Ok, thanks for the help.

I've got some good news and some bad news if you may have been following my situation.

I may not need anything other than what I have now for lighting because a friend came over and looked at the grow and decided he could give me his (presumably old) 125watt HPS.

I might still pick up a few CFL's to add around the bud sites or just for helping even out the light, but with that I would have a problem.

The heat from the HPS is pretty intense for a small room like this, I've grown with them before and they were harsh on the plants in even remotely small places.

So fan will be needed, I'm not running one yet, and not really treating this grow as anything special, I'm actually hoping to buy some seeds online to really grow some stuff worth the trouble. Yet, if I get this light, and even without, I will need a fan. With the light, I'm likely to need a good fan for exhaust or intake, a good fan aimed directly at the planets, maybe rotating, and a good way to get the hot air out of the closet.

I can't imagine what to do other than to drill through the closet door. I have reflective sheeting to put up, but I'm not sure whether I should pretty much tape and seal off the whole closet where the walls go in, not even touching the door, but closing that and everything off entirely, as in, a wall of plastic/sheet material, with tape.

I would make a way to get in and out easily.

But I'm running a stealth grow and I need it to be relatively quiet. It can be relatively noisy in my room, because this computer is old and loud, but I definitely do not want to hear the wall vibrating walking up and down the hallway, that is directly outside or the same wall as, the back of the closet.

Someone suggested either cardboard layering, or finding (somehow) a bunch of old school plastic lunch trays, to mimic what they do when trying to build a homemade recording studio.

I would think to use rubber protectors and methods for grounding firmly, and dampening or insulating the noise at the connections to the wall. Would vibrations sound through just hanging on some wires?

Thanks for the reply. :jointsmile: