Closet cooling

Hey everyone...

Im a small timer with a little closet setup doing a stadium show... 1000w hps hung vertically.. i have a turbo fan ($15 from HD) mounted directly behind it blowing air on the bulb.. doesnt seem to be working as well as i planned (go figure)

my temps are around 90=92 lights on, 72ish off, which doesnt seem to be affecting the plants at all, but i am currently just using that fan to blow the air out of the open closet door, and then a 16" ocelating fan blowing the air around.. it seems like it wouldnt be too easy to do a cool tube setup, because of the fact that its hung vertically and mounted to a wood shelf, so i wouldnt have any air going in to it, but exaust forcing it out..

1. would that even work?

2. any other suggestions on reducing temp?

closet is probably 6x8x2 (WxHxL)

or am i just high and none of this makes sense?

been runnin 1k hps for about 2 weeks and i notice it smells like hot piss in my closet? anyone know why?

It smells because you are burning the moisture out of your plants. The hotter it gets the worse it smells...also that smell will be out of control during flowering.

That 1000w HPS will require you to run that closet with the doors off completely. Even still you will probably need to air cool it unless your room and or house has an air conditioner compensating. 92 is a good 10 degrees too hot for any strain without co2. I used a 600w in a similar sized area and not only was it more than enough light but I had to run an air cooled hood on a blower and duct the heat out the bedroom that the closet was in due to no air conditioning. The 600w made enough heat to warm the entire apartment up to uncomfortable temperatures. Also consider that you should be exchanging the air in the room constantly.

My suggestion to kill 2 birds with 1 stone. Frame your closet with 2x4's and put a fiberboard panel on hingers for a door. Add a simple latch to keep it closed when closed. Or just keep the doors on the closet at cut in to them if you'd rather. Make holes for intake and exhaust. Get an inline blower or fan or whatever you want to ghettotech it with and move the air from inside the closet out one of the holes. If its an inline fan it doesnt matter what side its on as long as the airflow is going out of the closet. Get some ducting and duct that exhaust air as far away as you can so it won't mix with the fresh intake air that is in the room and passively being sucked through your intake hole. Get a small piece of screen door material and staple it around your intake hole. This will help keep lint, bugs, and other large particle crap from entering your grow as well as limit the light that escapes. The exhaust fan will cool your light and exchange the air enough for your plants to breathe happy. You can't go overkill on a blower. You can always buy a fan controller that will allow you to turn the speed down for $30. I would keep the window to this room open.

the way my townhouse is, if i were to vent outside, it would be right outside and odors are a no no... i run with the door open now, and theres no way the wife would let me run ducting all over the house. we have central ac, so i was thinking turn the ac vent into a duct and tun the air into the closet directly, then exaust it out to the room the closet is in. any thoughts? i dont want that room to get to ohot because there is a 250w MH that runs in the main part of the room, and i need to keep temps in that room down in general.. wife wont let me hack at the closet door either, so i can make a makeshift door, but i dont know that it would be as good at keeping light out from my veg light during the off hours of the closet. (rolling rock has the best of me right now, so in my head this all makes sense)


and remember its a bare bulb vertical, so no hood.

Throw an ozone generator in your vent to the outside.

i just dont know how to vent it straight outside. i dont want to leave a window open on floor level when im not home and i cant put a hole in a wall to the outside or roof. maybe a portable ac is the only thing i can do.

what id do is buy a 600w balast as 1000w seems like a bit of a over kill also your humidity will be really low in there with all that heat which could cause loads of problems during flowering.

spider mites love hot dry rooms anyway i think the only way you could carry on using a 1000 watter is get an ac unit.
good look

If you can, get a cool tube for your lamp too, that will help you extract the hot air from the lights.