Forum Discussion
westend
Mar 12, 2014Explorer
Flapper construction:
Cut aluminum vinyl coated sheet to size and cut hinge rod

Bend aluminum sheet around rod


Install rod into vent opening

The rod I used was threaded and came with a threaded fastener. The cut end of the rod was cut was die cut to accept the same fastener. You could just use a nylock nut for the same purpose and use a piece of threaded rod stock.

Easy project took me about two hours even with the super techno spring and cable system I was going to use. I didn't use the cable as I found an easier way to hold the vent open, I removed the spring. The fan blows the flapper open when on.
Cut aluminum vinyl coated sheet to size and cut hinge rod

Bend aluminum sheet around rod


Install rod into vent opening

The rod I used was threaded and came with a threaded fastener. The cut end of the rod was cut was die cut to accept the same fastener. You could just use a nylock nut for the same purpose and use a piece of threaded rod stock.

Easy project took me about two hours even with the super techno spring and cable system I was going to use. I didn't use the cable as I found an easier way to hold the vent open, I removed the spring. The fan blows the flapper open when on.
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