Exhaust Fan Backdraft Damper

99 get it as soon as thu oct 1. Free shipping on your first order shipped by amazon. So i introduced this seperate backdraft damper and it solved the problem.

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Backdraft dampers can either be operated by gravity where pressure or velocity opens and closes the damper or motorized to open and close when required.

Exhaust fan backdraft damper.

The air from the smaller fan was not exiting out of the house. The cape backdraft damper prevents cold air and moisture from entering the home through dryer vents exhaust fan ducts and range hood ducts. Backdraft dampers also called gravity dampers allow airflow in one direction and prevent reverse airflow for use in exhaust or intake hvac systems. Specifically designed to stop back drafts from your clothes dryer bathroom exhaust fan kitchen fan pellet stove direct vent water heater and direct vent furnace.

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The specially formulated fabric sleeve allows maximum air flow only in the desired direction. Draft blocker backdraft damper duct draft stopper backflow preventer inline fan vent vent deflector 4 inch 4 4 out of 5 stars 123 14 45 14. A complete line of damper products for fire and smoke control in life safety systems and for airflow control in commercial hvac and industrial systems. Draft blocker backdraft damper duct draft stopper backflow preventer inline fan vent vent deflector 6 inch 4 4 out of 5 stars 117.

One fan is 200 cfm the other is 90 cfm. Exhaust or mixed air applications. Quick look at a couple of solutions for stopping cold air blowing back through ventilation vents. I ran into a problem.

I have it installed horizontally. Available in 4 in 5 in 6 in 7 in. Aldes 6 inch round spring loaded backdraft damper professional grade. Get it as soon as fri sep 25.

Instead it ended up going through my bigger fan when it wasn t on it didn t have it s own backdraft damper.

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