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View Full Version : how londg will co2 last?


DPoisen
08-21-2005, 02:57 PM
how long will 2kgs of co2 last in a small 3 plants grow cupboard?anyone? :confused:
Zandor
08-21-2005, 04:10 PM
http://www.hydroponics.net/learn/co2_calculator.asp

That is a calculator you may find helpful.
DPoisen
08-21-2005, 06:05 PM
thanks for that ZANDOR....

another question.
can i put a mh bulb in my sodium ballast if its the same wattage?
DPoisen
08-21-2005, 06:07 PM
that site doesnt work Zandor?
Zandor
08-21-2005, 08:39 PM
It just worked when I tried it again. :(


I just ran one of my rooms 7 x7x7 it said

Grow room area: 343 cubic feet
Amount of CO2 required: 0.6174 cubic feet
On time: 9.26 minutes

At this flow rate:
If you are using a 20 pound CO2 bottle with a regulator, it will last 43.7 hours.
If you have a CO2 Generator a 5 gallon propane tank will last 135 hours

that is correct, 1800PPM at a rate of 4CFH for my tank CO²

Sorry if it did not work for you.
DPoisen
08-22-2005, 04:39 PM
thats has helped,thanks bro
can i put a mh bulb into a sodium ballast if its the same wattage?
DPoisen
08-22-2005, 04:45 PM
still hast worked for me zandor....!
ok my room is small with 3 plants and is 3 feet x3 feetx 7 height.
could you let me know what that works out to dude?
i have a small co2 cylinder that holds 2kgs of gas,with no fittings,so how will i work out at what speed will let the right amount out?
Zandor
08-22-2005, 05:14 PM
still hast worked for me zandor....!
ok my room is small with 3 plants and is 3 feet x3 feetx 7 height.
could you let me know what that works out to dude?
i have a small co2 cylinder that holds 2kgs of gas,with no fittings,so how will i work out at what speed will let the right amount out?
You need to get the regulator and timmer then. Should cost between 75.00 and 140.00 bucks usd. You can get them on eBay for cheep. You use that to regulate the flow and timer to turn the flow off and on. You just caculate how long it needs to run.

When you are using CO² turn off your vents, you don't want to vent out the gas.
DPoisen
08-22-2005, 05:18 PM
will do,thanks man.
appreciate the help
DPoisen
08-22-2005, 05:26 PM
http://www.mdhydro.com/ht-light-bulbs.html

zandor ,what do you think about this argosun gold bulb for veg and flowering???