Temps Maybe Too High?

[NatzTurnazHeadzBustaz]

I have a 4x4 Homebox. I have a 600 watt 8" Cool Tube with a 6" inline fan. The room that houses the Homebox temperature in the afternoon is usually around 84F. Will this be a problem? Do I need to find a way to cool this space before growing?

 

[ishnish]

in my experience, 85 is the max temp for the ladies. unless you use co2, but i have no experience with that.
so 84 is the temp in the room that the 4x4 thing is in?? whats the temp where the ladies reside?
open a window??
pics?
:48:

 

[NatzTurnazHeadzBustaz]

in my experience, 85 is the max temp for the ladies. unless you use co2, but i have no experience with that.
so 84 is the temp in the room that the 4x4 thing is in?? whats the temp where the ladies reside?
open a window??
pics?
:48:

84f is the temp inside of the closet not the homebox. I don't know what the temp is inside the Homebox right now. I noticed I didnt have an A/C vent inside the closet that houses the box so I was trying to see if my closet temps are too high to even consider trying to grow.

 

[dirtyolsouth]

Hi Natz,

It's great that you're taking a hard look at temp control before you get in too deep. Mid 80's is a bit too high ime for the best potency/trich production. If you can drop things into the mid to upper 70's you'll have great results. For my setup, a 9000btu A/C unit works pretty well.

I'm flowering in a 2 x 4 x 8 closet. If you put an A/C window unit in your room it will bring the temps down for you and your inline fan will pull enough cool air through a passive intake or the cracks in the door to keep things much cooler. If you can exhaust your hot air off the lights in the attic or outside a closet is totally do-able. I have a 1000w Quantum digital ballast with a Solar Max Dual Arc bulb for my main light. I also have a 6-lamp, 4 foot T5 fluorescent fixture mounted on the back wall for a side fill light source...

For temp control I have a window A/C unit in the bedroom where the closet is. My 1K bulb is in a Cool Tube reflector and I'm using 6" ventilation with a 630cfm Osterberg fan. For odor control I have a 40 lb. Can Filter mounted in my closet and attached to my cool tube. I route the output of the cool tube up through my closet into the attic where I run my Ostberg inline fan. The fan is inside a large cardboard box lined with sound absorption foam and the box is suspended by rubber straps from my roof joists to un-couple any vibrations and reduce noise transfer from the attic and I exhaust the scrubbed air into the attic.

As long as I keep the temps in the bedroom around 72, the closet stays around 76-78 degrees and the humidity stays around 45-55%, and that's even when I run my ballast at 1k with a Dual Arc which is a bit hotter than a HPS IME. The past week with high humidity and temps in the mid 90's it's been harder for my bedroom A/C to keep up. To keep temps comfortably in the mid 70's I dimmed my ballast back to 75% (750w) and it's been staying cooler and is plenty of light for that space.

I also put a post on a product called the Ice Box Heat Exchanger that may be worth looking at if you can't cut a hole in your closet to exhaust the heat. Here's a link to my current closet grow and there are a few pics of the setup.

http://www.marijuanapassion.com/forum/showthread.php?t=43035

Some growers due to heat shut down their bloom space setup for the summer and resume flowering in the fall when it's a lot easier to control temps. imho to keep a closet/tent grow cool A/C will have to be used probably half the year.

Good Luck!

 

[stevetosh]

In my experence, high temputures are hard to avoid in the summer months especally if you grow in an attic,however if you can increase your huimidity to 65% 75% your plants will handle temps of 90c with a very good yeild,yes CO2 also helps, if you have an air tight room, I know this , its what I have most summers. The last 2 weeks r/h should be reduced to 40%/50% so not to attract mold.