high temps in my grow cab, can I get an opinion

desolation88

desolation88

Well-Known Member
I have a 30" x 30" x 30" cabinet, and for exhaust I have 2x 80mm 70.9 cfm pc fans and for intake I have 1 of the 80mm 70.9 and 1 120mm 60.9 cfm fan... 437watts of cfl in there and its vegging right now , so 24hr light, the room they're in is about 73degrees f. And the cab is staying at 88 degrees, do I need more exhaust to pull em down ? More intake ? What should I do, thx in advance for all posts and comments
 
SnapsProvolone

SnapsProvolone

Well-Known Member
Use all your fans installed up high in the cab to exhaust hot air.

Use twice as much passive vent area installed down low to allow cool intake air to flow in.
 
justugh

justugh

Well-Known Member
it is the CFLs buddy ..............after a certin point when u have so many the heat just builds up and staies

the best way to fix this is to replace some of the bulbs with LED .............take out 1/3 of the cfls and change to LED lights or strips .............your temp will drop down

your other choice is to decrease the temp on the intake ..........if 73 is coming at 88 then u need 65 to 60
 
desolation88

desolation88

Well-Known Member
Really ? Cuz my veg cab right next to it has the same number of bulbs just lower watts for my mothers, smaller space and only1exhaust and 1 intake stsys around 76-81 tops... so I don't see how it could be the number of bulbs
 
justugh

justugh

Well-Known Member
ok 1 bulb puts out 5 degrees but it has 8 inchs of air for the heat to go away in ..........now u have 2 bulbs that is 4 inchs of space so the heat stays longer ............now at a certin point the air flow u have going in there can not remove it as fast as it is made ..............i had this same trouble myself once i was near 14 bulbs

the new LED bulbs will allow u to keep your current set up and reduce the heat...............other wise u need to increase the CFM of the fan and lower the intake air temp ......or move over to a set of T5s
 
desolation88

desolation88

Well-Known Member
So I see the led you linked is a 12w bulb but I seen no info on the amount or cfl watts it replaces, or the amount of lumens. .. so if I used it would it replace my 42w bloom bulbs 1:1 or would I need 4 leds to be as good as 1 42w cfl ?
 
desolation88

desolation88

Well-Known Member
Or does the led bein 12w not mean shit ? Because of the price tag I never did any research. Could it be related only to the sq ft it covers? Sorry but in th e case of leds, I'm totally ignorant
 
justugh

justugh

Well-Known Member
LED are totally different then any other light.................since a LED can be desigined it not limited to how the engery passes tho the gasses..............here is the wiki link........the LED section will explain the light wave nano meter ...............the white light is to help offer a balance to the led and also encorage the plant to make resin glands to protect itself (white light is also known as a finishing light)

BloomBoss Spot Directions:
* Distance from plants: 6 to 18 inches
* Total Coverage Area: 4 square feet

BloomBoss Spot Specifications
* Power Consumption: 12w
* Output - Blue 430nm~470nm, Red 660nm and Full White

that is the info u asked me .........strait off the page the other part i can not answer for u but running on a 2x2 foot print to get maximum goodness from the light i would say it is equaled to 2 of your 43

LED are good for the depth they can get into your plant.........some of them can get up to 60 inches of effective depth (but those are the super exp LED)...........these are spot light models so safety 30 inches to 40 inches
 
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justugh

justugh

Well-Known Member
that light l linked u is ment for bloom (flowering)

in CFL terms it is the warm light (red light) ............it is not a Daylight bright(blue light)
 
desolation88

desolation88

Well-Known Member
Alright, thx for the info, I may have to check out an led... found som e that are xheaper then that, and at multiple numbers thnk ot would be as good as that one
 
cedarghost

cedarghost

Active Member
justugh said:
LED are totally different then any other light.................since a LED can be desigined it not limited to how the engery passes tho the gasses..............here is the wiki link........the LED section will explain the light wave nano meter ...............the white light is to help offer a balance to the led and also encorage the plant to make resin glands to protect itself (white light is also known as a finishing light)

BloomBoss Spot Directions:
* Distance from plants: 6 to 18 inches
* Total Coverage Area: 4 square feet

BloomBoss Spot Specifications
* Power Consumption: 12w
* Output - Blue 430nm~470nm, Red 660nm and Full White

that is the info u asked me .........strait off the page the other part i can not answer for u but running on a 2x2 foot print to get maximum goodness from the light i would say it is equaled to 2 of your 43

LED are good for the depth they can get into your plant.........some of them can get up to 60 inches of effective depth (but those are the super exp LED)...........these are spot light models so safety 30 inches to 40 inches
Click to expand...
Thanks for this. I am having similar heat issues with 300 watts of cfls in a small cabinet. Running about 86 degrees, which I know isn't real bad but I would like to lower it 6 to 8 degrees. My cab is 3 ft long by 2 ft deep by 2 1/2 foot high, so if I put one of these on either end and take out a couple of cfls it may do the trick. I have a sativa that is taking an eternity to flower and I wasn't sure if heat would contribute to that.
Here is my cab. The flower chamber is on the right side:[URL=http://s369.photobucket.com/user/cedarghost/media/Mobile%20Uploads/IMG_20140325_124223_zpswhjpoouv.jpg.html][/URL]
 
desolation88

desolation88

Well-Known Member
So Justugh, from what I'm understanding... my box is 30inches x 30inches... so 2 of those bloom boss leds plus msybe 4-6 cfls would take care of my box right? Since they will grow any number of plants on a 2foot x 2foot area ?
 
justugh

justugh

Well-Known Member
desolation88 said:
So Justugh, from what I'm understanding... my box is 30inches x 30inches... so 2 of those bloom boss leds plus msybe 4-6 cfls would take care of my box right? Since they will grow any number of plants on a 2foot x 2foot area ?
Click to expand...
for your bloom yes ............ 2 of those would do u great .........they are spot lights

as for your growth.............i have not found any LED that was designed for hat other then the UFOs and hanging lights
i did find this last night

http://www.amazon.com/LEDERTEK-Energy-replace-conventional-PLGCornLight6000K20WE27-CW/dp/B00J96Y070/ref=pd_rhf_gw_p_dnr_10

it is a 2200 lumen bulb .........running at 6000/6500k (day light Bright in CFL terms ) ...............the drawl back with this light is it is not designed to get Depth this verison is more like a CFL then anything else
 
justugh

justugh

Well-Known Member
cedarghost said:
There are 6 42 watt cfls and 4 14 watt cfls by the way.
Click to expand...
ciderghost...........that daylight one i just posted will do u fine with 3 of them that is 6600 lumens

as for the bloom i would think about flipping over to a UFO or a Pannel LED ........just because of the number of bulbs u have buying a bunch of the bloom ones like i posted that guy would be a waste in your case ...............it is more cost effective to get a pannel

http://www.amazon.com/Apollo-Horticulture-GL100LED-Spectrum-Growing/dp/B00FGG1HDM

i own this one myself i was very happy with the results ...................let me tell u guys both this your plants will look little different then u are use too ................the color of the leaves will be a Darker Green ....the Thickeness of the leaves will be thicker then now ...............and the best part if your plant is yellowing or gtting spots with the LED light they show up much clearer when u look in the area
 
jcommerce

jcommerce

Well-Known Member
SnapsProvolone said:
Use all your fans installed up high in the cab to exhaust hot air.

Use twice as much passive vent area installed down low to allow cool intake air to flow in.
Click to expand...
Ditto. Pulling air from high exhausts is much more efficient...not to mention the fans, as you have them setup, may be competing...thus reducing exchange in the room. I'd personally get a bigger inline fan and put a speed controller on it (as I have done it many times). The EcoPlus 6" (440 CFM) is under $100 on many websites and it will move A LOT more air than your current fans. With the speed controller ($25ish), you'll be able to dial it right in to you desired temp.

...and to Cedar, um 86F is bad my friend. You want 75 - 78F...anything above 80F will slow growth unless you're using co2 at 1200 - 1500ppm. Even then, it's 82 - 83F max.
 
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desolation88

desolation88

Well-Known Member
Aight justugh, thanks for all your input and help, talked it over with the mrs and think I'm gonna order 2 of those bloomboss bulbs, because cutting back on the cfls ill save the amount it cost me for leds on my electric bills withing 6-7months roughly... as for veg, the cab I'm talking abouy isn't for veg, but I just built it sunday night and still have to make my carbon filter mounts, 1more light trap, and finish sealing the box up to be light proof, so that os the only reason I'm vegging in it, outside of that I have a mother cab for vegging.
 
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