Published at Wednesday, 23 January 2019. Kitchen Window and Ventilation Hood. By Pedersen Wilda.
Range hoods have at least one thing in common with combustion appliances: they also require makeup air, although the GE instructions fail to note that fact. So why do the instructions refer to the need for providing makeup air for furnaces and water heaters — but fail to inform installers that range-hood fans also need a source of makeup air?
Eyesore no more! In recent years, kitchen range hoods have evolved from grimy eyesores to works of art. And why shouldn't an appliance of such large size also make a big (stylish) statement? Today, kitchen vent hoods are available in all shapes, sizes, and materials (hello, copper!) that can either draw the eye or blend right in with the surroundings.
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.
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