When venting through a wall isn't an option and more creative solutions need to be considered; the 4 inch adjustable vertical window dryer vent might be the simple solution your searching for. For vertically sliding windows (up and down) there is the Window Dryer Vent.
The vertical window dryer vent is made with 24 gauge galvanized steel and has an aluminum back draft damper to prevent drafting from outdoors, it's the perfect solution if venting through the wall is not an option, or is undesirable. Simply place the vent in an open window, slide the side panels to fit the window opening (14inch - 50inch window), and close the window. Standard, low profile dryer vent caps add considerable resistance to airflow. So we designed this vent with an enlarged exterior hood to minimize airflow resistance.
This window vent can also be used to vent spray booths, laser engraving machines, exhaust fan blowers and virtually anything else with a 4" inch round exhaust.
In order to help our customers, keep out pests while their window vent is in use, we have decided to include a small removable screen with all window vent orders. Below is a quick video showing how to install one, using the Window Dryer Vent an example.
We designed the Window Dryer Vent so it could be permanently installed or be put in the window when in use and removed when not using. If you're going to be using the window dryer vent as a permanent solution and you live in harsh climates, we suggest you insulate it. In this article, we show how to insulate the window vent with rigid foam board insulation which is our preferred method. Then we describe insulation effectiveness, briefly discuss three common types of insulation, and end by describing how to adequately weather seal the vent.