How I Built my Ammo Can Rocket Stove - a Small Homemade Wood Burner (Mk II)

[@christopher_barr]

Watch this stove burn with zero smoke: kzbin.info/www/bejne/jJWag3mtrrarqKs

[@solarpall]

Awesome!! This is genius! I am waiting for the version 111, I would like to see a ash clean out drawer and also buy one from you when finished. :)

[@JediStockTrader]

What is the burn time on one wood fill Christopher?

[@azclaimjumper]

Almost 2 years; I'm still waiting to see what you've come up with for Mk III

[@azclaimjumper]

THIS VIDEO IS ALMOST 3 YEARS OLD; when will you finish with your Mark III? I'd like to suggest you use a 20mm ammo can instead of a 50 calibre ammo can. The increased capacity for wood means you won't have to wake up in the middle of the night to add wood. I've just subscribed & rang the notification bell. Put legs on the stove then add the air intake on the stove's bottom & add a damper to control the air intake volume.

[@igualnimp]

oh waw putting legs what a revolutionnary idea! Any more orders, Sir? Am i free to go, Sir?

[@rcruzriovista]

Love it!!! Some ideas to improve the design is to add a V shaped deflector around the exhaust outlet pipe. This would make the hot gases have to go around one more obstacle before exiting the stove. Another thought is to insulate the baffle to increase temperatures. And another thought is to improve heat exchange by creating a gap between the insulation and the outside wall, and allowing the hot air from the second chamber, (above the baffle) to go into the space between insulation and outside wall metal. This would make all the walls heat exchangers! Also adding a damper to the stove pipe can help regulate burn times.

[@kcjazz62]

Hike Yakima Washington ⬅️ I will chime in with a spark arrester at the flue entrance, which will remain clean by the extreme temps & adding a damper on both the intake & exhaust to control the burn/temps. Once it gets too hot, it needs to be adjustable, which also conserves fuel. I am thinking that an accessory water heater via copper coil that slips over the flue pipe & can be rotated to the sides or back and into a billy-can, etc. would be quite simple. A half-height fold-down warming plate opposite the door would also be simple. To offset the weight of the warming plate, drink warming plates on the door side would suffice. A clean design & great job!...

[@sergiogomezphotography]

Awesome Chris! What happened to the third generation Ammo Can Rocket Stove??? Make it Chris! Thank you for your video, great stuff.

[@christopher_barr]

It's coming one day Sergio - I just have a crazily busy life!... Thank you for watching and commenting. Cheers, Chris 👍

[@russelmurry1564]

U can cast aircrete small batch n us for insulation on the bottom n sides

[@n0ukf]

If you use black iron pipe instead of galvanized, you don't have to worry about poisoning yourself with burning zinc fumes.

[@martindolben9757]

in the rocket elbow on the back, can you put a larger burn box, on top of the elbow?

[@sarahleroux8279]

Okayyyy! Where is MKIII? Good job man

[@daphneraven6745]

Hi, @christopher_Barr: I’m looking around your channel, for the Mark III build video; it’s looking like I’m ready to start building my own, and it’s been too long since I’ve done any welding (not that I did a whole lot of it), so I’m really hoping that you’ve got a welding-free Version, as you alluded to here somewhere. no, it’s entirely possible that you don’t have it done yet, but it’s also likely that I’ve missed it here somewhere. If I just missed it, would you mind putting a reply with a link to the video for me please? And if you haven’t had a chance to make the video, but you have drawn up the plans, is that something you would share? I sure appreciate the hard work that you’ve put into this particular project, and I am more grateful that you decided to share it. Thanks very much and I hope to hear from you soon!😊

[@canoetipper019]

Hello from New Brunswick Canada, Nice looking stove. Is that a .50 Cal belt ammo can? For your Mk III: I wondering if a larger one (like 25mm belted for M242 Bushmaster) would make a better stove for heating a water and a larger space? Also for the inlet and exhaust pipes (hint in the latter) I wonder if you can readily access car exhaust pipes there. Here I could just go to our local Canadian Tire Store and pick some up. lol I missed the first stove, with the copper secondary burn tube, how did you shape it? I would like to see your MkIII build video, but couldn't find it, this one was uploaded three years ago by thelooks of things. Thanks for this one...might just have to give it a try.

[@readingbluemice]

Just had a thunk. Perhaps the stove could be mounted and secured (turnbuckles?) in a tray with legs. That way, it could be solidly mounted (say in a boat), but could also be easily removed for service or beach cooking. Like your work, cant wait for III.

[@christopher_barr]

Thank you for your suggestion Kieran 👍

[@kathrynkenyon785]

THANKS CHRIS! GREAT BUILD...ENJOYABLE VIDEO. The way you built the baffle was great. Not everyone has access or knowledge of welding, so learning that cool trick on putting in the flew is cool. LOOKING FORWARD TO SEEING MACH III!

[@christopher_barr]

Thanks Kathryn - the Mk III is coming one day, (I've already got the design in my head), there just aren't enough hours in the day at the moment! Thanks for watching and commenting. Cheers, Chris

[@williammaisey2918]

What is the insulation again?. Fiber glass? Or is asbestos involved ? Have you any info on fiber glass break down and breathing it in? Where does one get the rope rape you described ...I'm not familiar with that. Thanks again..it is great to learn new things..useful things..Bill

[@christopher_barr]

Hi Bill, thank you for your comment. I used Rockwool insulation. The insulation has withstood the heat very well but in all honesty I hate breathing in any kind of dust whatsoever so I would always advise anyone to avoid breathing in fibres or dust from insulation like this. Stove rope can be bought online or from any wood burner supply store - it's pretty cheap too. It is made from glass fibres so the same applies to breathing in fibres from this. Cheers, Chris 👍

[@victorboucher675]

Mk 4 ... add a turbo boost, call it a Merlin ... my cabin stove just sat there, no rocket feature, it was a 'gasafirer" worked great. The dreaded downdraft can happen during high winds. Added valves "air inhibitors" controls heat out put and fuel burn time. Smaller (and fewer in number) holes in the secondary combustion injectors increases velocity and the resultant turbulence which improves combustion.

[@voltennessee2514]

I enjoyed your video. Have you considered placing a small covered hole (maybe 1/4 inch) on the side where the secondary air intake is, so that you could insert a small metal rod to poke and manipulate the position of the wood inside without opening the main door? This could come in handy when feeding the stove through the primary air intake. The only problem with this that I could see is lining up the wall insulation with hole, you could use a tubular rivet. This would give you a clean and semi permanent alignment. Look forward to seeing the Mk III. Best of luck.

[@christopher_barr]

Hi there, thanks for your comment. There are lots of different options depending on the type of fuel used. If I wanted to use sticks as fuel (as used with many rocket stoves) I would just remove the primary air intake elbow and feed them in directly from the side - in which case, their position could be manipulated by moving the sticks, or as you suggested, via a metal rod through the hole. If using wood pellets as fuel the 90 degree elbow is useful for collecting gravity fed pellets and directing them into the burn chamber. I even plan on experimenting with liquid fuels which could be added once the stove has been fired up with wood... Cheers, Chris 👍

[@BlacksmithTim]

Concerned due to the many painted and galvanized parts that in the initial burns there would be many toxic gases. I'm not going to make recommendations due to modern views on safety and toxicity, as to how to correct. However, there is potential for fatal offgassing from the components used. That's based on 20 years as a blacksmith working with different found metals.

[@gregmilstead1369]

Had a old amo can was going to toss out. Tell I saw your video. Setting on pins and needles waiting for Mark 3.

[@christopher_barr]

👍

[@sarahleroux8279]

Awesome thanks for giving construction details! I.I'm in alaska thats gonna helpful just gonna add my spin!

[@chrisvincentcr2572]

I like your stove, but I am worried about the use of galvanized steel. I believe that galvanized steel can be toxic when heated. I could be wrong, but I wouldn’t wont you to get sick. Thanks for the video and have a great day.

[@simonsimpson4695]

I'm going with Marsh Rat's design but had a notion to test, incorporating your pipe idea to supply fresh air from outside the van. Thus a draft won't be needed as the air for the combustion will come from outside. Thought I'd post this in case you are still monitoring this video.

[@frankdiscussion9988]

The problem with the air intake at bottom of brown flue pipe is....your flue is now running too cold and will creosote-up far quicker.

[@jean-paulgerow548]

Jubilee clamp?.....we have something similar, called a hoseclamp...possibly rhe same?

[@adddad9779]

Hi!!! I'm not sure if you have built your next version or not. This is awesome by the way!!! my only change would be to give up the rocket stove part in exchange for an air intake control system. the benefit to secondary burn us you can choke them down for longer burn times without all the smoke. Just my $0.02, but there may be a very valid reason you didn't do that. Very cool and Thank you for your content.

[@christopher_barr]

Cheers Jason, suggestions are always welcome. Thanks for watching and commenting 👍

[@russelmurry1564]

Chris build them clean from the beginning there r people wanting to buy them n they're buying inferior stoves from bad design but clean work

[@johnelwoodsinejr.789]

Straightening the pellet feed tube for stix will make it easier for feeding and if you make it out of channel steel pipe thats square or rectangular the end can be cut on the corner lines and riveted to the bottom and side of the mark lll to keep the stove rope use down to a minimum....but thats just a design i use here in the states ...hello from the east coast in Virginia...your videos are very useful from my standpoint as a poor man that comps for my peace sometimes.

[@JuniperTrekker]

Pretty neat. Suggestion for the MK3: keep the window but ditch the side door. This simplifies design....... side door not really needed since you feed it through the end. Clean-out can be accomplished through the feed port and/or opening the top. For safety, you could add a hinged cap on outside--of a flush mounted feed port. This could have a few holes in it for minimum air flow and could be propped open for feeding and max air intake. Looking foreword to your next video!

[@christopher_barr]

Thank you for your comment and suggestions. Cheers, Chris 👍

[@russelmurry1564]

Best ideas freaking great site no side door improves this window is nice but not necessary something to get it off the floor I need a heater for my van

[@BarryCampbell6822]

Brilliant, mate. Some great ideas in your stove Chris, I've been stuck on how to affix and secure a flue to a metal box and your clear example solved it for me. Thanks for sharing, subbed!

[@christopher_barr]

Cheers Baz, welcome aboard! 👍

[@nathanlitster9267]

Wondering if this design could be applied to a 20mm ammo can. would the baffle and secondary air be all moved up higher? or stay down low? Thanks!

[@christopher_barr]

Yes, you could use a similar design. I would have the area of the exhaust gas exits at least the same as the area of the flue. I would introduce the secondary air just below the baffle. Cheers, Chris 👍

[@ObamaoZedong]

When galvinized metal is exposed to a flame, it emits toxic gasses.

[@jamesmason7124]

Thank you for sharing your video and thoughts with us I subbed to your channel

[@christopher_barr]

Cheers James, welcome aboard 👍

[@latitudeash]

Good tech, well done. Simple yet effective. Great for camping heat.

[@christopher_barr]

Thank you for your comment. Cheers, Chris 👍

[@johnnyv.7724]

Hi Chris i had been checking videos on you tube you stove is the best i like to now what size is the pipe which going around the stove for Oxygen and also it need the pipe in the back of the stove or is optional thanks for share you invention with us Johnny from New York

[@christopher_barr]

Hi Johnny, thank you for your comment. I used 1/2" i.d. steel water pipes for the secondary air intake but my Mk 1 used copper pipe and I'm pretty sure I'll use copper on the Mk III, as it has superior heat transfer compared to steel. The routing of the secondary air pipe along the burn chamber increases the temperature of the air progressively so that it exits the secondary air outlest holes at a very high temperature. Cheers, Chris 👍

[@MrLongshot762]

Flip the can over and have the lid as a way to dump ash and the bottom will be a good cook surface

[@abdullaex4119]

Well thought out. Controlling the combustion cycle to it's maximum. However I have seen possible improvements. Nice watch by the way...

[@phillipelkins6612]

Hi Chris, Are you any closer to getting the MK3 made yet?, and what size diameter flue did you use? (i bought some rope from a stove shop and the women there said i should not have a flue less than 4 inch or the thing might blow up!) seems a bit much, your thoughts would be greatly appreciated. Best Phil.

[@christopher_barr]

Hi Phil, I'm working on the Mk III but life is crazy busy at the moment! The initial flue section on this stove is 2.5 inches. Above this I have used 3 inch flexible piping as a flue, which worked really well, as well as 4 inch flue sections which also work really well. The smallest flue you generally come across is 4 inches but that doesn't mean your stove will blow up if you use a smaller flue :-D Cheers, Chris 👍

[@timothydube3046]

Loving it. I just started a welding class and for my class project I will build a small stove to go in my tiny house. This information will really help my design. I was looking at the cubic mini wood stoves for design inspiration cubicminiwoodstoves.com/ but could not figure out how they designed their secondary burn chamber. This video helps so much. Thanks for the detailed break down. I wonder, would it be useful/desirable to put a damper on the rocket stove feed tube/air intake or in the exhaust pipe or both? Also a damper on the secondary burn air intake?

[@christopher_barr]

Hi Timothy - reply delayed as your message got filtered into the spam section. You're very welcome. Regarding the dampers - my view on this is that you don't have to restrict anything at all. The stove burns perfectly like this and to increase or reduce output you can regulate the amount of fuel introduced. Good luck and let us know how you get on!

[@yvonneballard-FullRecallNDE]

Suggest bigger window please, do you sell them thank you

[@SasquatchnAround]

your idea for the air intake pipe was great. was having trouble with the draw but I installed what you did and it does phenomenal now. thank you sir.

[@christopher_barr]

Thank you for your comment Chad. My pleasure - congratulations on your build! 👍

[@murphragous]

Malakai Cole - 2 weeks into the Trump Shutdown, more like Make America Wait Again!

[@duhhhh1723]

How is the mica sheet working out ? Can you show us how to cut and drill holes in it please ?

[@ambersimpson9175]

You could make a hopper on that sucker and make a gravity pellet stove

[@mikemcgown6362]

Looks like something any motivated individual could build. Simple build on complex thoughts. Thanks for the video!

[@johnelwoodsinejr.789]

Also another idea...if you could get sheets of stainless or titanium 9,10 ft long and possibly 0.03 thick .(or whatever is the appropiate thickness.) You could use pipe clamps for the form to hold its shape like the comercial camp stoves that you can buy. That would be impressive as ever. I think over there you would say brilliant as the expression goes. I know that solution has never been figured out by folks on the streets yet.

[@nancynightingale6267]

Where do you get the ammo box from? I know police depts here in the US have them, but I bet they wouldn't be giving or selling them to the public. Is there some online store where you get them? Guess one could build it from scratch....needing a welding torch and all. "Real Man" equipment ! Ha ! I bet your system of secondary smoke burn-off is exactly how the Kimberly Smokeless Woodburning Stoves are designed. Kimberly stoves start at $3,000 USD. Nuts !

[@christopher_barr]

Hi Nancy, you can buy them on Amazon: fave.co/2kKKPN2 This prototype has some welding but the Mk III will have none and will be able to be constructed by someone with zero prior experience in building things... I want to make these stoves as accessible as possible to as many people as possible. Cheers, Chris 👍

[@romansten9]

several stores have them.....hardware and farm stores, anywhere that sells guns, local and online, and of course surplus stores, military and non military surplus.

[@danielkaufman208]

Wal-Mart, Harbor freight, Cabelas, gun shows Flea markets.

[@williamwebber6533]

Loved your video brother. Bill from IDAHO. God bless you And Merry Christmas.

[@christopher_barr]

God bless you and yours William. 🙏👍

[@coryf9650]

Will any size Galvanized water pipe work for the second air intake? One last question, how much is the total cost if you buy everything?

[@Maggie-Gardener-Maker]

I looked at the stove for sale that you link in description area of this video. I don't see that stove being the same as the one you show in video because I don't see where it has the secondary burn feature that your stove has.

[@russelmurry1564]

What is all the poop around the inside of the exhaust tube on the inside of the box

[@thenorthernpike4126]

hi chris I'm building this for my 10x10 ice hut that I'm building this summer I have a 6x9 now do u think it will heat a hut up as I am a newbee for wood stoves. and what is the glass made from and where can I get it? what other options. can brazing work instead of welding? lts questions

[@sunbladerr]

This the best article on ammo can rocket stove. Thanks, I can't wait to make one. I don't have the ability to weld at the moment, so this is perfect,

[@christopher_barr]

Hi there, thank you for your comment. The Mk III won't have any welding at all so hopefully it will be perfect for you. Cheers, Chris 👍

[@gunnarstahl2741]

We could only wonder what a du-bu-le-do clip Is

[@christopher_barr]

Another comment which made me laugh! It's a Jubilee clip, a.k.a. hose clamp. Cheers, Chris 👍

[@brianmi40]

Seems like you should try to get the intake air being released below the burning mass of wood, so that convection pulls it in even better. Perhaps the model 3 can have the copper pipe routed beneath the chicken wire that suspends the wood. Then as for the wood feed port, I think that probably takes over as the primary air intake replacing your pipe, since there would be less resistance for the air to come in that way, which is unfortunate and reduces the efficiency. So some means to re-jigger that would be beneficial. Perhaps a longer pipe (like the flue) would let you put wood in it, and then place a cap over it to block the air. Wood / sticks would then gravity feed down in to the fire box, but air would still be drawn through the pipe system.

[@IamDiamondDraco]

I'm late in responding due to being busy but thank you for the explanation Chris! I'm about to get started on my build again and this video was VERY helpful! I started posting details of my build on my website and plugged yours as well. Thanks so much!

[@JBOutdoors]

Awesome video great work! Liked and subscribed

[@russelmurray9268]

Why have the forty-five angle on the second air why not straight on

[@nancynightingale6267]

Just answered my own question about where to buy ammo steel box: eBay. Anywhere from $11 to $39 ! Cool !

[@christopher_barr]

You can get them in lots of different places - Amazon too: fave.co/2kKKPN2 Cheers, Chris 👍

[@markisLem]

Think this would work on a sailboat, maybe mounted to a bulk head (with proper spacing and heat shielding)?

[@christopher_barr]

Yep! I plan on doing this myself one day. Very handy to be able to make hot water for showers from firewood you can scavenge from pretty much any anchorage. This is the reason I started building these stoves... Cheers, Chris 👍

[@MerlynChipman]

What about a tray for removing the ash? It would be nice if you could clean out the ashes without having to remove the lid. I am considering this stove design for a small interior space, with air intake and exhaust from out side.

[@christopher_barr]

This stove burns so efficiently that it creates very little ash - a miniscule amount in fact. If you were using one of these full time than I would estimate that you could go at least a week of constant burning without having to empty the ash. The easy way of having a quick ash-emptying procedure is to attach the ammo can lid and flue to wherever the stove is being fitted (rather than the can body). You can then use the quick-release catch on the ammo can lid to open it up, disengage the hinge, then take the bottom of the can to wherever you are putting your ash. You could have it off, emptied and back on again in about a minute. Cheers, Chris 👍

[@rogerbcr]

love the stove. can't wait for the MkIII

[@christopher_barr]

Cheers Roger 👍

[@calebphelps1836]

Beautiful job i want to make one for teardrop camper

[@troybelanger974]

A great little stove design! Chris here is my 2 cents for your next variation. Wood stoves "suck" the heat out of the room. A cool air intake helps that problem. A piece of duct work could be connected to your rocket intake with a damper to solve that problem. So one would have a rocket stove or a more efficient wood stove. All of the current tent stoves draw from the room. A door on the end of the container rather than the middle could handle longer pieces of wood. So the stove might have to be configured with the hinge on the opposite side to make that work. Good Luck

[@allthesame3856]

nice build, i'm still waiting for MkIII before i build mine. winter is at the door. hurry....

[@mountainhigh6684]

Thankyou Christopher, it’s the most brilliant version of a rocket stove that I’ve seen yet! I love the smokeless part and the shape and size. I’m looking forward to seeing the 3rd version. I hope it will be even more simply built, and I’d like to see you building one from start to finish.

[@rick43pen]

lol. Whatever happened to the mark3? Also what function does the window door serve other then ascetics?

[@gwainly]

Sorry for being a latecomer, can this be made to breakdown to fit inside the ammo can and assemble when needed. Would be great on boke camping trips but size is an issue

[@nyleshintz69]

Ii am Mica as I am a youngster (53) in my B.C.

[@TheDamowalshe]

Excellent, but stop using anything galvanised, deadly, ask any boiler maker.

[@roy_8693]

totally agree heated galvanized metal gives off deadly gas is literally deadly

[@roy_8693]

totally agree heated galvanized steel gives off deadly gases and should never be used for anything like this just use plain black iron pipe

[@tuggermann]

Could exhaust pipe from a car be used, several sizes and shapes.

[@babyjay3055]

Not from the forums i hear once the metal has been oxidized(heat treated) its fine. I think cabelas sells a tent stove made from gavanized steel

[@drdr76]

I was thinking of using ceramic tile instead of thin sheet of metal on the side and back to insulate it. Would that work better? There is plenty of cheap ceramic tile at the local Habitat store.

[@mauriccicastanelli2588]

Thanks Chris, I think the baffle is the secret along with the pipe line on the other side I have watched other people build a stove but so far your's takes the cake, I hope to see the video step by step great job thanks.

[@kimcurtis9366]

Chris, I really like what you have done with this! It is quite efficient and I'm going to build one and then one out of a 20mm ammo can for larger areas! Thanks again, for making the How-To vdeo! Cheers!

[@leonardmagnus8072]

Do you think the Mk II will burn wood pellets and work the same?

[@coryf9650]

Whats your website?

[@christopher_barr]

Hi Cory, it's www.randomchris.com

[@tobender4ever]

I need this. Oh my god. You're amazing. Never stop making videos. What's the difference between the mark 1, 2, and 3?

[@christopher_barr]

Thanks for your comment Adrian! My blog post explains this: randomchris.com/randomness/my-ammo-can-stove-homemade-wood-stove-rocket-stove-with-secondary-burn-system/ Cheers, Chris 👍

[@ObamaoZedong]

@Joe mama What kind of personality does a used condom have?

[@duhhhh1723]

Can't wait for the secret stove and the mach three ,thank you for taking time to share your great ideas 👍

[@haroldhart2688]

WRONG PLACEMENT OF STOVE PIPE - PUT STOVE PIPE ON ELBOW MAKING THE WHOLE STOVE A ROCKET STOVE.

[@kcjazz62]

Harold Hart ⬅️ A double wall flue pipe is possible, but but pipes become dedicated to air flow exclusively. The door is mandatory at that point for fuel feed!

[@sailman9454]

How are you going to feed sticks through a 90 degree bend?

[@leemichel8199]

Folding pot stand would be good

[@joenathan3593]

I just made one just like this thanks to your video. would this thing last for daily use?

[@edwardliddle8184]

Any update on MKIII?

[@cusitoloco]

Hi, nice stove. You said you are not using a glass, so what material is it?

[@christopher_barr]

Hi Tony, it's mica. You can find out more about this stove on my website. Cheers, Chris

[@ChrisS-ep5qy]

excellent discussion

[@Last-Varangian]

Great instructional video Chris! Couple ideas for the next generation build: One, add butterfly dampers in both the large (main) air intake and the exhaust, so you can control the heat better. Two, add a simple, flat, metal sheet surface to the top for cooking, somewhat oversize to accommodate a fry pan, only with a slot cut out of the middle to keep the handle functional for easy portability. Another idea I have, call it a bonus tip, is, for more permanent installations anyway, to add a large, maybe baffled, chamber in the exhaust to capture some of the heat that currently escapes up the chimney, before a second pipe section conducts the exhaust gases out of the living space. This may be a bit too much for this small type of stove, however. Over-complicating it, so to speak, and detracting from its overall simplicity and handiness.

[@christopher_barr]

Hi Bob, thank you very much for your thoughts. I love the idea about the slotted metal cooking surface! Extra heat release from the chimney is a great idea, but this will be dependant on the individual installation and I imagine there will be lots of different uses for these stoves. The Mk III will have a water heater option for off-grid hot water, which I believe will be very useful. Cheers! Chris 👍

[@usergoku]

can i just buy one from you? you should sell them.

[@msmith7638]

How long does it burn with one load of sticks?

[@coreybennewies1866]

Hey did you put holes in the bottom of the pipe or just the top?

[@williampennjr.4448]

great idea's

[@lapalmeal]

I m thinking pallet wood will make a great fuel for one of these stoves. Free unlimited wood supply. Its usually hardwood and easy to cut up with a skill saw. Us a cheap carbide blade to cut through the occasional nail.

[@christopher_barr]

Hi Arthur, any wood you can get for free is a bonus. (I have even scavenged firewood from a beach and then swam back to the boat whilst holding the wood above my head so that I could have a barbecue on board!) Pallets are readily available in many places so are a perfect source of firewood. Cheers, Chris

[@timothydube3046]

I will weld the stove I make with plate metal just to practice welding, but I love that this is able to be made from scrap materials such as old ammo cans with simple bolt and drill design. It gives me an inspiration to make a bunch of these to give away to homeless folks, because they are light and can be easily carried and produce little smoke to irritate those nearby. Here on the West Coast of the USA we have recently had some uncharacteristic severe winter weather temperature drops and as a result a lot of tragic deaths and frostbite injury/amputations to our homeless citizens.

[@christopher_barr]

Hi Timothy, thank you for your comment. Yes, these stoves would be very useful for lots of people in a massive variety of situations. I imagine giving one of these to a homeless person in the winter would be absolutely priceless to them. Good luck with your building - I hope to see these stoves being made all over the world! Cheers, Chris 👍

[@Matsohj]

Looking forward to the Mk III !!!

[@christopher_barr]

I'm working on it... I can't wait to get it out there for people - I just wish there were more hours in the day! Cheers, Chris 👍

[@tareece2406]

fantastic

[@babyjay3055]

Hey chris you should make an atattching anchor (only you woul ld need to invert the design 180') and i would love to see the window on the hinge side aswell THANK YOU FOR THE GREAT INFO

[@christopher_barr]

Cheers Jason 👍

[@TC-dw6wg]

Excellent Chris! Can't wait to see Mk III.

[@martindolben9757]

very interested in the secret smaller stove, something I can carry with me when I'm hunting in the Rocky Mountains.

[@christopher_barr]

I solo hiked and camped in the Canadian Rockies when I was 19 and I definitely wish I had a small wood burning stove with me during that trip. I took a 2 season sleeping bag (in October!) and spent several nights freezing my **** off inside my tent... 😂

[@jeffsnider8503]

🤤🤤🤤🤤🤤😍😍😍😍😍

[@jeffsnider8503]

Uthdjudu

[@brmelectric]

hi chris. Enjoyed your video. as i told you i am 1/2 way through building mine. just curious, you mention another prototype were you used copper pipe for secondary burn pipe, which you said you are going back to. is this a continuous piece of flex copper pipe. or soldered. just woundering if soldered joints would hold out. cheers Bri.

[@christopher_barr]

+Brian Moore Hi Brian, that was a single piece of 15 mm copper pipe, bent with a pipe bender. I hammered the end flat to form a stop end and drilled holes in the area where I wanted to introduce secondary air in a manner similar to this version. I liked the copper secondary air pipe because it was simple, lightweight and the heat transfer rate in copper is incredible. If you wanted to avoid bending the pipe (you can bend copper without deformation using sand or frozen water if you don't have a pipe bender) you could use compression fittings as these provide a good seal without using solder. Good luck with your build! Cheers, Chris

[@brmelectric]

Well I like that idea betta. I can rent the bender. I will be doing a video when im done. I ordered the Mica glass from the link you provided for me. I laid it on my wood stove in garage when it was on and although gets very hot, seems to do the job very well.

[@brmelectric]

Oh Merry Christmas to all.

[@christopher_barr]

+Brian Moore Good stuff, I'll look forward to seeing your stove when it's finished.

[@christopher_barr]

+Brian Moore Merry Christmas! 👍

[@kevinsluder3711]

Not good to use galvanized. It can generate dangerous gases when heated. Great videos!

[@christopher_barr]

Agreed (as per the disclaimer at the bottom of the video description). The first burns of the stove should be done outside in a well-ventilated area and combustion gases should not be inhaled. Cheers, Chris 👍

[@justinuranus8989]

Kevin Sluder , galvanized metal is a zink coating so it doesn't rust, it can be and does burn off in a well ventilated area (outside). After a few long burns you should clean and hi temp paint.

[@KeillorChristopher]

I love that idea I was thinking about building one like that but doing it upside down so the lid of mo-kan is the bottom so that way take that off and it allowed for cleaning so much easier

[@christopher_barr]

👍

[@nicholassutcliffe3994]

Would love to see Mk III video. Did you make it yet?

[@justinuranus8989]

over 100 comments, where is the mk 3 rocket🚀stove build video?

[@christopher_barr]

It's coming, sooner or later - I made this interim video to show people how I made this one so if anyone is in a rush to build one, they now know how to do it..... I have a ton of things on at the moment and I want to make the Mk III really special stove. Patience is a virtue my friend! Cheers, Chris 👍

[@smilerjon3670]

This is my favourite build on youtube. Well thought out and very well broken down to help someone make and understand the workings of it. Thank you :)

[@christopher_barr]

Thank you Jon. :-) Chris 👍