CO2 Generator With Sentinel CHHC-1 and 4x4 Tent

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Bob Smith

Well-Known Member
dakin3d said:
Damn Bob, gotta give you props for this setup... When I initially started reading, I have to admit, I was another doubter, but you really came through w/ some innovative solutions.

I just wanted to ask you how much propane are you actually using? I wouldn't want to fill it too often, so I'm thinking natural gas and just tap into my house line. THanks for the ebay link, as well, I've been looking for a reasonably priced unit.

Also wanted to ask, where did you purchase your Sentinel unit from? Did you get a good price on that, as well. I'm currently debating between CAP, Sentinel, and Harvest Master if you have any input, I would appreciate it.

Last, just wanted to ask if the inline that your using is a 'Valueline' brand, and at what rating? 400 cfm? I'm looking to invest into a few of these and don't really want to spend the $$$ on 'Vortex' as they are pricey as hell.

Happy Holidays, dak
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Already went through a 20# tank in about nine days - obviously nowhere near what I was shooting for, so need to go back to the drawing board with ideas - the easiest and simplest idea (in theory) would be tapping into my house natural gas line, which is just on the other side of the wall away from my generator (back of the stove is directly on the other side).

I got my Sentinel from Ebay, and it was $510 - best investment I've made for my grow yet, IMHO - nice to set it and forget it. Can't speak for the CAP or HM, but my Sentinel does (basically) everything I need, so I can tell you that I highly recommend it.

Yes, the 4" which is hooked up to the generator is a Valueline, but it's 170CFM - I have five of them (3 6" and 2 4"), and they all work great - can't compare to Vortex or anything else because I've never used them, but I've got no complaints about Valueline.

Check out businesslights.com for good prices on them.

Happy holidays to you as well :weed:
 
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Trubliever82

Member
This has to be the craziest shit ive ever took 30 min to read! ALL this for co2? I have a 2 4x4x8 tents hooked up to a co2 tank with a sentinal regulator and set the flow meter at .5 and it lasts awhile. Got it hooked up to a controller the monitors and kicks on when it drops below 1200ppm and off at 1500. Room seeled with 1000w w/ducting runing from outside through hood then back outside. Stays around 79 degrees. As far as hiding the tank for what reason? I got a keg at my house i use it for. Thats what i tell people anyways. Just seems crazy to me all that work and money and ur still not properly set up. Ur tank lasted 9 days? just hope u dont burn ur garage down or breathe in to much fumes
 
regrets

regrets

Well-Known Member
9 days, that ain't good man. You should be able to get a month easy for that sized room I would guess 2-3. So you are obviously wasting the majority of your energy in this system somehow. It could be possible that the weight of the co2 is more of an issue than I would have thought, you should try to reposition your tubing to suck the co2 out of the bottom somehow. It is a much wider opening and it is further from the burners, so you should be able to secure the tubing directly without leaving a gap. If you can turn down the power of your fan a bit (maybe with a dimmer) it may be in your best interest. Also I think that the overkill of burners is most definitely a problem with the current venting situation, it is just running too much all at once, creating more room for waste. I would think that the extra burners wouldn't be such a problem if the venting is through the bottom, as the co2 will naturally drop anyhow, but it may still be wasteful and need to be changed back to 1 or 2 burners. Good luck again though I hope you can fix this issue.
 
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Bob Smith

Well-Known Member
regrets said:
9 days, that ain't good man. You should be able to get a month easy for that sized room I would guess 2-3. So you are obviously wasting the majority of your energy in this system somehow. It could be possible that the weight of the co2 is more of an issue than I would have thought, you should try to reposition your tubing to suck the co2 out of the bottom somehow. It is a much wider opening and it is further from the burners, so you should be able to secure the tubing directly without leaving a gap. If you can turn down the power of your fan a bit (maybe with a dimmer) it may be in your best interest. Also I think that the overkill of burners is most definitely a problem with the current venting situation, it is just running too much all at once, creating more room for waste. I would think that the extra burners wouldn't be such a problem if the venting is through the bottom, as the co2 will naturally drop anyhow, but it may still be wasteful and need to be changed back to 1 or 2 burners. Good luck again though I hope you can fix this issue.
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Yeah, definitely wasting energy like a mofugger from the generator to the fan; that being said, the project's on hold for a bit until I figure out exactly what direction I'm taking with my grow show (and more generally, my life).

If I stay with just a 4x4 tent then I question whether it's even worth messing with it right now - the tanks are doing me fine until I figure out what direction I'm taking in terms of expansion.

If I do expand to an 8x8 tent with 4 600s covering 4 3x3 trays, then it'll make sense to start futzing around with it again, in which case I'll probably just run a splitter off of the natural gas line on the other side of the wall, and not have to worry as much about waste.

Also, my burner produces 15cu ft/hr, so theoretically, even running almost constantly during the twelve hours of lights on, it should've lasted me two weeks.

Obviously something is amiss somewhere, and I'll probably figure out what it is, but it's down there on my priority list as of now.


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Isit420yetog

Isit420yetog

New Member
Well Bob, I’m just now reading this because I’ve been looking for a solution to the same problem. Did you ever figure out a better way that was more efficient?
 
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ricman

Well-Known Member
Isit420yetog said:
Well Bob, I’m just now reading this because I’ve been looking for a solution to the same problem. Did you ever figure out a better way that was more efficient?
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sorry to bust your bubble.....but this thread is 11 years old and Bob hasn't been on here in 6 years.
 
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