Roof Fan Spring Loaded Shutter

Quietcool accessories 14 in x 30 in metal galvanized steel whole house fan shutter.

Roof fan spring loaded shutter.

Make sure the shutters have a spring and it is connected properly. Dampers shutters and louvers are used to create zones prevent backdrafts and direct airflow in ventilation systems. 3 8 out of 5 stars 147. These gravity operated exhaust shutters can be used with direct or belt driven exhaust fans and can help prevent air backflow when the fan is off.

Heavy duty motorized volume control damper. Each exhaust shutter features durable galvanized steel aluminum or fiberglass frame construction with moisture and corrosion resistant stainless steel fasteners. Use in roof curbs duct work or wall collars when using a fan or power roof ventilator. If the spring is there but the tension is insufficient move the spring up a notch to increase the tension.

Shutters are spring loaded to automatically close when the fan turns off. 12 w x 12 h. Spring loaded for positive closure. Iliving 18 wall mounted exhaust fan automatic shutter variable speed vent fan for home attic shed or garage ventilation 1736 cfm 2600 sqf coverage area 4 6 out of 5 stars 190 130 69 130.

Ac infinity airlift t12 shutter exhaust fan 12 inch with temperature humidity controller wall mount ventilation and cooling for sheds attics workshops.