Co2 monitor sensor ppm reading

jack06041989

Active Member
Yes that is true. but im thinking if you had your intake inside your room then it will just recycle your co2. the ONLY thing that gets vented and "wasted" is heat. The intake will just suck up your co2 and toss it right back into the room, mixed with cold air.
Are you sure that’s how it works ? So no co2 would be exhausted with the hot air?
 

ҖҗlegilizeitҗҖ

Well-Known Member
Are you sure that’s how it works ? So no co2 would be exhausted with the hot air?
Oh no, co2 would definitely get sucked out.
Really either way your losing co2
I'm not sure where you would lose less, but you ac isn't designed for this for sure.

I would reccomend looking for a window AC you and stick in the wall. Make sure it recycles air for the cool side, and extracts outside air to cool the radiator for the exhaust side.

Or buy a dual hose AC

Only way you can truly have a sealed, CO2 effecient room
 

jack06041989

Active Member
Oh no, co2 would definitely get sucked out.
Really either way your losing co2
I'm not sure where you would lose less, but you ac isn't designed for this for sure.

I would reccomend looking for a window AC you and stick in the wall. Make sure it recycles air for the cool side, and extracts outside air to cool the radiator for the exhaust side.

Or buy a dual hose AC

Only way you can truly have a sealed, CO2 effecient room
But surely what I’ve done will work ? No co2 will be sucked into the ac as the inlet is out the grow area. With the dual ac it has two hoses, one hose sucking air in from out the grow area and one exhausting hot air to outside the grow area right? And then the outlet for the cool air to come out is on the unit which would be inside the room... this is what I will have except instead of an inlet hose il have the back of the unit sticking out of the wall. Seems it has the same affect to me
 

ҖҗlegilizeitҗҖ

Well-Known Member
But surely what I’ve done will work ? No co2 will be sucked into the ac as the inlet is out the grow area. With the dual ac it has two hoses, one hose sucking air in from out the grow area and one exhausting hot air to outside the grow area right? And then the outlet for the cool air to come out is on the unit which would be inside the room... this is what I will have except instead of an inlet hose il have the back of the unit sticking out of the wall. Seems it has the same affect to me
Except when your AC pushes low CO2 air into your room, it will positively pressurize it, pushing out the CO2 enriched air faster from any other gaps and cracks.
This will also make things outside your grow room more smelly
It doesn't matter if it susks out CO2
Or pushes low co2 air in
Its just pushes or pull
Postive or negative pressure
Either way you will have issue maintaining your CO2 level
 

jack06041989

Active Member
Except when your AC pushes low CO2 air into your room, it will positively pressurize it, pushing out the CO2 enriched air faster from any other gaps and cracks.
This will also make things outside your grow room more smelly
It doesn't matter if it susks out CO2
Or pushes low co2 air in
Its just pushes or pull
Postive or negative pressure
Either way you will have issue maintaining your CO2 level
Ah yea I get ya, but how would a dual hose be any different to that ? Or any other ac for that matter confusing lol! My ac is only rigged to come on when the temp gets too hot so it’s not on all the time which will help a bit I guess?
 

all coco

Well-Known Member
Ah yea I get ya, but how would a dual hose be any different to that ? Or any other ac for that matter confusing lol! My ac is only rigged to come on when the temp gets too hot so it’s not on all the time which will help a bit I guess?
Mini split, condenser stays outside with refrigerant running inside to the evaporator.
 

jack06041989

Active Member
This should help
View attachment 4797585
[/QUOT yep yep I got it. The other hose on the dual only cools down the machine, so basically the same air is being sucked in and cooled, and with my way
ah right I got it so the other hose is only to cool the machine down on the dual, so the same air is being cooled and recycled, where as mine will constantly be pulling air from outside and inflate the room? Man that sucks I thought I had it sussed lol. I have exhaust fan in there do you think I could set it on a timer for like a minute at a time just to de pressurise the room? And hope it only sucks out mainly o2 at the top of the room as co2 will be lower
 

ҖҗlegilizeitҗҖ

Well-Known Member
ah right I got it so the other hose is only to cool the machine down on the dual, so the same air is being cooled and recycled, where as mine will constantly be pulling air from outside and inflate the room? Man that sucks I thought I had it sussed lol. I have exhaust fan in there do you think I could set it on a timer for like a minute at a time just to de pressurise the room? And hope it only sucks out mainly o2 at the top of the room as co2 will be lower
Sure can hope, but its impossible to say. And regardless you will wasting some money

Watch on buy, sell, trade groups or Facebook marketplace. There is always cheap window AC units on there that would work great for you
Thats where I got my $800 dual hose AC unit for $200
 

jack06041989

Active Member
Sure can hope, but its impossible to say. And regardless you will wasting some money

Watch on buy, sell, trade groups or Facebook marketplace. There is always cheap window AC units on there that would work great for you
Thats where I got my $800 dual hose AC unit for $200
Thanks for your help bro really appreciate it, guna see if I can get one cheap if I can’t il juts try and wing it lol
 

ҖҗlegilizeitҗҖ

Well-Known Member
Thanks for your help bro really appreciate it, guna see if I can get one cheap if I can’t il juts try and wing it lol
I bet there will be a ton of window AC units for less than $50 or $75 that would work for you if you can't find any dual hose units (just make sure they are split like the diagram i posted, some use indoor air to help cool the outside radiator and waste co2)
Good luck
 

jack06041989

Active Member
I bet there will be a ton of window AC units for less than $50 or $75 that would work for you if you can't find any dual hose units (just make sure they are split like the diagram i posted, some use indoor air to help cool the outside radiator and waste co2)
Good luck


This one would work right ?
 

jack06041989

Active Member
I bet there will be a ton of window AC units for less than $50 or $75 that would work for you if you can't find any dual hose units (just make sure they are split like the diagram i posted, some use indoor air to help cool the outside radiator and waste co2)
Good luck
Man they don’t sell window units here in the uk or dual ones ! Do you think I could get one shipped over and use and adapter or would they be too powerful for an adapter?
 

jack06041989

Active Member
I bet there will be a ton of window AC units for less than $50 or $75 that would work for you if you can't find any dual hose units (just make sure they are split like the diagram i posted, some use indoor air to help cool the outside radiator and waste co2)
Good luck
I could get a window one but how would it work putting it in my wall bro? Doesn’t it need to be on window to expel all the hot air outside?
 

ҖҗlegilizeitҗҖ

Well-Known Member
I could get a window one but how would it work putting it in my wall bro? Doesn’t it need to be on window to expel all the hot air outside?
The room around the grow room would take the heat then, you would have to expell into a big room that can disperse it, or you can then ventilate that room without worry of losing co2
 

getogrow

Well-Known Member
I could get a window one but how would it work putting it in my wall bro? Doesn’t it need to be on window to expel all the hot air outside?
Thats going to be hard to accomplish without using a window or a hole in the wall to the outside. BUT , if you can move enough air out of the back of unit to the outside then it would work fine. Your room inside a room would work but you would have to move that outside room air FAST as that ac will heat it up too much.
 

getogrow

Well-Known Member
Thats going to be hard to accomplish without using a window or a hole in the wall to the outside. BUT , if you can move enough air out of the back of unit to the outside then it would work fine. Your room inside a room would work but you would have to move that outside room air FAST as that ac will heat it up too much.
i found a flaw in my suggestion.... I was talking about using , say a 10"or 12" inline fan to suck all the heat out but the more i think about it, it will also pull air from your ac going the wrong way. I think the ac would be fighting itself the whole time. (i might be wrong because the holes dividing the 2 sections of ac unit are very small....only there for condensation)

So a duel vent ac is the only true way to keep er sealed ?
 

jack06041989

Active Member
The room around the grow room would take the heat then, you would have to expell into a big room that can disperse it, or you can then ventilate that room without worry of losing co2
So maybe I could put it in the wall and have a small extraction fan on the ceiling above where the ac is and vent it into the attic? Do the window ones blow hot air out or does the back of the unit juts get hot?
 

MisterKister

Well-Known Member
Get a co2 ppm meter and figure it out.. I have 2 air-airconditioners one is a duel hose the other is a single hose both running in the same tent and I haven't noticed a drop off of ppms the single hose is outside of the tent completely and I have a vent hose running into my tent thats attached on the blower
 
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