How much heat does a 600 watt light produce? I mean, the tent will be in a 8*9' room with 9 ft. ceiling. The bedroom door will be closed for security reasons. If I am venting the hot air from the tent into the room itself how much will it raise the temp in my bedroom? Just trying to get an idea of how much the light is going to affect the temp in the room. Maybe I dont even need an AC if I just run the lights mostly during the night with cool air being blown into the room? Will it heat up the hallway area outside my room because of the air flow under the door? My roomates dont mind me growing but if it makes the usptairs area really hot and starts affecting them they might start having problems with it.