A range hood extension allows adaptability to kitchens with elevated ceilings or to hoods that install under cabinets. Extensions are available in a variety of sizes in order to fit different kitchens.
In many cases, the range hood extension replaces the smaller standard chimney that comes with the hood. As of 2015, these are available starting around $100, depending on the size, retailer and compatible units. For do-it-yourself homeowners who are not sure which size to use and are preparing for a kitchen remodel, bringing in a remodeling consultant to provide insight on cabinets and other appliances can also help with providing information about range hood extensions.