Can a Dryer Vent Be Directed Upward?
The direction of a dryer vent is not as important as its length. In general, a shorter path is always better, because it takes less energy to push the air through and there is less surface area to collect moisture and lint. You may be able to find the specific recommended maximum vent length for your dryer in an owner's manual or on the manufacturer's website. Also, reduce the recommended length by 2.5 feet for each 45-degree turn and 5 feet for each 90-degree turn in your vent path.
