Published at Sunday, 03 February 2019. Kitchen Window and Ventilation Hood. By Osvald Henriksen.
ASHRAE’s residential ventilation standard, ASHRAE 62.2, limits exhaust fans to a maximum of 15 cfm per 100 square feet of occupiable space, unless a backdrafting test is performed. According to this standard, the smallest home in which a 1,200-cfm range hood could be installed without verifying makeup air needs would be one measuring 8,000 square feet — a very large McMansion indeed.
If you've ever forgotten to turn on the fan while trying to get a nice crust on a pan full of fish fillets, you're familiar with the importance of good ventilation. In addition to whisking away unwanted odors, vent hoods remove moisture and grease, as well as carbon monoxide, nitrogen dioxide, and other pollutants that cooking can release into the air.
Another consideration is location in the room. Curtains should not be near the stove or too close to splash-back from the sink. Judy Soccio of Couture Window Art says to keep treatments over the sink short—and that includes any cords. Think about how much and what you cook, too: If odors and grease are an issue, Judy says, choose washable fabrics or those with Crypton or Microban.
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