tips for hot room

[Josedonjuan]

Does anyone have any tips for cooling down my 3'x6' room besides fans and cutting holes in my walls?

[LAB RAT]

Your limiting yourself to the expensive option portable air-con or an evaprotive cooler.
http://www.hipgallery.com/photopost2/data/500/new_cooler.JPG

this is my evaprotive cooler it cost me £50

[stewpadasso]

I have heard of putting cooling tubes on a HID.I seen some stuff on it at Overgrow.Would you not still need to cycle the air out of the room?I really think the only alt is cutting a hole and run venting to take out the old air.I will be watching this thread 4 ideas.

[stewpadasso]

Lab Rat:Can you elaborate on your grow closet setup?Do you have an exhuast fan(With filter?).Do you have an incoming air fan?What exactly does the evaprotive cooler do?

[gds]

the best way to keep a room cool is to vent your lights outside the room :)

[rangerdanger]

Plants need fresh air.
Plants "eat" CO2. When all CO2 in the air is gone, growth stops.

[Golden Avatar]

Adding to Rangers info, plants also grow 24 hours a day, so at least trickle extraction during lights off is advisable. As Ranger says, no ventilation, no growth.........

[LAB RAT]

Yes. I have a 5" toilet expell-air fan in the ceilling venting hot air into the attic, 3 /15mm holes drilled into my gable-end wall at a 45 degree angle (no light out no water in) this is for fresh air & finally two 4" vents on the inside of the closet wall plus the cooler.My bedroom window is also constantly open so the grow room is constantly drawing fresh air from both the 15mm holes(outside) & the vents(inside).

Even with all this my room temp fluctuates with outside temps.
The cooler works by putting ice in a drawer at the top & water in the side container then a fan blows onto the water.
The chemical reation of water evaporating cools the air still further combined with the melting ice it works exceptionally well & is cheaper but not as good as
an air con unit.

[stewpadasso]

LAB RAT
Do you always have the exhaust fan on or do you use a thermostat to control the temp?

[LAB RAT]

I have trouble keeping the temp down so my exaust fan runs 24/7
my temps fluctuate between 70-85f thats 22-29c

[WishIWasAHippie]

You could just stand in your grow room exhaling all day :D

That'll get you some CO2 :P

[HighBlueSkies]

What is an evaprotive cooler? Do they take alot of power to run, similar to a dehumidifier?

[meangreen]

They use water to chill air.In essence a fan with water cooling it.A waste of $ IMO.Get a stand alone 10000 btu a/c unit for $300-400 dollars.

http://www.bestportableairconditioners.com/p-pi-ct-27-pr-449/sunpentown-sunpentown-wa-1010e-portable-digital-air-conditioner-with-remote-10000-btu.html?zenid=fb02630e85dae358aa0c607bfc98deea

[LAB RAT]

Yes they are cheeper to run & buy than an A/C unit & work very well
my one also de-humidifies & osolates left & right.
Evaporative-Cooler=£50-$100

[stewpadasso]

A buddy of mine has a 2x4x8 room closet with an 400 HPS,He has an intake fan @95 CFM and an exhaust fan & 180 CFM.When the light is on he cant keep the temp below 100 degrees F.Is there a fan setup that will take this temp down or does he need an AC unit or evap cooler?Is it possible to go banannas with bigger fans and correct this problem?

[LAB RAT]

My advice to you is don't skimp on money.
If your buddy can afford the A/C unit get it, it works better.
If he's on a budget an evaporative cooler will work as well providing
he has good flo through ventilation.
The next item on my list is an A/C unit but they cost £400 in Britian thats
$800 in yank & it only a small portable one.

[geckopelli]

If you have electronic componets besides bulbs and sockets in the grow room (ballast, fan motors, etc.), remove them to a remote location.