Backyard scientist: I'm scared of commitment. Inner voice: oh wait, I'm married

The coolest Florida man is back

I've built loads of these over the years and you were really close a few times, but move on from one design to a different one far too quickly. The slatted type will do it, but the gaps need to be tiny (2mm or less) if you're making it that high. The top ring also needs to have a smaller hole to concentrate the exhaust because all the versions you made had far too low backpressure to sustain a tornado effectively. The simplest way to make one is to cut the drum into 4 parts and overlap them in a spiral, and then cap it with a piece that has a hole 1/2 the diameter. If you go up to 8 pieces it can give a tighter tornado effect, but the tolerances are much tighter and the gaps need to be much smaller.

"I'm jealous of California because they're *lit*!" "I'm scared of commitment." "Epic welding montage!" Dude you're a meme lord lmao

I've thought about this project a lot also. It's a tough one to figure out. I've also played with making a desktop fire tornado that uses a candle. Tougher than it sounds.

6:54 Backyard Scientist: challenges everybody to make their own fire tornadoes California: no! God please NO!

“Number two, they’re 400 bucks for a fire pit. Four hundred dollars for a fire pit. that’s pretty ridiculous, which is why I decided to buy 400 dollars of steel to try to make my own.” this is why I love his channel.

"California is lit" hits hard for me. my house was burned down in the creek fire and we had to find another place to live. keep in mind that I'd been living in that house my entire life. #MountainStrong

Years ago without that plasma cutter, that project would've taken forever. Great job!

awesome florida man scientist back at it again

Thumbnail: he's a Firebender 🔥

Mark Rober and Science Bob used a ton of fans for making a really cool fire tornado.

3020: DIY fire pit black hole!

This man is the definition of chaotic neutral Edit: Chaotic Good

“Everything changed when the fire nation attacked”

If it's any consolation, fire whirls are incredibly rare and typically last only a few seconds. The fact that you were able to create one at all was impressive.

"California is lit" Australia: I felt that

Alternate title: Florida man makes giant vortex of fire from scraps of metal

Does anyone else get nervous when Kevin starts playing with fire? I keep thinking today's the day he catches himself on fire.

I love this channel! Im glad you guys are back!

How many times did he say "fire tornado"? Can someone count?

Me: goes to park with blowtorch Uk: nah everythings wet and is always wet

"Eh, I didn't need that arm hair anyways"

With some adjustments, I think the third one you made could have worked. 1) The angle of the fins at the top weren't angled enough. If you compare the angle of those to the angle of the 2nd one you made, it was much less of an angle. 2) You should raise the floor inside it up a little bit so that it's not quite so deep and and put holes in the bottom to allow fresh oxygen in to feed the fire at the bottom. That will get it really hot. 3) put enough wood in and let it burn long enough to really heat up the walls of the stove so that the fresh oxygen coming in at the top fins will be super heated. I think that would do it. I'd like to see you attempt round 2 of this with some of these suggestions, or other suggestions that you have received.

Him says he has to put 64 pins on it My brain: a stack of pins

3:31 drops blowtorch right next to a gallon of propane

i give you prop on the " just be a man, grab the hot metal and move it, WITH YOUR BARE HANDS!" 1:30

I can think of one additional part to create natural tall ones kind of... Ur right about the fan and how in nature it's usually as simple as a tornado meets a fire and what else would ya get. I think u should combine all of your set ups. The basic outer shell being the omnidirectional slat rig... The inner shell being the basic half wall set up the ring slats to connect the two shells. Then my additional part a tall propeller with a free axil facing up high above the fire. The idea isn't to add any motors just fuel. Pack it round the stalk of the propeller and then ignite it. Once the inner shell heats up the cold air will come in raising the velocity of the propeller and it should make a firenado. Cause the leaves were moving the right direction

California is lit! Yea man we have the BEST gender reveal party’s! You should come and join us sometime.

thanks for the shoutout! (im the person on discord)

can we talk about the hard work he did?

“I told you” - that sounded confident

I built a 'Vortex Incinerator' several years ago. It was like a vertical jet engine with a chimney. The base was a 55 gallon drum burner with a shielded axle in the center, it had a grate in the bottom where fresh air entered. Under the grate was a many vaned fan attached to the axle to spin away the ash if it didn't blow up and out. Up above, the axle had large helix vanes inside a chimney to provide motive force. There was a space between the burner and the chimney to load wood and see fire and the lower part of the chimney had a funnel shroud to concentrate the fire up the chimney. It was all made of scrap metal. The bearings were pins in cup and a large tripod held up the top of the chimney. It worked spectacularly once, the burner drum got red hot and glowed in spiral waves and the axle spun nicely, then the axle got red hot at the top and bent. And that was that. Too many moving parts of junk to last. Then it was art.

If he accidentally caught the ground on fire “Florida man sets fire to local neighborhood”

You are awesome. Keep doing what you are doing!

1:52 I love the design of that shirt so much omg

Makes my day whenever BackyardScientist uploads

Life before quarantine: Oh a backyard scientist video Life in quarantine: BaCk YaRd scientists video👀

I really like the design and the fire tornado for the vented (2nd) pit. I’d like to have a fire pit like that one day but shorter and wider

While I've wanted exactly one of these for years, I've only KZfaq researched the topic if fire vortexes and burners. A strong updraft from intense heat is one of the prime forces between tornados. Simply rotating air may be insufficient. After the hot air and fire raises, it can easily hit a ceiling of cold air and smother the lift and rotation needed. If the air above the top of the fire chamber can be induced to turn, that could help, but having strong lift from intense heat is very important. Maybe if a vacuum or fan could be mounted a few feet higher than the flame, that could help.

Backyard scientist- I'm scared of commitment Girlfriend-looks at hand no sht

5:40 - then why don't you add a fresh-air intake at the bottom of the fire pit, to make sure a lot of oxygen gets in at the base of the flames?

Dude this is one of the most hilarious anybody could do that for cheaper ideas I have seen in a long time. I’m sure any extra metal will be used resourcefully

4:49 "and then beat this thing into submission"🤣 lol

I live in Cali and everyday seems like “get lung caner in two days” simulator

Is it just me that absolutely loves all his T-shirt in his videos

I didnt even know fire tornadoes existed until recently, they and other fire related events are my favorite natural occurrences.

Woah, I haven't watched this dude since I was like 10, glad to be back Florida man.

What a pleasant surprise in my sub box mid day. That intro was great as always.

Backyard sciencetist: posts Everyone: RUSHES TO COMMENTS I make vidz

Dude you are living out my fantasy!! I want to make a fire pit/tornado to maybe 1) have the tornado tend to direct the smoke straight up and away 2) be dope to look at 3) maybe achieve really good combustion. Then, I am looking for a 'Tensile tarp structure' that I can A) raise, B) lower for when not in use, and C) close off more if its windy. Smoke would exit a hole in the center, which would also be the highest point. Back to the hearth: what if you had a series of steel pipes in a spiral that would feed air into a large steel bowl that contains the burning wood. Cold air, which is heavier, begins orbiting the fire and gases, which stay in the center because they are lighter.... producing a swirl. My summer project!!!

Ohhh, you are going to have to re visit this one! I feel like you are on the verge of figuring it out. I believe in you man!

You need a narrower body and a choked neck. It's about increasing ambient temp to drive of wood gas for a cleaner burn. The impeller neck was GREAT! I've actually made a fire tornado stove out of an old thermos. Lots of 3/8" air holes at the base. I drilled and bent few smaller 3/16" angled holes. They were in the old threaded neck. They created a great vortex and afterburner effect. I could heat my whole shop off of it and some large soup cans as a chimney and radiator. Surprisingly simple and effective. When I hooked up an old CPAP as forced air it was almost scary in my home shop!! With your shop you could knock that out of the park!

Kinda looked like you was building a turbine engine with all those fins! Another great video! Also, I want to thank you, I just finished building my own fire fountain! Absolutely awesome! It really surprises people that come by and see it.

This video was really well edited in my opinion

You are the nerdiest looking metal worker I've seen and that is awesome! When I contracted in Afghanistan and working out all the time I got pretty big and nobody believed that I was actually working on my aerospace engineering degree. Muscle heads can't be smart. lol I love people that shatter stereotypes. Great video!

Seller: will you like to buy a fire pit for $400? Backyard scientist: thats too expensive Seller: will you like to buy steel for $400? Backyard scientist: Take my money

The low production value makes this channel extremely watchable (I know that sounded sarcastic, it's not). Stuff like this is what makes me really like the internet. That and Bee Movie memes.

I'm a month late but I have a take on this. TLDR, make it hot and dry above your fire pit. I am not an expert but an enthusiast, the following is a condensation of remembered scientific fact from a novice. It might help though. The physics of fire tornadoes are not dissimilar from those of dust devils, and those are not too awfully dissimilar from tornadoes (though certainly not the same). The energy of all of these phenomenon are derived from temperature differences at different altitudes. For tornadoes, three masses of are involved. Cold moist air from the North Pacific colliding with warm moist air from the Gulf of Mexico. The third air mass, warm and dry from the Southwest deserts, acts as a lid on the warm moist air from the Gulf. When the energy from the sun begins to wane in the afternoon the lid breaks down without heat from the sun, allowing the warm moist air from the south to rise rapidly. As it rises the moisture in the air cools and condenses into water droplets forming clouds. Condensation creates a warming effect in the air around it (also using moisture from pacific maritime polar air) thus fueling the updraft and more cloud creation at higher altitudes. This situation will feed itself as long as moisture and heat in the lower air mass remain, and are not canceled out by up and down drafts colliding. This brings us to the last ingredient. Wind shear. A wind blowing across the updraft will allow the updraft to continue while the inevitable precipitation from the storm is allowed to fall in a different place. The other effect wind shear has is to induce rotation. This sheer has the effect of creating rotation and can move that rotation from a horizontal orientation to a vertical one. The energy in a tornado comes from the energy from the entire storm cell being reduced to a relatively small footprint. As the rotation contracts, conservation of angular momentum win intensify the effect of the energy, converting lower velocity winds at the outer bands of the cell to extremely high velocity winds towards the center of a tornado. This is all to make the point that higher temperatures and lower humidity in the ambient air above which dust devils and fire tornadoes form may have a great effect on the overall size, strength and organization of these smaller phenomenon (think of the lid of warm dry air on the warm moist air that fuels a tornado). This was cited as one reason the fire whirl in Redding, California in the 2018 Carr fire was so big. The area was in the middle of a drought and had been experiencing triple digit temperatures. If you can figure out a way to create a very hot and dry column of air above the fire pit, you could conceivably create a taller and more organized fire tornado pit.

So I was wondering if you had given any idea to trying to make those directional airflow blades be able to spin powered by the upwards draft of the fire? This addition of essentially turning it into a mini turbine might have the desired effect you are looking for.

The backyard sure gets more scientific with a fire in tornado form, awesome stuff.

"I still challenge anybody to try to make their own fire tornado..." *no no no please no don't*

*WHEN I SAW THE THUMNAIL I THOUGHT HE WAS FIREBENDING*

Nice to know this principle of fire building!

2:08 hope your girlfriend doesn't watch this video!

"here in Florida, if I try to start a fire, I cant!" *starts fire*

You know what's cool fire tornadoes -backyard scientists

You’re giving Colin Furze a run for his steel fabrication. Interesting video.

Early mans where you at

Very interesting - thinking about all of the work that you had to do for this very short 7 minute video. Yikes. Thanks for sharing.

Backyard scientist: you can't make a constant fire tornado. Mark Rober: hold my beer

I have seen some of the comments and reply’s and I would really like to see a backyard scientist community website or something as such it would spark some ideas or maybe help for peoples upcoming projects!

Add 3' high temp glass offset half cylinders on top of the solo stove - will look amazing

Maybe if the inflow was channeled in a few longish tubes to store up some directional momentum instead of swirling past a sharp orifice/slit into the chamber that could be creating unwanted eddy currents and drag losses. Also some more height proportional to width on the chamber might help to increase draw and feedback.

0:44 buying stuff to diy intead of paying a factory to make it for you. Awesome! LOL seriously love the attitude

I was craving a good dose of Backyard Scientist.

I've been watching since 2015 the fire sword. I love this channel❤

That’s not scared of commitment, that is forward thinking.

I like how other channels are like "don't try this at home" and his vids are always like "try and make a fire tornado bigger than mine, and if you do I wanna see!"

"Ok, I'm seeing some circular rotation". Yes, I am a tautology pedant.

In the powered tornados they tilt the blowers up a bit. Adding a vertical component may help yours remain stable as it grows taller.

I imagine anyone who successfully achieves a fire tornado in their backyard will probably need a new house!

fire tornado to kevin =fun me=global warming

There's a type of fire called a blue whirl. Apparently it's a top-like vortex of fire that burns perfectly clean. It looks amazing and is apparently really difficult to make, but it would be really cool to see you give it a try and maybe get some cool video of it!

The Backyard Scientist today :- I didn't need those arm hairs anyway. The Backyard Scientist next video :- I didn't need those arms anyway.

heyyy i just started watching a few hours ago and i am already addicted!!!!

"I couldn't start a fire if I tried!" *burns down entire forest*

Hey guys backyard scientists here! And today I will try to power my WiFi with a single lemon and we are going to see if we can upload this video with it.

Oof that opening joke is gonna have some burn to it for anyone currently homeless or burying a cooked relative in ol' Cali

post more pleasee! so funnnnn!!!

Outstanding random intro vid 👏👏👏 Subscribed 👍 This bro in the vid's a bona fide Dark Souls pyromancer! Forgotten sciences 🌞🌻🌀⚡🔥

The perfect collaboration of the minds would be Backyard Scientist, Smarter Every Day, and Stuff Made Here. Sorry William Osman would have been included but he's scared of fire.

The name of the game is trial and error. I experience that a lot when working at the research lab. Great video!

EPIC short WELDING MONTAGE !!

I think you had the right idea at 3:19 (re: some good tornado action but the fuel source being too deep in the chamber so the propane burned off before it got high enough). Moving the flame source higher cuts down on the amount of air draw, however, so you lose rotation. Rather than moving the propane ring up, why not keep the one at the bottom to maintain the rotation, then just add a second (or third or fourth) ring higher in the chamber to "refuel" the flames on their way out?

Yes this is exactly what we need right now in california

I owned a commercially made Burning Log Spin-a-Fire wood fired heater here in Australia specifically because it spun the flames

You should have patented this first. Now all those 400 dollar fire pits are going to steal your design lol. I would hahaha. Freakin awesome and brilliant idea. I love this channel

We build huge smokestacks from stones in a quarry, they shot fire at least a meter with only sticks laying around. The stack was at least 1.5m high and firepit in the bottom. You can also get same effect with metal cones over fires.

I love how many times the air horn sound effect was used in this video 😂