New here...
Anyway, I rent a property on an old farm, so I can't make any building mods. I also ran my forge through a window. I used an old box fan to help pull the smoke out the back.
My forge sits about three feet from the window and has a sloping hood that extends down from the top of the window to the firepot. I've used it several times a week for months with no problems. Works great.
I'd post pics, but I just broke it down in preperation for a move. My traveling forge is now my main forge until I get a new place in Charlottesville.
Good work on that design.
Paul Fritz