View Full Version : co2
PigLet
09-26-2009, 06:15 AM
i was thinking about picking up a 20lbs tank and a C.A.P REG1 regulator but i dont really know how to use co2 my room size is 15ftL 9ftW 8ftT any advice ya thanx in advance
SauceeMcGee
09-26-2009, 06:30 AM
Are you going to have an active circulation system that will circulate all the air in your room at least once every 2 mins?
If so, then additional CO2 is unneccessary
SMG
PigLet
09-26-2009, 07:21 AM
there's two oscillating fan and a 8in inline fan sucking hot air out is that enough
LOC NAR on probation
09-26-2009, 01:02 PM
Remember no CO2 in people living area's. If your room is in your house be very careful. Co2 can displace o2 and fill a house with enough to kill everything that breaths. It is heavier than air and will suffacate.
With that said. You have 1080 cubic feet or 360 cubic yards. Lucky PigLet. Your regulator will tell you how much you release into the room but a meter to go with that would do all the work. You would flood the room to 1500 ppm's and raise temps to 85 degrees. Make sure your rez water stays at 70 degrees. You need a big HPS light too. After about 4 hours flush the room with fresh air and then flood with co2 again. flush with fresh air again and then you don't need it during the dark cycle just fresh air.
Or if you just want extra. Run a hose from the regulator to above your plants and when the lights are on give them a slow leak of co2. fans help move it around good. Be careful I have seen some that waste a whole tank in one night cause they leaked to much.
You really need the meter control to go with it. That way you won't waste it.
PigLet
09-26-2009, 09:50 PM
what is a meter control how much does it cost, i thought the regulator with a timer does everything
killerweed420
09-26-2009, 11:26 PM
The meter box can be expensive, between 400 and $600. If you have one of those it will automatically turn the co2 on when needed.
LOC NAR on probation
09-27-2009, 12:56 PM
If it has a timer then you can figure the volume released and be good to go. Meter would just keep it perfect.
disrupt86
09-27-2009, 04:10 PM
they way i had mine set up with out a controller worked pretty well,i basically built a ring with the supplied clear air tubing and hung it from the roof right above plant level that way the co2 fell directly onto my plants,i had my exhaust fan and my oscilating fans set to the exact time as my co2 timer,when the co2 came on the exhaust and fans went off,the only thing running was my intake.i did three 15 min bursts.as soon as the lights came on,middle of the cycle and about an hour before lights out.i have my lights vented with ther own fan,so even when the co2 was being released the lights stayed cool and kept the temps down in the room.believe it or not but running high pressure lamps can easily bump the temps up 30 degrees in 15 mins and tank at least a half our to recover to your normal room temp.
disrupt86
09-27-2009, 04:14 PM
oh i might mention one other thing 2 you that i really really wish i had done.when i bought my tank and regulator,i think for $150 a piece soooooooooooo total being $300 plus tax. i could have got a co2 burner that runs on natural or propane.in my opinion much much more effective.that way your burner can run your whole lights on period and even if your exhaust takes most of it out the window a lot of co2 would be left behind.my friend does a sealed room with ac and a constant burner running and is pulling 2 to 3 times the weight i do.just something to consider i think c.a.p auctually makes a pretty cheap 3 burner for like $560 bucks.
Felixthecat
09-28-2009, 09:36 PM
when using a co2 burner don't it make a lot of heat
my room is only 14ftL 9ftW and 8ftH i'am running 4 600w u think i need a burner or when using burner how many degrees does it increase
disrupt86
09-29-2009, 02:36 AM
well to combat heat u could buya cheapo window mount a.c, if u can cut a whole out of the wall i think 1 1/2 ft by 2 feet,drill a hole in the bottom of the ac in the back.attach a half inch line leading to a bucket and it will drain all the water for u.im not sure how much of a heat increase there will be,i tried calling my friend to find out but he hasnt called me back yet.on the up side though you can run higher temps when using co2. also if u cant go knocking holes through the wall u could take the door off and install ply wood and u can cut a whole through that,put in a door knob and your off growin in a ac controlled room.your room dimensions are a good size and i personally think u would bennefit from a burner over co2 tanks,plus your back wont hurt as much from lugging them in and out of the house.
Felixthecat
09-29-2009, 02:54 AM
can't do it get too hot and my room is a sealed room i already have two holes,one hole for 8in can fan to suck hot air out & second hole for air cooled cant cut no more holes too many holes i think i just go with co2 tank w reg1 regulator and a timer thank for the advice
disrupt86
09-29-2009, 02:59 AM
ok, a 20 pound co2 tank ran in 3-15 min sessions is usually emptied in about 3 weeks,see if u can find a 80 pounder around the same price.they are around.maybe check craigslist.
Hasjman
09-29-2009, 06:27 AM
I've been trying to use co2 myself the way you are thinking about giving it a go. What I found out was that there is a significant increase in room temp and you don't know how much co2 is being dispersed.
The increase in heat outweighs the benefits of added co2, the plants get really stressed. So have the means to keep your room at the right temp.
Used the syringe co2 meters to check levels but the are only giving you an "at the moment" indication. After having to fill up tanks every few days, losing plants too stress I finally bought the proper stuff.
1 x PPM-1c CO2 Monitor / Controller (PPM-1c) = $399.95
1 x CO2-2e Climate Controller / CO2 Timer (CO2-2e) = $269.95
Excellent kit, defenitely worth the money. And of course a regulator with solenoid valve $150.
Give it a go with your primary plans, sometimes it's best to find things out by yourself. But starting with co2 is a whole different altogether.
disrupt86
09-29-2009, 08:33 AM
umm well yes heat goes up a little but plants do better with co2 regardless u can run higher temps with it.if u have problems after the fact than these are issues allready happening in your room but the small amount of added heat sets off the exsisting problems,u need to adapt 2 your changes.having a ppm gauge lets u know exactley how much ppm is being released.monitors are nice,maybe barrow one from a friend,waste a tank or 2 just trying to perfect your strategy.co2 ppm meters are nice,and help a lot but just like any thing else can foul up.learn your room and its requirements and u will never need 2 worry about wether or not a piece of electrical equipment has failed to register the proper amount of co2 in your room.
LOC NAR on probation
09-29-2009, 01:19 PM
The small co2 generator I'm looking at puts out 3 cubic feet per hour and runs 100 degrees cooler that others. It doesn't say what degrees it runs but with A/C and a timer I can figure it out for the size of the room. A meter would help a hole lot in the beginning just to tune in. you can put 3 more burners in at 30 bucks a piece to bring it up 12 cubic feet per hour for bigger rooms.
We are trying a sealed room now with a propane burner and it has helped in the last of flower but I think a little late next run in a few weeks will tell for sure. Already have A/C so heat is not a problem.
Does anyone know what the right temps you can bring it up to ? That is of coarse if you keep your water cool.
hoth2o
10-05-2009, 05:55 PM
I use a co2 burner. Much more efficient. Plus I dont want to be on a list of people buying co2.
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