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Pellet Burner for Rugged Rocket Stove
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- čas přidán 28. 04. 2014
- This Rocket stove now works well on pellets, too! With the pellet hopper it can be safely left for 30-40 minutes before needing attention.
I've also added an oven with an internal rack for baking which seems to work quite well, as shown in the video. Not shown is the oven thermometer which I've since added.
To make it work on pellets, the wood grate needs to be swapped with the pellet hopper and a primary air guide plate inserted in the horizontal feed port. I light it by wetting a tuna can full of pellets with fuel alcohol, dumping them into the pellet hopper, then adding more pellets as needed. It lights pretty quickly with a match or lighter and burns hot and clean from the first.
Note that there are now two air ports, one on each feed hopper, and also a flue control in the chimney. On pellets, the lower air port effectively controls primary air and the upper port controls secondary air. On wood they only control primary air for their respective hopper.
I've included a clip at the end of generating steam with a pressure cooker while burning wood.
This stove has become very flexible in both fuel and application, and it burns hot and clean in all modes. I'm pretty happy with it!
Thanks for watching! And click 'Like' if you do!
So genius!! This is simple, convenient and versatile also. I think the pellet hopper is very good idea. The best rocket stove of all.
Beautiful design. I like the little sheet-metal insert that directs the air under the burning tip of the pellet hopper.
Pretty slick and well made rocket stove you got there. Thats what I call heavy duty.
This is my most favorite rocket stove! I can only imagine all the good meals I could make on one of these! 😊
Thanks for your work is so far the best and most beautiful thing I've seen ... ⚅
This rocket stove is an amazing setup!!! As an old machinist, this thing is gonna drive me nuts until I can build one. I have been looking at different rocket stoves for a few years. I've seen some made from soup cans, bricks, concrete/perlite, propane bottles and cob. Yours is hands down the finest rocket stove I've ever seen. I'd sure like to be on the list of folks who could buy the drawings whenever they become available.
I just got back from a 7-man camping/hunting trip and used 5 cinder blocks for my first rocket stove ever. It cooked everything perfectly but, it starting cracking from the very first fire and did so until the last meal. By the end of the trip, if someone would have so much as bumped it, the whole thing would have crumpled into a hundred pieces!!
No one on the trip had ever even heard of a rocket stove. They were blown away by that disintegrating block stove. I can only imagine how they'd react to a first class rig such as yours. You should be proud brother. I'm proud for ya!!!
Does the burner directly over the fire burn hotter than the one closest to the chimney/flue? What is the thickness gap of the heat chamber where the heat travels between burners on it's way toward the chimney?
Thanks for the kind comments! The area directly over the flame is quite a bit hotter than toward the chimney. I've measured over 900°F at the disk. The gap where the flame travels up close the second 'burner' area is about 1/2" above the baffle. I, too, have played with various versions of block rocket stoves and gave up on them. Fired brick is a different story - you can make a nice stove with those.
Some VERY good ideas in here ..... Well done! :)
Very good, small changes and big results.
Congratulations.
Leandro Wagner.
Just AMAZING! you are an inspiration!
Nice construction, bravo !
Very very cool !!! Great ideas: gravity pellet feed, fire burning 'thru' the grate. Great welding. Job well done!
Thanks!
Excellent job.
So you've taken a great stove design to begin with and made it even better! This stove is just ACHING to go into production!
+Andrea Tatham If i had a business partner I imagine we could do pretty well. On my own I'm not so good at turning a profit on these things.
Dear approtechie, you obviously deserve to hook up with someone who could make that dream come true! This unit is absolutely beautiful in it's simplicity and functionality. I love the addition of the pellet burner. That is BRILLIANT!
Being that I am a welder myself, I have a deep appreciation for what you have done here and would almost be inclined to copy your design. However...you've put so much of yourself into this that you deserve full credit for it.
My own design is that the burner assembly is all made out of mortar/perlite mix and the cook-top is an accessory unit (built of steel) that can be fitted to said burner.
I must say that I have enjoyed a number of your videos (including that monstrous Sterling Engine you built!) and I sincerely hope that there is no end to your creativity!
Happy Holidays to you and all of yours!!!
+Andrea Tatham Thank you for the kind comments! Merry Christmas/Happy Holidays to you and yours as well!
Thank you!
LOVE your stove MAN....
he joe thanks for good idea, and greatings from Germany
Great stove! Would be great for our hurricane area.
wow impressive stove.....love it
Amazing work ....... well done
Nice stove
Yiou win the award for tallest smoke stack. Overall Design: Another blue ribbon.
I made a burner much the same as that to mount on my wood stove and it works perfect. I heat my home with it now. I can get the burner tube red hot and the stove over 600 degrees (too hot actually) but I run it around 400 degrees with the air shut down to just 1/4" opening. A 40 lb. bag of pellets last over 10 hours with my setup.
Painter D Do you have a video or photos of it? Would be interesting to see.
even better design .. wow ..
love it!
Le quedó genial! Gracias
MUY BUENA ESTUFA, FELICITACIONES DESDE COLOMBIA
Awesome!
Bravo!
Did you record the build or have plans to share?
he visto muchas estufas rocket muy buenas me atrevo a decir que esta es muy superior a muchas de ellas estoy haciendo una me gustaria disponer de mas informacion o planos del proyecto es fantastico. Muchas gracias por compartir eres genial.
Nice build.
That's a lot of parts.
very nice,very good.A combination of Vendel Kereszteny's an zerofossilfuel's stoves.Excelent job !Congratulations !
Thanks! I got inspiration from both of those builders.
As impressive as this is, it's sad that it's not as easily available on the commercial market like sat, Weber or Coleman. I'd love to be able to walk into a home improvement store or a Walmart and buy something like this.
SUPER !!!!!!!!!!!!!!!!!!
I've been getting into the small form factor house thing, and this stove would fit in, nicely! with that pellet hopper, how long of a burn have you been getting? Important to know, especially if someone is also using this for heat.
A full hopper will give you about 30 minutes, but you can easily build a larger hopper over top of it to give you lots of extra time. Since there's virtually no ash you don't have to worry about cleaning out the ask box often.
Awesome project! I sure do wish you'd provide a running commentary though.
Blue Hill I guess I just need to start doing that. I don't have a good voice for it but maybe can get a friend to do a voice-over.
sweet
Excellent idea. I have access to pellets pretty cheap. Maybe I can make an addition like this with my powerarc
Go for it!
Very nice stove, usable and nice looking! You can use it in a cabin or cottage it is perfect for that!
Is the top cast iron or just steel? Thank you for the nice video.
+uzdindoru The top is just steel, part of a large I-beam.
How long would one full Hopper of pellets burn for
I really want to build one of these... I have most of the materials, except for the cook top... What thickness is the top? I'm thinking it looks to be around 3/16 or 1/4" ? Not a stove to pack around from place to place, but an excellent design, very adaptable to so many uses! do you think it would be a good idea to make a pellet basket out of stainless steel instead of mild steel for longevity? Thanks, you're inspiring me to come up with some really cool stuff!
Mike
Mike G Mike, The cook top is actually made from a piece of steel I-beam. I torched off the sides to make it flat on one side. The thickness is about 3/16", a little thicker near the edges. The stove is heavy but lots of potential to lighten it up some - still not for packing around! The pellet hopper is never in the fire, only the SS grate, so no need to make it from stainless steel. I've burned many pounds of pellets in it with no problems.Glad any time I can be of some inspiration to others!
I built a 2 foot by 4 foot pizza oven on top of a very similar pellet chamber and am having trouble getting up to temp in the baking chamber. Any advice?
Make sure your combustion chamber is insulated (this one has 1.5" of Perlite around it), insulate the outer part of the oven if you can so it retains the heat better, make sure there's adequate airflow through the pellets, keep the oven about 12-16" above the pellet grate so the hottest part of the fire is on the oven. Not sure beyond that without any pics or vids.
I also would love to see a set of plans sir, very much
I like your stove do you have any DIY plans?
I bet you could build a top notch Rocket Stove Steam Engine with generator. There are many on CZcams but I just have a feeling yours would be right. Very nice design!
That would be a fun project! Too many on my plate right now already though. Thanks for the encouragement!
What time?
great videos!
Have you measured the temperature on the cooking surface and the chimney?
angryadrien I've measured up to 950 deg. F at the surface and typically about 350-400 on the chimney.
thanks!
TIENES PLANOS CON MEDIDAS ME GUSTO ESTE DISEÑO, SALUDOS
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@approtechie
approtechie Have you ever gotten that cover plate hot enough that it doesn't hold a magnet any longer?
I like it! You will by the way!
So far I've never had any issue with the magnet getting too hot, but I understand the principle and am careful not to keep it on there for long.
отличное решение
ZikValera Спасибо!
40lb is 18kg btw folks in Europe! This is a great stove - well done and thanks for sharing. I think I'll build one!
Do you have a website or sell the plans/drawings?
Rob Starseed I'm sorry but I don't have any plans published. This was really just a one-off stove for use at a training center. I'm working on putting together some drawings, though.
+approtechie I found some dimensions you gave earlier and from them I recon I can draw up plans. There's a company in Bulgaria who make stoves I would like to make up this one for me as I am retired now and not into the workshop side of things so much as I was. I hope you won't mind if we make a few and sell some. I actually publish some DIY plans for other things on my website - but not stoves yet. www.newearthstar.com and www.newearthstar.com/practicalplans.htm
Rob Starseed Rob, go ahead and make them! I'm happy to be of some inspiration. Let me know how they turn out.
+Rob Starseed If you do use my design I'd appreciate some mention of my video/channel. I saw your website and appreciate your efforts to make simple inexpensive technologies available to those who need them.
+approtechie sure - it would be my natural thing to do - it's the least I can do! Thanks for your kind comments re my website.
how long did it take you to build it.? Have you cooked on the surface?
It was sort of a piecemeal project that took a few weeks of working on it now and then. I added stuff later, like the pellet burner, air controls, oven, etc. We've cooked on the surface many times, sometimes with foil laid down to catch grease and such. I works very well.
I was thinking about the grease as well. I wonder if building up the cooking surface sides to trap the grease and then push it to a corner with a can hanging to catch it. ? When I watched your video, i was thinking grease was running down the sides of the cooking surface and falling onto someones feet below.
very good, the chinatown version is an pizza owen
Could one drive a turbine with the pressure cooker and make electricity? Or distill clean water?
CCMPULM Yes, I'm sure you could do that if it was a small turbine and generator. And, yes, you could re-condense the steam and have clean drinking water, even from salt water. The only thing I might add is a carbon filter as a final stage to catch any light organic chemicals, if present, that might have boiled off with the water. Good thoughts!
Nice build but I was waiting to see a turkey in that roaster.
I know, I know. That little lunch was all I needed to heat at the time, though, LOL.
Muito obrigado pelo vídeo. O que é isso que o senhor coloca para queimar?
I was using oak wood pellets. At the end I used scrap wood.
where you get the pellets
From the local hardware store. Many countries are now making pellets from organic waste matter, like elephant grass and stuff like that.
Hola, espero que alguien me pueda dar la respuesta: por qué siempre se le debe colocar una tapa redonda justo arriba del foco del fuego, que pasaría si no tuviera la tapa?. Me refiero a la que saca con el magneto
En este caso la tapa deja que se puede poner o sacar el "grill" que apoya la leña. Hay tambien en esta estufa una manera de utilizar la olla directamente encima el fuego. Es util tambien para limpiar e investigar lo que pase con el fuego.
Great idea, but those pellets cost money ,you can find free wood everywhere,even junk 2x4s work great cut up for fuel, even if they do have nails in them.
ilililhy1 It will certainly run on dead fall and scrap wood, no problem. That's mostly how we use it. However, the pellets are about $4 for 40 lbs. so not very expensive, and they allow you to leave the stove with confidence for extended periods of time.
you are selling designs ???
would this stove be safe in a house??
Erick Lee I'm sorry, I don't have any for sale. But, yes, I believe it would be safe in a house. Treat it just the same as you would any other wood-burning cook stove. It throws off a LOT of heat so it would be especially good in the winter, but not so nice in the summer.
que es lo que usa como combustible?
+speakonpro .altacoronacrew Wood branches, wood chips, wood pellets, etc.
dry olive seeds, will work better
quien me manda el plano
No hay todavia.
ok
A true "rocket stove" has no chimney whatsoever.
+ turbine Tesla + generator = power ... V ;)