co2 burner how do i set up room???

cxms

cxms

Member
hello everyone any input is greatly appreciated

i run growers choice 720s (12 of em) about 550 sqft room

hydro flood and drain

i suck cold air from outside to inside to cool the room (mini split is on order but 4 weeks out)

all set up on hydro x trolmaster controller

i just got a natural gas titan 8 burner and am setting it up.

will sucking air in blow up my room? (someone commented on my last post saying that i would by sucking air in and running a co2 bottle on a titan regulator and co2 controller. said im “pressurizing my room”) by sucking outside air in.

main question is.. will i blow my room up by doing this, cold air from out side and 8 burnee co2 generator.

also do i run a exhaust fan? all day? certain times? do i completely seal my room?
 
GBAUTO

GBAUTO

Well-Known Member
All a CO2 burner is, is a ventless propane heater.
I have 3 of them in my home and they definitely increase the ambient CO2 in the room.
Venting your grow space defeats having CO2 enrichment.
Seal up the room and get your HVAC in place.
 
Renfro

Renfro

Well-Known Member
cxms said:
i suck cold air from outside to inside to cool the room (mini split is on order but 4 weeks out)
Click to expand...
No point in running a CO2 generator when you are venting the space to control heat or humidity. You need to seal the room up and use an AC and dehumidifier to condition the air. Then you can run the CO2 generator effectively. Keep the vent system so you can vent once per day, say at lights out, to prevent ethylene gas buildup.
 
N

newbplantgrower420

Well-Known Member
GBAUTO said:
All a CO2 burner is, is a ventless propane heater.
I have 3 of them in my home and they definitely increase the ambient CO2 in the room.
Venting your grow space defeats having CO2 enrichment.
Seal up the room and get your HVAC in place.
Click to expand...
Renfro said:
No point in running a CO2 generator when you are venting the space to control heat or humidity. You need to seal the room up and use an AC and dehumidifier to condition the air. Then you can run the CO2 generator effectively. Keep the vent system so you can vent once per day, say at lights out, to prevent ethylene gas buildup.
Click to expand...
do carbon filters that are hooked up humidity/environmental controller at nights that are blowing outwards from the rm take out co2 from the room?

I remember reading something about the co2 molecules being so small that the carbon filter wouldnt push it out or is that some broscience lol.

ive always ran a sealed room with co2.

but im curious if i can just take out the dehumids and vent out at nights for humidity control with a carbon filter blowing outwards of the rm. my dehumids dont even work in daytime cause the splits are doing all the dehumidification so i wouldnt carbon filter vent in the daytime to waste all the co2 in the rm.
 
Renfro

Renfro

Well-Known Member
newbplantgrower420 said:
do carbon filters that are hooked up humidity/environmental controller at nights that are blowing outwards from the rm take out co2 from the room?
Click to expand...
If you exhaust air from the room, that air would contain the CO2 and the makeup air coming into the room will have a lower CO2 PPM. At night though (assuming you mean lights out) we aren't concerned with CO2 levels in the grow, the plants actually put out CO2 during the dark period and they use O2. So in a sealed grow room with a large biomass it is common to see high CO2 PPM like 2000+ after the dark period.
newbplantgrower420 said:
but im curious if i can just take out the dehumids and vent out at nights for humidity control with a carbon filter blowing outwards of the rm. my dehumids dont even work in daytime cause the splits are doing all the dehumidification so i wouldnt carbon filter vent in the daytime to waste all the co2 in the rm.
Click to expand...
You can vent during lights out for whatever reason you need to but remember the ambient RH% and temp may not always be suitable if pulling intake air from the outdoors. For example, when it's raining outside you may wanna switch to the dehu and not vent.
 
N

newbplantgrower420

Well-Known Member
Renfro said:
If you exhaust air from the room, that air would contain the CO2 and the makeup air coming into the room will have a lower CO2 PPM. At night though (assuming you mean lights out) we aren't concerned with CO2 levels in the grow, the plants actually put out CO2 during the dark period and they use O2. So in a sealed grow room with a large biomass it is common to see high CO2 PPM like 2000+ after the dark period.

You can vent during lights out for whatever reason you need to but remember the ambient RH% and temp may not always be suitable if pulling intake air from the outdoors. For example, when it's raining outside you may wanna switch to the dehu and not vent.
Click to expand...
what if i never pull air from outside but only push it out from my room with a carbon filter hooked up to a humidity controller instead of using dehumids at night?

there would be no co2 levels left after the night for next day cycle? so i would have to add more co2 via tank everyday?

just trying to figure out if theres a way to get rid of humidity at nights and have co2 involved in the grow... if there is a way
 
Renfro

Renfro

Well-Known Member
newbplantgrower420 said:
what if i never pull air from outside but only push it out from my room with a carbon filter hooked up to a humidity controller instead of using dehumids at night?
Click to expand...
With a passive intake vent coming from your living space that can work but it will raise the heating cost for the rest of the home. Air has to come into the room to replace the air going out, if you restrict the passive intake by making it pull through cracks and crevices then your system will suffer CFM loss.
newbplantgrower420 said:
there would be no co2 levels left after the night for next day cycle? so i would have to add more co2 via tank everyday?
Click to expand...
Pretty much.

No free ride when it comes to environmental control.
 
N

newbplantgrower420

Well-Known Member
Renfro said:
With a passive intake vent coming from your living space that can work but it will raise the heating cost for the rest of the home. Air has to come into the room to replace the air going out, if you restrict the passive intake by making it pull through cracks and crevices then your system will suffer CFM loss.

Pretty much.

No free ride when it comes to environmental control.
Click to expand...
ahhhh i see. thanks for the explain like im 5 explanation lol.

idea failed. operation keep the room fully sealed as is, is underway.
 
Renfro

Renfro

Well-Known Member
If you want to use a little vent action to help the dehumidifier out, the first 30 minutes after lights out is when the RH% tends to spike. The stomata are still open and the plants are still transpiring for a little while, the first 15-20 minutes after lights out you are hit with a triple whammy, plants putting out a lot of moisture, AC isn't fighting the lights so it's not pulling any water and the air is generally cooling and that causes the RH% to rise all on it's own. So if you have a vent system help out during that first 20 - 30 minutes after lights out it can really help the dehumidifier out and help mitigate any spike. The more biomass you have the bigger the spike potential. You may not notice it really until after stretch and the plants are filling the room, the dehu can't keep up with the triple whammy effect.
 
N

newbplantgrower420

Well-Known Member
Renfro said:
If you want to use a little vent action to help the dehumidifier out, the first 30 minutes after lights out is when the RH% tends to spike. The stomata are still open and the plants are still transpiring for a little while, the first 15-20 minutes after lights out you are hit with a triple whammy, plants putting out a lot of moisture, AC isn't fighting the lights so it's not pulling any water and the air is generally cooling and that causes the RH% to rise all on it's own. So if you have a vent system help out during that first 20 - 30 minutes after lights out it can really help the dehumidifier out and help mitigate any spike. The more biomass you have the bigger the spike potential. You may not notice it really until after stretch and the plants are filling the room, the dehu can't keep up with the triple whammy effect.
Click to expand...
i see. mine doesnt really spike after lights off judging off my hygrometer but its just spiked in general this run lol. i got 2 95 pint dehumids in a 20x20 rm and the humidity was mid 70s for 2 days in a row. im late in flower...Week 7 after flip. luckily i see no signs of pm... dodged a bullet.

so ive been just going in my room when lights are off and switching both splits to Dry just to hold off the humidity this run til i figure out what to do for next run. i was juggling ideas of getting rid of the dehumids and only venting out with a carbon filter but that didnt pan out. so im just going to have to do this until i add more pints of dehumidfication.
 
cxms

cxms

Member
should i completely eliminate sucking cold air in from outside to cool the room? it clicks one maybe 5 minutes per hour. its a lot cheaper then running 2 portable acs all 12 hours. and my 36k minisplit is on back order.


or is it fine ill just use a little more natural gas?
 
Lenin1917

Lenin1917

Well-Known Member
GBAUTO said:
All a CO2 burner is, is a ventless propane heater.
I have 3 of them in my home and they definitely increase the ambient CO2 in the room.
Venting your grow space defeats having CO2 enrichment.
Seal up the room and get your HVAC in place.
Click to expand...
I believe you may have just saved me a few hundred dollars on a planned future purchase. A propane heater is way cheaper than a co2 generator.

My house has oil burning heat. I wonder if that will do the same thing.
 
Gardenator

Gardenator

Well-Known Member
My room is sealed up and i have co2 enrichment, but at lights out every hour on the hour for the 12 hours off cycle my canfan kicks on and pulls the room for 15 minutes then shuts back off, i only do this at lights out time to avoid pulling the Co2 enriched air out of my room while lights are on and plants are using the Co2, besides this exhaust vent my room is completely sealed... hope this helps good luck n happy growing
 
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