Question about Co2

How many one gallon sugar and yeast co2 generators for a 4x4 grow tent?

The cheapest way that I know to provide co2 is briquet charcoal. Line up enough briquets in a small hitachi barbecue(and light one end of the line) so it will smolder until about two hours before the lights go out. I place a filter from a range hood over it to stop any soot. You need positive air exchange in the room because when the lights go out your plants will require o2 instead of co2. Sorry, but I know nothing about sugar and yeast co2 generators. It sounds like a good combo that can lead to mold and other nasty things. A bag of briquet charcoal can last for an entire grow in an 8x8ft grow space.

Yeast/Sugar Co2 generators have coma a long way and making them work well requires little effort. The 3 most important things are that you want to use a vapor lock to keep unwanted creepies out of the vessel (you can get them at any beer/wine making shop) and to submerge the tubing where the co2 comes out into another vessel of water to seal the unit. Secondly. I wrap a towel around the outside of the vessel (I use a carboy I bought from the beer/wine making shop - it holds 5+ gallons of the mixture) to keep light out of the vessel. The yeast are not fond of the light. Here is a link to my CO2 setup.

https://www.rollitup.org/members/little-tommy-26747/albums/some-my-pics-183/788330-co2-maker/

Wait til your first harvest, use some cash you get for "donations" for your meds and invest in a real co2 system. If you're smart and can use Ebay you can be @ 1500ppms for less than $300 (or an oz)

I have used a real CO2 injection system with a CO2 tank (30 #) and an electronic controller that allowed me to put it on a timer and I could regulate the pressure in the line. After about 6 months of dragging Tanks up and down the stairs of my basement and out to my car and to the place that I purchased my tanks from I was wore out. I started doing some reading and applied simple home brewing techniques to making a better, simpler CO2 system. I can see no difference between the two methods. If someone wants to get the CO2 burner/generators that run on propane still involve schlepping the tank around unless you get the natural gas system and pipe it into your natural gas line. That is too much money for my little medicinal grow. I have seen both worlds and prefer the simpler method. I was trying to illustrate that you do not have to spend a ton of money to get CO2 enrichment. I guess it really depends on the size of your grow. I only flower 6 plants at a time as I am bound by State mandated restraints in order to be legal.

Did you ever test your ppm's? Yeast containers are big question marks there

I wasn't saying your method won't work, I was saying that a legit setup isn't that much if you shop around and WILL be much more effective.

If yeast worked as well as tanks, professional growers would have huge vats set up for it. So one can assume one or both of the following to be true
1. too expensive in the long run
2. not effective

Once again, not saying you're don't know what's up, just saying wait a bit, save your money and do it up!

You could keep adding CFL's or you could save up and get a legit HID light you know?

Here's what I'm going to use:



Where I live it gets cold in the winter. I'm going to exhaust with a 200 cfm using a speed controller to run it no faster than I need to keep the tent the right temp out one window and the opposite window will be cracked with cold air passing over the little propane heater.

As a bonus my cat loves the radiant heat

Does that thing emit Co2 or something? Not sure how it's relevant.

Your cat looks like a tweak too, I think you may have a gas leak in your house

CO2 is generated when the burner is on the heater.

Jesus, open flames in the house scare me