Comments about American Aldes Aldes 10" Backdraft Damper - BDD10:

This damper replaced a truly inferior Jennair damper on a range hood which vibrated horribly in the strong winds we get in the Colorado foothills. Although installation was tricky, the end result was quiet performance in even the strongest wind. The tension on the spring can easily be increased if need be which is a nice feature. It also provided a much better seal than the Jennair one.

Comments about American Aldes Aldes 10" Backdraft Damper - BDD10:

When my hydro air system turns on all the supply and return dampers open to allow the heat to enter the rooms. When the blower stops all the dampers close, and this action keeps the heat in the rooms and doesn't allow the heat to escape up into the ducts inside the cold attic. Works great and it's very quiet.

Comments about American Aldes Aldes 10" Backdraft Damper - BDD10:

Quality made product. Impressed with the gasketed damper for good internal seal. slip fit inside of pipe with foam seal around outside of damper. Kinda pricey but you get what you pay for. If you need a good ( great ) damper this is it!

Comments about American Aldes Aldes 10" Backdraft Damper - BDD10:

I really like the sleek design and quietness of the operation.