I blocked my ovens vent hole a few years ago with no issues besides a more economical oven.
The vent is a 2" diameter vent pipe that leads from the oven roof to under the element drip dishes.
I press fit a piece of tin foil over the pipe hole. Do at your own discretion , I can say my oven has not been damaged. I estimate the vent hole causes about 30% more energy consumption , as the heat loss is continual.
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Save gas
Ride a Mtn bike for errands exercise entertainment and outright fun
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