Kaowool Furnace Build

[@dootdootdoot1593]

I found your channel when I was in high school (more than 4 years ago) and I still like to watch your videos every now and again. You’re part of why I stuck with STEM and why I’m majoring in biochemistry. Your videos are always so interesting to watch and I hope you’re doing well!

[@robertlombardo8437]

I'm about to build one of these out of a 5 gallon steel bucket that I found out in the desert. The thing was a piece of rusty junk when I found it. Now, I'm looking upon it with freakish paternal pride as I wait for my kaowool and refractory cement to arrive. This is my first home foundry.

[@kevinhaid6211]

Where’d you go D: I ran across this channel about a year 1/2 ago..as someone else said, I’ve come back many times to re-watch certain things. Hope you’re doing well, you’re easily one of the best on YT in regards to breaking things down into laymans terms, which for those of us with only a minor background in chemistry, makes a world of difference and helps one understand things we probably wouldn’t have caught onto otherwise. Hope you’re doing well, come back!

[@mrhomescientist]

Thank you so much! I really appreciate the comment and compliments. I've had a rough couple years, and haven't had the time or energy to keep up the channel. Things are much better now, thankfully, and it would be fun to get back into it. Your support really means a lot. Thank you.

[@validpostage]

10:00 "you want to heat it slowly and gently to start with" over the eruption of flames was pretty funny i gotta admit

[@Bargle5]

Very helpful video. I'll be building a similar furnace out of my old hot water heater tank this spring.

[@alexandertaylor2951]

Glad to see a video that I can just chill and watch from someone who knows folks are trying to break the monotony of this quarantine

[@sparrafien]

Also on rhe edge of building my first furnace, saw a cool idea of a "throttle" like peddal that you step on, which the pushes a thick rod upwards, that is connected to your lid, and it just pivot oit of the way, which i think would work great with yoir design, and keep your lid from breaking, Anyway, thanks for the vid, i learn something new with each vid i discover, thanks👍🏻👍🏻

[@Kelvin555s]

Thanks for the book reference. Just downloaded it.

[@Peter-fo7md]

He’s back!

[@mrhomescientist]

First!

[@aannoonniimmss]

Can't wait for the next furnace size comparison video ☺

[@mrhomescientist]

At this rate, the next one with be one of those old metal garbage cans!

[@aannoonniimmss]

@@mrhomescientist just found your chanel so binge watching all videos. Awesome content

[@mrhomescientist]

@@aannoonniimmss That's great! Thanks so much for your support, it really means a lot. The further back you go, the worse the video quality becomes lol

[@ElementalMaker]

Awesome build! You wont regret using that Satanite, its good stuff!

[@Hirohito21]

Wooow ! This video is very impressive

[@donvito204]

Nice forge I just built one out of an old propane tank, I'm just waiting on my burner and ceramic insulation to be delivered.

[@pyrofriends2323]

Well done!

[@joer01781]

I am curious, that book you recommend says not to let the hotface soak into the wool insulator, because doing so will lower its insulative value, it even suggests using plastic wrap as the ideal barrier to separate the two layers, but you seem to say that you want it to soak in, am I misunderstanding what the book is saying?

[@randomergy683]

Oh wow you're still making videos (: I totally forgot about this channel. I remember watching your video about isolating boron using a thermite reaction. That had to have been nearly 10 years ago huh? Keep it up!! I've always liked your content.

[@mrhomescientist]

Thank you very much! Crazy how time flies. I definitely don't plan on stopping any time soon, I just take a long time between posts!

[@randomergy683]

@@mrhomescientist I totally understand. I'd like to make videos more often myself but life has a way of keeping you busy. Glad you're still doing well and are keeping your channel alive!

[@drmarine1771]

Great effort .

[@scottgreg2967]

Thanks for posting. I think you have some of the best chemistry videos online, do you think you'll post any more? I hope so!

[@mrhomescientist]

Thank you so much! Things have been crazy with COVID, but I definitely want to keep posting. I have a couple ideas ready to go!

[@Smidge204]

11:09 "Oh shit" is usually not something you want to hear from a chemist... :) Nice furnace though! Really came out nice. Is the exterior black some kind of enamel paint/rustproofing or just the color the metal has taken on?

[@mrhomescientist]

That's the high temperature spray paint I used, to protect the metal from rusting.

[@faxezu]

I think the weed burner is not only for weeds. The main application I know it for (here in Germany) is by roofers for heating roofing felt in order to get the bitumen to soften and stick.

[@mrhomescientist]

Cool! Thanks for the comment!

[@michaelpemantel1970]

Do you have a video,that shows how you made the burner?

[@ShopperPlug]

Can this be used as a glass kiln? Need for Annealing glass.

[@pezesu]

How expensive was the custom welded shell?

[@mrhomescientist]

Somewhere around $300 I think. Far cheaper than learning how to weld and buying my own machine, although I would like to do that one of these days.

[@Richard.Andersson]

The temperature of the molten aluminium seems to be way too high for casting? Just based on the glowing orange/white hot color. Did you measure the temperature? It should be max ca 750 degC to prevent entrapped gases and excessive shrinkage.

[@mrhomescientist]

The camera makes it look brighter than it really was, but you're right. It heated up way faster than I expected! I'll adjust now that I know how quick it goes.

[@whynotdean8966]

Any estimate on the final cost? Looks like a damn fine furnace you got :D

[@mrhomescientist]

Thanks! It was about $390 total. Thanks for always watching and commenting, by the way. I recognized your logo; you've been a subscriber for a long time!

[@whynotdean8966]

@@mrhomescientist Of course, that's a good price too! Oh boy, I think it's been around 8 years, judging by your uploads. Pretty messed up it's already been that long. Your videos are always interesting and well produced, so unless you plan on deleting your channel, I'll probably stick around :D

[@nova5303]

@@mrhomescientist does that include the weed burner?

[@mrhomescientist]

@@nova5303 No, it wasn't really part of the furnace so I didn't include it. It was only around $25 from Harbor Freight though. Thing is scary lol

[@KowboyUSA]

No contentment as awesome as the contentment that comes from advancements self-sufficiency.

[@piranha031091]

Nice! Are you going to do some metal alloys now?

[@mrhomescientist]

I did a few with the old furnace, but now I can ramp up to full production!! :)

[@revy_moto]

Haha that is unreal!

[@parkeranderson3161]

How big is you furnace

[@giokiller4783]

What happened to him? Why isn't he posting?

[@Advocate_sandip_singh]

If want to buy copper alluminium steel silver and bronze bars how to contact you

[@rickjwilliams]

(OFF TOPIC) Have you ever done a video on making Potassium Persulfate? By adding Ammonium Persulfate with 98% Potassium Chloride (NOT, NO SALT, TO MANY IMPURITIES) I have done this but, the by product of Ammonium Chloride is the problem. Appreciate response!

[@mrhomescientist]

Sorry, never tried it. Maybe look at another compound that's easier to separate via solubility differences?

[@rickjwilliams]

@@mrhomescientist Well, I used this video, But the problem is the byproduct of Ammonium Chloride. The persulfate works. Whoever, when you mix it with another compound such as Mg or Al you get a very strong ammonia smell. A friend of mine suggested recrystallization. But I'm not sure to use heat or not. Nonetheless I know I will loose yield in the process. kzbin.info/www/bejne/jJXFlJt9n7mnia8&ab_channel=SuperPyroBoys I asked the original maker of the video to explain or show a more completed process, but never heard from him.

[@neonvioletstar]

link to the book: forums.thehomefoundry.org/index.php?threads/hobbyists-guide-to-metal-casting.22/

[@damayanthibalasooriya6796]

Like cars the new trend is electric. You could have made colossal electric one for much less money and operating cost plus better for the environment even electricity made from coal. (FYI ; I did the math)

[@mrhomescientist]

I'd be interested to see your calculations!

[@damayanthibalasooriya6796]

@@mrhomescientist even a gas top cooker is rated 60% to 80% efficient on heat transfer as much of heat is loss with exhausted air. As the end thempreature is gets higher more and more heat is lost so about if efficiency drops below 40% it is logical to even generate the electricity using a gas turbine (efficient 45%) and run the furnace using that.

[@MSteamCSM]

What is this? A middle age? We have electricity nowadays, you know...