The innovative “opelose” function – fresh air without energy loss
Windows with activPilot Comfort PAD can be closed, tilted and also “opelosed”. With this innovative opening function, the window sash is offset from the frame, creating a ventilation gap of about 6 mm all around. In "opelosed" position, the window lets fresh outside air in. As it flows into the room more slowly and evenly than with a tilted window, it heats up to room temperature faster. This prevents energy losses.