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Residential Kitchen Range Hoods (Single Family Dwelling & Townhomes)

Range hoods shall discharge to the out doors. The duct serving the hood shall have a smooth interior surface, be air tight, and equipped with a backdraft damper. Ducts shall be galvanized steel, stainless steel or copper. Listed and labeled ductless range hoods are not required to discharge to the out doors. Newly installed range hoods with over 400 CFM discharge will require make up air.
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