440watt tent vent

hey guys got a question. im getting a tent aprrox 3ftx1.8ftx5ft its going to be in my closet which is about 12ftx2ftx8ft. im looking to be using a 400watt HPS with cooltube, my problem is venting. will i be able to get away with blowing the exhaust at the other end of the room near the door? my windows can be open too? i just cant make holes.. any ideas thoughts or suggestions thanks