Cast Iron Smelter 8 minutes to melt iron

From 60 Deg to 2,600 in just 8 minutes . Smelt cast iron in minutes
Baby Godzilla Burner burns any fuel or oil
smelt copper and aluminum in 4 minutes . Other systems can take 50 minutes or even hours
time stamp 6:10 for waste oil temp • Thermal couple TEST pr...
Check out my web site www.nobox7.com/
Check out my store front www.amazon.com...
Support this channel on Patreon www.patreon.co...
Email me [e-mail]
Call me if your interested in this product 011-217-710-9653

[@NOBOX7]

Buy this burner here www.ebay.com/usr/forgeburner

[@BobbyIronsights]

A smelter turns iron ore into iron, via a chemical reaction, you've just got a melting furnace. Pretty cool, but not a smelter. Thank you for the upload though I appreciate the content. EDIT, as a further challenge let's see if it gets hot enough to melt and cast mild steel.

[@NOBOX7]

I see , thanks for the clarification

[@brendencammer8380]

Hey boss I've watched probably every forge burner video ur design is simply genius.

[@NOBOX7]

Guys i made a mistake at 6:44 , its 300 ml per min not hour and 180 Kw

[@betbrokerinversionesdeport6307]

hello, what material is the crucible you are using?

[@covad7686]

Hey, you're using pounds together with milliliters and kilowatts. Why you're not including such measurement units like scrupulum, urna, libra and cubitum? They've been used in real empire - Roman. Don't you think that since the whole world is using C-system (metric units) except for just two third world countries, then it might be better to use official language of science in your calculations and equations?

[@sumduma55]

@@covad7686I'm betting he was thinking that because you divide by ten geniuses were so smart, that you could figure it out. Evidently he was wrong. Or at least I imagine he was wrong. It seems that when math gets a bit more complicated than multiples of ten, you warriors throw a fit.

[@covad7686]

@@sumduma55 Hmm, interesting. So you're trying to say that this world could be a better place if all programming languages and other useful things that help humanity to live a better life have used fractions of some irrational numbers instead of current state of things? Do you know that just 2 countries in the world are still officially using imperial system? It's USA and Nigeria. Do you also know that ANSI, NEMA and all other American institutes use metric system, they convert inches and pounds to mm and kilograms, make calculations and convert back? Do you understand that dividing by 10 is something that you don't have to think about at all? Do you know that you can use your mind for much MUCH more complex calculations and exact equations using rules of the matric system, which is almost impossible to do in imperial system? I believe that you don't even know such rules and you'll need more than a 20 seconds to calculate this (91*43 = ?) using your brain as a single tool for this job. I design, make and sell CNC machines for living, CAD/CAM, several programming languages. I'm here because i'm melting aluminum and brass chips, and want to try and build furnace to melt iron and steel. I'm not making any videos for youtube, because in order to make a nice video that people will like you have to follow the rules. If author wants to attract viewers and subscribers he MUST write and follow a scenario, write his speech, cut/edit video. That's quite a lot of time, but you won't look stupid. If author is willing to share his stupidity with the world - then how can he or his attorneys complain about the laugh of his viewers? My previous post was "thank you" for the video, cause i've watched it all, and at the same time my laugh says "do better next time". As for the warrior part of your post - well you're the one who wants to fight, if you want to continue - go ahead with your comment and we'll have a good laugh I think...

[@sumduma55]

@@covad7686 lol.. bless your little heart. I wasn't saying anything like that. I waa saying that you suck at math and your petulant attitude is no different from a spoiled little child crying because he had to do something he didn't want to do. As for your little math problem, I was able to do it in less than 15 seconds in my head. I probably could have done it quicker if I didn't keep looking at my timer. I agree though, if all you have to do is divide by 10, that would seem like a difficult math problem. However, I disagree that you would be able to otherwise do complex math equations. Algebra for instance is full of fractions. (3x+-1)/4 is a fraction. And as we already saw you suggest, you cannot do fractions. I was about to go on but it's probably not worth it.

[@calculatedrush]

I was curious about waste oil burner during the video and couldn't find any good info on google. But then you ended up discussing it here. You're a psychic

[@joshmnky]

This is very similar to a rocket engine. They cool the chamber with the fuel, and have clogging issues like you mentioned. They usually deal with it by filtering the hell out of the fuel, because cooling the chamber with liquid oxygen is difficult. Heating the air makes much more sense for a foundry though. You're not dealing with liquid oxygen, and filters are expensive. If you haven't before, you might enjoy reading about impinging, coaxial, swirl, and pintle injectors. They might give you some more ideas.

[@NOBOX7]

Great input friend , Glad to have you

[@patrickmihajlovic4112]

Realy realy *IMPESSIVE* Sir !!! I'm an absolut beginner in this field... but.... After searching some hours for the "hottest burner", you are the first and actually only channel achieving this numbers without a vast amount of $$$ and highend equipment ! Additionaly you explained your techniques and ideas very well.... TY++ Thumbs up !

[@rescobar8572]

That is one serious burner you got right there!!

[@kevinmichaelbergman8276]

I am a life time Gold miner Smelter Refiner Gold Clean up Service I like it good stuff.

[@makromikro273]

I did the air drying with 2 inches metal pipe and automatic draing valve by mounting that stuff inside a refrigerator. Work's perfect.

[@jryer1]

Wow, that burner is no joke!

[@__austrianoldboy_9861]

amazing burner, will be one of my next projects, thank you for sharing your knowledge!

[@JustinTopp]

Awesome. I need one of these to cast parts in my machine/blacksmith shop! Great stuff

[@johncorson6599]

Very cool .. nice looking burner assembly too .. it took me about a minute after seeing this to realize it took so long on my furnace to melt iron .. thx

[@killmimes]

Its a furnace not a smelter! Are you breaking down iron ore?

[@Seanfrtd]

you should make a pre-cooler for the air coming out of the compressor with a auto drain separator BEFORE the air goes into the tank. the big pulley already works as a fan.

[@NOBOX7]

Great idea

[@nicksvaik]

To elaborate your comment on steam, the (normally) maximum temperature of steam is 100deg celcius or 212f, after it reaches that it will expand 2700x it's volume and find somewhere to escape. This is my it works so well in turbines but that means water is great at reducing temps

[@NOBOX7]

Well yes and no the 100 deg max temp for steam only applies to a kettle of boiling water my friend , if the steam is exposed to hot metal it will increas in temp. a mono tube boiler can produce 2000 deg steam at 1 psi even under that but you need a litte pressure for flow . The 212 deg steam is just an old science book explanation. For an engineer its detail details details , the 212 deg rule does not apply here . this steam could theoretically reach 300 deg as that is the temp of the pre systems . the outer loop is even hotter .

[@nicksvaik]

@@NOBOX7 Thanks for the details! My explanation comes from what I have been taught about going into burning buildings and applying water, obviously a much less controlled environment, not much steel around.

[@ilmulogamdantehnikpelogama9569]

Halo kawan .saya mau tanya untuk mendorong tekanan udaranya pakai apa ya

[@onlykidstv273]

Wow that was fast and truly amazing. Thanks for sharing this video.

[@cryoine7194]

this is a nice burner but two things 1) do you not include the cost of compressing the air in the cost to melt? 2) that weird surface activity you noticed might be set up from the convection currents cooling the iron down, something similar happens if you use powdered milk in coffee

[@arthurgoss4861]

Good day , would you be able to export one of these burners to South Africa , thank you .

[@NOBOX7]

yes but youtube is ran by a criminal so you will never see this comment

[@colerussell1780]

Would a diesel/waste oil mix have the same outcome?

[@pavn6315]

Nobox7, can you please advise on a solid forge build for one of your torches as shown in this video? Thanks!

[@justindavidson6917]

Me too

[@anythingmetal633]

Hey man I never commented on your stuff. But I'm a big fan. I just started my own little thing on tube. I'm really into doing stuff like you. What I'm like is stuff that is effective, efficient, and the only reason it isn't main stream cause nobody wants the liability becouse if your not to bright you can hurt your self lol I made my version of your weed steam machine I still working out the bugs . It works but it isn't constantly pushing out steam. I think it needs more heat

[@brianbloom1799]

Hi sir, I am just starting out, Do you have a video, on how you made that burner head, I would love to make one ,Thanks for any help Brian

[@klrmoto]

What kind of a nozzle are you using?

[@dingodog5677]

I’m impressed👍 I’ve made diesel burners but haven’t achieved that sort of performances

[@nothinghere1996]

Hi, can i ask a question? I am building a boiler for distillation. i intend to use diesel burners at the bottom. They put out about 80kw each. The still sits on an eclosed skirt of 14mm. Will the burners melt the skirt? The boiler is 1000 liters, 3mm su304 and with a 5mm copper bottom. any precautions i should take with the heat? i will use a fire mix concrete as its stand.

[@waynepearson7058]

What love to know what crucible u used to go to thet temp .wayne from South africa

[@reidwoodward4973]

What if I need to ask you a question about how to make a larger foundry type that gets

[@hassanmoussa3123]

مرحبا عزيزي انا مبتدأ في هذا المجال هل لك ان تعلمني عن الفرن ماهي المواد التي صنعته بها وتتحمل حرارة وشكرا جزيلا

[@NOBOX7]

قريبا سيكون لدي كتاب يشرح التفاصيل .

[@cristianpopescu78]

AWESOME !Great,this is Bessemer's idea,reinvented.Super,very good Video,thanks for sharing & explanation! Never seen this before indeed.

[@NOBOX7]

Thanks for the input friend , i love talking facts with people knowledgeable enough to drop names like that . I checked him out , this guy was awesome

[@einerottoandersen8289]

I still need the full explanation regarding fuel pump flowcontrol or do you use wacuum injection? I have seen many different constructions many of them with bad or none explanation on how it works. I am to build a nev furnace first time for melting bronce, and i am impressed of the performance of your burner. I could bee nice with some dimensions on the burner but I think I have to experiment on that issue. Regards Einer from Denmark.

[@fernandofantasia4222]

Excellent very very interesting your video, I will try to do it, big hug from ARGENTINA

[@binomozeki5942]

hello how do you melt iron?

[@marklelohe3754]

This is the best burner that I have yet seen on You Tube. Since I will be casting Iron cylinder barrels for vintage motor cycles I have been looking for a set up that will melt around 15 lb in a sensible time. Would you be willing to let me know your burner construction details?-------great job and video ----- thank you.

[@NOBOX7]

The diagram is $20 , if i wasn't so busy i would send it for free but i have no time

[@ilmulogamdantehnikpelogama9569]

hello friends, does your system heater not get clogged in the nozzle?

[@goldsilverjunkie]

Hey I got a DIY propane forge with 2 Amazon torches built into it . If I connect vacuum holes into them will cast iron melt faster due to there being more air mixed with the propane???? I’m having a hard time melting it for a pour

[@NOBOX7]

You need to add some compressed air

[@NOBOX7]

Also if you back the burners out of the furnace they will pull in more air . For the most part amazon gear cant perform that task .

[@NOBOX7]

Add a vacuum cleaner type blower

[@goldsilverjunkie]

Yeah, I’m waking up my neighbors this morning through this raging roar of 747 jet airliner ready for takeoff😂😂😂

[@pitovid]

Hi At What Tempreture does hot tolled 2mm sheet smelt

[@NOBOX7]

2800 f

[@georgejackson7501]

have you tried a couple of turns for air intake heat ? I`m doing a similar project, round chamber with a 90 deg. swirl chamber.. was wondering if there is an optimum air temp to target.. your burner is SERIOUS... nice job

[@NOBOX7]

you dont want to exceed 300 deg or build up clogs the burner after just hours of operation . a single turn is all it takes to hit that sweat spot , any hotter and you boil fuel and thats bad for tiny fuel lines as the gases occupy space fuel should be in and th burner can starve out

[@stoneomountain2390]

The more heat the air carries pre combustion the less you spend on fuel, there is a spot where the hot air will corrode the pipe but that is above 800 degrees for stainless.

[@ukmayhemproductions]

dam bro this is insane ... ive made somthing but i cant get over 900c any suggestions for pressures needed etc for this to make it work properly ?

[@BensWorkshop]

Many thanks. Does the square sided burner tube help with mixing?

[@TheStarforce2]

What type of airflow was used? I got lots of desil and kerosene to dilute my oil to make it easier to flow. I don't have the one that loops the air over the burner because I only need to do aluminum. Also what is the hottest fuel? I have a smaller compressor, but I think it can handle my plasma torch and probably this I just hope I don't fry it from the heavy use.

[@NOBOX7]

I sell a non pre heat version

[@prinzeugenvansovoyen732]

what do you think of fuels with higher energy density? like Acetylene or Diesel also would a draft help - putting a exhaust pipe ontio the lid as a chimney that once its hot drags in more air

[@ASoftaaja]

That is pretty impressive considering the simplicity of the burner and it looks very quick and easy to light up. At 6:40 should it be 180kW not 80? I calculated 300ml/min diesel should be about 180kW. Should be noted that the furnace shell insulation plays also a major role, it is not just the burner that makes iron melt. Do you have more details about the furnace you have built? Does it use wool or full refractory insulation? Also I think the silicon carbide crucible also helps to speed up the melt as the thermal conductivity is probably much better than with a conventional clay crucible. I have made a iron melting furnace burning waste oil and diesel. It can melt 1kg of iron in about 25 minutes with about 90kw burner power, but it is tricky to light up and requires additional blower. Compared to mine your burner seems very easy and quick to use. What is the wattage of the air compressor you are using here? I'm interested in the required compressor power level to run these kind of burners.

[@NOBOX7]

Yes you are correct 180 kw is indeed 300 ml min typo again , sorry . good eye

[@NOBOX7]

1.5 hp is the motor on this compressore

[@NOBOX7]

it full refractory , i had limited time to do this so ordering online was not an option

[@RustyInventions-wz6ir]

Very interesting. Nice work sir. Thanks. I want to build a furnace. This is going to help me allot.

[@RyanMartin-wg7gm]

Thank you very much Sr 🎉😊

[@fasteddie8782]

I come from a long line of foundry workers my grandfather work the steel foundries in Vermont and then owned foundry on Lincoln Street in Boston Massachusetts and then my father work for my grandfather and I used to go in at 6 in the morning make cores and fire up the furnace I remembered so well in that roaring sound was awesome we used to do aluminum Foundry it was so cool is right one Burger King just started and I was only about 10 I go into work with him was pretty cool always wanted a little mini Foundry nice job man..whopper was like 50 cents..mass.pike highway took over land were foundry was...eminent domain..changed everything for GRANPA FOR FUCKIN SURE

[@NOBOX7]

thanks brother

[@TheHalloweenmasks]

Do you have drawings available for this?

[@NOBOX7]

yes but youtube hates white people so you will likley no get this response and if you do i will not get your response thats why i leave info in description to find me

[@ericthered9655]

What do the combustion products put into the metal? Have you cast anything with this?

[@Eggomania86]

I bet you could in theory make wootz, which is crucible steel using this furnace. I would like to run a diesel forge. Hot enough to forge weld and make Damascus too.

[@anthonyortiz7924]

wait, @9:30 he says he's afraid of it blowing up in his face. was this just a joke or for real? how would that happen? there's no tank or pressure, it's just a smelter.

[@thuss5162]

At those temperatures sweat dripping in can cause it to turn to steam so fast and water expands something like 600 times volume when it goes to steam. I have emptied a 50 pound batch of molten lead from a few drops hitting the metal! Happens so fast ! I think he has experienced similar issues

[@anthonyortiz7924]

@@thuss5162 Ahhhh I see, thanks for the insight!

[@flyerphil7708]

It’s not smelting. It’s melting.

[@anthonyortiz7924]

@@flyerphil7708 you obviously don’t play Minecraft! :D

[@flyerphil7708]

@@anthonyortiz7924 of course not

[@johnfurr8779]

I hate it when they show you foundry builds, but they never show you the foundry actually melt CI and pour it into moulds to make a functional part ;)

[@ncoutdooradventures6148]

2 questions,,, Was the fuel gravity feed? How would you go about regulating the heat to only use what is needed for other metals?

[@NOBOX7]

youtube never sent me your question , they dobt want us talking about what their up to LOL , yes you can turn it down

[@mikea6272]

Do you sell these? Can you add a waste oil supply line to it?

[@NOBOX7]

Yes to all, my info is in the description

[@robertfontaine3650]

Nice burner.

[@NOBOX7]

Thanks for the feedback

[@anthonyortiz7924]

Hello! How does this compare to the Zeus torch (from your "Universal forge and foundry Zeus torch" video)? Also, I see the Zeus torch on your store but not this pre-heated air version. Thx

[@NOBOX7]

my contact info is in the description . Contact me for details

[@NOBOX7]

Zeus is not as powerful or as hot . meaning this can melt a bigger crucible of metal and get hotter then the Zeus

[@ronphillips379]

Impressive burner. Like.!

[@NOBOX7]

Thanks!

[@btfojeff]

What HP motor is turning your 4cyl compressor? Looks bigger than 5 maybe a 10?

[@danvandertorre6349]

luckygen 1001 has some good videos on melting cast iron with used motor oil with a small amount of kerosene in it and he also uses propane as a preheat before starting the oil but this is a forced-air system using a vacuum motor so it is not the same as your system, I think he melts 20 pounds in 20 minutes not sure to the exact time or amount but it is close enough.

[@ilmulogamdantehnikpelogama9569]

hello friends, what compressor or blower do you use for the air pressure?

[@norskenor2524]

1.8 kW

[@masterdanprice2904]

Do u have the plans for this diy. I would like to build one

[@froggerland]

I think he's trying to sell them. I doubt he'll give up plans.🤣

[@tomharrell1954]

If you had a second burn chamber where the round nozzle is in line with the first nozzle and added air from a blower and more fuel would it increase the temperature or just make more BTU

[@reidwoodward4973]

How can I get in touch with you to discuss how much a heavy duty stainless steel piece will help with a large foundry type operation that would get preheated air from a forge attachment. I have pictures I need to show you what I have. Reid

[@reidwoodward4973]

What can I do to get into contact with you on finishing my forge and foundry? Bullet1955

[@mksboysal]

With this setup that you got you can easily burn used motor oil instead propane.

[@EngAryPrado]

Excellente job! Like, thanks for share us, great hug from Brazil, Ary Prado

[@stevesrt8]

straight up epic. wow

[@NOBOX7]

Thanks homie

[@markkoons7488]

Will this burner also be suitable for lower temperature burns like aluminum or copper? I suspect that a lower temperature burn with this hardware will result in incomplete combustion. Is that true?

[@NOBOX7]

it has a very good turn down ratio , it can melt all metals efficiently

[@DavidHerscher]

Ummmm, uh, freaking SOLD bro. Checked your amazon store and it's unavailable?

[@NOBOX7]

www.ebay.com/sh/mystore

[@richardunderwood3825]

Do you sell the burners?

[@NOBOX7]

yes check description

[@madlankan6735]

Hi brother This is realy useful video.I also have an oil burner that preheating air. But not so efficient like your. and l want melt caat iron.Somebody says that crusible. has no durability when casting cast iron.Can I use a stainless steel crusible to melt cast iron?

[@NOBOX7]

i wouldnt try it , its white hot soft at that temp , use a salamander super

[@ak47bobbarke]

Good job man!

[@NOBOX7]

Thanks!

[@TheEcofarmer]

Incredible video. Thsnk you. Were are you located? Have you ever used Hydrogen Gas? Thank you.

[@rubarb0406]

Hi, Interesting about fuel coating the feed line. Where you had only one loop on the air line, would there be utility in having more loops on the air?

[@johnfurr8779]

more air loops results in overtemperature in the mixing chamber and boiling the oil. Not good

[@NOBOX7]

@@johnfurr8779 you very wize grass hoppa

[@ArchetypalCat]

@@johnfurr8779 you do very specifically mention that while showing the build of the burner. A subtle, interesting phenomenon.

[@johndabate644]

What is the model or name of the burner in this video? Is it for sale on eBay? Thanks, John

[@NOBOX7]

The Godzilla burner with pre heat , info is in description

[@johndabate644]

@@NOBOX7 Thanks again. John

[@h.mirzaei6586]

سلام دوست عزیز واقعا کار فوق‌العاده ای انجام دادین من هم درگیر ساخت کوره هستم اما نمیتوانم آن را تمام کنم مشکلم در ایجاد حرارت نهایی ذوب هست آیا می‌توانید به من کمک کنی تا آنرا بسازم؟؟؟

[@NOBOX7]

Yes but not here , go to description

[@anderslittorin6882]

Furnace. You built a burner for a furnace, not a foundry. A foundry is the place where castings are made. It should normally NOT be on fire at all. Except for inside the furnace.

[@NOBOX7]

Yes technically you are correct but on colloquial level most people say forge for device that gets metal hot and foundry for a device that melts metal . I do not disagree at all .

[@ArchetypalCat]

@@NOBOX7 LOL, same with "smelt" versus "melt" ... most peeps say 'smelt' because it sound more special, more technical (and thus required :) than does the ordinary 'melt' --- I mean, ice cream melts but surely metal needs more. :)) The incorrect usage only bothers us high falutin' metal heads.

[@CATANOVA]

Good info.

[@darrenharrison2205]

Can a person get the plans for this burner setup as I would like to start doing some metal casting

[@NOBOX7]

Soon a $50 book will be released. This burner cost $175

[@googacct]

Looking forward to the book coming out.

[@darrenharrison2205]

Thank you sir I will have to watch for it

[@klucky2908]

@@NOBOX7 Is the book already released? Is there an eBook version? Otherwise the shipping will take so long...

[@exploringnorthernontario9627]

Very interesting! I am trying to melt Nickel and I don't know if you can make 1453C with propane? I am thinking I will need to Oxy- acetylene.

[@NOBOX7]

This burner can do 1600 C in a well insulated foundry

[@exploringnorthernontario9627]

@@NOBOX7 That is amazing! It takes me 30 minutes to melt my charges when I do my fire assays with propane. Too expensive! How to you pressurize your diesel to the burner?

[@ArchetypalCat]

@@exploringnorthernontario9627 3 years later .. a reply from outta nowhere ... the fuel doesn't need to be pressurized in these types of burners. Typically, they are gravity feed and use the venturi effect (*) just like the carburetor in an internal combustion engine. en.wikipedia.org/wiki/Venturi_effect

[@bobbyrohr7086]

Love the concept! I have a medium-sized squirrel cage that I put a treadmill motor and speed controller on... This thing can MOVE some f'n air. You think I'd be able to use it along with compressed air to reduce the psi needed so a smaller compressor can keep up? Could I possibly use a 100# propane tank as a fuel reservoir, then pressurize it up to ~70-100psi, directly injecting diesel at that pressure?

[@johnlintorn6768]

Are you injecting the diesel under pressure or using the air to inject it?

[@NOBOX7]

just vacuum induced by air

[@ArchetypalCat]

en.wikipedia.org/wiki/Venturi_effect

[@johnmartin9318]

How about melting iron

[@dogodogo5891]

what's BTU of your furnace?

[@NOBOX7]

> 500,000

[@jaygod6140]

Nicely done! 👏 what is your air usage psi/cfm?

[@NOBOX7]

4 cfm "not SCFM" @ 75 to 100 psi

[@MrTravis789]

Is it true whoever smelt it dealt it?😅

[@NOBOX7]

NO, we know it was you Travis

[@jonasneumann5915]

300ml /min = 18 Liter / h 18 Liter = 4,7551 Gallon 2,79$ / Gallon x 4,7551 Gallon / h = 13,27$ per hour. I dont know if you miscalculated there or if I am missing something but the math doesnt add up for me.

[@NOBOX7]

yeah bro 18 liters is not 4,7551 gallons

[@jonasneumann5915]

@@NOBOX7 Just dicovered, that there are canadian gallons, us gallon for fuel (which I used), US Corn Gallons and metric gallons. Which ones did you use?

[@ArchetypalCat]

@@NOBOX7 This is funny - and also the reason one of the Mars-bound spacecraft went lost in space. Notice his use of the "," (comma) ? Same thing with the engineers in the US and Europe - one team thought the designs were in US measure, the other, European team, Metric. So when it came time to fire the navigation thrusters, one of the computer screens lit up with "Danger WIll Robinson, Danger!" ... In many Euro countries, like Germany for instance, they use the comma where we (US and English speaking areas generally) use a period and vice versa. So Euro 4,7551 gallons is US 4.7551 = same amount, different syntax. Nothing more, nothing less (unless it happens to be your 3,500 Million spacecraft ...er 3 and a half million or 3 and a half billion?) Ditto for decimals. 45.324 degrees F is 45,324 degrees F which is, obviously of course, 7.400 C or 7,400 C. Depending on your "accent," you either freeze to death or vaporize rapidly. ... I see no problem there. So he's not wrong - and neither are you. 18 Liters IS 4,7551 gallons. Or, if you prefer - and it really, technically, is correct to use the same syntax as the units, 18 L = 4.7551 gallons. A translation is like a strenuous argument between two people who are both right. Cheers, Ciao, Hasta, and Later, - H (A former technical and scientific translator.)

[@ridwanepribadeeh1997]

ALLAAHU AKBAR. KARYA ANDA SANGAT ISTIMEWA. SALAM DARI MUSLIM JAKARTA INDONESIA.

[@tixsonagyapas543]

Can I buy ur gas furnace sir and how much

[@NOBOX7]

yes $300 fore the burner included

[@snapo1750]

You can create Diesel from waste oil... just mix 2/3 Wasteoil with 1/3 Kerosin.... Enjoy ULTRA cheap diesel :-)

[@parodreel1635]

Do you sell these? How do I buy one

[@NOBOX7]

Yes i sell them threw my website . Contact me threw the info in the description and ill send you an invoice

[@impactodelsurenterprise2440]

When you say superheated air do you mean steam?

[@richardallison8745]

I am a retired blast furnace supervisor in a steel mill and we used to SMELT over 7000 tons of day of liquid iron. Your furnace is not a smelter, it is a melting furnace that operates in an oxygen atmosphere instead of a reducing atmosphere. I assume you are using a clay/graphite crucible. It seems to me that heating from ambient temps to melting temps at 2750 deg F would crack the crucible with thermal shock unless you are using some super technology that came out after I retired.

[@NOBOX7]

I do it every time just fire clay crucible . Yes you are correct about the smelter but we did smelt anode mud in it . Maybe smelting isnt the word but we had a powder ore and we melted it and got a tiny dab of metal

[@laserfalcon]

Now thats a burner

[@radukrmn1556]

Can you preheat the air in the top exhaust? (not let the heat escape anywhere). If you were to use a gaseous fuel would it work preheating the fuel as well?

[@stacylangford8015]

Man, what I could do with Cast iron !!

[@miloudlemlem1520]

it can be more quick and too efficient if combustion air is heated !

[@ric101657]

Correct, preheat air and fuel ⛽⛽⛽!!!!!!.

[@mathankumar6473]

Hey man, I tried to build something similar after watched your videos but im having an issue, the air pushes the oil backward and send back to the container i keep the oil and the oil starts bubble inside the container, it doesn’t spray oil at all, its was just pushing the oul backward, can you help me why this’ll happens? Will really appreciate your words

[@freddycarraway]

I'm not sure but I believe if you extend the fuel line to just past the air inlet it should resolve the problem

[@shanestevens622]

The only way air can get back through your oil supply line is if the air pressure is greater than the weight of oil in the line. Either your air input is somehow blowing into the oil supply line or the chamber where the oil and air mix is realizing a pressure increase to the point air is being forced back up the oil inlet line.

[@DS-mm6fh]

Or ur fuel is boiling inside the line and creating pressure where u would want ur vacuum that's assuming it was doing this after coming to temperature, if it was doing it before u even got it lit then obviously u don't have ur air and fuel ports spaces or designed properly therefore ur not creating the Venturi effect needed to siphon ur fuel and r actually doing the opposite

[@bobweiram6321]

The preheating technique was discovered by African foundry men to make steel.

[@ArchetypalCat]

Hi - great video of a great construction. But the cost results are actually a bit more, but not really enough to warrant this long tome. Why? Because when I get confused, I automatically grab pencil, paper, and my trusty calculator ... At about 6:40 in, the calculations overlaid on the screen are either miscalculated, or the flow meter was read wrong, or both :// [I scanned the comments and was surprised someone noticed the KW issue, but only one other person caught the rest - I guess that proves not so much that you or a helper made a mistake, but rather that I'm being too picky :P] So 300 ml doesn't come close to 3.9 gallons - not even a quart. Maybe some other weird typos that aren't dawning on me at this moment [--- long day, fighting with other numbers ... money numbers - UGH - which are far more stressful and much less fun than working here with our friendly foundry numbers.] As you well know, the gauge has two scales: US Standard on the left, Metric on the right. At that moment (6:40), it does read almost spot on 0.3 liters per minute (LPM), which, of course, is 300 ml (milliliters) / min. Then look at the left scale - it reads just a tick over half way between *0.05* gallons / min and 0.1 gallons / min - or approximately 0.0750 gallons per minute. (GPM on the scale.) From basic conversion calculation, 100 ml (or 0.1 Liters) is about 0.0264 gallons. Three times as much makes *300 ml = 0.0793 gallons.* [A far cry from 3.9 gallons.] ... all the previous as Per Minute flow, of course. Further converting ml / min to liters per min, we get 300 ml / min = 0.3 Liters / min (LPM as on the scale.) In gallons per *hour*, we get 300 ml/m ~= 4.76 gallons per hour. [ I gave up trying to figure out how 8.37 hours, as on screen, was determined :| ] Now if we compare that basic calculation result with what we can actually read on the meter, we have 0.0793 gallons/min and 0.0750 gallons/min, respectively. Very close - only 0.0043 gallons difference (or only a scootch over 28 ml) - not too shabby. At the time you showed us your wonderful device, your fuel cost was $2.79 / gallon (*). So that would work out to 2.79 x 4.76 = $13.14 per hour (not "8.37"), or about 22 cents per min. Thus, from cold start to warm up time, you need 8 mins. Then add the melt time of the 8 mins. Total burn time 16 mins at $0.22 per, that's a whopping $3.68 a melt. Dang it! --- gonna have to bust open the piggy bank. I don't think you can find a flex-fuel unit that does that well *anywhere* in the DIY community. Numbers can be wrong, but they sure don't lie... Great Job, Bro! (*) as of early Oct 2024, the US average price for diesel, kerosene and #2 fuel oil, are $4.46, $4.37, and $3.46 per gallon respectively - just a tad under twice as much as 4.5ih years ago ... certainly nothing to whine about.

[@NOBOX7]

I misspoke its 300 ML per minute not an hour this is 180 Kw , and your wrong about the 16 minutes , maybe you didnt watch the video but its 8 minutes from cold start not 16 minutes

[@NOBOX7]

$8.37 per hour is the cost to run per hour . I used an online converter for the fuel and yes 3.9 gal was off 4.7 was correct

[@NOBOX7]

Yes mistake were made indeed , good eye my friend . In this case i forgot to proof the math . I made the mistake of using the wrong gallon per hour . It was a good ball park jab at it LOL . the per hour figure was the dollar amount per hour expected .

[@ArchetypalCat]

@@NOBOX7 Cool - I stand corrected. That's twice the goodness. I did watch all the way through and then jumped around to different places. Right, I must have conflated the warm up time and the melt time. Sub ten minutes from the get go is downright astonishing. Just watched your hydrogen burner vid... it will be super interesting to see if your old melter c an hit 3K F - man, oh, man how many of us have wanted to leisurely melt and pour titanium :))) RE this particular unit - have you found any particular fuel to be the all around best, you know the trade off between price, ease of sourcing, etc.? thanks again - and especially for the prompt and thoughtful replies ... you have a new fan here ! - - H in Florida (and PS pls say some power prayers for all of us - this one's gonna be real rough.)