Hydrogen Pro Co2 Burner VS. Marey Tankless Hot Water Heater

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budleydoright

Well-Known Member
NewGrowth said:
sensor' is non-existent, the water diaphragm sticks so gas does not flow, do you want me to keep listing the problems I've encountered? If you want to defend a POS product more power to you, I've got to much garden work to be constantly fixing a burner.
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I never had any problems with my Marey 5L although i was a very small volume user. Do you do large setups, high demand? I ask only to keep perspective in our dialog. I quit using mine cause I couldn't control it. Too much output for my little space.
 
NewGrowth

NewGrowth

Well-Known Member
That makes sense Budley mine has to run pretty at pretty regular intervals to enrich the space. I've removed all the water cooling components and installed an electric solenoid to control gas flow. A tank seems to make more sense in a small space though.
 
legallyflying

legallyflying

Well-Known Member
Got my unit today. Pretty stocked even though I am exhausted from all the work required to install this thing.

1 installed Durotock concrete tile backer board on the corner and felony where the unit is going
2. acquired and then BURRIED a 55 gallon plastic drum directly outside the grow room. Buried to prevent freezing and keep cool in the summer
3. Purchased 1/4 hp pump from harbor freight
4. Ran 5/8 rubber garden hose to and from reZ
5. Extended had line 25' to grow room

I'm muddy and exhausted but excited to have a permanent, hopefully maintenance free supply if CHEAP co2.

One cool thing in this model, it has a summer time switch that will only fire half of the burners. Hopefully with this engaged it won't be too large for my 500 CF room

Big time thanks to the original poster!
 
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budleydoright

Well-Known Member
I had to set my relay at 1200 to keep the overshoot from going over 1800. My controller was set at 1200 with a 100ppm deadband. kept me at 1200-1800.

Keep your water ph'd at around 8 and add about a 1/4 cup of bleach to keep things from getting funky!

Have Fun! Watch that humidity.
 
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afrothund3r

Active Member
researchkitty said:
Cap's ebb & gro monster is just home depot $2.58 buckets and an aqualab kit. :) Everything is bullshit, the DIY crowd always cries foul, but they are the ones who do it themselves, so what do the companies care if the people who wont buy their ready-to-go kits wont buy it anyway. ? :)
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Where do I find the aqualab kit?
 
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grinkeeper

Active Member
had to pull up a chair as well.. I am also very excited about this discovery. I have owned a bunch of different CO2 gear over the years. martin CO2 BUNRER. which I later discover to be a camping heater with a solenoid. I was pissed as well.....

I actually switched to the bottle due to heat issues with generator.. so I have a bunch of different regulators and solenoids for propane. I have been using the cap reg/solenoid and also have a C.A.P. PPM3 and a relay...

but I am not looking to swithc back to a burner, not my old burner as heat issue of course.. But something water cooled... But after a close friend bought a hydrogen unit.. he had a 55gallon barrel to work as a res.. little did he or I know that it was gonna be such a pig... it was like a tub of bath water in that rez... I was dumb founded.. it seemed impossible that this lil co2 genny would boil the water.. but it did.. you must remember that the room that it was in was large... 1100 sqft and a full med grow..with all the permits... but to be honest the thing was going inot overdrive with water.. couldn't find a rez big enough... and little did we know that you really need a REz chiller as well to run these CO2 GENNIS..

So I have a question.. I have a C.A.P. sensor with relay... and a few pumps kicking around.. I need to set up something for a 400sqft space.. temps as alwasy are my number 1 concern.. I am running air cooled lights and lots of air in and out.. but no A.C.. at this time.. I have a KEEPRITE DUAL FAN rad chiller that I havent installed or figured out just yet.. but I need to figure out the best plan for CO2 in this space.. what WATER HEATER should I buy... I dont have NATURAL GAS LINE but will buy a 100lb propane tank.. as well as large res for the water heater/co2 gen....

but what one... please a hand would kick as people...
 
mrduke

mrduke

Well-Known Member
yeah it amazing how quick these little water heaters heat a 55g drum. mine only runs for about a minute and a half, 3 times a hour butthe res will go from mid 60 to upper 90 in a 12 hour cycle. I've been doing the old ice block game but its fuckin old, looking for a cheap water chiller to get threw summer. by the way i have a eccotemp 5l water heater that runs on propane and a 5gal tank will last the whole bloom cycle in a 3k grow
 
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budleydoright

Well-Known Member
grinkeeper said:
had to pull up a chair as well.. I am also very excited about this discovery. I have owned a bunch of different CO2 gear over the years. martin CO2 BUNRER. which I later discover to be a camping heater with a solenoid. I was pissed as well.....

I actually switched to the bottle due to heat issues with generator.. so I have a bunch of different regulators and solenoids for propane. I have been using the cap reg/solenoid and also have a C.A.P. PPM3 and a relay...

but I am not looking to swithc back to a burner, not my old burner as heat issue of course.. But something water cooled... But after a close friend bought a hydrogen unit.. he had a 55gallon barrel to work as a res.. little did he or I know that it was gonna be such a pig... it was like a tub of bath water in that rez... I was dumb founded.. it seemed impossible that this lil co2 genny would boil the water.. but it did.. you must remember that the room that it was in was large... 1100 sqft and a full med grow..with all the permits... but to be honest the thing was going inot overdrive with water.. couldn't find a rez big enough... and little did we know that you really need a REz chiller as well to run these CO2 GENNIS..

So I have a question.. I have a C.A.P. sensor with relay... and a few pumps kicking around.. I need to set up something for a 400sqft space.. temps as alwasy are my number 1 concern.. I am running air cooled lights and lots of air in and out.. but no A.C.. at this time.. I have a KEEPRITE DUAL FAN rad chiller that I havent installed or figured out just yet.. but I need to figure out the best plan for CO2 in this space.. what WATER HEATER should I buy... I dont have NATURAL GAS LINE but will buy a 100lb propane tank.. as well as large res for the water heater/co2 gen....

but what one... please a hand would kick as people...
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Look on ebay. I think that they are all pretty close and likely come from the same factory in china. Be advised, your cap ppm 3 can't handle the load of a water pump. You will need to add an external relay. Plugging anything greater than 1/2 amp will blow the internal relay.

The 5lb tank should last quite a while with 1000sqft and it's nice to be able to but one at 3am!

Also it has been my experience with water cooled lights and co2 that they still operate quite well with warm to hot water. Still removing tons of heat, which is why the water continues to get hotter!

I was able to run my light with 110 degree water and still have a nice environment. the pump I use doesn;t recommend using it in fluids over 85 so that was my weak link. big difference between loosing a light pump and a co2 pump though.
 
907

907

Member
Right on peoples, am still running my ecotemp and all is well. The only thing I have done was circulate some vineger through the water heater to help on scaling deposits. A 25 pound bottle will last me 4-5 weeks. I use Growtronix to control my room, I use a jacuzzzi circulation pump inline, it has 21' of head and draws 55watts, and very quite. Also I use 1/4" RO water line tapped into my water system that is also controlled by the GT software. When the flower room gets to hot the GT opens a valve to feed the 1/4" line that runs cold well water into the flower room and through a perkins radiator that is plumbed into my carbon fan set up. Then it goes back down to 1/4" RO line and outside to the drip line set up for the flower beds. I put a valve on this line right before the GT controlled solenoid valve, that way I can feather the amount used. When it comes on my air temps coming out of the radiator are 53 degrees, and I timed it at 17 minutes for 5 gallons of water, I can live with that
Peace 907
 
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BrutZuk

Member
Bump, I have a question about this. I was looking into getting a co2 generator for my 10x12 sealed room, and then I was looking into water cooled co2 gens when I found this thread. If I were to get one of these water tank heaters like the eccotemp L5 that someone posted on here, how would I go about setting one of these up in my house?

http://www.overstock.com/Sports-Toys/Eccotemp-L5-Outdoor-Portable-Tankless-Water-Heater/3650782/product.html

Do they have to be put outside, as it says outdoor use only? Are these things dangerous to set up haha? Sorry I'm a newb to this, I just want to get a co2 gen that doesn't cost an arm and a leg, but also easy to install... any help would be great!
 
nixusr

nixusr

Member
Tankless water heater....Unreal! I had no clue these things existed. The Marey 5L is the hydrogen at almost more than half the price. I was on Marey's site and checked out the video for the 5L unit and whoa...its the guy from Hydro Innovations doing the presentation...what thaa!?

Ive been going back and forth on making a decision between going the 20lb tank route or the hydrogen route. I'm currently building my 12X12 sealed room and worried about the heat put out from the gen.

Do these units allow constant water flow? How do you get them to fire based on using a co2 controller?
 
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budleydoright

Well-Known Member
The Marey unit fires when water flows through it. Some of the HI units circulate water all the time and you fire the ignitors. I have mywater pump plugged into my controller.
 
rapiddude1

rapiddude1

Active Member
flamdrags420 said:
great post man
maybe this is why I haven't heard back from these companies.
I figured they are the same but can find no info really either way.

My dream idea is also to use a gas fireplace. And just adjust the knob so the flame is burning blue and just vent the sucker into the grow room.
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Kudos to Legallyflying and Flamdrags. Just googled HydroGen and verified that they are NO LONGER servicing the unit. All inqueries are being refered to a TX company Louvie Group who does NOT answer their phones. Had nothing but troubles with my 2010 HGPro unit...returned 3 times and now packing up #4 after using for only 2 months. Bad customer service and the above spells disaster. The Marey unit is near identical, except for being battery powered. Both are made in China...no parts made in the USA. The Chinese are off branding these to different distributors, HGPro/Louvie being one of several.
Am ordering Marey today and will repost my findings.
 
chris jerny

chris jerny

New Member
I have an outdoor hot tub. Using the triton 10l and using the 1000 gallon hot tub as a rez. I keep my hot tub at 104. Should be fine. And the assistance from the water heater will lower my hot tub electric bill!
 
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