Energy Free Powered Natural Ventilation

Patent Application Number: 0523033.9

The Sola-boost is an extension of the proven Windcatcher design, to provide additional ventilation on sunny days whilst maintaining zero running costs.

Monodraught Windcatchers have been a tremendous success since first launched 15 years ago and more than 4,000 have now been installed but it is recognised that faced with the potential problems of global warming and a predicted continual rise in energy costs, the application of an increased range of successful energy free natural ventilation strategies has become even more urgent and important.
Monodraught have significantly improved the potential of Windcatcher systems by the addition of a solar driven internal fan that brings in additional fresh air up to 260l/s. Conversely, the fan operation can be set 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.