance with the temperature in the attic rather than a standard single speed attic fan that would come on at a higher temperature. Features: Energy-efficient 2-speed PSC motor Smart app control with integrated thermostat and humidistat Built-in mounting tabs with anti-vibration pads Mounts directly to your existing gable vents in your attic 70-Watt on low speed and 108-Watt on high speed Up to 1,945 CFM on high at 108-Watts Fire safety sense shut-off Click here for more information on Electronic Recycling Programs