Temp Probs!!

[memaw]

Ok so as you all know its been getting hotter out in the US the past week, well since this weekend my room has been getting too damn hot!
I have it located in the attic as its the only place I can put it,

I need some advice because I thought I had everything under control but my exhaust fans have been running constantly during the day and the temp the past 2 days during the day have been 95-100f

I got 2 Dayton 265cfm fans 1 for intake 1 for exhaust, the exhaust I am using a homemade carbon filter *from someone elses post here on howto make it* They both goto vent holes in the roof!

Any ideas how I can get colder air in there? That intake fan should be more then enough no?

The room was setup kinda big, the pics you guys I posted is about half the room, if u turn the camera around youd see an identical space on the other side of the room. Thats not being used at this time (was for future use plus storage of all my ferts and stuff)

(Big pic) https://www.rollitup.org/marijuana-pics/file.php?n=4160&w=o

Thanks
Memaw

 

[beensmoking]

What About An A/c?

 

[memaw]

Mods please trash this thread, i moved it to the correct place in Indoors..

Thanks

 

[hearmenow]

Put some oscillating fans in there if you haven't already. Have it blowing over the tops of the plants. That should help lower at least a couple of degrees.

 

[pauliojr]

I say try and add some CO2 and then put an oscillating fan right up to those babies. Hopefully that would be enough to bring the temperature down a few degrees. 10-15 in your case!!.. I guess the basement would have been better for cooling purposes, but I know what ya mean about the temp outside is rising causing the grow rooms inside to get hotter as well. I loved the winter time because the plants would never go above 83 and now they have reached up to 94!!! More ventilation is definitely in order. Good luck!! Plants look good!

 

[smkpt]

id say try some fans or if you already have get a little portable a/c

 

[videoman40]

Hey....I agree with Pauliojr, you might want to try some co2, This would be a good use of financial resources.

Another point to consider is to change to a passive intake system. You said, "I got 2 Dayton 265cfm fans 1 for intake 1 for exhaust, "
This is a bad design.
Change that to two 265cfm fans onto exhaust and you now have 530cfm! Your intake(s) should be larger than your exhaust.
As you exhaust at 530cfm, it will automatically replenish the space with new air from your intake.

Alot is assumed here though, as your picture isn't that good. Have you closed off a section of your attic? Is your exhaust exiting the building? Is your intake from outside the building, or just from in the attic? This last point is most important, cause if your sucking in hot air from your attic to cool your plants, thats just a waste of time. I hope this helps.
Peace

 

[pauliojr]

Your intake(s) should be larger than your exhaust.

Not to be a dick and challenge you, but I have heard that the exhaust must be significantly larger then the intake. This way it is taking out more air that is sitting around. Please inform me if I am ill advised. JUST WHAT I HEARD MAN!!!

 

[videoman40]

Pauliojr....I am looking and can't find where I read it, but I do remember reading that the intakes should be 1.5 times larger than the exhaust.
Which kinda makes sense to me, you dont want to starve the fans, you want them spinning freely.
Too small of an intake hole, will cause backpressure, which can cause a 200cfm fan to only blow at 150 or 100cfm.
Peace

 

[skunkushybrid]

Yup, def' go with the co2. Not only will your plants be able to withstand temp's off 100f (if done with a pro' co2 set up), but they will also grow bigger and better than they would have done had you managed to merely control the temp'.

 

[babygro]

Not to be a dick and challenge you, but I have heard that the exhaust must be significantly larger then the intake. This way it is taking out more air that is sitting around. Please inform me if I am ill advised. JUST WHAT I HEARD MAN!!!

If you're talking about a passive intake system that's not correct. Your passive intake needs to be about 1.5 times larger than your active exhaust so you create 'negative pressure' in the growspace - this 'negative pressure' then helps the exhaust fan suck in air from the intake hole.

How can the active exhaust fan suck sufficent air through the growspace if the passive intake is 'smaller' than the exhaust?

 

[pauliojr]

If you're talking about a passive intake system that's not correct. Your passive intake needs to be about 1.5 times larger than your active exhaust so you create 'negative pressure' in the growspace - this 'negative pressure' then helps the exhaust fan suck in air from the intake hole.

How can the active exhaust fan suck sufficent air through the growspace if the passive intake is 'smaller' than the exhaust?

Hey just what I heard man. Glad everything is cleared!! Thanks.