n the end we were able to place it at the maximum height for two reasons: 1. Our fan had a high CFM (cubic feet per minute) number in proportion to our stove’s BTU, and 2. Our vent hood was wider than our range. Chris Riddle of Riddle Construction and Design explains: “In an ideal situation the hood should be 6 inches wider than the size of the cooktop/range for maximum efficiency. Meaning a 30-inch range has a 36-inch-wide hood, a 36-inch range has a 42-inch hood and so forth.” How to Choose the Right Hood Fan for Your Kitchen
The range hood is also incorporated within the tiled surface. “Part of our philosophy is that it shouldn’t be seen,” Lennox says. “We like to get the best-performing model that’s really practical and not worry about how it will look — hiding it instead. So this one, which is ducted to the outside, has a very high extraction rate.”
Range hoods come in a variety of shapes and sizes, as well as in an array of power levels. Blower fans are measured in terms of the cubic feet per minute (cfm) of air that the fan moves. (This information will be included in the model’s specifications.) Meanwhile, cooktops are measured in terms of how many British thermal units (Btu) of energy they produce. There are basic rules of thumb to pair the cooktop’s energy production with the hood’s oil- and grease-sucking power. “For every 100 Btu, you need 1 cfm,” says Bradley Faber, showroom manager at Ferguson Bath, Kitchen & Lighting Gallery, in Bellevue, Washington. For example, a professional-grade range with 90,000 Btu would require a range hood that has 900 cfm. Voir l'article
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