High Power Coil Jet Alcohol Stove without JB-Weld

This is high power version of Coil Jet type alcohol stove without JB-Weld. I tried to make powerful version than previous single leg version.
As I described before, Coil Jet type that using JB-Weld for pipe fixing and sealing has fatal problem. The problem is the pipe becomes over than 300 degree C of JB-Weld's heat‐resistance spec. This video shows one of solution that don't use JB-Weld.
剛火力バージョンのオートウェルドを使わないコイルジェット型アルコールストーブ
前回公開したように、JB-Weld（オートウェルド）をパイプの固定と密閉に使ったコイルジェット型アルコールストーブは、耐熱限界を超えるという致命的な問題があります。前作は1本足のため火力がイマイチだったので、今回は2本足にして結構な火力を得ることができました、必要な工具もこっちの方が少ないので、作業は面倒でもトライしやすいかもしませんね。
個人で楽しむ分にはどんどん真似して遊んでください。でも売るのは無しです。

[@joaorocha555]

I still have a similar burner like this with following minor differences: 1- coil pipe ends, one extremity, near tank top. The other, longer, near bottom of tank. NO WICK! 2- to ignite: we turned tank upside down. 1 or 2 drops of fuel came out from small hole, deposited on top of tank. Then set fire to this fuel. Pressure created by vapours in coil, forced fuel to come up along longer "leg" of coil, to burning hole, closing the cycle. To get hotter flame, burning coil was sorrounded by a perfurated thin tube that acted as ventilator. Got light blue hot flame. Had a "safety vale/fuel intake" similar to this. Worked perfectly!

[@hyperhektor7733]

i would add a "preheater"-wick under the coil (like a normal oil lamp) wich heats the coil. The reason is, so there is no need for a special lighter. It would start with a normal lighter/matchstick

[@SpiffyFurFamily]

I have made two of these and I keep getting black buildup on the cooper coil that gives lots of black smoke and eventually extinguish the flame. Does anyone know what is wrong? I tried two different types of cooper coil from two different companies and 2 types of 99% isopropyl alcohol.

[@AMC-eq3jr]

A little masterpiece Thanks for sharing.

[@ww07ff]

Could you try to burn used cooking oil instead of alcohol?

[@awatt]

1st I built one of your stoves (hoop) many years ago and it still works well. This may well be my next project.....

[@tetkoba]

That would be nice!

[@mrguppy1016]

WHAT DID YOU USE TO THREAD THE LIL PIPE..???

[@mattomite]

I used an electricians step drill for a clean hole.....

[@urs7288]

So neat! and pretty efficient - like 11ml of alcohol for 400ml of water. I guess this comes with higher pressure flame, so it mixes well with air. Ever had one of these cuties blow up due to overheating?

[@foxereding]

ついに耐熱温度を気にしなくても良くなったんですね！

[@kickemassicus]

Other than the no jb weld I’m not sure what the difference is between your build and every other coil build or why it burns so hot. Is it because of the size of the hole drilled? What size is it?

[@leesimon85]

How to fix the screw without copper tube on the cover at 1:20? Here it is. At 1:22, the screw without copper tube on the inside of the cover seems to have a washer. Is the washer fixed? 1:20にカバーに銅管のないネジを固定するにはどうすればいいですか？1：22に、カバーの内側に銅管のないネジにワッシャーが付いているようです。ワッシャーは固定されていますか？ Thanks.

[@CesarIvan-sp2ln]

Cuanto dura el combustible

[@DRACO1090805]

Maestro buena noche, ¿que tipo de metrica uso para hacer el hilo al tubo de cobre?, probe con una metrica M6, pero apenas si hace algo en el cobre. Gracias y saludos desde Colombia

[@bsimpson6204]

Could it not pre-heat from a pool of spirit in the top?

[@stoneblue1795]

That's an angry, bad ass little hiss banger right there (and I like it a lot).

[@hakansak07]

Can we use car gasoline ?

[@amacalva]

素晴らしい火力です。この動画を目にし感動して同じ工程で作ってみたのですがどうしてか火力が低くろうそくのようになってしまいます。難しいですね。

[@michaelwillconquer5931]

What size copper coil did you use and what size tap and die/thread

[@RedwolfDogrocket]

10mm copper and i packed it with sodium bicarbonate but anything like sand, any cheap powder. One guy used iron filings, ive seen sugar used! This stops the tube kinking whilst you wrap it round an object. I used a 28mm bit of old pipe but i would like to have done it a bit bigger as i have a bigger can now! The hole i used was a 2mm drill bit but i eouls suggest using so.ething to mark the hole position, make an indent with a good screw tip and a hammer tap to stop drill bit slipping and when you are nearly through to stop and finish with another screw tip and hammer tap to puncture it so its more like 1mm. I used a bit of copper wire to push in a wick cut from an old flannel and i left the copper wire in there to act as a heat element and it worked really well!!

[@СергейПарфёнов-к9у]

Отлично! Какого диаметра отверстие?

[@treborikki]

Always a pleasure to watch and in always amazement of your ingenuity!

[@michaelconquer2288]

Thank you for showing this video this is the best one ive seen period .

[@nojaysimpson]

I think if you run the copper tube all the way to the bottom, leaving about 5mm for the wick to stick out, the thermal conductivity of the copper tubing would vaporize the alcohol faster and thus create a higher power flame.

@@WillSurvive2TheEnd Still no uploaded videos...

[@wascalywabbit]

​@4yrs later and still no upload.. 😂😂😂😂

[@JohnKade]

I'll try to make this stove, thank for this video!

[@marmac567]

No good for my fry up,,,,, just burns middle of pan

[@BertHeideveld]

Perfect stove , thank you , wat is the diameter of the sprayer hole ?

[@tetkoba]

0.9mm jet hole.

[@BertHeideveld]

Thank you.

[@firkanhartanto4138]

I've tried threading the pipe just like you, but the leak is above the nut

[@钟吾讲]

从bilibili网站搜过来，终于见到原创频道。炉子很精致，无jb粘着设计思路很实用

[@goosecaboose138]

is this denatured alcohol? or isopropyl? i can only get a small yellow flame from mine

[@kke]

That copper tube is very difficult to thread.

[@kke]

From what I've now read on the internets, people who work with copper (plumbers, etc) do not put threads on copper. They solder on a brass fitting that has threads. I tried tapping my pipe and it's very difficult. The pipe twists around it's own axis, the tapping die gets stuck after each little bit of turn, the threaded part of the pipe becomes very brittle because it gets so thin. Maybe it works a little bit better if the pipe has not been annealed, but what I can get from the hardware shop seems to always be pre-annealed.

[@kke]

Maybe it would be possible to drill/grind away the threads from an aluminium rivet nut after installing it and solder the copper pipe directly to it. There are also brass rivet nuts. This would allow building the stove without cutting the container in half first (if using for example a camping gas container). Lead-free solder melts at around 220 celsius, JB weld and the various copper based gasket sealants can handle about 350 celsius.

[@RychaardRyder]

could you try to design some sort of metal arms to hold a mantle from an aladdin oil lamp over it? it would make a very practical light

[@ARCSTREAMS]

fuel port is lose how you fasten shut?

[@haryogim.1354]

I try to make E frevo stove and its work thanks tetkoba for the tutorial. But why my stove cant boild 1 lt water. Is that to much?

[@rhchannel2371]

Thank's

[@ARCSTREAMS]

only 1 cup? take too long man

[@anthonyporcarellosr3627]

Where do you get the wicks?

[@AldoSchmedack]

Anthony Porcarello Sr eBay or Amazon

[@joepalermo3836]

How did you get the threaded pipe ?

[@joepalermo3836]

Fenrir : didn’t think soft copper would hold threads very well guess I was mistaken I’ll give it a shot thanks !

[@fenrir7969]

@@joepalermo3836 I guess as long as you are careful when cutting the thread and don't remove/replace the pipe too many times they should be okay. It is even possible to cut a thread into wood so copper should be fine. If you've never used a tap or die before I'd recommend looking it up. It might look simple enough but there are a few things to bear in mind to help cut a good clean thread.

[@joepalermo3836]

Fenrir : I’ve cut many threads in my line of work on metal rods and steel tubing of all kinds but never on soft copper tubing lol I will definitely give it a shot again thanks !

[@unclej8022]

The best design alcohol stove. Thanks. Arigato gozaimasu.

[@aodh5966]

This is amazing, I'd like to see more like this. It looks like it would work better in wind

[@eugene4663]

can I use gasoline? if you pour fuel on the stove and set it on fire, it will warm itself

[@tetkoba]

Basically YES. This burning method is same as old BORDE-BURNER, Scout Stove or Tykit. But thermal management is very important for safety.

[@mrdojob]

@@tetkoba Might be worth trying gasoline. While it is certainly dangerous I think the results of a full spill of ethanol and full spill of gasoline are the same. I think the full metal designs you have are brilliant for their safety. The mason jar ones made by others make me cringe at times. I was thinking of making one with a flat box as it's tank. Something that might hold a litre. I want it as flat and thin as possible to allow it to wick up thicker fuels and make it very hard to knock over. I want to try and see how thinned down diesel will work seeing that some people use it in kerosene space heaters. Even biodiesel might be possible. I think a full metal version of something like this with a large tank and some sort of heat shield for safety will make a useful room heater. That blue flame looks like it burns very cleanly.

[@a.m.9357]

Would it work with kerosene?

[@kke]

Is there any problem with these pressurized stoves if making a big one that can take like half a liter of fuel? How is it possible that they don't need any air intake port, doesn't it try to create a vacuum inside the container?

[@killerdeamonking]

No , the gas pressure builds up inside as the coil heats up it makes pressure which then vaporizes and makes pressure.

[@bsngulibsn2642]

How to get blue flame?

[@royallan3717]

Love it, very tidy job

[@opposites-369]

Where ia the hole on pipe?

[@handayaninurul1078]

Nice bro.

[@julesgardet659]

I’m here mostly for the music.

[@afifsyaifuddin9001]

Nice.

[@kourimyoucef4761]

عمل موفق

[@didijuliadydillim]

Nice.. should try this..

[@shoei3633]

銅管挿入部分以外のアルコールを入れる部分の雌ネジは何を使われていますか？（リンクあれば助かります。） もう一点、ウイックとは何でしょうか？

[@tetkoba]

一般名称でブラインドナット、商品名エビナットで径はM６（検索で出ます）。ウィックは燃料を毛細管現象で吸い上げる芯材でこの作例ではカーボンフェルトを使用。

[@shoei3633]

有難うございます。リベッター見たいのでプレスして付けるんですね！ なるほどです。

[@AldoSchmedack]

Awesome video! Excellent stove. Good music. Where did you get the copper?

[@AldoSchmedack]

And stay safe from covid19

[@いろいろ釣っちゃるばい]

この銅管のネジ切りは良い道具がありますか？

[@tetkoba]

ダイスで検索すればいくらでも出てきますよ。ふつーにホームセンターでも売ってますし。

[@いろいろ釣っちゃるばい]

tetkoba's Alcohol Stove Addict返信 ありがとうございます！エポキシの方法だと臭いが気になるし、他に良い方法はないものかと模索していました。試してみます

[@サンスケ380]

空き缶は何を使われていますか？

[@tetkoba]

上はタリーズ、下は忘れましたが、現在は缶自体のモデルチェンジで入手不能です。この時は何もせず嵌合できる微妙に細い缶があったんですけどねえ。

[@サンスケ380]

ありがとうございます。缶底がフラットでないとどうしても気化されたアルコールが漏れてしまいます。やはり凹みの缶では難しいのでしょか？

[@tetkoba]

@@サンスケ380 いいえ、タリーズがフラットボトムになる前は普通の缶で作ってましたよ。パイプの前にボルトを付けて、ボルトが垂直になるように缶底を変形させればOKですよ

[@komporportableunik9171]

😁👷

[@Sobrevivendoaojogo]

Perfect 👍

[@BrokenLifeCycle]

What other fuels can this run on?

[@KlusterFux]

You didn't show how you threaded the ends of the copper tube!?

[@tetkoba]

kzbin.info/www/bejne/romafZxul72NpZY

[@青山充-t3l]

どうやってねじ切りしているのでしょうか。小生は上手くいかないのです。

[@tetkoba]

普通に手作業でやってるだけで特別なことはしてませんよ。もしかして粉々に崩れていってしまうとか？　それならパイプの肉厚の問題で、例えば外経6mm肉厚1mmのパイプにM6x1.0のダイスじゃ無理です。私は1.2mm厚を使ってます。

[@青山充-t3l]

早速のご返事有難うございます。その通りです。粉々になってしまいます。肉厚の問題なのですね。トライしてみます。有難うございました。

[@TheZinum]

how did you get alcohol in? in the video it doesn’t show how to attach this nut to the can, is there a detailed video?

[@tetkoba]

I'm using blind nut.

[@lmartin23]

Awesome

[@chuckboiz]

man, i love your channel.

[@mostafahafez6446]

Hi I made a jet coil, but alcohol did not catch fire from the hole in the copper rod. What can I do to catch fire?

[@francotappa5882]

Did you prime it enough for it to vaporise the alcohol and keep running by itself?

[@mostafahafez6446]

@@francotappa5882 Yes

[@michaelwillconqer2549]

How did u put threads in the coil and can u give measurements

[@mattomite]

I just tried with 1/4-20 size and it was too coarse.... ended up twisting the tubing. If you figure out what size please post it!!!

[@mattomite]

kzbin.info/www/bejne/romafZxul72NpZY Got it..... he used M6 size die

[@zainalarif427]

Please info the jet hole size

[@ВГИЯПСемск]

Экспериментальным путем я пришёл к выводу, что диаметр отверстия 1,2 мм. Вначале я сверлил отверстие 0,8 мм. Не хватало паров спирта и пламя гасло. Затем просверлил отверстие диаметром 1 мм, пламя было неустойчивым и периодически гасло. Когда рассверлил отверстие до 1,2 мм пламя горит стабильно и очень долго. Диаметр трубки у меня 6 мм. Удачи Вам в изготовлении этой горелки.

[@ARCSTREAMS]

instead of holes try using thin slots for the flame jets

[@francotappa5882]

How could one make the slots in the copper tube? What tools and in what direction? Thanks for answering!!

[@ARCSTREAMS]

@@francotappa5882 the slots or slot would be made in direction similar to cross section of the tube like you were going to cut it and not length wise and you can use a thin hand saw blade of dremel cutting wheel ,this is just a suggestive idea as i seen this used for propane burners ,the slots help create a venturi effect blue flame , if you ever seen the show moonshiners they made similar burners using slots instead of drilled holes which were making yellow flames instead of blue jet flames that they got after making slots instead

[@francotappa5882]

@@ARCSTREAMS I Will try your idea when I get a chance!

[@ARCSTREAMS]

@@francotappa5882 you building a stove like in the vid? just curious why would you want to try a different design than what already works? because my idea is just a suggestion and im not sure it will work better or the same or not ,more like something to experiment with if you can do it

[@ImTheReal]

Yeaaaaaah \o/\o/\o/

[@KlusterFux]

Where is the fuel coming from? Did you drill a hole in the copper tube?

[@tetkoba]

kzbin.info/www/bejne/eaCVaYGjZbh-laM

[@KlusterFux]

@@tetkoba you send me a link back to the same site I just complained about!🥴👻

[@tetkoba]

@@KlusterFux sigh, I captioned "blind nut for fuel port". Watch carefully pls.

[@СергейПарфёнов-к9у]

Всё увидел.))

[@joepalermo3836]

How did you thread the tubing without bumping into the opposite leg of the burner ?

[@joepalermo3836]

Paul Burstrom : that’s not how he did it to many variables, any way I went a different route, I decided to seal the tubing to the lid by sweating it on with silver solder and used a tinning flux and used a small hand held butane torch to sweat the connections. That seemed to do the job , I will do a test run on it this weekend and see if it holds up. I made sure to sand the plating on the lid down to bare tin and buffed the tubing clean for a good seal on both pcs .

[@markwheat3700]

I just had to reply after reading the other answers. Copper is soft, start die by hand then use appropriate size socket on die. I'm sure you have already figured this out.

[@joepalermo3836]

Mark Wheat : thanks for your input Mark, but as stated above I decided to solder it to the lid using tinning solder . I sanded the lid clean and the copper tubing applied tinning flux and tinning solder worked out great 👍

[@sarinhighwind]

how many of these have you made now? I mean like hand made stoves in total.

[@tetkoba]

I'm making approx.300 stoves per year.

[@sarinhighwind]

you making multiples and selling them then?

[@tetkoba]

Yes, wholesale to a certain Japanese brand(no oversea shipping)

[@sarinhighwind]

That's awesome, didn't know you did that!

[@ARCSTREAMS]

washers are enough for air tight seal?

[@kke]

I'm thinking there must be air leaks, otherwise it would create a vacuum inside the container.

[@ARCSTREAMS]

@@kke well im guessing the vent holes in the copper tube do that as well but then again that is where the flames shoot out from and then it becomes a sealed unit ,not sure if air needs to go inside the tank for it to work or if the heat is enough to pressurize it and make it work ,but there is always air inside the tank where the fuel is and the heat from the copper creates the pressure to blow the fuel out but there is no venturi system here so idk how it creates those blue flames unless there is some way for air to get inside

[@khalidyousuf7938]

The stove is getting better by the day. Thank you very much. Keep it up.

[@supersilve]

Nice work nice stove. good idea about the thread instead of JB weld.

[@0718kuhn]

Next level ;)

[@andrewmconrad]

Great video! Couple of questions: What diameter copper pipe? Just 1 pin hole at the bottom loop? What kind of cans are you using these days? Thanks!!

[@tetkoba]

The pipe dia. is 6mm and 1mm thickness. Yes single 0.8-0.9mm dia. jet hole at the bottom of loop. Both top and bottom piece uses bottle coffee cans which selling in Japan. I'm not sure the cans are sold in your country. Thanks in your interest.

[@adventureswithfrodo2721]

Didn't really show much.

[@sarinhighwind]

Couldn't you do the fuel burn on top to warm the pipes as well vs using a torch?

[@tetkoba]

Yes.

[@marcoellar5615]

I wish I could make some

[@MaNi-cn7to]

Thax for review! is it possible to design similar with adjustble flame control?

[@tetkoba]

No

[@emrysmcwryn7902]

Very Nice!

[@2manysigns]

Great !

[@azepn2ra663]

Can you make an adjustable remote feed stove w/ tutorial,thanks in advance

[@tetkoba]

No, maybe.

[@azepn2ra663]

Thank you tetkoba san

[@bbjagaa]

Can anyone answer me if 91% alcohol would work, I made one stove but it’s not working, trying to figure out what did I do wrong. I made with glass jar with metal lid. A little larger than the one on this video. I have two possible reasons. Alcohol must be %100, and the second one is the container is too large

[@francotappa5882]

It works with 70% alcohol too. Did you heat/prime it enough?

[@ВГИЯПСемск]

Какого диаметра у Вас отверстие? Я пробовал вначале 0,8 мм. Пламя быстро гасло. Рассверлил это отверстие до 1 мм. Пламя было не стабильным. Когда рассверлил отверстие до диаметра 1,2 мм горелка работает в турбо режиме стабильно и долго. В качестве фитиля я использую асбестовый тонкий шнур в несколько сплетений.

[@bbjagaa]

What’s cc? Gram?

[@MNeel63]

cubic centimeter

[@bbjagaa]

Matt Neel Thanks

[@tiredofbs6835]

www.google.com/search?q=cc+to+ml&oq=cc+to+ml&aqs=chrome..69i57j6j0l4.7655j0j8&sourceid=chrome&ie=UTF-8 You can use the table to do easy conversions to and from different volume measurements.