i've heard of people running 90 for temps with co2. is it ok to go as high as 95? im getting temps around 92-93 with my water cooled co2 generator. my 1/10 hp chiller doesnt seem to quite cool my 55 gal res enough. might just have to switch to bottles. im trying a sealed room with 4 600w hps. i have a 12,000 btu mini split ac for cooling and that also cant quite keep up. keeps freezing up on me. my plants are doing alright, but if they would be faster at lower temps with co2 i might just have to get bottles instead of the generator. this co2 setup shit aint cheap. i think i fucked up. yeah my shit is fine but i know it could be better with better temp control. doesnt help all the heat my dehumidfier produces as well.
how high can i let my temps get with co2
- Thread starter beer316
- Start date
pooncyooshovnick
Member
a mongo frog
Well-Known Member
id be scared. im scared when its 85. i know they say higher temps, but 90s id say no way.
show some pics if there doing great than i stand corrected.
show some pics if there doing great than i stand corrected.
thats what i was at myself. i think i got too many bends in my ducting. i just turned my lights down to 400w for now. no longer a sealed room either. i got fresh air coming in from outside when the lights are on since it's been cooler outside lately. uses more co2 but natural gas is cheap so im not too concerned. much cheaper than propane or refilling bottles. wish i could run my water cooling drain to waste but it uses way too much water.
http://www.skunkskool.com/showthread.php/12754-Let-s-talk-Co2-Temperatures-and-Sealed-Rooms!/page2? supposedly here people been getting good results with high temps. i know you NEED high levels of CO2 though in order to go that high. im just afraid to let it get 96 like some of these people.
Malevolence
New Member
I can't stop my grow box from hitting 95 at times... trying to come up with funds to get some ventilation other than leaving my stealth grow box wide the fuck open to whoever wants to look in my bedroom.
i'll have a few soon. they're usually 85 - 90 but went as high as 92 lately. my ppms stay from 1200-1800 according to me sentinel controller. no sign of curled leaves. end of 2nd week of flower. could also depend on strain i guess. these are chernobyl and y griega in the scrog.
night temps 80-85
i've read when using co2 and high temps it's also good to increase humidity for your plants to as much as 75%. im not sure if this applys to cannabis plants. i aim for 40 but my dehumidifier isnt big enough and it stays 50-55. hoping i wont hermie from heat. y griega is feminized so it has a higher chance. chernobyl is cloned. half fox farm half pro mix soil. botanicare nutrients along with fox farms big bloom. think im gonna keep my humidity low. i dont want any mold risk.
it's all soil. i dont do hydro in the summer except for cloning. i will get my unit back up and running soon when temps fall a bit more.
the risk is my co2 generator produces too much heat. it's a hydrogen pro made by hydro innovations. it is water cooled. it will not run unless water is flowing thru it because it gets so hot. you can run water thru it 2 ways; drain to waste, or recirculating. in using municiple water so drain to waste is too expensive. i have it recirculating in a 55 gallon barrel with a 1/10 hp chiller. coming colder weather soon the heat shouldnt be a problem. just sucks in the late spring, summer, and early fall. i could add another 55 gallon barrel. or just buy some co2 bottles with a regulator and such. it's just the whole point of me getting the generator was to avoid having to haul tanks to refill all the time. my generator just uses natural gas. even learned how easy it is to hard pipe a gas line. it's kinda cool ever since i started growing i went from almost 0 carpentry skills to knowing a few basics. internet also helps a lot.
got any old pc fans? maybe get a small one to blow on some ice which you may have to replace often. how big is it and what kind of lighting.
always wanted to try a stealth grow just for fun. you got any pics? i've never used cfls except for cloning. would like to test out a computer case stealth.