this is a bathroom i turned into my grow room, sooner or later my old lady is going to tell me to turn it back to a bathroom. lol. i have my own bathroom upstairs which the exhust vents to the top of the roof.there is an attic so i might be able to install that265 cfm there. then again thats my bathroom, iam going to have to share her bathroom for x-amount of weeks. this room is 7x8.