Published at Wednesday, January 23rd 2019. by Pedersen Wilda in Kitchen Window and Ventilation Hood.
As a stop-gap measure, a homeowner with backdrafting problems can open a window near the kitchen every time the range-hood fan is turned on. Although this solution works, it won’t satisfy most homeowners, and builders who suggest this remedy may still be legally liable for future backdrafting problems.
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.
If your heart is set on a stainless hood, and feel a custom wood range hood would be mutually exclusive, consider the solution shown above! The stainless range hood is complemented by the enclosure overhead, which encases the duct work, resulting in a harmonious and fitting combination.
If you have a huge family, and you indulge in commercial-scale cooking that requires a powerful exhaust fan, you’ll need to install a powered makeup air unit like those manufactured by Electro Industries of Monticello, Minnesota or Fantech. These units move a lot of air; in winter, the incoming air is cold, but it can be heated with 10,000-watt electric resistance elements if you want. Be prepared to suffer a huge energy penalty. The model EM-WH1025K from Electro Industries will supply 632 cfm at a 50 F° temperature rise. If you want a 1,200-cfm range hood, you’ll need two of these makeup air units; they cost about $1,800 each.
Venting the polluted air out of your house is always preferable to recirculating it. Recirculating fans use charcoal filters to clean the air and release it back into the house when ducting to the outside is impossible, as in many apartment buildings. When it's the only option, a recirculating hood is better than no ventilation at all, but this type should never be used with pro-style appliances.
Every time an exhaust fan removes air from your house, an equal volume of air must enter. The air that enters cracks in a home’s envelope to replace air that is exhausted is called “makeup air.” Two trends affecting makeup air are causing increasing problems for homeowners: homes are getting tighter, and range-hood fans are getting more powerful.
Kitchen windows present a few challenges. The windows all may not match; maybe there are casements over the sink, large double-hungs in the eating area, and a glass door to the mudroom. Go with what’s practical in each case, tying the treatments together with material or color, or a common trim or stencil. Ann Wallace of Prairie Textiles suggests bottom-only café curtains over the sink, for example, with full-length curtains in the eating area, and a panel (held by rods at the top and bottom) for the window in the door.
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