Eco Factor: Energy saving system heats or cools interiors according to climate.
In a normal house, heat is either lost or gained through the most thermally weak points, the windows. An Italian company, VentroVentilato, is trying to make windows regulate interior temperature depending on the climate outside by a system of simple double- or triple-glazed windows that are equipped with a sensor-controlled fan.
During winter when the sun heats the windows, the fan blows in freshly heated air to heat the interiors, thereby saving a lot of energy that is usually required for heating. Come summer and the fans work in the opposite way, they release the heated air in between the glass layers outside the building, thereby reducing the amount of energy required to keep the interiors cool.
Via: Core77
