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The Importance of Wind
The Indian Tepee is a classic example of structure employing the concept of a rotary ventilator to ensure adequate ventilation by the provision of a doorway to allow entry of fresh air, and a hole at the top to exhaust stale air. During the industrial revolution manufacturing buildings were frequently full of smoke, fumes or steam. The moist air condensed on the inside of the roof and precipitated onto the workers below, which led to the development of elementary ventilation devices in an attempt to overcome these problems. These devices were either holes in the roof with some type of elevated covering to keep the weather out, or new styles of roof systems called Lantern or Jack roofs. They were very inefficient by modern standards as they allowed wind to enter on the windward side causing turbulence in the opening and preventing any exhaust of air from building. |
A Passive Ventilation Device
A rotary ventilator is a passive ventilation device, a non-electric alternative to mechanical ventilation, these vents use the natural force of wind and air pressure to spin and vent out stale air. They do it with a series of specially shaped vanes that catch the wind and provide rotary motion. This pulls out hot, humid air. Rotary vents provide a low-cost ventilation alternative in areas where wind speeds of at least 5 mph are typical. A well-designed rotary ventilator takes advantage of the wind to create a positive flow through the throat of the ventilator. Passive vents work for free and in almost all instances are silent. The ventilator will even rotate and exhaust in the absence of wind using thermal currents developed within the building.
Rotary Ventilators are also commonly known as Whirlybird Vents, Spinning Roof Vents, Extractor Vents, Attic Turbines, Roof Turbine Vents, Turbo Vents & Turbine Vents. They are an Easy to Install and Energy Smart Vent Option.
A rotary ventilator is a passive ventilation device, a non-electric alternative to mechanical ventilation, these vents use the natural force of wind and air pressure to spin and vent out stale air. They do it with a series of specially shaped vanes that catch the wind and provide rotary motion. This pulls out hot, humid air. Rotary vents provide a low-cost ventilation alternative in areas where wind speeds of at least 5 mph are typical. A well-designed rotary ventilator takes advantage of the wind to create a positive flow through the throat of the ventilator. Passive vents work for free and in almost all instances are silent. The ventilator will even rotate and exhaust in the absence of wind using thermal currents developed within the building.
Rotary Ventilators are also commonly known as Whirlybird Vents, Spinning Roof Vents, Extractor Vents, Attic Turbines, Roof Turbine Vents, Turbo Vents & Turbine Vents. They are an Easy to Install and Energy Smart Vent Option.
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