I just wanted to share a simple ventilation system that is working very well for our ranch house.  Our house is 28×48, on a conditioned crawl space, completed 1 year… I just wanted to share a simple ventilation system that is working very well for our ranch house.  Our house is 28×48, on a conditioned crawl space, completed 1 year…Read MoreGreenBuildingAdvisor

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