What is a microwave vent damper?

[lazywolf894]

Popular Microwave Ducts and Vents

This bracket holds the metal or plastic flapper that closes off the exhaust duct when the fan is not running and opens when the fan turns on. This is an exhaust damper assembly for a microwave, which is also known as a microwave vent damper.

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A microwave oven designed to be mounted over a cooktop is usually equipped with a ventilation system to cope with the cooking odors, smoke and moisture that rise from the cooking surface. The ventilation system may lead to an exterior vent, or it may simply recirculate air back into the kitchen.

Also, how do you stop a microwave vent from draft?

1. Open the doors of the cabinet sitting above the microwave.
2. Lower the microwave slowly and set it aside.
3. Examine the microwave vent and the duct opening for signs of a damper.
4. Measure the opening of the duct and the microwave vent with a tape measure.
5. Slide the flap damper and fitting into position.

Likewise, people ask, do microwaves need to vent?

Virtually all building codes require a ventilation system installed over the kitchen stove. This ventilation system has a light that illuminates the stovetop surface and a fan that removes smoke and steam from the air. Over-the-range microwaves have a light and fan built into the bottom of the appliance.

Do Over Range Microwaves vent?

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.