Solar heating in mountain refuges
At the beginning of winter, solar air reached the mountain huts of Ventosa and Calvell, located in the Aigüestortes National Park in the Spanish Pyrenees, at 2.220 meters above sea-level. The Twinsolar 8.5 – an air collector of 8,5 m², completely self-sustaining as operated by a photovoltaic module – heats the cabins, creating a cosy ambiance for alpinists and other visitors.





Suomessa ainutlaatuiset kuumailma-aurinkokeräimet soveltuvat mökkien ja omakotitalojen lisäksi vaikkapa urheiluhallien lämmitykseen ja ilmastointiin.