I have a small grow room and typically only grown one plant at a time with a 250w HPS, but still gets hot (low 90s..way too hot). I'm considering getting a cool tube HPS and have ventilation run into the wall through a small hole that I could fix when I move out. Ceiling is not much of an option as it eliminates a stealthy grow.

My main question is, does anyone see running it into a wall a problem? i might have to go into the attic and make sure there is a place for the heat to escape the wall.. This damn house has bad A/C and the summer has been too hot, which forces me to only grow during the cooler months.
keithxs Reviewed by keithxs on . Grow room is too hot. Would running heat into a wall work? I have a small grow room and typically only grown one plant at a time with a 250w HPS, but still gets hot (low 90s..way too hot). I'm considering getting a cool tube HPS and have ventilation run into the wall through a small hole that I could fix when I move out. Ceiling is not much of an option as it eliminates a stealthy grow. My main question is, does anyone see running it into a wall a problem? i might have to go into the attic and make sure there is a place for the heat to escape the Rating: 5