Exhaust Fan Backdraft Damper

Quick look at a couple of solutions for stopping cold air blowing back through ventilation vents.

Exhaust fan backdraft damper.

Free shipping on your first order shipped by amazon. Instead it ended up going through my bigger fan when it wasn t on it didn t have it s own backdraft damper. 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. I ran into a problem.

Get it as soon as fri sep 25. The specially formulated fabric sleeve allows maximum air flow only in the desired direction. Tamarack technologies cape backdraft damper opens and closes with minimal airflow in either direction. Available in 4 in 5 in 6 in 7 in.

2 pack 4 backdraft damper duct backflow preventer inline fan vent vent deflector professional back draft damper inline spring loaded exhaust pipe check fan valve with 2pcs clamps 18 99 18. Aldes 6 inch round spring loaded backdraft damper professional grade. 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. The cape backdraft damper prevents cold air and moisture from entering the home through dryer vents exhaust fan ducts and range hood ducts.

I have it installed horizontally. Ventilation extractor fan backdraft shutter. 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. Backdraft dampers also called gravity dampers allow airflow in one direction and prevent reverse airflow for use in exhaust or intake hvac systems.

The air from the smaller fan was not exiting out of the house. Exhaust or mixed air applications. 99 get it as soon as thu oct 1. 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.

Backdraft damper vent draft blocker aluminum faci 4in.