My Grow Box Is hovering around the mid 80's temp...can you help me? (see photo's)

Oh - Wanted to mention...

I got my oscillating fan from walmart in the automotive section, it is a dc operation fan, but I use a converter. The fan is 120 CFM's, it does a great job, I think I paid $9 for it on clearance, and the adapter is about $7 - So for $16 I got a 6" oscillating fan that does a pretty good job!

Actually...I have just added 4 cfl's to give light under my plants and my temp is up to 99-100degrees now. I've adjust the fan and that didn't help. Should I drill more holes to vent??

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Originally Posted by low_rdr

Oh - Wanted to mention...

I got my oscillating fan from walmart in the automotive section, it is a dc operation fan, but I use a converter. The fan is 120 CFM's, it does a great job, I think I paid $9 for it on clearance, and the adapter is about $7 - So for $16 I got a 6" oscillating fan that does a pretty good job!

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Holy! This fan is what I need!! Thanks for the tip! I'll head over to walmart and see if they have that fan in stock. that should help cool the chicks.

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Originally Posted by low_rdr

I've got tons of pics in my thread. Unfortunately during sampling I didn't take any photos of the harvest - I do have some photos of about a week before harvest, but I was low on meds so the butchering went pretty quickly from soil to water to start the process. Anyway, unless I get some really rare pics or I do another log, I won't be posting many more pictures. I'll be doing pics of the new setup on our new room within the next few months, at which point I should be doing about a pound per month, perpetual. I've been trying to select the best yielding plants with the best flavor/effect - Pineapple Express is a good one, but I'm trying some different stuff now, tons of strains. The white widow is going to be great, but its literally 1/4 the size of the rest of the plants and it's 4 weeks into flower, about 12" tall (something wrong there) - Looks REALLY healthy, and the entire top 25% is turning into a bud, but, it's actually lolipopped itself, after I topped it, so its growing 1 decent sized bud, and 1 half sized bud. I'm not impressed so whats really going to suck is in about 2 more weeks when I need that room for light - Short little girl might end up finishing early, which I don't want (you want WW to get nice and crystallized, I still harvest early, but not that early)

I'm rambling again. Anyway - The strain keeps changing, but I'm working on my own, its going to be pineapple express x big bid x c99 (or white widow) depending on which one comes out the best. The end result should be a decent yield with crystalized nuggets that have a mild psychological effect. Of course it will take several generations of the stable pheno I want, which I'm working on now. I have my PEX standard pheno, I'm waiting on my C99 pheno now, and the only pheno I want from the big bud is the growth rate.

I'll give you an example of big bud though - I have 1 flowering right now, along with 1 durban poison and 1 WW, they are all about 4 weeks old, 2 weeks into flower. I've had to tie the big bud down twice (HST), both times it had grown into the lights. The big bud is already starting to show pistils, and wrapping its top colas up, so far, they're all about 3.5" and getting larger by the day, last time I checked they were just under 3/4" in diameter. The WW is also showing signs of flowering, and it's 1/4 the size (HA). The durban poison is about 1/2 the size, or so, but very thin compared to the powerbud. The durban poison is coming out kinda like pineapple express with no training (I should have LST'd it)

All this is with CFL's - I might not have the lumens that an HPS has, but in my footprint, I have the perfect balance, and I;m producing smokable product within 6 flowering weeks :)

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Love the rambling my friend. That is SOOOO awesome that you're making your own recipe. That's all advanced/pro status. I did add 4 cfl lights under the plants and the heat is up to 100 degrees. I turned the fan into the exhaust and that didn't help. I'm thinking i may need more intake??? What do you think? I'll post up a photo from last night. In my garage, it's perfect temp at night with it being in mid 70's but inside the box is up to 99-100. I just can't figure this stuff out.

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Originally Posted by bitemybud

Looks like everything is under control here. Can't wait to see how this turns out.

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Still need help my friend....

Here are the photos i took last night after adding 4cfl's (equivelent to 400w). But i still need some help with the temp issues. :(

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HELP!!! IT'S HOT IN THIS BOX!!! 100 DEGREES!!

Hey Tol,

Sorry I don't drop in everyday anymore!

Okay, yes, increase the size of your intake, and make sure your exhaust is clear on the outside so your not blowing air at the wall - I like the under lighting, but all your doing with the aluminum hoods on those things is holding in more heat, get rid of them, and you'll notice the amount of light you have increases, it's not as focused, but you don't need focused light on your plants, just light.

make sure your not foilar feeding at those temps, you'll kill them quickly that way, you might also have to look into a cold air intake like I have to do (I vent cool air from outside during the winter, or from an AC unit during the summer)

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Originally Posted by low_rdr

Hey Tol,

Sorry I don't drop in everyday anymore!

Okay, yes, increase the size of your intake, and make sure your exhaust is clear on the outside so your not blowing air at the wall - I like the under lighting, but all your doing with the aluminum hoods on those things is holding in more heat, get rid of them, and you'll notice the amount of light you have increases, it's not as focused, but you don't need focused light on your plants, just light.

make sure your not foilar feeding at those temps, you'll kill them quickly that way, you might also have to look into a cold air intake like I have to do (I vent cool air from outside during the winter, or from an AC unit during the summer)

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All good my friend. I was asking anyone/everyone who can help with my heat issue. Thank you for your reply. I will drill more intake holes once my light turns on. Im drilling 5 additional 2" holes from the lower front of my box. Ill see how the temp comes out. My silent inline fan exhausts out (using duct) into a carbon filter. I stuck the inline fan and carbon filter on top of my box next to my ballast.

My inline fan exhausts 205cfm's and my box is about 192 cubic ft.

Whats the size of your inline fan? 4" or 6"? Also make sure you have good airflow going through the filter. When mine is on, I can put my hand up to it and feel a force pushing out just a bit, but close to 2 inches away. So make sure you've got good airflow. If your using a different style of filter, or an inline filter, just insure you've got proper air flow.

As far as those 2" holes - Why not just cut a vent? You can get the vent covers at walmart or any home hardware store dirt cheap, and it's easy to make a 4x8 or 4x12 passive air intake. I'm using 600 watts (actual watts) in a 3x3x18" box and I NEED a powered intake, otherwise I'll hit 120 degrees (have before) within minutes. However, with my powered air intake from a cool source, my box stays a steady 73 in the summer (from an air conditioner) and it's about 77 right now (on and off window cooling, but the air is temped by running over the lights to avoid any sort of shock to the plants, I think this was actually described in this thread, not sure)

At any rate, it does sound like your not pulling enough CFM's through your exhaust to expel the heat fast enough, but it does also sound like your not getting the intake you need. Have you put in an oscillating fan yet?

Just finished up the last of my pineapple express - Got another two weeks for the next crop (bah!) Good thing I've got WW and Powerbud in that one :D I've got Skunk and Critical Kali Mist coming in the next 4 weeks (YAY)... I've heard really good stuff about blue dream - Let me know how it turns out, I might pick up some auto beans - Just found out I'll have my new grow space by the end of feb :D