regarding Co2 generator

streets

Well-Known Member
any suggestions on a Co2 generator? I'm looking for the best product for the best price! I have a Green Air brain to hook up to it, it doesn't have a monitor on it but it has timers for exhaust/humidity and Co2 gen. Also I am flowering in a 550 sq foot room and am only using 1/3 of it to grow currently but expansion will b happening quite soon, would it be wasteful to use the gen if the whole room isn't being used to it's full potential,i.e. Room full of plants? Thanks in advanced! I hope I posted this in the correct place.. Check my sig for pictures of the room,the new room I'm speaking of can be seen on the last page of the journal, I recently moved my op to upsize
 

streets

Well-Known Member
I got one a portable ac unit how hot are we talking? The green air brain I have has a plug for the generator and ac on one side and for exhaust and fans for the other side..
 

GodSlave

Active Member
I got one a portable ac unit how hot are we talking? The green air brain I have has a plug for the generator and ac on one side and for exhaust and fans for the other side..
Well, it depends. How many lights? I guess where talking about roughly a 23x23 room, so that's pretty big. If your growing in a basement it may not be too bad. The one AC unit you have will prob be enough unless you're using a ton of lights.
GS:leaf:
 

streets

Well-Known Member
I will have at minimum 9 600 watt lights. Maximum of 16 600 watt lights if I move my veg room to a different room in the house.its an 8000 btu air conditioner I'd say around 50 3.5 foot plants in flower
 

GodSlave

Active Member
Hmmm. Trial and error I guess. If one isn't enough, 2 should be, since the plants should be able to handle at least 90 deg with the CO2. I just recently upped the temps in my cabinet and I see max temps of 100-110 with no sign of any problems. Of course that is the max temp, Idk how long it stayed that hot, probably not long. Sustained temps of 100 might cause problems.
GS:leaf:
 

GodSlave

Active Member
Yeah, it's hot, but CO2 allows increased transpiration and heat speeds everything up. The plants can take it as long as the CO2 level is up there. Even without increased CO2 levels in the ambient air, outside grows see heat of 100 or better in some climates.

Are you talking about a brand of portable AC? If so, no, I can't help you there. I had window units when I was growing big.
GS:leaf:
 

AdamBlack760

Well-Known Member
they sell kits to convert to ng dont think its to much. The whole heat problems with co2gens is why i went with the water cooled unit. i use a water chiller to chill mine but i also use iceboxes. You can ajust the flame on the burmer from 12k btu to 36k btu per hour for your co2 needs. in my 12x12x8 room it probly runs a bout 10 to 15 min on the low setting. Im usualy on here twice a day so if you got any more ?
 

collective gardener

Well-Known Member
I will have at minimum 9 600 watt lights. Maximum of 16 600 watt lights if I move my veg room to a different room in the house.its an 8000 btu air conditioner I'd say around 50 3.5 foot plants in flower
Um...slightly off topic, but 8000 btu's seems quite small. We run twenty 1000 watt lights and it takes a 5 ton AC unit (60,000 btu's) to keep it around 85 (1200ppm CO2). We could get by with 4 tons, but it would be working pretty hard. Now, we have a totally sealed room (never go back to an exhaust fan), which depends on the AC for all cooling. 15 lights are air cooled, the rest are free hanging bulbs. The CO2 is tank fed w/sensor. With the sealed room, you really don't use much CO2. So, maybe do a heat calculation. On average, a 1000 watt non-air cooled light produces about 3000 btu. Food for thought. Good luck!
 

GodSlave

Active Member
I was thinking the 8k btu was too small also, but I figured adding another would come close. Now that you said you use 60k btu, wow, I never dreamed it would need that much.
GS:leaf:
 

streets

Well-Known Member
damnnn 60000 btu... I have all the heat from my bulbs being remoxed from the room.. With my heat for my house set at 72 my grow room never goes above 74.. I have 3 600 watters going and I don't even bother using ac in the winter. I'll have it set up soon so that the air goiing into the air cooled hoods will be drawn from outside source and put back directly outside. Thus non of the heat will be released because each light will have a 400 cfm inline fan pushing it out of the room. No need for all the $$$$ going to an a/c unit! Seems like ur shelling out alot of $ for that setup,considering m 8000 btu unit uses 10 amps and almost 1000 watts to run.. Not to mention my grow has central air installed for the summer time :)

back to topic... N e one have any suggestions on Co2 burners? I am unaware of the heat the burner gives off, this could be the reason you run a 5 ton a/c unit...
 

GodSlave

Active Member
Collective is using tank CO2. And he is running 20, count em 20, 1000 watters WOW. I think that's why he has so much heat.
 

streets

Well-Known Member
if they weren't cooled correctly I could see it needing all that, but otherwise no, than again I haven't had 20 lights running at once.. If the heat is directed outside the growroom, y would you ned 60000 btu?! That's insane.
 

GodSlave

Active Member
It does seem crazy. @ collective, not saying I don't believe you, it just seems like a crazy amount of btu's.
 

streets

Well-Known Member
makes sense if all the heat is staying in te room... But with that many lights seems wastful to not have the heat expelled from the room
 
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