The under cabinet microwaves are also stove hoods for venting but a vent that blows back into the coach. I was also contimplating adding an outside vent because the smoke alarms goes off allot when cooking on the stove unless the fantastic fan is running which my wife cannot reach. Someone at Thor put allot a thought into this setup.
BTW, this was the first RV out of a dozen we've owned that did not have an outside venting stove hood.
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