Saving energy in your home must start at the top. As warm air rises, it collects in the attic making your entire house hotter and your air conditioning less efficient and Shorting the life of your Roofing Material. This costs you valuable dollars and unnecessary wear and tear on your cooling equipment. The Power-Save 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 from the utility and will cost you nothing to operate! Removes Hot Attic Air; Solar Powered; Up to 850 CFM Air Flow; Optional Thermostat; Same Day installation; Proudly Made in USA; 10/5/25 Year Warranty; Saves Energy