You are right on my wavelength! What you are trying to do is exactly what I’d be interested in doing, we’re I to have access to the workshop that I used to have years ago. I love your attempts at really refining the rocket principles on to a smaller more useful scale. I love it, and thanks !!
As usual you made a great video, mind you I may be jealous because of the lovely tools you use. Being an old fart I just have the old arc welder, never used a mig or a tig and so on BUT you continue to inspire me with great ideas, don't ever stop.
Seems like too much smoke escaping the fuel feed tube at start up. Inside a building this would be unacceptable. This is two years old, so you may have fixed this issue, may be by extending the fuel tube, or using shorter sticks and providing a cover for the feed tube. Your metal working skills are superb! Thanks for the video!
I love your attitude. Give it a go. Since the flow curves back and forth like a snake, and then has a riser at the end, I'd call this a "cobra" style rocket stove.
In Colorado, where it gets very cold at times, we just throw little sticks away instead of making stick incinerators. Sometimes when we're camping, we use them for kindling. We use wedge shaped sticks as adjustable shims in construction. They make great dog toys as well.
I just about seen all the rocket boys and rocket Men on RUclips and I can tell you ,you are the rocket Man.lol that's from one lover of sheet metal to another I can tell you I'm jealous I'd love to have your press brake and guillotine I'd be in heaven I have my own homemade one that fits on my coffee table rather well.lol
Very neat project! I too am drawn to rocket stove projects for some crazy reason. I built my first rocket stove several years back and it was a lot of fun. Your videos are bringing back that desire to build another one. I think I just may do that in the near future now that I have a small shop to work from. Keep on with the inspiring ideas and videos. I really enjoy your channel!!!
@@epiphgd4302 If you do a search for "Rocket Stove Build" on my channel home page you'll find a few videos I made on stoves. One brick rocket stove and several on a Hot Tent wood stove I built a few years ago.
I get a kick out of your fabricating skills 🙂 I really liked a gasifier stove I made out of a 55 gal drum with a 30 inside it; hot, clean burning, little ash (and the grate didn't get too hot, "glad", it was just a barrel bottom). What I've wanted to do is combine the rocket feeder down to the grate allowing for a smaller burn chamber, and to get that heat from the air mixing again by the top burning the gases and smoke. I haven't had the opportunity lately ... but you might 😉
Surround the heat box with another box and fill it with ball bearings, pinballs, then take the finest driest sand and pour it slowly pouring the sand over the ball bearings with a hand held sander to side of box and vibrate that sand filling all voids between the ball from top to bottom. Super dense Mass packed tightly that will hold heat for days. 2 ta 4 hour burn to charge it up.
the bit, bit the bit....addition for kettle genius.... so had some tea. Scavenged parts.... favorite of mine... now how can it be sold..... masterpieces have no price.
What might give you just enough extra draw is to insulate an upper portion of the chimney. I just wrapped my chimney with 3" water-heater-tank insulation; the heat wasn't enough to even wrinkle the insulation's outer covering. I left the covering on the insulation to see if it would melt or anything. Much cheaper than rock wool.
If you use sand on one side and gravel on the other, you can use the sand for high speed cooking and the gravel for a steam bath when you pour water over it.
I like it ! But maybe you should bring the stack to the back to reduce the resistance , or put a extra meter of flue stack . Way to much fire and smoke creeping up in the feed tube ☺
Thanks for your interesting project. Have you considered welding on lots of big flat metal fins to greatly increase the contact with the thermal mass? Good luck, Tim
If you build an outer box (by all means add a few rocks inside the box) but use a 12 volt fan to blow air through the box to blow secondary heat into the room
Generally a good idea, but I don't think you have a full rocket-stove effect happening. You either need to leave the bottom port open or add another air inlet feeding into the combustion area. You should't be getting any smoke coming back up the feed port. That means you don't have good circulation IMO. Just a bit of tweaking is in order.
A gas hot water heater used to have a baffle that ran up the center chimney forcing the air against the sides to heat the water faster which would be heating your mass
Watched again. With the cooler weather, and my new plasma cutter, I'm inspired in this direction again. Please do an update vid to show it in operation, and any changes you've made. PS, Ive been in NZ for 2.5 years now, and a subscriber for 3. My fab skills are vastly improved, I learned to tig in lockdown last year (handy since the fab shop up the road closed down) and I'm tigging fairly well, stainless and mild, sheet metal as well, both hands. Don't have much practice in summer, but will do more fun stuff this autumn. Your last upload disappeared, hope all is well with you all.
Thank Craig, all is well. My lovely wife accidentally uploaded a random piece of footage to the channel. I couldn't leave it up. Great to hear your fabrication skills are getting better. Tig welding is the best. I haven't done much with this stove except use it every Winter to heat the shed. 👍
Excellent! Multipurpose stove. I want to build this. Advise for you dear brother, please bring two more chicken for that single chicken in your home, make for her a family.
Hi loving the compact rocket stove. Just wondered if you case the rocks with sheet steel instead of mesh, then fill in around the rocks with sand would that keep warmer for longer? Chris d
Isn’t one of the advantages of a rocket mass heater that you also build mass around the exhaust pipe to catch all of the energy? The designs I usually see have the exhaust make a horizontal loop with a small rise and when it comes back to the burn chamber is directed to exit the building.
Could you make this modular, so the mass baskets can be lifted off and moved separately? That would make it easier to move around. Maybe one less return on the pipe before going into the chimney stack too. Then it'd be at the back and give you a nice flat top so you didn't have to balance your kettle.
This suggests that you could pile dirt and rocks on both sides of a rocket stove in a hot tent to absorb some of the heat, later radiating it outwards to save a few logs during a cold night. Not sure how you could make a manifold that wouldn't weigh too much... prefab tubes with U joints?
Nice,,wonders why you didn't go right to the top of chimney run and box the whole lot with rocks,then could have used all the heat from the rocks to boil kettle,and create more thermal mass??
I Love this concept, it makes so much sense with the rocks to give off even more heat. AWESOME idea. Wish I had tools other than a hammer, screwdrivers and a drill, I'm so jealous damn !
Good job. Great skills with the tools too. I was thinking about adding some steel heat sinks as well to spread the heat out faster. you could add a small air pocket in the mass as an air induction to spread the heat faster, then close it to retain the heat for longer.
This so badly desing that even gindergarden child wuold make as good rocketstove. If you found sauna you should totally play whit it and find out how does it work... In sauna wooden stove or kiuas are same desing and this not even close to rocket stove.
What do you need For fire? Heat, air & fuel is good way to start you project and remember that hot air allways wanna go up and hotter the air is faster it Will rise and will make a draft if you can deliver fresh intake air.
If you restricted the air at your feeder tube aswell you could slow down the burn and control the heat better. Eventually reducing the length the fire creeps up your riser... nice build video. Thanks.👍
What you are referring to is the Trombe effect he was a french guy who discovered that the heat can be stored and radiates from the earth ,rock or block wall surfaces long after the sun has gone down
Great to learn, the heat comes at the stack not before the stack if you put vertical boxes half way up the stack you will get your heat, ha ! Just a good guess. Have fun 👻
For the mass surrounding your heater, a mixture of 50% concrete and 50% perlite would make a really good, fairly dense and fairly light medium at the same time. It will have good thermal conductivity with the sides of the heater. I saw it done on another you tube channel.
Interesting but I disagree with your RUclips adviser. I quite liked pt 1, but in part 2 there were many points where I had no idea why you were doing certain things. For instance, why did you make the little pockets of perlite and PoParis and put them where you did? I figured they were a thermal barrier but for what? To keep the heat from the fuel store area perhaps but that wouldn't seem necessary. In the first video, you were a good teacher but in the second, not so much. It is so much better when we hear what you are doing and why. Anyway great stuff. Metal shop was my favourite non-academic in high school. You have a great kit too. Cheers.
Stagger those tubes back and forth a half a WIDTH and that should give you more surface to get your heat off into your Mass storage a little bit of inside baffling will probably help too
Good Job 👍 I was thinking it might be a good idea for your flue to go up 1.5 m and sharp u turn back down and then back up again to allow all the heat to be absorbed by the flue mass. So at the exit of the flue you have dramatically lowers exhaust temp and this radiates out to your sheds ambient air . I built one without any insulation with as much surface area as possible to radiate all the energy as possible and wow did it radiate . I used lots of 20 mm rhs square tubes all stuffed into a 100mm rhs exhaust so as to get as much surface area as possible to absorb as much heat generated as possible but warning ⚠️ you have to have it at the first section of flu out otherwise it’s hard to start. You have to get a bit of convection first
With some refinements it could be, but I wouldn't recommend it. There are better designs that are more efficient and produce more heat that are out there. This little stove was just for a bit of fun to bring a bit of warmth to my workshop.
That would be a great winter camp Tent stove get home after a day hunting light the stove cook dinner on it sit around for an hour after with a beer and a yarn with buddies then stoke the fire and go to bed you would be toasty warm until the early hours of the morning when its time to get up and start cooking breakfast for a dawn hunt.
Anyone else ever catch themselves fighting the urge to look away or close their eyes whenever someone is welding something on a RUclips video, or is it just me? :)
Howdy mate, your stove build is GREAT! I appreciate lots of funny moments and jokes. Thanks for bringing a reminder of TOT in your other video. I really miss that dude. Now, what broke a silent listener in me and made me key some letters is what I saw at 9:20. Wheels dude! Wheels! Please drop me a link to a video if these have been used already. If not, we’ll then you know what needs to be on your RUclips grinding list next. 🤣 Thank you for making great content and sharing your projects with the world! Love from Northern Hemisphere!
Thank mate, I miss TOT'S video's too. Those wheels became a mini bike... Not what I expected either 😂. I'm a bit embarrassed with the build video, not much building more racing around the farm. The bike still going strong and gets used to double the kids around the farm on the weekends.ruclips.net/video/2p-0vQTNLaE/видео.html
Why rocks ? Why one side ? What is the best mass for thermal contact, thermal absorption and slow thermal delivery ? Are these the only (and or best) questions ? How can the concept be improved ?
So why Rocks? was a material I had available and it is a material that anybody else making the stove will have access to without too much fuss. Why insulation on one side? because I really wanted to have installation around some the burn chamber, increasing heat inside the stove, every little bit helps. Probably cob would be the best thermal absorption material, it just would have been messy to use and lot more work so I went with rocks. ( and the rocks were more visually appealing) Improvements would include an oil burner attachment, and or a pellet burner cage to drop into the feeder. And I think one less layer in The Zig Zag would also have given me a better hot plate and more draw. Thanks mate
Have you tried using any cement that has foam introduced into it... they use regular dish and laundry soap combination when mixing the water into the cement and whip it with a mixing paddle... it should give mass which is still enough to conduct and radiate the heat
I love the creativity and the intent to go for compact but something is missing. I thought the reason the stack went up the middle and had a shroud around it was to maintain the heat up the stack since being enclosed it stayed hot. This helps the draft keep going hot and heavy. Then when that work is done you extract as much heat as possible for your mass. Sure it will be bulkier but the biggest problem I see you have here is the draft. I think this is because you are sucking out the heat before it can do the drafting work. You are basically adding the mass before the draft generation. Your draft problem will get worse the more mass you add that sucks the heat out. Edit: I see the insulation really helped and your mass is somewhat insulating too. I'd like to see you do the mass thing with the vortex mass heater you made. Only put the mass after the draft generation. I'd like to see you do it because otherwise I have to do it and I can't afford all the steel here in the US. Plus you got one or two tools I don't have. Which is saying something because I collect tools.
Here's a trick I use when welding on the bench. Give it a light spray with canola spray before you start and for steel it is pretty good anti spatter and the no name stuff is less than $2 a can. It doesn't seem to affect the conductivity of the bench and when it gets hot it smells like someone is cooking. It saves having to keep grinding the benchtop. If you get it on aluminium though it causes a few problems when you weld it.
I'm a rocket builder. Metal is a horrible material to make rockets from. Its ok as support, and a form to use lined with insulated firebrick, but wherever fire meets metal, thermal suck happens.... This stove will work as a heater, the metal giving off the heat. If you have mass following it, you'll not get great performance from the mass. My present rocket has about 10 meters of flue after the stove, 3.5 meters goes through a mass.... and I wish it was more... the next stove will improve this.
So I know bamboo is not ideal to burn. But with these Rocket heaters and how the wood feeds in, I always imagine growing bamboo (which is fast to grow) and placing the long stems into the feed. If there would be a way to dry them faster and eliminate the exploding lol
Is there an explanation in the video with what is going on with the tubes you welded together? Like did you make a diagram of this? I wonder what the path is through it.
I've built two rocket stoves out of concrete, only tested the first one so far. That first one is very thick-- cast in a Lowe's bucket (approx. 5 gals.). Burned sticks in it for 2.5 hours, and the whole thing amassed some good heat. Could only keep my hand on it for a few seconds. But after an hour and a half that heat was largely gone (this was outdoors, but no wind and the temp. was only around 70F-- cool, but not cold.). My little shed/workshop is only 12'x12' (about 4 meters x 4 meters). It has no ceiling-- the space is open through the rafters to the roof. Trying to figure out how to add more mass to the thing to warm this space, since a chunk of something only the size of a 5 gallon bucket can't spread a lot of heat in an un-insulated, let alone retain it for very long. I have no floor space for anything much bigger than that, so the "footprint" has got to be pretty close to what I have. I can go UP, but I can't go OUT with more mass. Anyone got any ideas?
Sounds interesting. The only metal-working "tool" I have is a hacksaw, however, so I'm SOL if I need to weld or grind anything (Warning: American Slang). I do have a drill and a tiny drill press. And wrenches (spanners and sockets). So there's that... I'm retired and have only $200.00 left every month after bills (considerably less if I want some beer), so I really can't invest much in equipment-- assuming I had any available space to keep it. I hope you film this build and make it simple enough for those of us who are tool and equipment destitute! Love your videos, keep 'em coming! And thank you for your reply to my comment-- greatly appreciated.
now I understand you want to create a thermal mass so you can emit heat gradually when the fire is out,,, to be honest that is a good thing to try but I would just have a heat exchanger and exchange the heat through air and use your house and furniture as the thermal mass because a few rocks will not be that much to make such a difference... you got the burn efficiency perfect but just your heat exchanging ideas i would argue about
@@LittleAussieRockets great you know newtons law of heat transfer the bigger the difference between the temperature of the medium and the heat element the faster the heat exchange and if you assist it with a low power consuming high volume fan it will exchange heaps of the heat to your room atmosphere which will intern heat up the thermal mass in the house.. the only thing that works against you is if the insulation with the absence of any heat changer at the end will cause lots of the heat to escape from the exhaust... I assume that once you insulated it your exhaust would get much hotter correct me when you put your hand on top and felt no heat that was before the insulation right ? that meant you getting a close to perfect burn which is amazing ...
I miss the commentary, your thought process, and theory. Add significantly to the build. If this model was adapted, to also be a water heater. The residual heat, is what I’m interested in. For heating an outdoor tub. Then holding the temperature, for a few hours, in a Canadian winter.
It seems too me there are several real problems with this 'design'. Lots of resistance to air flow, due to zing zag & very long riser. If you want mass heat, then the stones probably should be IN the hot air flow. Then fins on out side to radiate. But - fun anyway I guess. My bet is the smoke is condensing in the stack.
This design COULD play a major role in "Wood gasifier"" based on its set up. More work involved yes but initially with that said, you can then run a generator from it. Only concern then is spare piston for gen and bearings IF all goes tits up mad max style ONLY food will be the source not fuel.
Yeah, I'm hearing you. I actually have some wood gasifier plans to for a small combustion engine, it's something I've wanted to do for a while and probably should do sooner rather than later.
I have an idea for a new way to make a distiller out of stainless. I think they're making them all wrong. It would be best if it were round, but the concept could be converted to square just as well. I live in the U.S., but if you were here, I'd pay you to make me one. I distill all our drinking water, because they put too many chemicals and fluoride in our water for it to be healthy to drink. I currently use an electric one, but what happens when the power is out? I need one to put on top my woodstove.
I don’t know if you have ever mentioned it to your viewers...... you’re wearing a face shield with dark glass and we’re now watching through a camera lens......but watching arc welding with the Naked eye will burn your retinas fairly quickly. Just a fair warning to people who walk into welding shops.
You are right on my wavelength!
What you are trying to do is exactly what I’d be interested in doing, we’re I to have access to the workshop that I used to have years ago.
I love your attempts at really refining the rocket principles on to a smaller more useful scale.
I love it, and thanks !!
As usual you made a great video, mind you I may be jealous because of the lovely tools you use. Being an old fart I just have the old arc welder, never used a mig or a tig and so on BUT you continue to inspire me with great ideas, don't ever stop.
Thanks mate, I appreciate it 👍
@@LittleAussieRockets Credit where its due mate.
Mad Aussie Scientist...if am not gonna build it am learning how to use the tools...great video
I like watching guys make things in their workshops. My small workshop is below my house. I have to do small jobs but it's fun.
Always give it a go, bro!! Love and respect and best wishes from the Ozarks NW Arkansas, U.S.
Seems like too much smoke escaping the fuel feed tube at start up. Inside a building this would be unacceptable. This is two years old, so you may have fixed this issue, may be by extending the fuel tube, or using shorter sticks and providing a cover for the feed tube. Your metal working skills are superb! Thanks for the video!
Thinking is plastic and making is GOLD
I love your attitude. Give it a go. Since the flow curves back and forth like a snake, and then has a riser at the end, I'd call this a "cobra" style rocket stove.
Nice build and excellent production.
In Colorado, where it gets very cold at times, we just throw little sticks away instead of making stick incinerators. Sometimes when we're camping, we use them for kindling. We use wedge shaped sticks as adjustable shims in construction. They make great dog toys as well.
Cool. I fell asleep (past midnight) so I'll have to watch again...
I just about seen all the rocket boys and rocket Men on RUclips and I can tell you ,you are the rocket Man.lol that's from one lover of sheet metal to another I can tell you I'm jealous I'd love to have your press brake and guillotine I'd be in heaven I have my own homemade one that fits on my coffee table rather well.lol
Very neat project! I too am drawn to rocket stove projects for some crazy reason. I built my first rocket stove several years back and it was a lot of fun. Your videos are bringing back that desire to build another one. I think I just may do that in the near future now that I have a small shop to work from. Keep on with the inspiring ideas and videos. I really enjoy your channel!!!
@@epiphgd4302 If you do a search for "Rocket Stove Build" on my channel home page you'll find a few videos I made on stoves. One brick rocket stove and several on a Hot Tent wood stove I built a few years ago.
I get a kick out of your fabricating skills 🙂 I really liked a gasifier stove I made out of a 55 gal drum with a 30 inside it; hot, clean burning, little ash (and the grate didn't get too hot, "glad", it was just a barrel bottom). What I've wanted to do is combine the rocket feeder down to the grate allowing for a smaller burn chamber, and to get that heat from the air mixing again by the top burning the gases and smoke. I haven't had the opportunity lately ... but you might 😉
Yes, thanks for showing the original, glad a rebuild w/ experience is scheduled..... seriously speaking always a great learning experience.
Good job, well done.
Surround the heat box with another box and fill it with ball bearings, pinballs, then take the finest driest sand and pour it slowly pouring the sand over the ball bearings with a hand held sander to side of box and vibrate that sand filling all voids between the ball from top to bottom. Super dense Mass packed tightly that will hold heat for days. 2 ta 4 hour burn to charge it up.
the bit, bit the bit....addition for kettle genius.... so had some tea. Scavenged parts.... favorite of mine... now how can it be sold..... masterpieces have no price.
man of few words... said a lot... can't compete with that...
Another masterpiece!
What might give you just enough extra draw is to insulate an upper portion of the chimney. I just wrapped my chimney with 3" water-heater-tank insulation; the heat wasn't enough to even wrinkle the insulation's outer covering. I left the covering on the insulation to see if it would melt or anything. Much cheaper than rock wool.
lol . Now that's thinking outside with rocks . cool design
If you use sand on one side and gravel on the other, you can use the sand for high speed cooking and the gravel for a steam bath when you pour water over it.
Marvelous..... Give it a go, I'd have one.....watching you work has helped me in my welding infancy.
So creative.
I like it ! But maybe you should bring the stack to the back to reduce the resistance , or put a extra meter of flue stack . Way to much fire and smoke creeping up in the feed tube ☺
Thanks for your interesting project. Have you considered welding on lots of big flat metal fins to greatly increase the contact with the thermal mass?
Good luck,
Tim
This solves some issues I have been thinking about. Thankyou. Shalom ilu all
If you build an outer box (by all means add a few rocks inside the box) but use a 12 volt fan to blow air through the box to blow secondary heat into the room
Nice looking stove
Looking forward to your rocket stove with sandbattery combi
I think you should put stones on both sides 0f the stove for more heat output. And a bigger feeder tub for the wood. Dennis
Generally a good idea, but I don't think you have a full rocket-stove effect happening. You either need to leave the bottom port open or add another air inlet feeding into the combustion area. You should't be getting any smoke coming back up the feed port. That means you don't have good circulation IMO. Just a bit of tweaking is in order.
A gas hot water heater used to have a baffle that ran up the center chimney forcing the air against the sides to heat the water faster which would be heating your mass
Эх, жаль по инглишу не шпрехаю, впрочем и без перевода всё толково показано, мужик молодец, однозначно.
Watched again. With the cooler weather, and my new plasma cutter, I'm inspired in this direction again.
Please do an update vid to show it in operation, and any changes you've made.
PS, Ive been in NZ for 2.5 years now, and a subscriber for 3. My fab skills are vastly improved, I learned to tig in lockdown last year (handy since the fab shop up the road closed down) and I'm tigging fairly well, stainless and mild, sheet metal as well, both hands. Don't have much practice in summer, but will do more fun stuff this autumn. Your last upload disappeared, hope all is well with you all.
Thank Craig, all is well. My lovely wife accidentally uploaded a random piece of footage to the channel. I couldn't leave it up.
Great to hear your fabrication skills are getting better. Tig welding is the best.
I haven't done much with this stove except use it every Winter to heat the shed. 👍
Excellent! Multipurpose stove. I want to build this. Advise for you dear brother, please bring two more chicken for that single chicken in your home, make for her a family.
Hi loving the compact rocket stove. Just wondered if you case the rocks with sheet steel instead of mesh, then fill in around the rocks with sand would that keep warmer for longer? Chris d
Isn’t one of the advantages of a rocket mass heater that you also build mass around the exhaust pipe to catch all of the energy? The designs I usually see have the exhaust make a horizontal loop with a small rise and when it comes back to the burn chamber is directed to exit the building.
Could you make this modular, so the mass baskets can be lifted off and moved separately? That would make it easier to move around. Maybe one less return on the pipe before going into the chimney stack too. Then it'd be at the back and give you a nice flat top so you didn't have to balance your kettle.
Nice Lil' Stove! Thanks Mate
This suggests that you could pile dirt and rocks on both sides of a rocket stove in a hot tent to absorb some of the heat, later radiating it outwards to save a few logs during a cold night. Not sure how you could make a manifold that wouldn't weigh too much... prefab tubes with U joints?
Nice,,wonders why you didn't go right to the top of chimney run and box the whole lot with rocks,then could have used all the heat from the rocks to boil kettle,and create more thermal mass??
That's were I would have liked to have gone with this build. Ran out of time and steel.
I Love this concept, it makes so much sense with the rocks to give off even more heat. AWESOME idea. Wish I had tools other than a hammer, screwdrivers and a drill, I'm so jealous damn !
Well, you are half way there
Buy more, second hand.
Love your content mate, never stop!
Good job. Great skills with the tools too. I was thinking about adding some steel heat sinks as well to spread the heat out faster. you could add a small air pocket in the mass as an air induction to spread the heat faster, then close it to retain the heat for longer.
This so badly desing that even gindergarden child wuold make as good rocketstove. If you found sauna you should totally play whit it and find out how does it work... In sauna wooden stove or kiuas are same desing and this not even close to rocket stove.
What do you need For fire? Heat, air & fuel is good way to start you project and remember that hot air allways wanna go up and hotter the air is faster it Will rise and will make a draft if you can deliver fresh intake air.
Like your rock heat sink...I think I can use that idea to capture and store some of the heat that wants to escape up the exhaust of my stove.
That's a really neat little set up. I could see my self out right copying it as is.
Good job prety nice
“Really” cool…. I need one in my shed
If you restricted the air at your feeder tube aswell you could slow down the burn and control the heat better. Eventually reducing the length the fire creeps up your riser... nice build video. Thanks.👍
I live in Korea.
I'm enjoying it.
I really want to go and meet you someday.
What you are referring to is the Trombe effect he was a french guy who discovered that the heat can be stored and radiates from the earth ,rock or block wall surfaces long after the sun has gone down
use a tourch to pre heat the top of the fluepipe and it creates better draft to start your fire..
Great to learn, the heat comes at the stack not before the stack if you put vertical boxes half way up the stack you will get your heat, ha ! Just a good guess. Have fun 👻
For the mass surrounding your heater, a mixture of 50% concrete and 50% perlite would make a really good, fairly dense and fairly light medium at the same time. It will have good thermal conductivity with the sides of the heater. I saw it done on another you tube channel.
Thanx for the tip
Interesting but I disagree with your RUclips adviser. I quite liked pt 1, but in part 2 there were many points where I had no idea why you were doing certain things. For instance, why did you make the little pockets of perlite and PoParis and put them where you did? I figured they were a thermal barrier but for what? To keep the heat from the fuel store area perhaps but that wouldn't seem necessary. In the first video, you were a good teacher but in the second, not so much. It is so much better when we hear what you are doing and why.
Anyway great stuff. Metal shop was my favourite non-academic in high school. You have a great kit too.
Cheers.
Thanks for the feedback mate. I will make more informative video's, as your comment is one of many along the same line. 👍
Nice job. I have a similar issue with the coals & ashes building up on my stoves. I'm going to try adding a grate and ash pit on my next stove.
Stagger those tubes back and forth a half a WIDTH and that should give you more surface to get your heat off into your Mass storage a little bit of inside baffling will probably help too
You use soldering flux core? tank you for video!
If you see some smoke or flame float out the inlet that means not enough draw.
Okay. I got to the end eventually. Sweet build, and it works :-)
I just got finished installing it in the shed, then had to go to work 😫
Good Job 👍 I was thinking it might be a good idea for your flue to go up 1.5 m and sharp u turn back down and then back up again to allow all the heat to be absorbed by the flue mass. So at the exit of the flue you have dramatically lowers exhaust temp and this radiates out to your sheds ambient air . I built one without any insulation with as much surface area as possible to radiate all the energy as possible and wow did it radiate . I used lots of 20 mm rhs square tubes all stuffed into a 100mm rhs exhaust so as to get as much surface area as possible to absorb as much heat generated as possible but warning ⚠️ you have to have it at the first section of flu out otherwise it’s hard to start. You have to get a bit of convection first
Great.
Could this rocket also work inside the house ? I Saw some smoke getting out of the wood inlet at some points.
With some refinements it could be, but I wouldn't recommend it.
There are better designs that are more efficient and produce more heat that are out there.
This little stove was just for a bit of fun to bring a bit of warmth to my workshop.
That would be a great winter camp Tent stove get home after a day hunting light the stove cook dinner on it sit around for an hour after with a beer and a yarn with buddies then stoke the fire and go to bed you would be toasty warm until the early hours of the morning when its time to get up and start cooking breakfast for a dawn hunt.
You are speaking my language mate. 👍
Have a bypass plate in your zig zag to use when lighting it.
A sliding plate ? At the bottom of the chimney.
Anyone else ever catch themselves fighting the urge to look away or close their eyes whenever someone is welding something on a RUclips video, or is it just me? :)
No it"s not just you. I did it too.
50:00 , Yep I'm with you. How can you wait 2-3 days for paint to cure?
Its always been my problem. Wait for paint to dry? Pfft heat all the iron up to 300 degrees and the paint dries almost instantly. heh.
NICE JOB BRO
Look up Slim Potatohead. He created a camper stove. He fabricated a neat woodpellet feeder
I did mate, it looks good. I will have to make a pellet feeder for for my one. 👍
Be good if this could be used as a waste oil burner too.
Howdy mate, your stove build is GREAT! I appreciate lots of funny moments and jokes. Thanks for bringing a reminder of TOT in your other video. I really miss that dude. Now, what broke a silent listener in me and made me key some letters is what I saw at 9:20. Wheels dude! Wheels! Please drop me a link to a video if these have been used already. If not, we’ll then you know what needs to be on your RUclips grinding list next. 🤣 Thank you for making great content and sharing your projects with the world! Love from Northern Hemisphere!
Thank mate, I miss TOT'S video's too.
Those wheels became a mini bike... Not what I expected either 😂. I'm a bit embarrassed with the build video, not much building more racing around the farm. The bike still going strong and gets used to double the kids around the farm on the weekends.ruclips.net/video/2p-0vQTNLaE/видео.html
Why rocks ?
Why one side ?
What is the best mass for thermal contact, thermal absorption and slow thermal delivery ?
Are these the only (and or best) questions ?
How can the concept be improved ?
So why Rocks? was a material I had available and it is a material that anybody else making the stove will have access to without too much fuss. Why insulation on one side? because I really wanted to have installation around some the burn chamber, increasing heat inside the stove, every little bit helps. Probably cob would be the best thermal absorption material, it just would have been messy to use and lot more work so I went with rocks. ( and the rocks were more visually appealing) Improvements would include an oil burner attachment, and or a pellet burner cage to drop into the feeder. And I think one less layer in The Zig Zag would also have given me a better hot plate and more draw. Thanks mate
I'm planning on doing a set up like this using water as the thermal mass to heat a spa pool.
Have you tried using any cement that has foam introduced into it... they use regular dish and laundry soap combination when mixing the water into the cement and whip it with a mixing paddle... it should give mass which is still enough to conduct and radiate the heat
Love it! Wish you were selling them. 😁
I love the creativity and the intent to go for compact but something is missing. I thought the reason the stack went up the middle and had a shroud around it was to maintain the heat up the stack since being enclosed it stayed hot. This helps the draft keep going hot and heavy. Then when that work is done you extract as much heat as possible for your mass. Sure it will be bulkier but the biggest problem I see you have here is the draft. I think this is because you are sucking out the heat before it can do the drafting work. You are basically adding the mass before the draft generation. Your draft problem will get worse the more mass you add that sucks the heat out. Edit: I see the insulation really helped and your mass is somewhat insulating too.
I'd like to see you do the mass thing with the vortex mass heater you made. Only put the mass after the draft generation. I'd like to see you do it because otherwise I have to do it and I can't afford all the steel here in the US. Plus you got one or two tools I don't have. Which is saying something because I collect tools.
Can we use it inside to home because it’s smokes????
Here's a trick I use when welding on the bench. Give it a light spray with canola spray before you start and for steel it is pretty good anti spatter and the no name stuff is less than $2 a can. It doesn't seem to affect the conductivity of the bench and when it gets hot it smells like someone is cooking. It saves having to keep grinding the benchtop. If you get it on aluminium though it causes a few problems when you weld it.
Best use for canola oil I've ever heard. Thanks mate 👍
Does perlite hold heat? WOndering if there are any lite weight alternatives to mass.
I'm a rocket builder.
Metal is a horrible material to make rockets from. Its ok as support, and a form to use lined with insulated firebrick, but wherever fire meets metal, thermal suck happens....
This stove will work as a heater, the metal giving off the heat. If you have mass following it, you'll not get great performance from the mass.
My present rocket has about 10 meters of flue after the stove, 3.5 meters goes through a mass.... and I wish it was more... the next stove will improve this.
I agree 💯 . What I have on hand is the major factor in my builds. I would love to build a proper rocket stove one of these days.
Cheers Walz
So I know bamboo is not ideal to burn. But with these Rocket heaters and how the wood feeds in, I always imagine growing bamboo (which is fast to grow) and placing the long stems into the feed. If there would be a way to dry them faster and eliminate the exploding lol
You have got me thinking 👍
@@LittleAussieRockets Change the world man.
Horror,, you don’t have Robertson screws?
I thought for sure, this was going to be a water heater build. It does look great for a sauna.
what about Lava rocks to hold the heat?
I think you could have built the wood feeder in 45 degrees slant to prevent the wastage of vertical fire coming from the feeder.
I'm curious as to why he leaves the tip of the torch in the weld when he is tigging the stainless steel
Is there an explanation in the video with what is going on with the tubes you welded together? Like did you make a diagram of this? I wonder what the path is through it.
I've built two rocket stoves out of concrete, only tested the first one so far. That first one is very thick-- cast in a Lowe's bucket (approx. 5 gals.). Burned sticks in it for 2.5 hours, and the whole thing amassed some good heat. Could only keep my hand on it for a few seconds. But after an hour and a half that heat was largely gone (this was outdoors, but no wind and the temp. was only around 70F-- cool, but not cold.).
My little shed/workshop is only 12'x12' (about 4 meters x 4 meters). It has no ceiling-- the space is open through the rafters to the roof. Trying to figure out how to add more mass to the thing to warm this space, since a chunk of something only the size of a 5 gallon bucket can't spread a lot of heat in an un-insulated, let alone retain it for very long. I have no floor space for anything much bigger than that, so the "footprint" has got to be pretty close to what I have. I can go UP, but I can't go OUT with more mass.
Anyone got any ideas?
Just a thought. Grab a pair of brake drums off a truck and make a pot belly stove/rocket. I will be making one for my barn.
Sounds interesting. The only metal-working "tool" I have is a hacksaw, however, so I'm SOL if I need to weld or grind anything (Warning: American Slang).
I do have a drill and a tiny drill press. And wrenches (spanners and sockets). So there's that...
I'm retired and have only $200.00 left every month after bills (considerably less if I want some beer), so I really can't invest much in equipment-- assuming I had any available space to keep it.
I hope you film this build and make it simple enough for those of us who are tool and equipment destitute!
Love your videos, keep 'em coming! And thank you for your reply to my comment-- greatly appreciated.
There shouldnt be any smoke coming up through where you add wood.
Love watching your work is there anyway you can put a small filter up when you wield for those old farts like me
Thanks Cole and yes I have been making a greater effort to lessen the intensity of my welding shots
now I understand you want to create a thermal mass so you can emit heat gradually when the fire is out,,, to be honest that is a good thing to try but I would just have a heat exchanger and exchange the heat through air and use your house and furniture as the thermal mass because a few rocks will not be that much to make such a difference... you got the burn efficiency perfect but just your heat exchanging ideas i would argue about
I agree with you. If I was going to build another one I would improve the heat exchange. 👍
@@LittleAussieRockets great you know newtons law of heat transfer the bigger the difference between the temperature of the medium and the heat element the faster the heat exchange and if you assist it with a low power consuming high volume fan it will exchange heaps of the heat to your room atmosphere which will intern heat up the thermal mass in the house.. the only thing that works against you is if the insulation with the absence of any heat changer at the end will cause lots of the heat to escape from the exhaust...
I assume that once you insulated it your exhaust would get much hotter correct me
when you put your hand on top and felt no heat that was before the insulation right ? that meant you getting a close to perfect burn which is amazing ...
I miss the commentary, your thought process, and theory. Add significantly to the build.
If this model was adapted, to also be a water heater. The residual heat, is what I’m interested in. For heating an outdoor tub. Then holding the temperature, for a few hours, in a Canadian winter.
Great build you might want to look at this video start at minute 2:12 if you want to see your application.Thanks for sharing
It seems too me there are several real problems with this 'design'. Lots of resistance to air flow, due to zing zag & very long riser. If you want mass heat, then the stones probably should be IN the hot air flow. Then fins on out side to radiate. But - fun anyway I guess. My bet is the smoke is condensing in the stack.
This is a good idea!!!
Why not weld a metal barrel to the mass area so you could boil water for a bath
Wouldn’t it be a good idea to go as high as possible with the thermal mass, over the top and up around the stack?
This design COULD play a major role in "Wood gasifier"" based on its set up. More work involved yes but initially with that said, you can then run a generator from it. Only concern then is spare piston for gen and bearings IF all goes tits up mad max style ONLY food will be the source not fuel.
Yeah, I'm hearing you. I actually have some wood gasifier plans to for a small combustion engine, it's something I've wanted to do for a while and probably should do sooner rather than later.
Is the heat running serpentine in the center of the stack? I asked this question before I saw pt.1.
very inspiring. thank you. have you considered adding a thin wall of gravel on the sides of the exposed part of the horizontal chimney?
I imagine where you live there isn't much of a need for a rocket stove
I have an idea for a new way to make a distiller out of stainless. I think they're making them all wrong. It would be best if it were round, but the concept could be converted to square just as well. I live in the U.S., but if you were here, I'd pay you to make me one. I distill all our drinking water, because they put too many chemicals and fluoride in our water for it to be healthy to drink. I currently use an electric one, but what happens when the power is out? I need one to put on top my woodstove.
I don’t know if you have ever mentioned it to your viewers...... you’re wearing a face shield with dark glass and we’re now watching through a camera lens......but watching arc welding with the Naked eye will burn your retinas fairly quickly. Just a fair warning to people who walk into welding shops.