Low-tech DIY Rocket Stove Water Heater PART I // Construction

Heating water using a Rocket Stove is the best low-tech solution to heating my Biogas Digester. In this video I build the rocket stove with copper coil ready for PART II where I will hook it up to the water system and fire it up.
The parts for this stove a cheap and it is easy to build, check out below for a parts list. I have tried to keep it as simple as possible so it can be done with any materials at hand. Th most difficult thing to source will be the copper 10mm tube.
Parts used to build the rocket stove:
Re-claimed Chimney
10m 10mm Copper microbore coil
Sharpe Sand Bags x 2 (any hardware store)
Roofing Tiles / Slate / Rubble
This is the start of an experiment to get an off-grid water heater that could heat my digester. There are many ways you could go about this, I have chosen to go for the most low-tech solution possible and work up from there. Let me know what you think.

[@GetMeOffGrid_]

Hello Everyone. Thank you of watching, I hope you found the video interesting. If you did or if you didn't let me know below. For those of you who are new to my videos subscribe and go and check out my first video on the biogas digester I mention here: kzbin.info/www/bejne/kGqwhXZ8jLmjr9E

[@1943L]

Would you get better heat transfer if the flames came up through the coils, rather than just picking up from the central metal chimney?

[@GetMeOffGrid_]

Hi John. Yes there would. I was a bit nervous to do that as I was unsure about the thermosyphon. If the pipe is directly heated by the flame and the water doesn't flow the pipe would get too hot and could melt. With a bit of mass between the two the chance of that is reduced. Now I have it working altering the chimney is definitely an option to increase the temperature of the water. Cheers

[@dr.suryanarayanan9256]

The "Bollocks" expletive towards the end split me up 🤣🤣🤣

[@larrymcdowell9576]

Just an idea, using an earth battery with a jewel thief circuit to run a fan and use a rainbow burner in a small furnace to heat your biogas forced air furnaces don't take much fuel to run.

[@GetMeOffGrid_]

I like that idea, especially the forced air furnace. I'll have to do some research on those. Cheers

[@freiundglucklich1741]

Nice idea!!

[@GetMeOffGrid_]

Thanks 👍

[@kilometer214]

great video

[@GetMeOffGrid_]

Thanks!

[@evandorco5193]

Nice

[@GetMeOffGrid_]

Thanks :-)

[@wordinmusic]

the video sped up around 6:45. It looks like you put some kind of silver tape around the can seams..?

[@GetMeOffGrid_]

Well spotted! Yeah, put tape on to ensure they did stay in place while the sand was being poured. It was only scotch tape so will burn off when it is all in place. Cheers

[@romilsonmagalhaes6487]

se voce colocar a bobina pelo lado externo é melhor, porque o carbono gerado internamente inibe a temperatura voce tem perda de calor ba bobina de cobre. Se voce colocar a bobina em volta do tubo ceramico e envolver com manta termica ou mesmo barro, como proteção, isso irá manter a temperatura!

[@GetMeOffGrid_]

Great idea

[@SimpleEarthSelfReliance]

Very nice, I like this. Thanks for sharing. I was caught up with finding clay, and the sand works just as well! A trick for bending the copper pipe is to fill it with sand - prevents any accidental "close bends" when you get a bit rough on it

[@GetMeOffGrid_]

Sand works great, you just have to find something to be your inner, to hold it in place. Thanks for the suggestion!

[@NTF-zb9wi]

My volume's all the way up; but, I can just barely hear you. :( Otherwise, it looks like a great video...

[@GetMeOffGrid_]

Thanks. Sorry about that. Is that at a particular point or all the way through?

[@NTF-zb9wi]

@@GetMeOffGrid_ All the way through, unfortunately, For comparison, I can hear other videos just fine; so, I know it's not my speakers.

[@CarolinaChrisOutdoors]

I like that idea. Has the tin chimney held up with use? Mine always seem to melt. Two different diameter clay pipes might work .... I might try that.

[@GetMeOffGrid_]

Thanks. It held up for the time I used it. But the chimney wasn't big enough to heat up the water quickly so I changed the design a bit with some suggestions from a viewer. You can check it out here: kzbin.info/www/bejne/jmTRaIOFgtaGlcU Cheers!

[@larrymcdowell9576]

Sorry not rainbow, ribbon is what I meant. Sorry again.

[@GetMeOffGrid_]

No worries. Just found a cool video explaining them here: kzbin.info/www/bejne/nGnQioiwd9qnfLM

[@rafaelriveran.9761]

The copper tube how thick is?

[@GetMeOffGrid_]

10mm - its in the description ;-)

[@wordinmusic]

Did you just chip a hole at the bottom of the stack for the pipe to come through?

[@GetMeOffGrid_]

Even more basic than that. Just sat the stack on top of the copper pipe, supported by a few fragments of tile and then sealed the gap later with sand.

[@larrymcdowell9576]

Juel

[@GetMeOffGrid_]

Is this what you mean? en.wikipedia.org/wiki/Joule_thief

[@SimpleEarthSelfReliance]

@@GetMeOffGrid_ That's it yes, Joule Thief (energy unit).