Plastic exhaust fans are corrosion resistant. These fans are quieter than other models.
Solar vent openers will activate at a preset temperature, opening louvers. Plastic Hoods for Exhaust Fans protect fans from snow, wind and sleet during winter. They can be used on fans facing the north side of the building.
Poly exhaust shutters are corrosion resistant and can be used with the plastic flush mount or fiberglass exhaust fans. Aluminum shutters can be purchased with or without a motor. Motorized shutters can be used as air intake or air exhaust. Motor can be wired to a control such as a thermostat or timer. Smaller exhaust fans are used in greenhouses.
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