Venting Microwave Through Structural Wall Then Roof

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Venting microwave through structural wall then roof.

I am installing a new over range microwave in my kitchen and would like to vent to the outside rather than recirculate. At the ends of the attic and allow damp warm air to flow outside. There s a second floor above me and a basement below me so i want to go down through the basement. All over the range spacemaker microwaves can be vented to the outside using an equivalent total of 140 feet of rigid 3 1 4 x 10 rectangular or rigid 6 round ducting.

I would like to use that path to vent a new microwave. We have 1 floor ranch. Over the range microwave ducting information duct installation guidelines. Range is against an exterior wall where the rafters rest on.

Broan nutone 634m steel roof cap for 6 round duct for range hoods losone fans and bath ventilation fans black 4 5 out of 5 stars 200 34 60 34. Gable vents installed in the gables the part of the wall that encloses a pitched roof. 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. For the range hood duct vent is it more effective to go straight up to the roof or go up then bend 90 degree to vent out of the exterior wall.

This product is intended to vent an appliance through a asphalt shingle roof. The old microwave did not. A recirculating vent on the other hand simply sucks in the air from the microwave and recirculates it through a filter back into the kitchen. As well as the piercing of a wall ceiling or roof.

Some recirculating vents contain a charcoal filter to eliminate odors and reduce heat but for the most part they are ineffective at ridding the kitchen of the hot moist air from the microwave. I want to vent to the outside. External venting in a microwave oven depletion efficiency an externally ventilated microwave mounted on a hob uses a fan to extract the air through the microwave openings and an exhaust duct leading to the outside of the building so most of the moisture heat the smell and particulate matter the cooking generated. It will be mounted to an interior wall so i either have to go up or down.