Aura Solar Fan Retrofit
The Aura Solar Fan Retrofit Models are designed to replace existing roof vents.
They are a perfect replacement for turbine vent heads! Turbines frequently slow or stop turning entirely due to wear, corrosion, or damage from high winds. The Aura Solar is a much better alternative because it is not open to the sky, preventing rain and snow from entering. Aura Solar Fan Retrofit exhausts heat using both solar and wind power. Even when the solar panel is not hit by direct sunlight, the inner and outer vertical louvers around the fan allow the hot air from the inside and the air from the outside to pass through. This creates a suction or vacuum referred to as the Venturi effect. These vertical louvers also prevent rain and snow from entering, unlike the typical turbine vent which is open to the sky.
How It Works: The wind enters the unit through a set of exterior vertical louvers, producing the necessary vacuum to extract excess moisture through a second set of interior louvers. As demonstrated from this view from above, air enters vent from the front (left side of diagram), passing through exterior louvers into the inner chamber, where it circulates and picks up speed. As a result, a vacuum draws up the warm vapors from beneath the vent into the middle section. These vapors enter the inner chamber through the interior louvers and circulate together with the air which had entered from outside, until they both forcefully exit through the back of the vent (the right side of the diagram).