Most of my clients choose high-performance commercial-style ranges that require powerful exhaust fans. Rather than search for a manufactured range hood that meets all of their needs, I prefer to build a custom enclosure. The ventilation is provided by a two-piece insert kit that includes a compact (11 1/4-inch by 20 1/2-inch) power unit and a surrounding metal hood liner.The hood that’s shown in the photos was part of a modest kitchen upgrade. It was designed to fit between existing cabinets and consists of a rectangular base that supports the fan and a sloping cap that conceals the ductwork.To work...

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