Fresh Air Ventilators for Your FL, NC and TX Home It’s a fact that proper attic exhaust and ventilation help to evacuate moisture and heat build-up in the attic. It can make your home more comfortable during the hot months and help cut the cost of operating your AC system up to 12%. We specializein green technology like solar powered exhaust fans and other forms of weatherization to help reduce your energy use. Still curious? Find out more about Solar Powered Attic Exhaust Ventilation or to schedule your FREE Energy Audit, contact Southern HVAC at (407) 917-1800 today!