Natural History
More than 2,000 years ago Wind Towers in the also created the future of natural ventilation with
Middle East were used to provide buildings Sola-boost. Using solar energy to drive an integral
with natural ventilation. Today, Monodraught fan Sola-boost increases the fl ow of fresh air
Windcatcher natural ventilation systems use through the Windcatcher system to improve the
the same principles. With the added benefi t of natural ventilation rate or, when there is no wind,
sophisticated control dampers and intelligent to create a downdraught of fresh natural air. Even
control systems, Windcatchers are harnessing when external temperatures are 25°C+. This is
the power of the wind, applying atmospheric achievable, sustainable energy from Monodraught.
principles, bringing fresh air into buildings using
only renewable wind energy. Monodraught has
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4 CIBSE Journal October 2009 www.cibsejournal.com
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