Building New Growroom

Mitus said:

In my opinion though... This thing has to be pulling air from inside my room... there is no way it could have such a strong air flow out of the exhaust hose if it wasnt.

-Mitus

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hey dude.. u might want to do some more research on ur AC.. AC's work by romoving the heat out of the air via a refrigerant coolant.. so its like air gets sucked in, blown over the radiator which has the coolant running thru it, the coolant removes the heat from the air then blows the now cooled air back in ur room.. so u wont be exhausting any co2 dude..

just get a mini split a/c unit. it does not exchange any outside air. they cost a little more but you will save on CO2. look on ebay

guff6387 said:

just get a mini split a/c unit. it does not exchange any outside air. they cost a little more but you will save on CO2. look on ebay

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I just asked BBB for the low down on AC sucking air out.. check in with his new electricity thread to see if he has any info.

guff6387 said:

just get a mini split a/c unit. it does not exchange any outside air. they cost a little more but you will save on CO2. look on ebay

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can you reccomend one?

streetlegal said:

hey dude.. u might want to do some more research on ur AC.. AC's work by romoving the heat out of the air via a refrigerant coolant.. so its like air gets sucked in, blown over the radiator which has the coolant running thru it, the coolant removes the heat from the air then blows the now cooled air back in ur room.. so u wont be exhausting any co2 dude..

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My A/C has a 5" exhaust hose comming out the back of it thought... and when I run the A/C with that exhaust leaving the grow room there is most definately negative pressure. the door is hard to open cuz of all the suction.

I have an Everstar 13,000 BTU portable a/c

I'm waiting for my Hydrogen 6" Ice Box to show up next week so I can see if I can cool the exhaust from the A/C unit and send it back in the room. My chiller isnt very powerful though, so we'll have to see if its enough to cool that air. If not, I may have to invest in a new A/C unit... or a stronger chiller and another ice box or two to really cool down the a/c exhaust and pretty much act as a 2nd a/c to the room.

Here is a few shot of some test runs going on

I ditched the three 25 gal res' and got one 70 gal res that I'm feeding and draing all three trays to. The pump feeds a 3/4" inch manifold that runs around the room with 2 drip lines per plant.

I've been running the A/C and letting it exhaust out of the room for about 4.5 hours now. The temp started at 64 degrees before the lights were on and without a/c... it caped out at about 75.5 and is now slowly going back down. So I'm certain that if i'm able to cool that a/c exhaust enough I'll be good to go!!

-Mitus

dank setup subscribed

Mitus said:

My A/C has a 5" exhaust hose comming out the back of it thought... and when I run the A/C with that exhaust leaving the grow room there is most definately negative pressure. the door is hard to open cuz of all the suction.

I have an Everstar 13,000 BTU portable a/c

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.. i found this info here
How do Portable Air Conditioners Work?
To know the working of portable air conditioners, you need to know - how does air conditioning work in the first place. Air conditioners simply pump out the warm air, process it, and pump it back as cool air. This is in contrast to the common myth that air conditioners suck the warm air and bring in cool air. Warm air is only recycled and brought in as cool air.

The working principle of portable air conditioners is identical to that of a refrigerator. It makes use of evaporation of coolants like freon, to provide cooling. The assembly consists of a compressor, a thermostat, cooling coils, insulation etc. The compressor compresses the freon gas which is initially a cold gas, to form the hot freon gas which flows through the insulation coils. It dissipates its heat while flowing and condenses into liquid freon. This liquid freon passes through an expansion valve where the evaporation takes place. The liquid freon again becomes cool freon gas and the cycle keeps on repeating. This cold gas is then made to pass through a set of several coils. The coils take away all the heat from the gas, thereby reducing the temperature of the room.

Portable air conditioners also work as dehumidifiers by taking excess water from the air. This water is then used to cool the cooling coils and then discharged through a hose. Recycling of water makes the portable air conditioners perform at a very high efficiency level. They also have a filter, that keeps away dirt, pollen etc.

So this info would suggest that the hot air comming from the exhaust is a fan cooling off the hot coils? I don't doubt that may be part of it, but since having the A/C on causes negative pressure in the room, it must be removing air from the room.

Mitus said:

So this info would suggest that the hot air comming from the exhaust is a fan cooling off the hot coils? I don't doubt that may be part of it, but since having the A/C on causes negative pressure in the room, it must be removing air from the room.

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yeh i know wot ur saying..
I think its best to get a definitive answer mitus before going to the trouble of ducting and cooloing that waste air, maybe email the company could get u an answer..
anywho, gl.

Well, I already own the chiller... the ice box was only $150, so if it does that job it's worth it . We'll see some time next week when it gets here.

Mitus said:

Well, I already own the chiller... the ice box was only $150, so if it does that job it's worth it . We'll see some time next week when it gets here.

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the thing is i got a portable ac too with co2 controller and reg in the mail, so ill be getting us both that answer mitus!! haha
And good looking build btw, its a bit too long for me to read from the beggining now tho! but it looks good man.

streetlegal said:

I think its best to get a definitive answer mitus before going to the trouble of ducting and cooloing that waste air, maybe email the company could get u an answer..

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I agree with this. I would email the A/C company and get an actual answer. Just because you don't mind spending money on parts, doesn't mean you should go through the work and complication of your setup for something that might not be necessary.

streetlegal said:

And good looking build btw, its a bit too long for me to read from the beggining now tho!

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You could always just look at the pics.

hey man all u need to do is run 2 30 amp wires to your grow room then add on 2 new 30 amp breakers in your panel box im sure it will look like shit unless you know what your doing but its not hard to do just hard to make look good p.s. 30 amp wire is like for your dryer 4 wires in one

jigfresh said:

I agree with this. I would email the A/C company and get an actual answer. Just because you don't mind spending money on parts, doesn't mean you should go through the work and complication of your setup for something that might not be necessary.

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Well I gotta tell ya, without contacting Everstar I'm 100% sure that thing expels air from the room. If I open the door to the room about 6-10 inches while the A/C is running, then let go... the door is immediately sucked closed.
It may be I need to find a portable a/c that 100% has a seal compressor... They have to have units that are meant for this sort of thing that don't cost a few grand...

smitty420420 said:

hey man all u need to do is run 2 30 amp wires to your grow room then add on 2 new 30 amp breakers in your panel box im sure it will look like shit unless you know what your doing but its not hard to do just hard to make look good p.s. 30 amp wire is like for your dryer 4 wires in one

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Thx boss, I've got the electrical covered now.
-Mitus

Mitus said:

Well I gotta tell ya, without contacting Everstar I'm 100% sure that thing expels air from the room. If I open the door to the room about 6-10 inches while the A/C is running, then let go... the door is immediately sucked closed.

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I totally hear what you are saying. I agree it is sucking air... it's a nice test with the door. I was more getting at the idea of fully understanding what is going on with the A/C before proceeding.

But then again... I would have read for about a month before I did the electrical you did with the experience you had.

So rock on with your expedient way... I love when people can get shit done. My projects usually last forever.

jigfresh said:

I totally hear what you are saying. I agree it is sucking air... it's a nice test with the door. I was more getting at the idea of fully understanding what is going on with the A/C before proceeding.

But then again... I would have read for about a month before I did the electrical you did with the experience you had.

So rock on with your expedient way... I love when people can get shit done. My projects usually last forever.

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BBB got back to me, he does have a HVAC licence too, he confirmed that no co2 is wasted and it recircs the air.. but ur door is getting sucked closed! baahhh
Maybe there is a defect with ur machine?
anyways ur prob sick of hearing bout AC's man so ill leave it at that, ill contact my own manufacturer, it a Dimplex 15000btu.

jigfresh said:

I totally hear what you are saying. I agree it is sucking air... it's a nice test with the door. I was more getting at the idea of fully understanding what is going on with the A/C before proceeding.

But then again... I would have read for about a month before I did the electrical you did with the experience you had.

So rock on with your expedient way... I love when people can get shit done. My projects usually last forever.

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I think I'm on the right path... the worst case scenario here I think is that I'll have to buy a new A/C or not run CO2.

-Mitus