A blueprint style technical diagram of a passive basement ventilation system with an inlet, outlet, and airflow arrows.

A detailed technical cross-section diagram of a DIY passive basement ventilation system. On the left wall, there is a basement window frame fitted with a solid sealing panel. Through this panel, two white ventilation pipes are installed. Pipe 1 (Inlet) comes from the outside with a 90-degree downward bend and runs vertically down inside the basement, ending 5 cm above a small condensation water tray on the floor. Pipe 2 (Outlet) is positioned at the top right of the window panel, turns immediately, and runs horizontally along the ceiling all the way to the back wall of the room, ending with a 5 cm gap from the back wall. Arrows show the airflow: cold fresh air coming down the inlet pipe to the floor, moving across the room, warming up, rising at the back wall, and entering the ceiling pipe to exit the window. Clean, blueprint style, clear setup, simple lines, easy to understand. Mehr sehen