85 degrees too hot?? + REP....

303

303

Well-Known Member
Yeah so its now summer, and its getting warm. fortunately I live in a place above 8000 feet and it rarely gets too warm. But we've had some record temps lately reaching 90!! Ouch! Well I keep the house set at 75 degrees, but the tent will climb to 85.5 sometimes 86.0. Jorge said plants can go into heat stress past 85. What should I do, tomorrow is supposed to be in the low 60s thank god. But for today, its a battle keeping that damn tent cool. I spray the foilage like every other hour to keep em cool. But I can't always be there to do this. Anyone? How do I keep my tent cool? I'm running a inline fan and carbon filter for exhaust and I have a box fan around the side of the tent for the intake. I don't think this is as effective as a blower squierelle fan would be. Perhaps should I get a duct fan? I'll attach a photo. + REP for intelligent help. :)
 

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StonerFishy

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have u thought of maybe getting a super cheap yard sale air conditioner for the tent? or i saw these sorta stand up portable air conditioners that are like 80 bucks, not really large enough for a living room but should eb perfect for a tent. hell it even purifies the air too lol
 
Bud Frosty

Bud Frosty

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I would attatch that filter right to the inline fan, doing away with that piece of hose. Any length of hose will restrict flow. Also, is that a reducer on the fan exhaust? If so, do away with it.

Good luck.
 
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paddy510

paddy510

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using a cooltube should help a bit
that fan with a filter on it would be a bit low on flow i reckon
what light are you using?
 
303

303

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Yeah I did consider one, but the window would have to remain open it looks like. I think they mount to the window which is no good. I have close by neighbors. Do you know if theres such thing as one that doesn't require being mounted in the window? Also, this is temporary. It RARELY ever gets this warm (90).
 
303

303

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Yes I thought it was excessive to have all that hose. I will cut all the slack off it. Have the filter right to the fan, although I'm unsure what you mean by the reducer? I'll try cutting and monitoring the temps. Thanks Frosty + REPPP For you! :)
 
smppro

smppro

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85 isnt the worst i did i grow that ranged between 85-92 one time and actually produced a decent amount of buds, they didnt taste like they should have but still grew. What kind of light are you using, if it is an hps then i would suggest i cooltube.
 
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StonerFishy

Well-Known Member
yeah i bought one for my grandfather lol and for my uncles grow but his is an entire room. they sell them at walmarts and they are air purifiers but if u look at one thats oval shaped it says theres a built in air conditioner. im sitting next to a large version of it. draws air from the inside cools it somehow and all u gotta do is dump the water out of it every day
 
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303

303

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Paddy its only a 400 watt MH light for now. I have the option for a 600 HPS during flower, but fuck.. Too hot in that tent. I may roll with 400HPS. Thanks for the reply!
 
Bud Frosty

Bud Frosty

Well-Known Member
303 said:
Yes I thought it was excessive to have all that hose. I will cut all the slack off it. Have the filter right to the fan, although I'm unsure what you mean by the reducer? I'll try cutting and monitoring the temps. Thanks Frosty + REPPP For you! :)
Click to expand...
Is the fan outlet the same diameter as the hose inside or is it reduced in size?
 
paddy510

paddy510

Well-Known Member
could try a small evaporative cooler, a lot cheaper than an A/C, should be good enough to drop temps a few degrees but will raise humidity also.
more airflow i reckon would be your best bet tho
even just pointing a a small fan at the light blowing the heat up to the exhaust should help a little
 
303

303

Well-Known Member
Its the same size 4".. I just cut about 6 feet of ducting out, and theres maybe a foot going to the inline fan
 
303

303

Well-Known Member
303 said:
Its the same size 4".. I just cut about 6 feet of ducting out, and theres maybe a foot going to the inline fan
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I like the idea of a small perhaps 6" desk fan pointed straight up to carry heat faster to the filter. Cutting it back already dropped 2 degrees. I think I might of got it dialed in. Thank you everyone.
 

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VictorVIcious

VictorVIcious

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You need to air cool the light in order to control the rest of the space, there are no short cuts. Do not spray them every hour to cool them down. Think about it, your in the hot sun and there is fog in the air, I bet you can't breath, the sweat stays on your skin. Same for your plants, except they transpire instead of perspiring. This is why you don't water the lawn at 2:00 in the afternoon. It would be a shame after all you have invested for you not to get the cool tube and finish the job. VV
 
Siddhartha

Siddhartha

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Why do people who grow indoors have to keep it below 85 degrees and people who grow outdoors have their plants see whatever it gets to outdoors,.. like 95 degrees?
 
itsgrowinglikeaweed

itsgrowinglikeaweed

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Siddhartha said:
Why do people who grow indoors have to keep it below 85 degrees and people who grow outdoors have their plants see whatever it gets to outdoors,.. like 95 degrees?
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Good point. 95+ is too hot, but anything under that is fine. My 1st grow temps were often in the 90's with no problems at all. If your topping out at 85 or anything below 90 your good. As long its not constantly in the 90's and bone dry I wouldn't worry about it at all.
You could definately use a better fan though. Those cheesy inline fans are not meant to pull (or push) air though a filter like that. Your probably not getting a 1/4 of the CFM rating of that fan. Get a centrifugal fan like > http://cgi.ebay.com/New-6-Inch-Inline-Exhaust-Cooling-Duct-Fan-Vent-Blower_W0QQitemZ280278994464QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item4141ee0e20&_trksid=p3286.c0.m14&_trkparms=72:1205|66:2|65:12|39:1|240:1318|301:1|293:1|294:50 Not that exact one though, I didn't research the price or the seller lol. just showing you the style. :)
Good luck.
 
Scyntra

Scyntra

Well-Known Member
Siddhartha said:
Why do people who grow indoors have to keep it below 85 degrees and people who grow outdoors have their plants see whatever it gets to outdoors,.. like 95 degrees?
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its simple really...marijuana grows at its best with the temp. in the high 70's... with indoor growing what you want to do is make it as close to perfect as you can. weather it be lights, soil, temp, ect ect...will it grow at 95 sure, but it will grow way better at 78..


as for OP. that fan it not doing its job, as others have said get a real one.

you can all ways AC the tent. DO NOT get a evap. cooler it will put your humidity way to high in that small of a place on big tight buds, that can end up as mold..
get a small personal ductless AC. most have at least 3 settings and you can fine tune it to your tent..now because of how a AC works (you know the heat has to go somewhere) just put on the outside and make you a duct to take in the cold air the room your tent is in will take the little heat and your tent will get the cold air..
 
303

303

Well-Known Member
Ok, so how do I cool my light? Its not a cool tube. I get 192 CFM for my inline fan. I don't believe its meant for cooling, its meant for extracting air which it does well, I've blown smoke inside and it sucks it up like a vacuum. I think I need a better intake fan instead of the box fan on the side of the tent. Yes I have seen sucessful grows when there was a real heat factor, but the quality and yield weren't optimal. I also don't want to heat stress my plants, and have possible sexual dysfunction. (hermies). A AC unit is out the question. So.. Another fan perhaps? I think I'm just going to have to deal with the 84.4 it averages at. It does down quite a bit at the lights out period. If anyone knows a way to cool my light ++++ REPP!!
 
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