East prompted to give a review by kucht when registering my hood vent.  It was easy enough to set up. I vented it through the wall and had to do a fairly short run with an immediate 90 out of the unit. This caused some back pressure (along with the secondary dampener on my exterior vent) it made a lot of noise so I taped open the vent on the hood and it’s working great now. Fairly quiet and efficient, stood up well to heavy stir frying tonight. Will have to wait and see about longevity. Happy with the purchase.