Solar Attic Fan
Apr 29, 2008 – "Green products" are in the news these days, and what could be greener than solar energy? After all, it's clean, renewable, and costs nothing to use. So why not cool houses with it?
We're not suggesting a massive project like air conditioning your home with solar panels. But consider this: a simple attic fan is a great way to get heat and moisture out of the attic, thus cooling the whole house and reducing the need for energy hungry air conditioning.
For years now, Active Ventilation Products in Newburgh, NY has been manufacturing a full line of roof vents, attic fans and tubular skylights based on their patented "Aura Vent" design. This unique vent can exhaust efficiently without any moving parts.
How, you ask? When outdoor wind blows against the outer louvers of the Aura Vent, the air is directed by the louvers to create a vortex (air moving quickly in a circular direction). When this vortex hits the inner louvers, it creates a “Venturi Effect” inside the vent (see http://roofvents.com/explanation.html for full description). The resulting vacuum dynamically exhausts air out of the attic or building. This means that the Aura Ventilator is able to exhaust 24/7 if even a slight breeze is blowing outside.
To increase the exhaust power during the hottest hours of the afternoon on a sunny day, AVP has added a solar panel to the top of the vent, which drives a fan inside the vent. This provides extra power during the day, but unlike other solar powered vents, continues to work even through the night due to the passive Venturi effect.
Because of the solar panel, no wiring is necessary for installation, leading to even greater savings. The vent is so economical that the US military recently purchased a large number for their own installations.
The Aura Ventilator can be installed on any type roof and at any pitch without the need for an adjustable base. The Aura Design was tested for the Texas Department of Insurance at wind speeds of 200 mph, and was approved by Dade County, Florida to withstand hurricanes.
Source
Solar Attic Fan
OTHER RELATED INFORMATION
Apr 29, 2008 – "Green products" are in the news these days, and what could be greener than solar energy? After all, it's clean, renewable, and costs nothing to use. So why not cool houses with it?
We're not suggesting a massive project like air conditioning your home with solar panels. But consider this: a simple attic fan is a great way to get heat and moisture out of the attic, thus cooling the whole house and reducing the need for energy hungry air conditioning.
For years now, Active Ventilation Products in Newburgh, NY has been manufacturing a full line of roof vents, attic fans and tubular skylights based on their patented "Aura Vent" design. This unique vent can exhaust efficiently without any moving parts.
How, you ask? When outdoor wind blows against the outer louvers of the Aura Vent, the air is directed by the louvers to create a vortex (air moving quickly in a circular direction). When this vortex hits the inner louvers, it creates a “Venturi Effect” inside the vent (see http://roofvents.com/explanation.html for full description). The resulting vacuum dynamically exhausts air out of the attic or building. This means that the Aura Ventilator is able to exhaust 24/7 if even a slight breeze is blowing outside.
To increase the exhaust power during the hottest hours of the afternoon on a sunny day, AVP has added a solar panel to the top of the vent, which drives a fan inside the vent. This provides extra power during the day, but unlike other solar powered vents, continues to work even through the night due to the passive Venturi effect.
Because of the solar panel, no wiring is necessary for installation, leading to even greater savings. The vent is so economical that the US military recently purchased a large number for their own installations.
The Aura Ventilator can be installed on any type roof and at any pitch without the need for an adjustable base. The Aura Design was tested for the Texas Department of Insurance at wind speeds of 200 mph, and was approved by Dade County, Florida to withstand hurricanes.
Source
Solar Attic Fan
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