On Thu, 2 Jan 2014 16:32:20 -0600, "Snag" wrote:


Has anybody here used those thermo-spring actuated crawl space vents ?
Supposed to open when it gets hot and close when it gets cool , but the
only ones I've had contact with were crap .
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I heard they were bad maybe 20 years ago. Surey they've improved them by now. It' snot rocket surgery.