Hot steamy nights

[Iwilldoit]

Nice idea, that may have worked for my window if I made it to fit from the front and slotted in, so to speak. I have two small strips of velcro along the centre gripping mine along with Stormguard E profile draft proofing tape that provides a tight seal and holds the Perspex and hose flange in place.

I find that the windows own rubber seal is enough to seal it but but it doesn't need to be completely air tight. Its only a bedroom big window opener and I offer it out sideways and and manover it back in to replace the side opener window. as the exhaust points at the opened window I was worried that it would do some sort of damage but it doesn't get hot in anyway at all, I didn't want to impede the flow in anyway by adding a 45 degree bend on the outside.