![]() The 1/8 inch louvers prevent rain, snow, insects, and animals from entering inside the fan.įor any questions please see the frequently asked questions page. As a result, creating an upward draft which allows air to flow out of the vent. When the wind blows against the outer louvers this creates a vortex of air within the head. It works passively due to the Venturi Effect. However, it exhausts air continuously even without the sun. Fan only works with solar power when in bright, direct sunlight on South facing roofs. The Aura Solar Fan uses both solar and wind to power the ventilator. Keeping the attic dry and cool during the winter will preserve attic insulation and prevent ice dams. It will remove heat during the summer and moisture during the winter to provide ventilation all year. The Aura Solar Fan is ideal for ventilating steep slope roofs. However, if installed less than 4 feet from the peak, this fan can go on a 0/12 to 5/12 pitch roof in climate zones 1-6. Round aerodynamic design can withstand harsh weatherĮxhaust fans with a collar height of 12 inches or greater are typically for low slope or flat roof ventilation.Inner louvers prevent insects and animals from entering the vent.Note, that many are 120/240 VAC 10 amps or more-if your DC is not that high of current, you can probably use one of these just fine. Works passively with the wind when there is no sunlight : Amtrak Solar Powerful 100-Watt Solar Attic Fan Quietly Cools, Ventilates Exhaust Your House, Garage, Greenhouse, Chicken Coop or RV and Protects Against Moisture Build-up (Two Fans) : Patio, Lawn & Garden Patio, Lawn & Garden Generators & Portable Power Solar & Wind Power Solar Panels 22995 FREE delivery August 11 - 14. Places like Graingers/McMasters and such have various basic thermostats. ![]() Keeps your home comfortable and energy efficient.All 12 inch solar gravity fans come with a standard 17″ x 17″ square flange. The model ASF-12-C12 exhausts air out at 740 CFM. The 12 inch Aura Solar Attic Fan is 12 inches in diameter and has a 12 inch tall collar. 12 inch Aura Solar Attic Fan | Model ASF-12-C12 | 740 CFM
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