Ive been struggling with this problem since day one, my grow room is too hot. I finally put an air conditioner with a pipe going to it (you can see the pic), and this solved the problem mostly. Recently however, the air conditioner has been freezing up almost every day, and blows no cold air out, freezing my plants growth.... What is a good way to get around this problem (if there are any ways to do it without draining the AC, which ive tried a few times), or alternate ways to cool a closet. Its not the temp of the attic, but the heat given off by the light...

Thanks

First off ... you didn't mention how hot the room gets. Also, post your method of growing. Are you in soil, DWC, Aero, Flood & Drain ... ???

Vi

You must remove the hot air from the room. An exhaust fan in the room blowing out of a closed hole will do. Or many growers air-cool the light hood, and exhaust the hot air from the lamp directly out of the room.

HTH

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To ViRedd, you can see my set up in the pics, it hasent changed... The room gets to about 90-95 degrees sometimes

What you can also see is that i have no fixture for my bulb, its just dangling there....

Does an exaust fan make that much of a difference? I guess ill get one then...

you're going to have to open the grow room door. get a light hood to help the lossage of light, you could also bring a couple of more plants in just outside the soon-to-be-opened door.

OK, after looking at your pics, you need a good reflector hood. For one thing, you are wasting the energy of your light by lighting up the walls and not the plants. A good reflector will concentrate the light energy down onto the plants.

Next, buy a good exhaust fan and some dryer ducting. The reflector hood will have two large 4" holes in it. One is for sucking the hot air of the grow room into the hood and across the light bulb (don't hook up any dryer ducting to that hole). The other hole is for exhausting the hot air out of the reflector, through the dryer ducting, into the exhaust fan, then out of the grow room. I use a Hurricane fan and draw the air through the reflector with that. Then where the ducting exits the grow room, I have hooked up a carbon filter to that, outside the grow room. This way, all the air that is vented out of the grow room is cleaned and has no odor. No odor is stealth! By the way ... this sounds a lot more complicated that it really is.

Here's a picture and prices for Hurricane fans. You'll need the 4" model. http://www.gchydro.com/detail.asp?product_id=xhurricane

Here's pictures of some hoods. You'll need to buy the glass to seal the bottom of the unit as well. The place where you buy the hood will also have the glass. And they will have the dryer ducting and clamps as well.
http://www.gchydro.com/hydrofarm/lig_hydrofarm.asp

Here's pictures of the carbon filter. You'll need the one with the 4" flange.
Carbonaire Carbon Filters

You can shop around on the Net, or try Ebay for better prices. But remember the old adage ... you get what you pay for. And there is no substitute for quality.

Vi

Wow dude thanks alot... Ive been looking for where to find a reflector without a bulb and ballast forever!

BUT, after looking at the sight i see they have no reflectors that fit 1500 watt metal halides... Do you know of any other sites with perhaps a bigger selection?

Thank you so much

Open the door to grow are while you get this sorted. don't let them suffer any more than you need to.

If I were you, I'd convert over to a 1000 watt HPS for your entire grow ... both vegging and bloom. The hoods will fit a 1000 watter just fine and the bulb is more fitting for growing MJ. Once the initial investment is made, its pretty much home free from there. Remember ... spend the extra to buy quality. It keeps the problems down as well as the fire danger.

Vi

Try flipping the lighting to where the lights are on at night, n come on later in day..Like my lighting is 18/6 where it cuts off at 1:00 in afternoon n cuts on at 7:00 pm,It cooler now..But I have a good ventilation.Lol..A hole in my wall..Leading to the attic..I get a brease early in the morning so theirfor my lights kinda warm my children at the same time..Lol..Lucky me..