This is a larger sized 20W solar attic fan. The solar attic fan removes hot air from the attic keeping your home cooler while maximizing your air conditioner's efficiency. The solar powered fan draws no electricity and will cost you nothing to operate. The fan operation is regulated by a built-in thermostat, so it runs only when needed. Installing an attic fan can reduce the attic temperature by as much as 30% and lower the temperature in the house by as much as 10˚ F, thus lowering the cooling cost in the hot summer months.
