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Old 09-21-10, 11:08 AM   #13
Lex Parsimoniae
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Join Date: Feb 2009
Location: Woburn, MA
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Is there an all-season attic-vent-fan product on the market with bi-directional fans,
that's insulated, with a flap that shuts during winter nights.?.

It would be nice to clear out indoor hot air in the summer and suck down warm air on days like this..
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