SPLFreak808
Well-Known Member
Whats behind the a/c? Which vents are which? @daloudpack
less exhaust when using an a/c
- Thread starter daloudpack
- Start date
daloudpack
Well-Known Member
ok so my grow room is a 4x4 room i built in my basement... the fans on the left are exhaust....
daloudpack
Well-Known Member
heres an old pic of when i first made it the wall ur looking at is where the back of the a/c is now 
MrStickyScissors
Well-Known Member
plus the humidity will get high if you dont run the exhaust
daloudpack
Well-Known Member
my humidity is @ 40%
SPLFreak808
Well-Known Member
I think it would be better if you air conditioned the basement through a window instead of that little room, then make sure you exhaust out a window. It would take longer to cool, but it should lower the temps. Then have your exhaust speed dial down the grow room.
daloudpack
Well-Known Member
the exhaust fans are blowing into my car garage , in a seperate room... smells kinda fruity in there lmao
daloudpack
Well-Known Member
see the thing is my basement has three seperate closed off rooms.... the main room where my grow room is, which is pretty huge.... then a garage, then a work shop..... my main room doesnt have any windows that lead to outside, they jst go to the other two rooms....
daloudpack
Well-Known Member
im gonna build a box around the back of my a/c and cut a hole in it run duct to my house heating vents... then a hole to run a hose to my drain, just havent got that far yet and moneys an issue right now
a senile fungus
Well-Known Member
The AC is pulling air out of grow room and dumping it into the room where its back is. Then you're pulling the hot air from where the back of AC is and pushing it back through the room...
That's what it looks like to me...
You need to find a way to remove the heat that the AC dumps.
That's what it looks like to me...
You need to find a way to remove the heat that the AC dumps.
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daloudpack
Well-Known Member
so if i take out the intake above my ac, then i wont be pulling the hot air from the a/c in right.... my passive intakes are on the back wall away from the a/c
SPLFreak808
Well-Known Member
You could try that! Dont forget to exhaust it with a fan lol. Also, c02 would help them out since your limited on fresh air
a senile fungus
Well-Known Member
https://www.icmag.com/ic/showthread.php?p=4000296
I built one of these this summer and it controlled my 4x8 tent with 2x gavita de's.
Look at how the tutorial redirects airflow around and through the unit. The key is controlling where the air goes.
PM if you need help, or tag me. Like I said, I built and trouble shooted one of these all summer
daloudpack
Well-Known Member
ok so i moved my 12 inch fan to face the other (blowing cold air away from the exaust) the air should be bouncing off the walls and circulating the entire room before exhausting now)instantly my temps wennttt lowwwwwww ... had to set my a/c at number 5 out of 9 , 9 being the coldest...now my temp/humidity is as follows.... tops closest to my hps and a/c 72 degrees/humidity really high at 67% toward back of the room temps 86 degrees /43% humidity.... got my tempature all in the right range but cant get it an even temp and humidity throughout the entire room....and humidity in the front is ridiculous compared to the back....
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daloudpack
Well-Known Member
gonna try putting the fan on swivel and see if i can balance it out
Terry385
Well-Known Member
daloudpack
Well-Known Member
awesom terry thanks alot added this to my watch list... also swiveling my fan made all the difference in the world with my a/c on its lowest speed but coldest setting so far under my hps is 78 and back ofthe room is 84 , gonna make sure its stable then drop it another few degrees if i can by switching it onto high and reducing the coldest if i have too
daloudpack
Well-Known Member
humidity also dropped to 40-50%
supchaka
Well-Known Member
The goal of running an AC unit is to have it come on as little as possible. Saves wear and tear on the unit and $ in electricity. What you want to do is actually reduce the exhaust flow a lot for starters. Say like 200cfm total. Then you time how often the AC cycles on. As you start tweaking your exhaust flow it will determine how long the AC runs. Too much exhaust and you're just blowing cold air out and making the AC run longer, creating more outside heat to the intake and the cycle continues. A kill-a-watt meter is useful for this because you just make your changes, reset the meter and look at it the next day, then make tweaks and reset it etc. There is a balance in there you will find the sweet spot for your setup.
FWIW I run 1200 watts exhausting through a 440cfm fan running on a speed control at only about 1/3 speed.
FWIW I run 1200 watts exhausting through a 440cfm fan running on a speed control at only about 1/3 speed.
New Age United
Well-Known Member
That's the beauty of a dual hose ac you don't even need an exhaust, I have no exhaust in my shed and my ac runs at the most for 11 minutes per hour. I never put 2 and 2 together your right less exhaust would probably make it easier for the ac to regulate temps.