The Remington Solar SF30-GR Solar Attic Fan is a simple and environmentally sensible solution that can protect your home and even save you money with a single 30 Watt unit that can fully vent up to 2,500 square feet, operating at up to 2,200 cubic feet per minute. The solar attic fan is the perfect way to ventilate and improve air circulation in your attic without increasing your electric bill since the fan is powered by free solar energy. Properly venting and circulating the air in your attic helps reduce attic and indoor home temperatures, destructive moisture and mildew build up, and the working load on your HVAC system. Great features of the solar attic fan are the pre-installed humidistat and thermostat, which is a $40 value included for free. The humidistat operates above 50% humidity, and is primarily meant for homes in northern climates. The thermostat operates when the temperature is greater than 80F and automatically turns off when the temperature is less than 80F. The solar attic fan’s solar panel is hail and weather resistant. The solar attic fan runs anytime of the year, especially in the summertime to remove stifling hot attic air, and in the winter to reduce the risk of ice-damming. The solar attic fan helps reduce the amount of work your HVAC system needs to perform to make the home interior climate more comfortable by reducing the gap between the interior home temperature and the desired home temperature.