you may be right about the dryer vent, a less turbulent form od ducting may be ideal, perhaps pvc with 45° elbows. i could also put Y's in it to combine two pipes to the vent, that may also help with the pressure issue as well. and im not talking about the spring loaded vents that are forced shut, i'd just use the cheapies so they would hang open at low speeds.
I like to err on the side of caution though. Half the point of this project is to save me money, not cost me cause i cooked something important. =P
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