Cheap way to cool

I do not have the money to buy an air conditioner right now but my room gets really hot (90 degrees) during the day. What are some cost effective ways to cool down my room? I have a 465 cfm exhaust fan and some circulating fans but that is it in terms of ventilation. Any ideas?

MM, what I do is get a box fan, and have it pointed up at a angle, towards your light. I can get my plants damn near touching the light, without burning.

Try running your lights at night if at all possible, will help tremendously. Try to get everything causing heat separated from the grow...if your light doesn't have a cooltube search the forums for a DIY version.

Here's what I had to do...keeps my temps at 76
https://www.rollitup.org/general-marijuana-growing/89017-great-way-cool-your-hot.html

yeah i'm interested in this too

ganji2 said:

MM, what I do is get a box fan, and have it pointed up at a angle, towards your light. I can get my plants damn near touching the light, without burning.

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might try that, but i have limited space in my grow room , would those 6 inch clip on fans make much different in the overall temp if pointed at the light, not too bothered about how close i can get to the light more lowering overall

cookin said:

might try that, but i have limited space in my grow room , would those 6 inch clip on fans make much different in the overall temp if pointed at the light, not too bothered about how close i can get to the light more lowering overall

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Gotta get the hot air out of the room.

Twistyman said:

A fan blowing out at top..one blowing in at bottom...you can use frozen 2l soda bottles, in front of lower fan.... if really hot... ac is better...... luck

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ah right thats a good idea, i don't need to lower my temps that much and that just might work