Quote:
Originally Posted by Daox
That's very cool. I'd love to see pictures of your setup.
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Daox unfortunetly I don't have pictures of my backdraft dampers I built. My computer dumped on me, had to get a new one, lost a ton of files.
I made it out of a plastic for sale sign I picked up at Lowe's and some left over cloth material my wife had in her craftroom.
All you do is shape the for sale sign into a circle (in my case a 6 inch diameter to fit in the end of the pipe)
After taping the sign into a 6 inch diameter circle I just duct taped the cloth to the sign so that it overhung the end of the sign by about 8 inches. Very light cloth material.
I stuck this thing in the end of the pipe and bingo wingo! It worked beautiful.
When the fan was on the cloth opened allowing hot air to enter room.. Fan OFF the cloth collapsed stopping cold air backdraft. Worked great.