whats the best co2 for the price?

[ghost83]

Im starting to look into using co2 in my grow. I've been growing for over 9 months and
i upgraded everything else to add to my yield. currently Im running at 2.5oz per plant with 4 weeks
veg time. I would like to keep increasing my yield and that's what made me so interested in using
co2. my local grow shop superior grower supply had a bag of co2 called exhale for 30
dollars a bag that each last about 3 months i believe. i want to buy two bags grow my veg tent
to start and another 2 for my flowering tent. i have two tents. one 3x3 and one 4x4.

my question is has anyone used this product and if they have seen any noticeable difference.
this is a hobby for me and i can't afford a high tech co2 system. Im so small time I don't
want to waste my money on such a system. if exhale is no good what are some other products
for co2 that people have seen work? i don't really wanna do the whole water sugar yeast thing

[TANKJR]

If heats not an issue then propane is the cheapest source to make CO2. Never used the stuff your thinkin of, but I use a very small propane torch in my flower room which is small...can't use it in the summer due to heat issues tho. I just run it for 15-30 mins when I'm home as it can be quite dangerous to leave it alone burning. Using it for veggin is a waste, IMHO. It does make a substantial improvement in flowering tho.

[ghost83]

i cant add any extra heat right now its too hot in there already.
i may Try that this winter tho.

[Mindcb]

i don't really wanna do the whole water sugar yeast thing
Why not? You could even make wine, genuine root beer, etc. in the process, ahah. :thumbsup: But I'm seriously wondering (in a non-condescending way, I'm truly curious) why you don't want to mess with that method?

[ghost83]

from what Im understanding its not that effective. plus in the 4x4 tent i believe i would need a lot of 2 liters

[nampra]

Co2 from a welding supply store make your own delivery system 150.00