Rocket Stove Science

Let's delve into the mysteries and science of the rocket stove, don't worry it's not rocket science.

[@williamnagle5162]

I have his stainless steel model and it's magnificently built. No large company would ever allow a design to have such high quality materials or such skill in fabrication - it would be nickel-and-dimed down to a price point. This man is a true craftsman.

[@LittleAussieRockets]

Thank you 😊

[@TheRojo387]

I have made a mud version and it works like a charm.

[@hillbilly4christ638]

Planned obsolescence. If you make a product that lasts a lifetime you most likely will be approached with an offer so the buyer can cheap down everything and soak up a bunch of money. No character anymore, just money.

[@subhash7408]

I have made waste iron pipe and cylinders.

[@androidcaughtinact69]

Thank you for your information! I've been doing research randomly learning in and outs about them

[@thisguy1520]

Drawing (intake), draft, and exhaust (flue) are all good words to describe the movement of air through a stove.

[@tricksyhobbitses1695]

As a fellow welder, I appreciate those welds, first thing I noticed!

[@rikray1]

I went right to those beautiful welds myself XRP.!!!!!

[@mwsellox7751]

Welder here. Yeah nice weld. No grinding to clean your weld! I hate it when people do that. 👍

[@narcisorocero7356]

I will try

[@howard977]

Nice stack of dimes

[@UniteForgetLeftRight]

I was kind of wondering why he tigged it but I guess if you're good at laying it down quickly it's probably cheaper than using wire.

[@TonyGingrich]

Of all diy videos I've seen, your welds appear to be the absolute best. Very nice craftsmanship! Most others leave their metal parts looking like they're adhered together with chewed bubblegum.

[@LordRa777]

Finally someone who put it in layman's terms that make it very easy to understand the more complex, thank you.

[@alkssmith9762]

Several things to add: there's to be certain height of chimney tube for max efficacy: the afterburner effect for the flammable volatile products of wood pyrolysis, which are burnt while acsending. For 100 mm diameter chimney, it's to be at least 600(!) mm height. Secondary contour as small holes in chimney additionally deliver air for more complete combustion, reducing height for 6-8%. Also, the horizontal feeding tube doesn't allow wood to drop by it's weight into the combustion area. Though these stoves are for cooking seemingly - size and flame! "Perfect" rocket stove works by heated gases only, however they may get to 1000*C = 1832*F!

[@LittleAussieRockets]

Thank you sir.

[@cliffordsikora9841]

I think your " improvements " are interesting. Thank you for explaining why you are making them the way you do.

[@thomasmetzger3447]

I know this has been out a couple years but you are very informative and I have learned a lot from you Thank you. Also would love to have one of your hot water tanks for an off grid hot tub

[@dp9948]

Nice explanation on stove function, I made a double burner rocket stove along with a hot plate attachment, it has a on/off flap if your cooking on one side, a air control door for flame control, and a slide door at bottom for ash also use for secondary air flow. But nice small stove and info thanks for sharing.

[@TheAntipedy]

Thank you. Finally some one explained it properly --Nice welding by the way ..Thanks mate.

[@TheTobs50]

Great video and good explanation of the basics. I like the idea of using angle iron in order to ensure the airflow isn't blocked. I guess the same is achieved by adding a 45 degrees tube or pipe as fuel feeder, which leaves the horizontal arm free for intake of air. Another idea would be to add a small grill at the point where the three tubes meet, and underneath add a sliding pan with its own opening that collects the ash, and can be removed even when the fire is still going, and emptied. I'll know more as soon as I've tried to build one myself. Regards.

[@johnspringer9451]

Thanks for the explanation, it will help me very much when I built my own👍🏽

[@neilb9375]

trying to make one atm lol i to noticed the welding good job i wish mine were like that

[@imagesbycj]

Wish you were in the US so I could buy one of your stoves. Nice job!

[@jblaze725]

Agreed. I’d be in for at least one as well. They look very nice, the welds look great and you clearly know what you’re doing. I’d say they’re well worth it.

[@the250mikec]

Hey dude. Bead looks great. Keep developing. Loved the video. But since I'm in the U.S. the fire would shoot out the bottom. You know like the water swirling opposite!!!!😅!!!!! But seriously if you could make door / push rod combo that would seal well, could that deal with ash control and help stop / prolong burn time? Would it even be worth the time involved? Good luck

[@digvijayparmar8349]

Good job. Thank you from Charlotte nc jay

[@witoldolbrych3140]

And that's what passion is called! On your YT channel, from listening and watching you get warmer and happier!

[@808SBESTCOM]

Thank you for the inspiration to finally start using my brand new welder which has been sitting in our shop for over a year now. I feel like I can make a rocket stove and may experiment with a gravity fed method for “fuel” to add itself in as required for longer cooking cycles.

[@crackedemerald4930]

6:36 you could make a little cavity on the bottom that could serve as a secondary air intake and an ash dispenser

[@Psychonaut1974]

Nice! I work as a welder, and i'm thinking of making my own rocket stove, just need some inspiration and ideas + use my own imagination. Want it to look futuristic.I'd have to say, that your welding is very good, looks absolutely perfect!

[@julioseviltwin2304]

@CJ there's a vid of a guy building one inside a Jerry can, great project and lots of welding 👍🏻

[@timtelemark907]

Thanks for the great video. Good explanation of the combustion issues and I like your flame maintenance slot in the fuel stick tray and classy welding. Keep exploring. I make tiny light (SS or titanium foil) Aussie stoves for alpine backpacking (described in the links below). They are kind of 'rockety' but, at as little as 500g weight, they don't qualify fully because they have no heat riser (metal, ceramic, round, square or otherwise). However, they have ceramic lining in the hottest parts (to retain heat for initial combustion and protect the metal) and have 'J-style' fuel stick feeders that let the sticks feed themselves into the pyrolysis chamber that naturally regulates the amount of fuel that can be pyrolysed at any time (like yours). The steady plume of wood gas completes its combustion, in the stove box/cooktop/ heater, having passed through a bed of glowing charcoal and air mixing is aided by rapid changes of direction of gas flow within the stove box. The combustion is very clean and efficient (only~400g/hr with no significant smoke or any sparks from the flue pipe). Most of the air enters between the sticks (no separate air path as in yours) and the stove makes a quiet chuffing sound which I think results from the burn rate pulsating during the natural self regulation process. As in your stove, ash builds up at the bottom of the J-tube and restricts the burn chamber volume, but it is slow to accumulate and can be pushed out of the way into the stove box. The useful heat output is from the stove box inside the tent. I view them as regulated smoke generators that burn the smoke completely. I would be interested in your comments and if you think I have a correct understanding of the combustion process. timtinker.com/ultralight-tent-stove-part-2/ timtinker.com/larger-ultralight-tent-stove/ Tim

[@LittleAussieRockets]

That's a really nice stove you have there, very unique and practical. I think you're on the money, I honestly can't think of anything to add or say that you haven't already said. Good job, mate.

[@dubber2001]

Hey man, thank you from the U.S. I got the idea to make one of these and your videos are in the top best of all the ones I've seen. Thanks from another diy guy.

[@kasch7574]

After watching loads of yt videos, trying to understand RS technology, I finally got it. Thanks a lot.

[@firojalam8450]

RS tachnology?

[@johnwood551]

Good video. Good explanation. I like your design too, simple and efficient looking.

[@oddballdynamics.9658]

Your rocket stove is using the fuel way more efficiently, that’s one reason the fuel last longer. Would it be possible to add a trap door on the bottom to dump out the ash? Love the build. Keep pushing the boundaries.

[@B30pt87]

I was thinking of a rod attached to a plate that butts up against the back wall of the upright. You could just pull the rod toward the front to scrape out the ashes. I like your idea too, for a freestanding stove. I'm going to build a rocket mass heater into a cob bench though.

[@tomkelly8827]

It looks to me like the beauty of the J style over your L style of stove is that it is self feeding. I like this video, you did a good job and provided a nice, simple explanation

[@craiglaing2417]

Love watching all your videos 👍 Think you could make a lightweight foldable or interlocking titanium rocket stove for hikers?

[@davidhewson1234]

Excellent description and build quality man !. Like your dumbell positioning device. My welding reminds me of one chicken crapping in a box. Thanks. Dave

[@cliffp.8396]

I like your innovative design, and the stove size is just right. Your on the right path, no worries dude.

[@LittleAussieRockets]

Cliff P. Thanks mate

[@georgeserrano8354]

Thanks for the video...how much? Or can you send me the dimensions? I don't own many tools and don't know how to weld

[@AnnaelleD]

Thank you for your explanations! It really helps. I've just tried a clay one... a disaster, but I've learn very much. Now, I can understand every subtilities of rocket stove designs ;-) Thanks.

[@oldmasteralexmcclellan6443]

Being a welder myself I have to agree the first thing I noticed was the beads that you ran looks good to me

[@johnvanegmond1812]

Rocket stove. Intake =X, Exhaust >X. I think everything you've made pretty much fits that. I don't have a welder so mine are brick, cement, and tin. Dad often told me to utilize my resources. And that's what I do. Love the taste of meat cooked over sticks. I haven't bought gas or charcoal to cook outside with for 25 years. Peace brother.

[@tgs989]

Very high quality work great craftsmanship and video is very interesting and informative. Good video to watch if you’re looking to build your self a rocket stove. Thanks for sharing mate! Tim in Michigan-usa

[@alphaonegx1063]

very nice design and weldworkk and thanks for sharing the concept/ theory of the rocketstove.

[@valveman12]

Nice small Rocket Stoves. I've built 3 Rocket Stoves so far, but mine are a lot bigger. I think a small one like you built would be great to travel with.

[@B30pt87]

That was the clearest, most concise explanation I've heard yet! Thank you.

[@richardelliott9511]

Great explaination of rocket stove theory. I believe that a lot of the makers of rocket stoves could benefit from watching this as a refresher course. Thanks!

[@Kibidula]

Loved the video. Learned a lot. Your notes that flash on are hilarious! And the end where the video is running in reverse... interesting... Giggles. Thank you.

[@johnswimcat]

Beautiful welds! TIG I assume? Very honest video, interesting design points

[@pawjeppesen6589]

Great way to explain how the stove works.

[@robertvaughn7036]

Gorgeous welds!!!

[@emmgee7153]

awesome weld!! I use to weld like that high school auto class

[@domenicaloisio5136]

Your video is the best I’ve seen so far that explains how a rocket stove works. Does having the feed on an angle for gravity feed improve it?

[@bradlafferty]

Great production techniques with the text commentary! Good pace, informative! Thanks!

[@williambianchi2006]

Good luck with your stove venture. Those welds looked great.

[@markpinther9296]

This was entertaining mainly because you seem like such a great chap and all your videos are good. A bit awkward though.

[@IsaKocoglu]

Bucking frilliant!

[@Ed19601]

Your stoves look absolutely beautiful. I would make the chimney longer but i totally understand your explanation why you dont. Your metal looks so great it almost seems a sin to paint it

[@Rafael057]

Wonderfully clear explanation Thanks

[@morelanmn]

Nice welds

[@walker1474]

How much do u charge for one of your stoves? I live n USA.....also do u sell them non painted just with the shiny stainless look cause thats my favorite .... ,U have made a nice Rocket Stove with some of the best welds anyone could do,very professional quality welds and look

[@LittleAussieRockets]

Thanks mate, I'm moving away from this style of stove as it was taking too much time. I have developed a DIY flatpack stove that joins together with twist tabs, which we are selling for AU $200 plus postage and are just starting to experiment with sending them overseas, our first one was Sweden two days ago, and we've been quoted around $80 postage to the US by air freight with tracking, so if you are interested, happy to talk about that. You can check out our new design on the website www.littleaussierocketstoves.com but we are planning to release a slightly smaller version that also folds sometime this month and it will be a bit cheaper. These are both 2mm stainless steel, unpainted. Thanks mate

[@dsmasynergy]

Amazing welds!! Well done! Did you use MIG or TIG? (looks like TIG)

[@LittleAussieRockets]

Silicon bronze TIG welding. Thanks mate👍

[@papuchu]

i like the "V" fuel tray i would enlarge it to the back wall of the chimney and eventually made of steel mesh instead of solid V steel stock for better ventilation and holding the bigger embers over the air stream.

[@greyham123]

Hi there. Is there a reason not to have the fuel input leaning at 45 degrees to allow a bit of self feeding? Assuming a separate channel for air flow.

[@phillipredfern6461]

Love the explanation! Thank you for sharing! How do you typically insulate your stove? What do you use for that? I'm looking at building some very similar to what you have but also wanting to create something more compact and lightweight for use in my 4x4 vehicle that will take up minimal space. Again, thank you for sharing!

[@LittleAussieRockets]

Thanks mate. I have used perlite, Rockwool and even wood Ash. Probably the best is aircrete.

[@dallasvanve7956]

Great welds. If you cut into the side of your pipe where the upright pice is ten to twenty m.m. below the wood insert pipe you have a place for your ash. Also if you put it on a cinder block it will be taller and a small metal can in cinder block is easy to remove and dump.

[@GOLDSMITHEXILE]

VERY nice build quality. You could use them as axle stands when you aren't brewing a cuppa...! when I was 11 I now realise I made basically what was a rocket stove (or furnace actually it was that imposing!) The bottom section (horizontal) was made of bricks fastened with clay, the chimney was made from a 3 foot section of steel gate post about 4 x 3 inches.That thing was scary it roared so much and was red hot at times great big blue/orange flame shooting out the top I read somewhere about the designers of high performance steam trains, they uused a secondary burning chamber for better fuel efficiency. I think some top range woodburning stoves use the same principle, recirculate and burn the smoke

[@LittleAussieRockets]

That's cool! Thanks for sharing.

[@superhoriguy3164]

early examples of rocket type stoves date back 3600 yrs ago the modern version in Ireland early 1900s the kelly kettle... England about the 1920s same as New Zealand with the volcano kettle called the thermette were used for boiling water as well as cooking on top they still make them in NZ we used them when in the bush for work and when we went camping our soldiers used them during ww2 the Germans could never work out why there were black burnt circles at the campsites no secret just making a cuppa and a feed mate lol

[@johnnygee1625]

Brilliant ! Cheers ! From. NY

[@californiadreamin8423]

Beautiful welding. Is that TIG ?

[@cheese3416]

@dropout0110 no they didnt know what fire was. Only thought it was made by lightning

[@atbien21]

d

[@mlangfordcamper]

If I could lay a bead like that I would never ever paint over it, well done.

[@mikeconnery4652]

Your work and explinations are perfect. For an easy add on, weld a small pipe to the top inside of the combustion chamber. This should give super hot air.

[@ljaysperspective1775]

Nice small build and easy to carry should one need to get up and go. Can't really lug a massive stove around these mostly came into existence because of crazy scenarios that may take place. Ur doing a good job! I'm in New Jersey. Do you ship this far is it even worth it for either of us? Thx

[@donarmstrong5804]

Love your channel! First time posting!Have you tried a wooden rocket stove inside a rocket stove! Game changer!

[@simonwills6176]

Mate great work wish you could make a small home heater same as gstove i reckon you would have plenty of interest.

[@ROOPSHOOT1]

Very nice video!! Well put together with all the info I wanted. Very big 👍🏼’s up

[@veneshpillay3635]

Hi great video, if you angle you fuel intake downwards the wood will be gravity fed that way you can carry on with something else.

[@derekrobbins6735]

Look at the fuel intake, it is already angled downwards. That will help but a larger and steeper fuel intake would keep the fire burning for longer. The problem with the ash build up would however be bigger, but maybe a sump in -built would help?

[@samnottheotherone4363]

What setup are you using for welding? Gas, torch type, tungsten? (I'm assuming it's TIG)

[@vanceleyendecker7435]

Thank you for the info it help a lot and good info on how it works.

[@robertedwards1240]

At minute 0:58 he says "in my mind, that's the prettiest part." I have to agree. Those are beautiful welds.

[@dancuevas2065]

THANK you Thank you, someone that LOVES TO TEACH ARE ALWAYS BLESS

[@Flightstar]

Most wood stoves exibit the aspects of a rocket stove when their first lit, especially when leaving the door slightly open as the wood starts to light off, and it starts to roar like a rocket,but its impractical to run a wood stove at that level, as the wood consumption would be very high as well as the heat output.

[@BlueJazzBoyNZ]

Maybe expand on the principles of Gasification primary and secondary burners and why a highly insulated (2nd burner with added air feed) high temp combustion chamber for the wood gas enable complete combustion (heat generation) of the wood stock. ie Highly Efficient.

[@bobcatt2294]

Hold on, what is most magical are those welds, wow wee - how beautiful! Thumbs up on those superior welds.

[@davekauffman8727]

I Built a rocket stove from some stove-pipe and elbows, no air-chamber, just feeding sticks as they disappeared. Sounded great and the thin metal glowed red sometimes.

[@chrisbarkley3435]

Best video I have seen on a rocket stove! Very imfroming

[@decoy2636]

I think you are through the apprentice phase Sir. Others have noticed your welding skill as have I. Other people ask whether you sell these as well. I Sir wish I had plans and drawings so I may be able to attempt to duplicate those welds myself. I don't mind having to grind some I can't see and braille welding is the only option. Thank you.

[@JourneyOnLife]

Wow that is some pretty welding!

[@gregkral4467]

great looking tig welds.

[@robotbjorn4952]

Beautiful tig work, mate!

[@stevewhiteside1818]

Very interesting! Thanks for sharing. Have you got a stove primarily for heating vs cooking?

[@rafacruz2977]

el concepto que manejas es interesante estoy a punto de armar una roquet estov. lo pondre en practica thank you. keep moving an congratulations saludos y abrazos fraternales since of jalisco brother

[@victoryfirst2878]

I am wondering if you could make a combination woodstove and rocket stove so that it would burn for many hours ??? Would be interested in purchasing one of them from you Little Aussie Rockets if you would get back to me with a quote??? Thanks for the lesson on the ins and outs of this stove. Good Day Mate too.

[@michaelcraig7297]

Great explanation and I agree, the welds were Class AA+!!

[@luminouslentil8510]

Love the subtitles that finish the sentences you don't. If you could make an app that did that in live conversation, you would put a bunch of therapists out of work!

[@stephenbellini1225]

We’re you going to explain the J type pros great welding never stop designing and testing ideas (and prices) love to follow your design’s wishing I still had my mig. How about one with an electric gen attached working off the outlet force

[@kulvindersingh3957]

Sir , I liked yr video I would like to know whether you are selling these stove also I am from india how much wil be price in inr.

[@FourthMatrix]

What if you created a slightly modified version where instead of the L shape alone you added a sort of reservoir at the bottom - so extending the vertical part of the L shape below the horizontal part just enough to create a sort containment for the ash? I imagine you could extend the life of the fire this way but perhaps also if you do this and add a trap door you can let out the ash quickly and continue the burn...

[@Random-rt5ec]

Wow - That weld bead at the beginning of the video looks awesome. Quality like that = long lasting rocket stove.

[@jimmartin3833]

Did y'all design a slip in top with a grill and a port to vent the spent air up and out an exuast pipe? Or how anout a slip in thin Titianium dome that deliver's radiant heat with a side vent to exuast the spent air up and out a chimney pipe? So folk's could use it in door's? 😁👍

[@samnottheotherone4363]

You're giving away you secrets! Great video.

[@steveday2868]

I like it that your experimenting with different design ideas. A purist to me would still be driving a model T, though i would like to own one. Im wanting to try a rocket stove heater but with all the "purists " design my floor would cave in from the weight and with it all the other stuff "wink" i have in that room.

[@jackpi1863]

Thank you for that clear explanation.

[@MediaWhored]

Beautiful welds, not just uniform but tight. looks like a machine welded seam

[@LittleAussieRockets]

Thanks mate

[@ceebs83]

Those cylinder ones @3:25 look cool too!!

[@TheMrWoodsman]

Just a thought, would it be a good idea to have a door on the fuel feed opening and could a tray be built to pull out to empty the ash?

[@mehemeddelic1872]

@Furio jjìuj.,j

[@huxmetalworks7371]

Great job keep up the great work

[@samnottheotherone4363]

What welder do you use? I'm curious.

[@fayezbayzidify]

Great work my big question is how can one get the flames that make contact with the pot or pan more even similar to a gas burner?

[@LittleAussieRockets]

That is the million dollar question, which kinda drives all these videos, maybe one day I'll have the answer to that! Thanks mate

[@francois853]

@@LittleAussieRockets a diffuser insert of some sort should do the trick. if it works for an open gas flame then why not for wood flames.

[@everisbridger1077]

Really clear video on how they are so effective.