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Thread: Crawl space plenum
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02-12-2012, 07:54 PM #1
Crawl space plenum
Hello, my crawl space has no vents to the outside. I has a cement floor (unfinished slurry). This is my return air plenum. No duct work, return air grills go right into the crawl space. I dont think this is very commom has anyone heard of these?
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