I have a large sliding window that is 53 inches top to bottom and I want to install a portable air conditioning unit. The kind that don't sit in the windows but vent to the window. The window exhausting expander thing that come with these units seem to never be large enough.
Can I just use some plexi-glass or something to extend the extender or is there a better way?
Update: I found one large sliding window vent kit, but I think its just for edgestar ac units and I'd rather not have to buy such a kit if I can get a good seal some other way.