Published at Saturday, February 02nd 2019. by Osvald Henriksen in Kitchen Window and Ventilation Hood.
Moreover, in a house with an atmospherically vented water heater, a 1,200-cfm GE Monogram range hood may cause backdrafting of flue gases, even if the water heater was originally installed in compliance with NFPA and ASHRAE standards. So complying with these standards for water-heater installation won’t keep you out of trouble.
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.
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.
So where does a powerful range-hood fan get its makeup air? If the house doesn’t have enough random air leaks around windows, doors, and mudsills, the makeup air is often pulled backwards through water-heater flues or down wood-burning chimneys — a phenomenon called backdrafting. Since the flue gases of some combustion appliances can include carbon monoxide, backdrafting is dangerous. In some cases, it can be life-threatening.
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.
Build a custom decorative box to cover your old range hood. Reorganize your kitchen, so you don’t need the extra space of an overhead cabinet and then cover the front and sides with wood that you can stain or paint as shown here. You’ll still have access to the vent controls by reaching underneath. And, the front ledge works as a spot for small fun or functional objects.
Another important question is “How do I treat odd shaped windows”? Some ideas that can help you decide are floor-length curtain panels for large bay windows or french doors. Also, valances and cornices are in a way accent marks over windows you want to bring attention to. Asymmetrical design in wood or fabric have the ability to offer a modern design to your kitchen.
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