Recirculating fans and duct vents are both popular options for people who are interested in clearing exhaust food odors hot air and humidity from the kitchen when using over the range microwaves.
Microwave exhaust ductwork.
An externally vented microwave mounted over a cooktop uses a fan to draw air through the microwave s vents and into an exhaust duct leading to the exterior of the building so most of the moisture heat odor and particulate matter generated by cooking goes directly outside.
A rectangular to round transition adapter must be used.
The cooktop light allows you to maintain a clear view of the stovetop below.
Plus the 2 speed exhaust fan removes smoke steam and odors that are produced while cooking on your range.
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This vent damper door measures approximately 10 inches long x 3 inches wide and fits lg microwaves.
This metal vent damper door closes off the exhaust duct when the fan is not running to stop outside air from entering the microwave unit and opens when the fan turns on to allow air to vent away from the microwave.
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If round ducting also note the following.
While both varieties claim to clear the air of odor and heat one system is far superior to the other.
Both smaller and larger vents than recommended decrease venting performance.
The duct must be the sizes listed above for proper draw of air.
L galvanized steel duct.
Microwaves cannot be ducted into a common duct work.
Deflect o jordan 4 in.
Do not vent into an attic or crawl space.