Preheating of Fresh Air : Fresco SL

Fresco SL : Solar Preheating on Flat Roofs

The Fresco SL solar air heater is designed for mounting on flat roofs to preheat outside air just before it enters the ventilation unit, with no impact on the building’s architecture.

Because it is mounted on spacious flat roofs, the Fresco’s major advantage over wall installations is that it can always be designed to face due South, and inclined at an optimal inclination of 70°, to maximize the solar warm air output during the cold season.

How the Solar Collector Works