heat issues!!! please drop in and help

[sdholic]

hey folks,

so im currently germinating 5 barney's farm blue cheese beans. i have my grow cab up and running and set it up for a test run to check temps. room temp is generally 70-75ish here in socal- i dont use AC-costs too much. grow cab temps after 20 mins were 96!!!! obviously this wont cut it. humidity is in the 35-55% range.

i have:
98 cfm comp fan for exhaust and passive intake
150 watt ecolight cfl with reflector
cab- 23"wide x 17"deep x 48" tall

check the pics (the little guys in there were from a failed bagseed test run- they are now dead RIP...)

i have exhausted my monetary resources so an exspensive inline or blower is not possible right now
ANY IDEAS????

 

[smppro]

You need a bigger exhaust fan for that space

 

[strangerdude562]

Like he said, a bigger exhaust fan and also add an oscillating fan to avoid keeping air motionless.

 

[buggs bunny]

buy a grow tent then it is easy

 

[titanium3g]

I know how using as little money as possible for a grow can make things difficult, but it just requires some research to find solution. If you cant find a cheap fan to exhaust adequately, buy yourself one of these

LASKO 655702 "STANLEY" 3-SPEED BLOWER FAN - BLACK /YELLOW

It is rated for 265 cfm, and is about the cheapest fan you will find to pull or push that much air. Many people are using them, I read up on it over at icmag.com , which is another great site for growing information.

Damn I need some bud!

 

[sdholic]

thanks for the input guys. So is the general decision i need give or take 250 cfm for this space? seems ridiculous since the space is only 12 cubic ft. so the air would be exhausted 20 times a minute. is that just what it takes?

would this work?
http://www.businesslights.com/valueline-inch-centrifugal-inline-fan-p-2044.html

thanks again

 

[ganjamander]

get a pc fan for the bottom and have it as the intake get one what is AC so you dont need a diy converter. with the exhust out you should be ok hopefully

 

[sdholic]

what is AC

just talking about the southern california electric bill i get punished with monthly when i run the air conditioning.


thanks guys if anyone has any suggestions of specific inline fans under $100 that would be dope

thanks again

 

[dazed76]

lift the light up a foot and open up the top or make a square when u have money install an exhaust fan up there.

 

[jchesmore722]

ive heard that frozen bottles of water (a.ka. ICE) placed outside the box right near the fan intake can reduece tempuratures. it wouldnt be a permanent solution but it could definatly help.

im trying to build a grow box myself and its about half the size of yours.
i image that my light(150 watt HPS) is going to generate a large amount of heat in the space. The box is only about two feet tall and 1.5 ft width and depth.

I ve got a question as well,
would it be practical to attatch a heat sink to a light to cool it down?