Power Attic Ventilator, Automatic Thermostat, Air Vent, 1900 sq-ft Net Free Ventilating Area, 1320 cfm Air

It's electric powered and uses a thermostat and humidistat control to help prevent heat and moisture build-up inside the attic. Installed in the gable end of the house, the gable-mount ventilator operates 30% more quietly than comparable units and with 35% greater efficiency. What's more, since many homes already feature a gable or vent, it may not be necessary to cut a hole to install the gable-mount ventilator.

• Requires 634 sq-in of intake vents

• Instruction/Installation Manual