Venting Microwave Through Attic

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.

Venting microwave through attic.

But an alternative worth considering if it does not make the vent run too long is to vent across the attic floor and down and out through a soffit or out through a gable end wall. The top vented microwave example given assumes that the vent runs straight up through the roof see the roof cap in the sketch above. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. How to vent a bath fan through the roof this old house duration.

Do not vent into an attic or crawl space. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. How to install vent ducting for a microwave over the stove. If you have any other inquiries about our master flow products please call technical services at 800 211 9612.

The old microwave did not. If round ducting also note the following. I would like to use that path to vent a new microwave. Vent your bath and kitchen exhaust fans through the roof through a special roof hood.

Whirlpool microwave vent hood installation model wmh73521cs duration. Microwaves cannot be ducted into a common duct work. You would need to know what your local codes call for to use an existing chimney. The duct must be the sizes listed above for proper draw of air.

Both smaller and larger vents than recommended decrease venting performance. It appears when this house was built provision was made for venting out the rear of the microwave into the standard 2 4 wall up the cavity inside the wall then up through duct work in the attic through the roof. Also the plumbing vents should also go through the roof. This product is intended to vent an appliance through a asphalt shingle roof.

A rectangular to round transition adapter must be used. I want to vent to the outside.