Well N A, The Tankless Water Heater is the Bomb!

[Budley Doright]

The OP used a kiddie pool inside the building. Remember that the device is being used to add CO2 to an enclosed space, not to heat the water to a given temperature, so it doesn't take as much heat shedding as you might think to support it.

My dual circuit chiller has a hot and a cold water circulation system. If I were to use one, I'd connect the CO2 burner to the hot side so the cogenerated heat could be routed and used elsewhere.

I just don't see it shedding enough heat from the exhaust to be a huge advantage being the exhaust is still going to be extremely hot, but yes I guess it all helps lol. Guess I'm more about safety and approvals and shit when it comes to gas, call me paranoid but here it comes down to owning the liability when bad shit happens with co poisoning . And your right about using the heat produced and using it elsewhere, a condensing heater would be great to do that, using storage tanks to store and use that heat as needed is a great ideal, we do that all the time with tankless combo units for both heat and domestic water, just think of all the stuff you could keep warm like your grow room floor and bathroom towel rack, always wanted one of them lol.

 

[noob12345]

There would not have been any in-fighting if he had not insulted me for having an idea. I still don't think it was a bad idea, just go and check out the price of a standard co2 gen. Mine has arrived anyway so we will soon find out what the co levels will be....

wih couple of pics of latest ladies without co2...

 

[noob12345]

hmmmmm...... a guy called budley doright wrote "Did my latest WC co2 with a 100 dollar ebay burner and a 60 dollar harbor freight pump. Been working like a champ for a year., 30 gallon rez no chiller." on another well known forum. Just a coincidence?

 

[jonsnow399]

hmmmmm...... a guy called budley doright wrote "Did my latest WC co2 with a 100 dollar ebay burner and a 60 dollar harbor freight pump. Been working like a champ for a year., 30 gallon rez no chiller." on another well known forum. Just a coincidence?

@noob12345 How did it work out? Co levels?

 

[noob12345]

not setup yet mate, have not had the time with the hols etc, will get on this in next couple of weeks, will post back with reuslts asap.

 

[Dr. Who]

Lets say this about portable water heaters.
I looked at a NEXT GEN III.
I bought a Chinese built portable water heater for 1/4 the cost. I changed the battery ignition system to the proper Volted DC converter and never looked back.
BTW. The portable is the same fucking insides as the NG3, simply a different ignition system..

I don't gas any more. Don't really see the need...Still have a second back up unit in the box....Same for a chiller....Be sure to cover or seal the cooling water tank.....

 

[noob12345]

Lets say this about portable water heaters.
I looked at a NEXT GEN III.
I bought a Chinese built portable water heater for 1/4 the cost. I changed the battery ignition system to the proper Volted DC converter and never looked back.
BTW. The portable is the same fucking insides as the NG3, simply a different ignition system..

I don't gas any more. Don't really see the need...Still have a second back up unit in the box....Same for a chiller....Be sure to cover or seal the cooling water tank.....

Ahhhh finally someone talking some sense....lol
If i have problems with battery ignition you might end up with a PM for some advice if thats ok?

 

[Dr. Who]

Ahhhh finally someone talking some sense....lol
If i have problems with battery ignition you might end up with a PM for some advice if thats ok?

No problem!

 

[chemphlegm]

I own one of those. really expensive to run the sump pump, very safe though with half a dozen redundant go/no go's.
it hangs on the wall now, replaced with a pilot cap 4 burner 6 yrs ago. no complaints on either.
I hosed the water to the other side of the wall(outside grow room, inside barn) to a barrel filled with antifreeze and capped. but...
Controlling the little extra heat from the un cooled cap unit is cheaper for me than pumping water to cool the other.
for sale

 

[noob12345]

Hey chem, I am going to use run to waste for now, my 220v solonoid valve has turned up today, I was thinking about the same sort of idea but instead of capping it maybe using a heat pump and hooking it up to a radiator in my workshop for the wintertime lol just not sure how hot it would get (if at all). I have been and got teh 10m of copper that i am going to use to run a new gas line from outside my kitchen into workshop, I am also going to run a fixed copped waterline at the same time. I am ready to get cracking on the piping, plaster boarding and insulating my room now. I have moved my tents indoors for now so i can get on with sorting out a proper room hehe! Cant wait to see the difference added co2 is going to make.

 

[chemphlegm]

Hey chem, I am going to use run to waste for now, my 220v solonoid valve has turned up today, I was thinking about the same sort of idea but instead of capping it maybe using a heat pump and hooking it up to a radiator in my workshop for the wintertime lol just not sure how hot it would get (if at all). I have been and got teh 10m of copper that i am going to use to run a new gas line from outside my kitchen into workshop, I am also going to run a fixed copped waterline at the same time. I am ready to get cracking on the piping, plaster boarding and insulating my room now. I have moved my tents indoors for now so i can get on with sorting out a proper room hehe! Cant wait to see the difference added co2 is going to make.

is a great idea. my discharge got steaming hot for thought. I capped my drum to contain the humidity.
you'll know exactly what benefit you may have by getting your meter first and studying it in the room without c02 augmentation.
place it all over the place to check but the most important place is around the plant canopy. If your air exchange/circulation is able to keep that point between 300-400ppm while lights are on you are golden, no need for more c02. Idid and found less than ideal c02, if my gen died today I'd have another by the weekend. no way would I grow without one in my space.
when I grew in my office in tents I needed no additional c02. I chose it over outside air exchange and love it.
but if below 300 ppm your plants are starving. even starving kids can survive for long periods of time, doesnt mean they're as sharp as they could be right...

 

[noob12345]

lol! ive got the superpro d1-ppm controller not even plugged it in once yet though.

 

[noob12345]

Im also going to bump this as It works a treat! I even plumbed my own soldered gas line into my room for it and a waste pipe out for the hot water, I decided not to use a res as it would just cost extra to run another pump etc, water is naturally recycled anyway right? My co2 controller runs a 220v solenoid on the cold water feed I have plumbed in which does exactly as described! The only problem I have is that even after the controller switches of the heater, the co2 rises from the 1250 setpoint right up to 2000 before dropping again. Photos included.....Thats not where i put the sensor normally and that's my RO system that I have plumbed in also! Im not sure if it was on this forum or another but i had a big argument with a so called "gas engineer" and his friend that were telling me that its "not possible" and "too dangerous" due to high levels of CO, I have a CO alarm in the room with a digital ppm gauge on it that has never gone above 0! So this is for you whoever it was!

View attachment IMG_20190224_151646633 - Copy.jpgView attachment IMG_20190224_151651715 - Copy.jpg

 

[DrBlaze]

Im also going to bump this as It works a treat! I even plumbed my own soldered gas line into my room for it and a waste pipe out for the hot water, I decided not to use a res as it would just cost extra to run another pump etc, water is naturally recycled anyway right? My co2 controller runs a 220v solenoid on the cold water feed I have plumbed in which does exactly as described! The only problem I have is that even after the controller switches of the heater, the co2 rises from the 1250 setpoint right up to 2000 before dropping again. Photos included.....Thats not where i put the sensor normally and that's my RO system that I have plumbed in also! Im not sure if it was on this forum or another but i had a big argument with a so called "gas engineer" and his friend that were telling me that its "not possible" and "too dangerous" due to high levels of CO, I have a CO alarm in the room with a digital ppm gauge on it that has never gone above 0! So this is for you whoever it was!

View attachment 4404178View attachment 4404179

Looks great. Btw what co2 alarm do you have? I think in most places its the law that they don't display anything til they hit 20-30ppm. The only one I've seen that measures lower is The Defender and it starts at 5ppm.

Welcome to TruTech Tools, Ltd - Quality Tools. Essential Support.

Edit - I guess there's some newer models from the big manufacturers that measure down to 10ppm

 

[xIPhobiaIx]

Can a tankless water heater get a 2000 cubic foot room (10W x 25L x 9H) up to 1500ppm?

 

[ttystikk]

Can a tankless water heater get a 2000 cubic foot room (10W x 25L x 9H) up to 1500ppm?

Yes.

 

[noob12345]

I ended up tearing mine out, i was getting ethylene poisoning and my plants were going into some sort of lockout and the roots dying off, gone back to vented and everything seems fine except for the odd user error in the soup department.

 

[xIPhobiaIx]

I ended up tearing mine out, i was getting ethylene poisoning and my plants were going into some sort of lockout and the roots dying off, gone back to vented and everything seems fine except for the odd user error in the soup department.

That is crazy. Were you using natural gas or propane? I thought that when burned correctly it should only give off CO2 and when not burned correctly it gives off CO (dangerous). I wonder where the ethylene could of come from. What model where you using?

 

[noob12345]

That is crazy. Were you using natural gas or propane? I thought that when burned correctly it should only give off CO2 and when not burned correctly it gives off CO (dangerous). I wonder where the ethylene could of come from. What model where you using?

Im not sure what was causing it 100% but i am 100% that it was killing my plants while switched on, I have a brand new co2 controller for sale but i am in EU.