coffee can rocket stove

[isanification]

chimney is too short man, the rocket stove basic principle is the "chimney effect" that cause the oxygen feed or self blowing and heating insulation around combustion chamber.

[toddpotochny]

Very sciencey but have you ever tried making a simple Hobo Stove? mine seems to be as efficient as this, is made from a qt sized chili can in 10 min & it uses very little wood and nests inside my backpacking pot. if the wood's dry I get a hard boil in 6 min & then just feed it little twigs n bits to heat my immediate area with very little smoke. And when its time to sleep its completely out in 5-10 min & just white ash. Give it a try- it'll add miles to your hike.

-Cheers!

[dendog21]

if fire is coming out of the top of your stove then your rocket stove isn't functioning properly. With a rocket stove, the only thing that should be coming out of the top is the heat. Like you said you need more height for the size of your burn chamber

[jovanport]

u can use broom stick for the fuel :P

[Crunchy68]

Hey, strange thought happening in my head... What if you took a giant flowerpot and upended it over the rocket stove (with air space underneath of course), maybe with it's drip tray on top for a heating surface? The whole terracotta thing would warm up, and release the heat slowly. Could be good for baking bread, or cooking tortillas.

Not sure how you'd handle feeding the fire, though. Would need a different feed-tube setup.

Hmmmm...

[Crunchy68]

As a miniature version, this seems pretty good. It's obviously more efficient at boiling water than a simple campfire would have been.

Thanks for explaining about the perlite. I'd only ever heard of firebrick or cob being used for insulation. Perlite would be much more portable.

[MrPhotodoc]

I could smell the smoke when you turned the stove :)

[sok8888]

Dude, your pot is turning black. Rocket stove is design with tall column so that the wood gas can have secondary fire that will burn cleanly. Your coffee can is way too short for rocket effect. At best, this design is a well covered camp fire.

[NamesROverated]

@fscii so no, you may not have tin snips, but you might have everything else.

[NamesROverated]

@fscii Well, if you're in the woods, obviously, you were camping, right? Well, soup and coffee is a pretty common thing to bring with you. And no one would be caught dead camping without a knife..

[jauboite]

good-looking stove & fine chopping technique. does anybody drill the cans to go for the secondary woodgas combustrion in a rocket stove or would that defeat it, that is, sacrificing the insulation layer?

[ashtin1958]

Good chopping technique, way to have a pair. I do it all the time, no injuries. I made my rocket 4" all the way, you use more insulation, seems more efficient. Good job!

[orangedac]

don't you need to extend and narrow the length of the chimney ?

that way there is no smoke as it all gets burnt up in the time it takes to go up the chimney

[lordsummerisle87]

Surely the sooting of the pan indicates that something's not right? My understanding of the rocketstove project was to get 100% carbon oxidation to prevent smoke inhalation. This has the added benefit of maximising energy extraction per Kg of fuel.

[Amanensis]

Rich -

Have you tried to angle the wood entry can downward to allow for wood 'slippage' into the combustion chamber without the operator having to mess with it?

[PostToastie]

@Amanensis

That''s a good thought, but I'm afraid the fire would then burn up into the feed tube.

[dereinzigwahreaff]

why not a simple hobo stove?

[Texasoutback]

where do you get the perlite

[Amanensis]

@Texasoutback

Anywhere you can purchase garden supplies.

[uxcitme]

OMG...my thumb!!!

[sbegot]

NICE!

[barquester]

I enjoyed the splitting of the wood as much as anything, it's obvious you have done it quite a bit.

Wouldn't this be just an insulated hobo stove rather than a rocket stove since there is a gap between the stove and the pot. The hot gases exit losing heat while in a rocket stove I believe there is no gap and the cooler gases go down another ring to be vented at the bottom and up another tube.

But I intend to make one just like this one because of it's simple design.

How LONG to BOIL a quart?

[modtwenty]

he actually does hit the ground at one point (1:31) rich991980 is the man and I like his mini rocket stove, GOLDENSCALES are you making a stove too?

[mundafaka]

Backpacking axe ahahahahah

jk, nice video!

[bobbycorp2]

great stove i built one in like 5 min and it worked pretty good but i wanna no if i can use sand as an insalator thnkzz

[rich991980]

No, you can't use sand as an insulator since it's not an insulator. Sand is heavy, dense and will suck heat away from the combustion chamber. You need something light and airy that can withstand high temperatures. Wood ash is free and effective. Vermiculite and pearlite are good.

[cdltpx]

You could but the stuff he recommends acn be had at building supply I paid $3 for a bag and have plenty left over the stuff is used for plants to loosten the soil and allow water flow. I built this stove and tried to burn without the pearlite and the thing sucked so I got some thick al foil and used some pearlite and amazingly the stove performed well enough to cook a large roast with a pressure cooker. Pleas ewrap your pots with a foil layer to prevent sooting it should still cook fine.

[lleanamarie]

great job!!!

[sarahkauai]

I was disappointed when you said that you didn't know how long it took to boil the water.... for me, that's the whole point!

I am seriously considering switching to this stove for some of my more basic cooking needs, so THANKS for this very nice demo vid.

[projectdelta50]

alcohol stove

[pshinspections]

@projectdelta50

Yeah that is best unless there's no liquid fuel! Gotta fall back to a rocket stove when my Jetboil and alcohol stoves are out of fuel.

[cdltpx]

A rocket stove is an updraught wood gas stove. A wood gas stove uses the hydrogen and oxygen released from the water contained in the wood and the air to combust.When you achieve paresis is when you begin the wood gas process. Many have made wood gas stoves that use a small electric motor which is a forced air system. I think its better to use the rocket stove because there is less that can go wrong.

You will see a lot of woodgas stoves on Utube

[Bently100]

Hi, what do you need the inner can? I understand the inner can for the woodgas stove, but why with this one? And, what is the purpose of the insulating layer? I can't figure it out. Thanks.

[screwball3z]

watch?v=9uh2VExcdbY

might help

[hulksaidfu]

oooooo........Chop Sticks!!!! :P

[leidatracao1]

cool...

[camjackshow]

can we just poke holes in a soda can and pour cooking oil into it,light it on fire to make a stove?

[lenhoj85]

you can only do that with rubbing alcohal

[darkkittyx]

preey much lolz!!!

[goldenscales]

Maybe you could do a vid using your stove in an outdoor setting. I go camping with the missus on occasion, so I would be interested to see how you would do it.

Also, could you (please) do a do-it-yourself step-by-step type vid on how to make these for us?

[goldenscales]

Piece of advice, dude. Do not! cut or chop wood that small with an axe, use a hatchet, much smaller and lighter, and use a chopping block. Even a slab of 2 x 4 will do. Axe slips, hits concrete, get blunt! Or, you could do some damage to your fingers and/or hand!

Otherwise, well done.

Cheers!

[rich991980]

Thanks for your concern about my safety, but as you can see in the video my technique is quite effective, and I was in no more danger of cutting a finger than you are when you chop carrots. As for dulling the blade on concrete, I didn't and was ok with the risk of hitting it. The axe was actually better for what I was doing, because of the added weight. Had I had a hatchet, I might have hit the concrete, and would have probably needed a chopping block. Glad you liked the video. Rich

[musicallysmitten]

that would have been my comment precisely that the axe gives more weight not requiring as much strength allowing gravity to assist.

[brightneighborTV]

How did you insulate between the two cans?

[rich991980]

between the inner and outer can is perlite. its very insulative and can withstand high temperatures

[14sJakeB190]

@rich991980 You should make some more of these and sell em on Ebay.

[dcskill]

very cool. well built from house supplys =D.

[hillbournesian]

A taller chimney would give you more draft and a hotter burn. But cool stove man!

[Woodvivor]

Careful with that Axe, Eugene:-)

Cool video!

[BorisDay]

One of Water's more crazy perfomances!

[rich991980]

I wield the axe with expert skill!! LOL Until I loose a finger!!

[musicallysmitten]

that's a technique for cutting kindling which I use, with my axe.. Did you perhaps see me using it? that's what Dads are for!!!

[skaterdude1229]

one last question

how did you made the top lid that covers the insulation ??

[rich991980]

Sorry for the late response. I'll do my best. The top lid is the top of the can itself that was removed with a can opener. I cut the hole in the lid with tin snips, slightly smaller than the small can. I used pliers to bend down a 1-2mm lip that fit inside the small can. Similarly I bent down a 1-2 mm lip on the large can to hold the lid down onto the small can. The small can stays in place because of the perlite pellets all around it. Hope that helps.

[skaterdude1229]

how do you make the holes in the cans ??

[killingmeman]

with a drill

[skaterdude1229]

i dont see any drill convering that insulation

DUMBASS

[killingmeman]

u suck

[skaterdude1229]

lol

DUMBASS

[SthealthRaider]

USe as fuel spiritus or alcohol works too

[endlessrskies]

nice, im a city boy, not used to trimming the wood like u did, nice job friend

[miere08]

Yeah, how do you make it before you do the burning?

[JimmyRiotNY]

Great man, thanks for putting this up-- nice one!!

[JimmyRiotNY]

Fascinating-- thanks!

[joeystinkbutt]

so stupid get a jetboil whos going to pack that ?

[NamesROverated]

You wouldn't pack this, you build it on the spot with random found objects as an emergency stove.

[joeystinkbutt]

you are all so gay

[MrBillTroop73]

Good work.

Bill

[deterpeter]

thank u for the post . u save a lot of time for me, becouse soon I'll do a big one, and now I see how important are the proportions. Thanks again.

[bobby32123]

very nice video

[MortarsMan]

how do u make it why dont u make a vid (video) on how to make it and im going on a camping trip in march 2008

[rogeliomarigomen]

hi, i read that the chimney height of a rocket stove should be 1.5 times the diameter of the entrance to the combustion chamber. in your stove i can see that it is a lot less. do you think your stove will be better if you increase the chimney height ? thanks

[rich991980]

Hi, great comment. Your absolutely right about the chimney height being too short for the diameter of it. I had used a soup can for the fuel delivery and a larger can for the chimney. I found it didn't actually burn well at all, or get hot enough. In my second model I used small cans throughout....

[rich991980]

... and without adding any height to the chimney was able to get the proper proportions to have better combustion and draft up the chimney as well as higher temperatures. cheers and thanks for commenting. I'll post a video of the second one eventually.