Understanding how to measure vent hood dimensions is an essential part of selecting and installing the right model.
To effectively catch smoke and cooking odours from the dishes below, the ideal range hood should match the width of the cooking surface. Most ranges and vent hoods are available in 30-, 36-, 42-, and 48-inch widths.
Not every range hood needs to extend all the way to the ceiling. Some models use outdoor exhaust, moving air through ducting installed in a wall, ceiling, or floor to release it outside the home. Others rely on recirculation, filtering the air as it passes through the hood and then sending it back into the kitchen. To determine which approach suits your kitchen layout, it helps to weigh the differences between ducted and ductless range hoods.
Style-focused models such as canopy and downdraft hoods generally vent to the outside, whereas under-cabinet and microwave hood combinations are usually built for recirculation. Before buying a range hood, consult the owner’s manual to understand its venting method and whether it is convertible. In some cases, a separate conversion kit can be purchased to change an external vent into a recirculating one.
