HEAT PROBLEMS in a 400w grow

BuffBuffPass

BuffBuffPass

Member

  • Just started my new closet grow tent setup a few days ago:

    Current strains:
    -Afgooey (Afghani #1 x Maui Haze)
    -Blueberry (Purple Thai x Afghan)
    -BC Kush (Afghan x Grapefruit) - not pictured (yet)
    -Blue Dream (Blueberry x Haze)
    -Jedi Deathstar (Jedi Kush x Deathstar) - not much info on this strain so genetics may not be 100% correct.
    -Sweet Kush (Sweet Tooth x OG Kush)

    All these were obtained from clones from local caregivers. Pest, mold and disease free of course.
    They are all in 2 gal buckets with organic soil mix.

    All grown with organic soil mix and FoxFarm nutes.

    These were started under 2x 65watt CFLs for 1 week. Now they are under 400w MH.
    During the week they were under the CFLs the temp was about 76-78 depending on the outside weather a bit.
    But now that they are under the 400w MH (about two feet from plants) it is sitting around 80-82, even with two box fans (both taped into the tent for intake and exhaust) and an oscillating fan. The space is only about 4x7x10

    Anyone have an idea of how to lower the temp to at least below 80? I am getting another fan in a few days to blow over the top of the light for outtake. Just wishing it would snow because then the heat would go away for sure. But still have somewhat of a heat issue for now unfortunately.
    Thanks!!!​


    ​

 
MrGhettoGrower

MrGhettoGrower

Well-Known Member
you need a pic and a fan blow between the plant
and light then you can put the light 14"-16" is
more idea for a 400 watter
 
ryan1918

ryan1918

Well-Known Member
Why don't you get a cheap $100 central air unit, one that you can program the temp in there to keep it cool, my plants are 1000x better from dropping the temps 20 degrees your yield will increase, buds will look better, and you will be much happier. I know that I won't have to worry about that much longer in michigan as I will be getting free central air from my window, Good luck!
 
mr2shim

mr2shim

Well-Known Member
ryan1918 said:
Why don't you get a cheap $100 central air unit, one that you can program the temp in there to keep it cool, my plants are 1000x better from dropping the temps 20 degrees your yield will increase, buds will look better, and you will be much happier. I know that I won't have to worry about that much longer in michigan as I will be getting free central air from my window, Good luck!
Click to expand...
Again? A $100 Central air unit? Where did you find one that cheap? Do you even know what central air is?! The ONLY kind of air conditioner you're going to find that cheap are WINDOW a/c's which is NOT the same thing as a central air unit. Come on man. Why do you keep trying to give advice if you have no idea what you're talking about? I have to go behind you and correct your errors. It's getting rather old.
 
BuffBuffPass

BuffBuffPass

Member
I got a 12000 btu window ac unit. hopefully that will cool off the ambient room temp and bring in
cold air instead of blowing the hot air around. also I was wondering if I should worry about humidity? im in Colorado and its 20-28% humidity. do I need a humidifier?
 
ryan1918

ryan1918

Well-Known Member
mr2shim said:
Again? A $100 Central air unit? Where did you find one that cheap? Do you even know what central air is?! The ONLY kind of air conditioner you're going to find that cheap are WINDOW a/c's which is NOT the same thing as a central air unit. Come on man. Why do you keep trying to give advice if you have no idea what you're talking about? I have to go behind you and correct your errors. It's getting rather old.
Click to expand...
I meant a/c unit not central air, sorry It was the weed.
 
ryan1918

ryan1918

Well-Known Member
BuffBuffPass said:
I got a 12000 btu window ac unit. hopefully that will cool off the ambient room temp and bring in
cold air instead of blowing the hot air around. also I was wondering if I should worry about humidity? im in Colorado and its 20-28% humidity. do I need a humidifier?
Click to expand...
It will a ton, I replaced my 5,000 with a 12,000 and I can get temps down to 70 with 3200 watt's going, I believe it should be around 40-50% I know mine is at 45-55% which I believe 51% is considered high, I know the a/c does change the room very much so.
 
BuffBuffPass

BuffBuffPass

Member
sweet. I will see how low i can drop the temperature before I add humidity to the room. but I will probably get a cheap humidifier and bring humidity up to ~40%
 
BuffBuffPass

BuffBuffPass

Member
Blowing cold air from the ac unit into the tent. With the ac unit I have the temp down to 75.5-76.2f with lights on. But now im worried about humidity. Has anyone ever used a humidifier?
 
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