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Solar powered natural ventilation
SOLA-BOOST Monodraught Limited

The SOLA-BOOST® solar assisted natural ventilation system is an extension of the proven WINDCATCHER® natural ventilation system design, providing additional ventilation on sunny days whilst maintaining zero running costs. With the ever increasing threat of global warming and rising energy prices, the application of an increased range of successful energy free natural ventilation strategies has become even more urgent and important.

The SOLA-BOOST includes the addition of a solar driven internal fan that increases the airflow up to 260 l/s. Conversely the fan operation can be set up to extract stale air. All this without any energy cost. A unique feature of the system is the patented PowerTrack™ control system. This system works on the basis that the brighter the sun, the greater the speed of the boost fan. The unique switching results in 2½ times more power from the solar panel than can otherwise be achieved by a direct connection.

The SOLA-BOOST is divided internally into four quadrants so that one or more face into the wind. Here, windward quadrants supply air under that action of positive wind pressure, and leeward quadrants extract stale air under the action of negative wind pressure. On still days, the SOLA-BOOST acts as a conventional passive stack using natural buoyancy to stimulate air flow through the building.
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