Powered by the sun, the Broan Solar-Powered Attic Ventilator (SPAV) begins working in the morning at first light, removing moisture from the cool overnight air and ventilating the attic before the heat of the day can build up. A standard powered attic ventilator (PAV) must wait until its thermostat detects a high temperature and signals the ventilator to begin working. By that time, the moisture has already seeped into the insulation and the ventilator must work harder to cool the air and run all day when energy costs are higher. In addition, the Broan SPAV is completely solar powered, requires no electricity or fuel, emits no pollution and costs nothing to maintain.
