Co2 burners ......need to verify some things ....stop in

hey

OK we all know Co2 good ........i moved out of a illegal area into a legal one so some of my methods are no longer need to be used like bottle Co2/mash buckets

so i am here to ask a few ?s about propain Co2 ......if i miss anything please add in i will return the favor by passing the info on to others i run across

1 does a Co2 burn cause the RH in the room to go UP (i heard someone say this once)
2 if u had to go between using tanks of propain or having a large 250/500 gallon tank put in what would u do
3 controllers who should i look at who should i avoid (tank was timer on a set release rate simple math)

if u need the basics
944 ft above sea lvl natural amount is only in 350ppm at best 200ppm avg
area is 24x36 feet with a 12 foot roof
shooting for 1200-1500 ppm

4 based off the size of the area what number of burners should i look at
5 is there a basic rule of thumb 1 burner adds so much Co2 ...something i can do the math double check/keep it for later expansions

6 i was running auto plants so my light table table was at 20/4 for the whole room with a natural ppm of 700ppm bummed it to 1500/2000 with tank/mash buckets....i plan to do some photos too now i have room to work does it hurt the plants if i keep the ppm at like 1200ppm with lights off for the flowering photos (not zoning off the area just use tents for the light blocking factor but keep the envo control all one big area to cut down on stuff)

7 i am assuming it is always best to hang the burner instead of setting on the floor( oxygen is lighter then Co2 u want it burning the O up to make Co2 )

now if i have missed anything please toss it in .....horror stories about burns .....simple improvements can do to get most out of gear

justugh said:

1 does a Co2 burn cause the RH in the room to go UP (i heard someone say this once)

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It does in my room with an 8 burner. Day and night cycles a bit higher then i was used to without supplementing. I just added more air movement, basically using those high velocity floor fans pointing straight up.

a mongo frog said:

It does in my room with an 8 burner. Day and night cycles a bit higher then i was used to without supplementing. I just added more air movement, basically using those high velocity floor fans pointing straight up.

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nice thanks for that ........the nartural RH is low so a burner is even more justifed as a good buy

a mongo frog said:

It does in my room with an 8 burner. Day and night cycles a bit higher then i was used to without supplementing. I just added more air movement, basically using those high velocity floor fans pointing straight up.

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I always heard CO2 would increase humidity and was actually kind of glad to find that out, but my particular burner doesn't raise my humidity. Running a propane burner myself, but it's only a 4 burner and not an 8 burner. Perhaps that's why? My room is 1280 cubic feet and when I placed my order the description said the burner would be enough, it raises the ppms in my room just fine but does absolutely nothing for me in terms of humidity. Although it's probably just because I have 2 15k window units, with my generator and 2 humidifiers I can't get my humidity over 25-30% unless I go in there with spray bottles every hour or so

OP, I use this controller and can't recommend it enough.

https://www.amazon.com/CO2Meter-RAD-0501-Monitor-Controller-Greenhouses/dp/B017847K76/ref=sr_1_1?ie=UTF8&qid=1496961453&sr=8-1&keywords=co2+controller

It'll even display the temps too, great controller and I'm very satisfied with it so far. All the other controllers in this price range aren't digital, this controller will do the same job as the more expensive ones.

You can figure out the size of your burner by calculating the cubic feet of your grow room, then the description of the unit should mention the amount of cubic feet it's able to handle. If I had to guess, you'll probably need an 8 burner or more for a room that size. Definitely want it to be hanging too because, like you pointed out, CO2 will sink to the bottom of the room eventually.

And as for your tank sizes, that's really a matter of personal preference. If you can have someone fill a 250+ gallon tank and the tank is in a discreet location then you should be fine. I have a 7 gallon tank that I fill as needed because it's more discreet since I'm growing in a shed. If I had someone come by to fill my 20 gallon tanks, eventually I'd get asked why I need propane in my shed and I can't have that haha. Sure it's a bit of a pain to have to get the thing filled every 5-7 days, but it's much better than having someone over here asking questions.

The products of combustion contain lots of water and it should be raising the humidity in the room as it is not vented

burning propane produces humidity.
your propane tank company will NOT fill the tank if they know its connected to a burner indoors this way, they just wont.
I use cap controllers work fine forever for me.

I use a four burner generator that cycles a few time a day for the win. I fill my little tank every three weeks or so keeping the ppm's between 600-1000 ppm, to keep an even 400-500 at every leaf surface during lights on.

chemphlegm said:

burning propane produces humidity.
your propane tank company will NOT fill the tank if they know its connected to a burner indoors this way, they just wont.
I use cap controllers work fine forever for me.

I use a four burner generator that cycles a few time a day for the win. I fill my little tank every three weeks or so keeping the ppm's between 600-1000 ppm, to keep an even 400-500 at every leaf surface during lights on.

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The supplier will fill tanks here and there is actually a code section. If it's a legal grow and a certified generator, no issue here at all.

I'd think it would be tough to convince them that a bbq is safe to burn indoors. co2 burners are just open flames burning propane inside of a semi sealed room..... insurance, etc....i dunno, prove it?

This is the B149 code re CO2 generator. I teach the course lol.
There is more but this should suffice lol


7.3 Carbon dioxide generators
7.3.1
A generator used in a greenhouse shall be certified for the application.
7.3.2
A generator used in a produce storage area shall take its combustion air from outside the storage area.

Not to mention the vent free fireplaces you guys use down there, same thing as a co2 generator except for the yellow CO filled flame lol. We said no to them here, now their just silly lol.

op says he's growing in a room not a greenhouse. I'm guessing the propane company would not hook up to one on the wall in the back bedroom aye?

chemphlegm said:

op says he's growing in a room not a greenhouse. I'm guessing the propane company would not hook up to one on the wall in the back bedroom aye?

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If the unit is cga certified they will hook them up and not just green houses. Ok so then go buy a ventless fireplace if they won't then, their approved right? What's the difference between the two? Or fill your own then but if it's a legal grow I probably would make sure it meets code, you know for insurance .

I changed from a liquid cooled electronic ignition and noticed the pilot alone provides a fair amount of c02 constantly, like an hour or so of working in there shows up on the meter impressively too. I wondered about hot water tanks

chemphlegm said:

I'd think it would be tough to convince them that a bbq is safe to burn indoors. co2 burners are just open flames burning propane inside of a semi sealed room..... insurance, etc....i dunno, prove it?

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legal to run open burners in homes,except bedrooms I have installed 100s

Ya a bedroom unit here has to be approved on rating plate and must have a thermostat, and yup direct vent .... fireplace or space heater . My favourite demo is a bic lighter it'll take my analyzer up to about 800 ppm lol. But it would never add that much to a room that you would get a reading unless it was a perfectly sealed room with no dilution and it would take a long time to reach 25 ppm. A lady died in her bathroom in a soaker tub burning a shit load of candles for a couple of hours with no dilution air.

chemphlegm said:

I changed from a liquid cooled electronic ignition and noticed the pilot alone provides a fair amount of c02 constantly, like an hour or so of working in there shows up on the meter impressively too. I wondered about hot water tanks

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Never seen a liquid cooled pilot? What was that on?

chemphlegm said:

op says he's growing in a room not a greenhouse. I'm guessing the propane company would not hook up to one on the wall in the back bedroom aye?

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this would be it own building for just growing ........no one living in it

Budley Doright said:

Never seen a liquid cooled pilot? What was that on?

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uh..

1)liquid cooled operation
2) electronic ignition= no pilot light
3 )tip over safety
4) low o2 shut down

used to have this unit^ with electronic ignition, now I have a unit with a pilot light thats on full time.

thumper60 said:

legal to run open burners in homes,except bedrooms I have installed 100s

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I know its legal but will a propane company fill a 500 gallon tank after they plumb it to your bedroom unit? big difference between a c02 generator for a marijuana grow hooked to a 500 gallon tank or a space heater fireplace install eh? I think so, the fireplaces are approved for this type of install and I'll still bet nobody comes up with a c02 generator for greenhouses that is approved for a bedroom grow op

my gas company will not fill these tanks unless they themselves plumbed it. just wondering of the install into a stoners bedroom....I bet not but could be as simple as maybe not in Michigan but prolly so in Tennessee lol

Budley Doright said:

Ya a bedroom unit here has to be approved on rating plate and must have a thermostat, and yup direct vent .... fireplace or space heater . My favourite demo is a bic lighter it'll take my analyzer up to about 800 ppm lol. But it would never add that much to a room that you would get a reading unless it was a perfectly sealed room with no dilution and it would take a long time to reach 25 ppm. A lady died in her bathroom in a soaker tub burning a shit load of candles for a couple of hours with no dilution air.

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do you have a link to an approved bedroom unit ?

my room is sealed, not hermetically, but no air transfer/exchange takes place purposely. My ambient c02 at lights on is 390ppm.
While using the electronic ignition unit with no pilot my ambient first lights on was below 200, maybe theres another reason but I always assumed it was the pilot as this is all that changed in the space. After working an hour or so in the space the c02 ppm raises visibly on my meter also.