I should have looked at the pictures you had, my bad. I also use something like your Evictor unit. I have 10 windows up in the cupola of the dome, 5 on each of the walls of the pentagon roof. I also have a ceiling fan running 24/7 upstairs hanging from the cupola. I can open the windows and the heat will naturally rise up, and with the fans help, push out the hot air at the top of the dome, and pull cooler air in from the lower windows.