Prevent a Powerful Range Hood From Backdrafting Your Furnacecomments (9) November 22nd, 2011 in Blogs
Sean McLoughlin's new house in southern California will have a professional-size kitchen range and barbecue. He's learned from experience the device produces "huge amounts of heat and smoke," so he's going to need a range hood that's up to the job.
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What he's got in mind is a fan that will draw 900 cubic feet of air per minute. That's big. Unless he's careful to provide enough makeup air, a fan of that capacity can cause a host of problems, including dangerous backdrafting in furnaces and fireplaces.
In a post in GreenBuildingAdvisor's Q&A forum, McLoughlin wonders aloud whether the HVAC system can be configured to bring in replacement air for the range hood.
But a better solution seems to lie with a damper made by Broan that opens automatically when the range hood fan is turned on. The fine points of the design are the subject of this week's Q&A Spotlight.
posted in: Blogs, kitchen, hvac, range hood
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