Cant figure out how to lay it out.

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Gorillaglue4u

Well-Known Member
So ive been dealing with humidity spikes at lights off. I got a 6 inch fan exhausting out the tent back into the same room. I got a 4 inch fan ran threw the wall pulling air from another room in the house. Also have a wall mount isolating fan in the tent that moves quite a bit of air. The 6 inch fan is turned up half way the 4 inch fan is turned up a quarter of the way (both ac infinity fans).
I also have a dual hose portable ac unit with built in dehumidifier. So should i run the ac inside the tent ( there is room in there for it) or should i take the ac out of the tent and just cool the room the tent is in? If thats the best bet i could hook my 6 inch exhaust to one of the ports for the window fitting of the portable ac. The Manual says i can run a dual hose or i could run a single hose.

So to sum it up wheres the best place to place my portable air conditioner to help keep the tent cool and also keep humidity down.

Also lights are 2 hlg 650r if that makes a difference.
 
pulpoinspace

pulpoinspace

Well-Known Member
it doesnt really matter if the AC is in the lung or the tent. IDK the cfm of your fan but its probably moving all the air in that tent at least once every few minutes.
i gotta ask though, can you not exhaust out a window? that would be cheaper than trying to cool 1200w with a portable AC. also do you have your lights turn on in the evening when it gets cool and turn off in the morning when the suns coming out. this can reduce the temperature fluctuations that cause humidity spikes.
 
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Gorillaglue4u

Well-Known Member
pulpoinspace said:
it doesnt really matter if the AC is in the lung or the tent. IDK the cfm of your fan but its probably moving all the air in that tent at least once every few minutes.
i gotta ask though, can you not exhaust out a window? that would be cheaper than trying to cool 1200w with a portable AC. also do you have your lights turn on in the evening when it gets cool and turn off in the morning when the suns coming out. this can reduce the temperature fluctuations that cause humidity spikes.
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The portable ac will not have a problem cooling the room. But i can exhaust out the window but then i would have to put the ac unit outside the tent. I had a single hose ac a few years ago and it would take the air from the room where the plants would grow and then blow the air out the window which was unfiltered. The dual hose has one hose to exhaust the other hose pulls air from outside. If i put a 3rd exhaust hole into the window fitting it would look pretty obvious what was happening. So if i run the ac outside the tent i could turn the ac from a dual hose to single hose and use the other hole in window fitting to exhaust from my filter.

I got 2 options run the ac in the tent with dual hose or run the ac outside the tent and cool the room with the tent in it and exhaust the filtered air from the tent out the window.

And i will be running them at night time when i go back to work in a couple weeks but for now i have them turning on in the morning and running all day. Soon the lights will come on at 12 at night so when i get off work i can water them when the lights just turn on.
 
pulpoinspace

pulpoinspace

Well-Known Member
Gorillaglue4u said:
i will be running them at night time when i go back to work in a couple weeks but for now i have them turning on in the morning and running all day. Soon the lights will come on at 12 at night so when i get off work i can water them when the lights just turn on.
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i think you will find this fixes your problem. if you ran the lights at night and exhaust the hot humid air out the window you won't need the AC is what i mean

idk where you're at summer days here are 85F+. So i've always ran my lights at night. My house (and my grow tent) stay at around 75-80F during the day (lights off) and when the house starts to naturally cool off in the night the lights come on and the temperature stays about the same. Sometimes my lights on is actually cooler than my lights off because of cold nights and reluctance to run AC during the day.
 
JoeBlow5823

JoeBlow5823

Well-Known Member
Really depends where you live what will work better. I have temps from -20 to 110. Crazy humidity spikes in summer. For me its best to just run a completely controlled environment. When you get a week or two of 100% humidity, you need to have the ac and dehumidifier to handle that.

Really best to just not grow during summer.
 
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Gorillaglue4u

Well-Known Member
I grow year round just recently shut it down and redid my room. Worst case scenario i buy a dehumidifier an run at lights off. Thanks for the help everyone i think ill just order a dehumidifier and be done with all this.
 
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Gorillaglue4u

Well-Known Member
So i picked up a dehumidifier today. I have the dual hose ac inside the tent. The 6 inch fan still exhausting into the room the tent is in.
So should i run the dehumidifier inside the tent or in the room the tent is in.
 
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Nefrella

Well-Known Member
Gorillaglue4u said:
So i picked up a dehumidifier today. I have the dual hose ac inside the tent. The 6 inch fan still exhausting into the room the tent is in.
So should i run the dehumidifier inside the tent or in the room the tent is in.
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I would put it inside the tent, that's the environment you're wanting to control, but that's just me.
 
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Gorillaglue4u

Well-Known Member
Nefrella said:
I would put it inside the tent, that's the environment you're wanting to control, but that's just me.
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That was my thought as well i just thought i had read somewhere on here its better to keep the dehumidifier out of the tent. But its in there now.
 
jondamon

jondamon

Well-Known Member
I still don’t understand why you’re not going to exhaust your air out to somewhere else other than recirculating it within the room the grow is located.

my advice. Use the room your tent is in as your “lung” room and intake from this room.

exhaust your tent out of the lung room to another location. (Isn’t your intake coming from another room? Could you switch it?)

then you can control the lung room variables to control your tent variables.

rather than running more and more and more you can actually run less and probably get the same effect.
 
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Gorillaglue4u

Well-Known Member
jondamon said:
I still don’t understand why you’re not going to exhaust your air out to somewhere else other than recirculating it within the room the grow is located.

my advice. Use the room your tent is in as your “lung” room and intake from this room.

exhaust your tent out of the lung room to another location. (Isn’t your intake coming from another room? Could you switch it?)

then you can control the lung room variables to control your tent variables.

rather than running more and more and more you can actually run less and probably get the same effect.
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The wife said i cant vent the hot air into the living room lol but i can pull it in with a small van turned down low.
Also i cant vent it because i have the dual hose ac with the window fitting it the window. It would look suspicious with 3 holes. I would make lung room but im not sure how the dual hose ac would work pulling air from the lung room while exhausting into that same room. But if the ac would work like that i could then vent out the window
 
pulpoinspace

pulpoinspace

Well-Known Member
Gorillaglue4u said:
The wife said i cant vent the hot air into the living room lol but i can pull it in with a small van turned down low.
Also i cant vent it because i have the dual hose ac with the window fitting it the window. It would look suspicious with 3 holes. I would make lung room but im not sure how the dual hose ac would work pulling air from the lung room while exhausting into that same room. But if the ac would work like that i could then vent out the window
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what were saying is can u just hook the tent exhaust duct to the window fitting so the hot air blows directly out the window and ditch the AC? running an AC does very little when ur exhausting air to the outside. you have to decide if youre gonna run a sealed room with AC and CO2 or if you're gonna run air exchange to the outside.

what are your ambient temps and humidity in your house?
 
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Gorillaglue4u

Well-Known Member
pulpoinspace said:
what were saying is can u just hook the tent exhaust duct to the window fitting so the hot air blows directly out the window and ditch the AC? running an AC does very little when ur exhausting air to the outside. you have to decide if youre gonna run a sealed room with AC and CO2 or if you're gonna run air exchange.

what are your outside temps and humidity? just curious
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I could try and see what my temp is if i hooked it up to the ac exhaust. Im not running the ac right now and it sits around 85 degrees. I think in june july and August it may get a bit warm in there. There is a central ac vent in the room (not the tent). But i have not checked the temps outside the room. Im pulling fresh air from my living room in the bottom of the tent while exhausting out of the top. Ill give the exhaust a try tomorrow morning when i wake up and see what it sits at threw out the day.
 
jondamon

jondamon

Well-Known Member
Gorillaglue4u said:
I could try and see what my temp is if i hooked it up to the ac exhaust. Im not running the ac right now and it sits around 85 degrees. I think in june july and August it may get a bit warm in there. There is a central ac vent in the room (not the tent). But i have not checked the temps outside the room. Im pulling fresh air from my living room in the bottom of the tent while exhausting out of the top. Ill give the exhaust a try tomorrow morning when i wake up and see what it sits at threw out the day.
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so what we’re saying is

1. stop using your portable AC.

2. Rig your exhaust up to your window exhaust ports.

3. use your central AC when required to cool your home and cool your room.

4. switch your intake fan to be inside your room that you’re growing in.

this way your central AC controls the ambient temp in your room.

your intake fan uses the ambient air to intake to your tent.

Your exhaust now fitted to the window unit to exhaust hot air outside.

I would imagine that by doing this you should be able to control your temps between 75-85 using your controllable fan.

then when temps exceed your required setting the central AC should cool the room too meaning your intake is bringing in cooler air rather than dumping the hot air into your room.
 
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Gorillaglue4u

Well-Known Member
You don't think it would be better to leave my intake the way it is so it is bringing air from a room that dont have the lights running in there.
 
jondamon

jondamon

Well-Known Member
Gorillaglue4u said:
You don't think it would be better to leave my intake the way it is so it is bringing air from a room that dont have the lights running in there.
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By exhausting your air out the window you’ll be removing the heat from that room and not having to use AC to keep Your room cool.

Leave intake as it is and test ambient temps in the room over the next 24 hours.

if your ambient remains at a similar temp to the room your still intaking from then you can switch your intake to be inside the room with the grow in it.
 
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