Does the window sealing allow the window to open? January 14, 2025 16:33 Updated Yes, the provided window sealing kit allows the window to remain operable. Related articles How long does it take to install? What are the window dimensions required for installation? How do you insulate with the All-Weather 120V heat pump in the window? What about the top of the window that is moveable/slideable? Can I install this through the wall? What windows is the All-Weather 120V heat pump compatible with?