do you have any pics of how you put it in?
The following Link shows how I did mine:
My removable window air conditioner.
has louvered windows
, so with some modification, this might work as a permanent installation. You'd have to remove the glass louvers; but try to keep the window frame intact. Make the vertical "L" brackets long enough to attach to the window frame with screws or nuts & bolts. You probably won't have to radius cut the corners...
Mine is NOT a permanent installation. Also, I have discovered that 5000 BTU's is not adequate in a 16' uninsulated egg when you are in Palm Springs in June where it is [b]113* and no shade in sight.