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Thread: Overheating microwave oven
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Old 09-08-2020, 06:33 PM
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Quote:
Originally Posted by retiredguy123 View Post
To clarify, on most microwave ovens, the fan will suck air through the bottom of the microwave and will discharge it through the vent holes in the top, front part of the microwave. So, you are blowing hot air toward the drywall kitchen ceiling. You may be reducing the temperature directly above the cooktop, but you are not removing any heat from the kitchen. In my opinion, this is not a good design. The builder should install a vent through the exterior wall or roof. The microwave ovens are designed to allow the fan position to be changed to discharge the air to an outside vent.
My cottage home was built in 2011. This IS exactly the way my microwave is vented. The microwave is mounted on an interior wall, so the microwave exhausts into a duct that goes straight up to a vent on the roof.