Better a particle board in the window ...

As I have already written the other "HotAirStop" - 30 is for what is offered simply too much. Ne plastic wrap with a zip and a little Velcro is quite useless in theory be a nice idea, but in practice. It rustles with every gust of wind, the exhaust hose must not be too heavy, otherwise holds the not ... and if you still can close the window well, depends on the skill when gluing on ... therefore my tip: Measure Unhook windows, frames and the hardware store can cut a coated chipboard. The plate under wedge, n hole purely for exhaust hose and finished the thing. Cost point about 10. Anyone who wants can still sticking insulation in the form of foam or cork ...