The Dual Function SMART VENT series is designed for use in enclosed spaces where flood protection is required and natural air ventilation is also desired.
A bimetal coil automatically opens and closes the ventilation louvers as temperature changes. No electricity is required. The louvers will be fully closed at 35˚F and fully open at 75˚F.
Stacker Models are twice as efficient as a single unit, and are a great solution for:
• large amounts of square footage requiring flood protection
• situations where there is not enough wall space to fit single units