Okay, let me clarify to make sure this is correct. I should take a piece of ply board that measures 46.5"X46.5", and paint it totally black. Then, I should cut a 6" hole and attach my ducting (by the way I do have a Canfan). Finally I should install blinds and then put the board in place, screwing it in place and it should just look like a window with blinds? A couple more questions...

1. How do I block the light coming out of my exhaust without making all kinds of bends in the ducting?

2. Will the blinds move with the air current? How do I fix this?

3. How much does my window have to be open to allow the air out? a small crack or all the way?

Thanks for the help buds its appreciated.