I've seen a few people on here ask question as to what exactly this is, how it works, and some of those questions were quite recent, so I'll try and explain this in easy terms. What you've got in there is a fire that's been starved of oxygen. They closed off the doors and windows, and the fire soon uses up whatever oxygen was in the air in there. For flames/combustion to occur you need fuel (the wood they have in there), energy (the heat of the fire) and oxygen. No oxygen means no flames - BUT the massive heat and smoke remain, and the smoke is building up. The interior is now at higher pressure than the outside atmosphere due to the heat and smoke build up, which you can see by that smoke venting through whatever cracks there are. You open a door and, as you can see in the video, all that heated gas pours out because there's a high pressure inside, remember? But at some point after you've opened that door, the pressure equalises. Oxygen from the outside can now enter, which is what he refers to when he says "now there's an opening". Once enough oxygen hits that atmosphere all those heated gasses inside can now combust - with the spectacular result you see here. What the instructor is teaching here is looking for and recognising the right "signals" in the smoke in order to realise this room they've simulated here is posing a backdraft risk. Pulsating, dirty white-ish smoke coming out of any small crack is a cardinal sign, often likened to cauliflower or jellyfish in appearance. I hope this helps!
@Luchini7312 жыл бұрын
Thanks! This is probably the best explanation of this I've seen!
@coolplays95612 жыл бұрын
nothing like getting blown off your feet and possibly severely injured because of it
@lorddrayvon1426 Жыл бұрын
Honestly, I'd argue that a backdraft is more dangerous to firefighters than flashovers albeit this is coming from a non-firefighter. Flashovers are extremely easy to spot and prepare for if you know the signs but backdrafts are borderline completely unpredictable. Also unlike a flashover, there is no way of avoiding a backdraft. A flashover could be avoided if you instantly hit the deck but a backdraft is gonna hit you no matter what.
@2adamast4 ай бұрын
I would think with a flashover you have immediate ignition the moment air is brought in, where with backdraft it is a low temperature condition where air and smoke freely mix for a time before an explosive ignition through a secondary source.
@williamharvey1477Ай бұрын
@@lorddrayvon1426 Backdraught is extremely predictable in most scenarios. If you are aware of the history of the fire (All windows and doors closed, fire been burning for a while) and can see these symptoms like pulsating fire gases from cracks around windows and doors then the danger can be mitigated. As you saw in the video the reaction isn't instantaneous once the compartment becomes ventilated so as long as you are aware that you have a backdraught scenario then you can manage it effectively.
@paulhayes98503 ай бұрын
The sound of the pumping appliance ticking over brings back so many memories to this old firefighter 😁
@28ebdh3udnav4 жыл бұрын
Doesn't matter what country is what, firemen of all countries are practically heroes.
@andynonymous6769 Жыл бұрын
I think the hero worship is overblown and dumb
@gwynm85067 ай бұрын
Not practically, they are heroes
@billdang39537 ай бұрын
@@gwynm8506 Also remember what somebody said about firefighters "Real men run into burning buildings".
@joshlee79356 ай бұрын
@@billdang3953 because it’s so heroic going in and risking your life for an inanimate object. Get them going on medical calls and actually living up to their title of first responder then we’ll talk heroic. Sincerely a paramedic
@j3ss0056 ай бұрын
@@joshlee7935 fascinating
@roykale91414 жыл бұрын
3:19 when Santa falls in the chimney
@p00pie4 ай бұрын
farts* in the chimney
@dudeyourlame6665 жыл бұрын
So this is probably why firefighters put holes in a roof and smash out windows?
@jf38235 жыл бұрын
absolutely correct ventilation is key to get rid of the gases and smoke. plus firefighters that may be inside a structure will be able to have possibly some vision being low to the floor as possible doing a search or combating the fire from inside.
@zigaselanmelavc39865 жыл бұрын
only dumb ass firefighters smash out windows
@kuliouou495 жыл бұрын
@Simon Carstensen Incorrect.
@kuliouou495 жыл бұрын
@@jf3823 not absolutely correct
@senor_935 жыл бұрын
@@zigaselanmelavc3986you are wrong. I bet you dont know anything about firefighting
@andyowens54944 жыл бұрын
Training, learned from bitter experience, that saves lives. Good instruction too.
@Youre_Right5 жыл бұрын
That is so cool. Fire is such a beautiful, but deadly thing. Watching this backdraft is amazing how it just flashes over in an instant.
@hvfd59563 жыл бұрын
Read the smoke - it is telling you what is about to happen...and where you don't want to be. When they re-opened the door after letting the pressure build - Smoke is coming out and moving up at a rapid pace....but if you look at the bottom of the opening, you can see smoke going in. Then Whoooosh! Interesting setup they have. It worked very good for this demonstration.
@jason300c15 жыл бұрын
3:15 .. This is what we All came here to see. Also, his voice quality was really low, was hard to hear.
@Kyun94326 жыл бұрын
I love the instructor
@johnnz43754 жыл бұрын
I think that the fence needs to be repositioned.😂😂
@seank53233 жыл бұрын
Agreed
@elijahnicholson64535 жыл бұрын
"It's a living thing Brian."
@marcd.18373 жыл бұрын
You can here it breathe
@280StJohnsPl3 жыл бұрын
@@marcd.1837 Stupidest movie ever made
@jhyland875 жыл бұрын
Maaaannn... I was expecting an explosion that would .... .... As i was typing that, an explosion happened. Lol.
@keiththomasOstomate5 жыл бұрын
Lol
@jhyland875 жыл бұрын
I was going to say "that would throw a guy a couple hundred feet through a car windshield, killing him instantly" (reference to the Backdraft movie), and i wasnt disappointed.
@Leoprincess30385 жыл бұрын
😂😂😂😂 same. Soon as I was ready to be disappointed lol (awwww man 😔) my patience paid off lmao
@TurkishChubs5 жыл бұрын
3:18 HADOUKEN!!
@juun.j4365 жыл бұрын
TurkishChubs 波動拳!!
@pachi_yakumono_daisuki_kun5 жыл бұрын
HADOUKEN is LOL
@elwolf85364 жыл бұрын
😂😂😂
@12000gp4 жыл бұрын
🤣🤣🤣
@horrihorri69342 жыл бұрын
Meilleure vidéo expliquant ce phénomène. Merci 3:20
@12345fowler3 жыл бұрын
I remember this movie, I went to see it twice or even 3 times I was captivated by the backdraft scenes.
@KCFindsDesign4 жыл бұрын
Beautiful Demonstration
@derKarl_stp5 жыл бұрын
that was a nice demonstration of a backdraft
@meconlimited38964 жыл бұрын
@ 2:39 Look at the colour of the smoke it's green brown it is going to blow
@MichaelZesty8 ай бұрын
Fyi, when this happens in the scale of a whole burning building this has the power to destroy brick walls.
@itszain63175 жыл бұрын
Slow Mo Guys anybody?
@mn_05545 жыл бұрын
Yep
@Leoprincess30385 жыл бұрын
Your wish was granted they definitely did one
@Leoprincess30385 жыл бұрын
kzbin.info/www/bejne/kKqmdIqrhJWgh9E
@bostonrailfan24277 ай бұрын
i have new respect for the firefighters here, that building was loud and instantaneous: they never took their eyes off of it, i assume they were ready to hit the deck in a split second to avoid the possible blast
@HeathenGeek5 жыл бұрын
This is behaving just like a bitumen boiler fire when the lid is used to cover it. Same shape / type / colour of smoke. . . only much bigger. Whodathunk?
@ILLFINGAZ4 жыл бұрын
That's exactly what happened to me when I was getting my charcoal grill ready to cook some steaks. I got the charcoals started and closed the lid thinking I had enough ventilation but nope! Came back outside to check if the charcoals were ready, opened the lid and I had a ball of fire in my face. My hair and eyebrows were smoking. All I seen was orange flames. My daughter was out there at the time when it happened laughing her ass off. 🤣🤣 I never did that again. That shit was scary as hell. Live and learn.😂😂😂
@emmanueludoh774 жыл бұрын
Bro, exact same thing happened to me. The fireball could have taken out my eyes but luckily I wear glasses. My eyebrows and eyelashes were singed.
@angelicatorresjaramillo35313 жыл бұрын
Raúl Jaramillo D 👍
@taraelizabethdensley9475 Жыл бұрын
Wow! That was facinating, although also scary as heck
When yuo see the theory front of yuo materialize... é sempre bom voltar as aulas, aos treinos rsrsrsrsrs
@lyandramaldonado7004 жыл бұрын
Muito top! 👏👏👏👏👏
@ajpollard80965 жыл бұрын
That was a sick vape trick bro.
@jddr.jkindle97086 ай бұрын
Scary, but great training!
@mezing_84253 жыл бұрын
merci c est beau
@mikegrant84903 жыл бұрын
The Dragon was just waiting... to breathe. The Dragon is very patient. Sooner or later, he will breathe. Respect the Dragon.
@Korgon20134 жыл бұрын
Mother in law found her laundry room on fire and opened the door- whammo- huge backdraft. They got out but lost the house.
@xr80kk3 жыл бұрын
It’s hard not to instinctually open the door, glad they got out
@kroegerjames74248 ай бұрын
Alright, so in this video they show a backdraft in action, my only question is how do you "fix" the problem without causing a backdraft to happen? Or do you simply wait for the fire to die
@jojojeep14 жыл бұрын
I heard of the movie called Backdraft but I never knew it was holy , How does a fireman know when it’s going to happen
@montydon67773 жыл бұрын
That was a good one.
@mhaskins37693 жыл бұрын
That’s the longest train I have ever heard, geez what was the noise in the background? Impressive backdraft
@paulhayes98502 ай бұрын
It's a fire appliance pump ticking over, ready for use for fire suppression.
@Cuax664 жыл бұрын
Alguien sabe cómo se llama a esa reacción y porqué se ocurre?
@alphalima75724 жыл бұрын
Slowmo guys did an episode on this, you should check it out
@jonathanaltamiranda372 ай бұрын
Por qué cambio el color del humo al cerrar las puertas
@user-ro3ej6eq3l4 жыл бұрын
빽드리프트 현상으로 건물 안에 발화가 극심한데 문을 다 밀폐시켜 연소 작용할 산소가 부족한 상태로 가스가 축적돼있다가 다시 공기를 주입하면서 축적된가스와 공기가 만나 폭발하는 현상
@ralphdoremy-fasola27965 жыл бұрын
support your local firebrigade !
@shishirbaghel82033 жыл бұрын
Best experience
@davejunior104 жыл бұрын
Wow. That’s intense
@ltzvideos5 жыл бұрын
What happened on final? Someone explain to me please?
@markmaunder63995 жыл бұрын
A backdraft is a dramatic event caused through rapid re-introduction of oxygen to combustion into an oxygen-depleted environment in a fire; for example, the breaking of a window or opening of a door to an enclosed space. Backdrafts present a serious threat to firefighters. Source: en.wikipedia.org/wiki/Backdraft In the video, they close all the doors to the space, depriving the fire of oxygen. Then they open the door and you can see the lower area is sucking in oxygen. Once the space has enough oxygen, you have a room with an oxygen fuel mix. The fuel is the smoke from the smothered fire which is flammable. In the final moments, that mixture ignites and rapidly burns.
@AntoniCF5 жыл бұрын
Basically an explosion of overheated gases
@killman3695475 жыл бұрын
+LTZ VIDEOS. what's happening is when all the hatches are closed the fire dies down to a smolder and cooks the flammable materials making them release their flammable gasses. when a hatch is opened some of said gasses rush out from the pressure, but once the pressure between inside and outside is equal air begins to be drawn in, once the air and the combustable gasses reach an explosive ratio... kaboom.
@TheGraham273 жыл бұрын
Just wow.
@emmanuel-in-greece69543 жыл бұрын
I was expecting a backdraft to occur as soon as that front "window" was opened, but it didn't happen until several seconds later. Can anyone explain the reason? Was outgoing smoke so thick that it was delaying incoming air getting in? Thanks!
@jeffploetner3 жыл бұрын
I was wondering the same thing
@jeffploetner3 жыл бұрын
I think inside was too oxygen depleted and it took a while for enough oxygen to get back in and mix with the smoke to ignite... if something is too fuel rich it won’t ignite right away.
@jy89922 жыл бұрын
This could actually be an instance of ventilation induced flashover, which is often mis-labeled as backdraft. A backdraft will almost instantly happen when oxygen is introduced and requires enough oxygen to be introduced to a fire. A backdraft also needs the heat content to be at a level where the oxygen is the only thing needed for the event to happen. A ventilation induced flashover is exactly as Jeff explained, the fire basically resumed development once the door was opened and looks like a backdraft with these conditions once the fire flashes over.
@sdcrym2 жыл бұрын
@@jy8992 I think you have the terms backwards
@jy89922 жыл бұрын
@@sdcrym you could be right, it’s been a while! In any case, they are similar events, but not quite the same.
@TheLandbruiser6 жыл бұрын
Where do I get this class? Presumably, I’m a firefighter already and could benefit from this training. Thank you.
@nickdennis69535 жыл бұрын
joe carmack your fire service you work for should provide this training all the new recruits we have come through the doors get this training before they even go out into the public as a firefighter you need to ask about it as this is vital to save your life
@op3l5 жыл бұрын
wow, that's... scary So after the backdraft, does the fire go out? or does the pressure building start again?
@AgentFourtySeven_5 жыл бұрын
The fire keeps going and the pressure only happens when the gas has nowhere to go so it shouldn’t build pressure.
@joeyquiroga31024 жыл бұрын
It'll burn itself out cause it'll run out of fuel
@sdcrym2 жыл бұрын
Most likely the explosion would break things enough to cause the fire to be more ventilated. But it's possible under certain conditions
@James-yx1bh2 жыл бұрын
🤘😉👉Their a move to Backdraft that is good too✌😇👍🕊
@TrailBaby3 жыл бұрын
So you can create a back draft opening even opening the front door/window?
@swt22962 жыл бұрын
Yes
@stevecortes92163 жыл бұрын
Wait for it...wait for it!😲
@treeqsinside87736 жыл бұрын
Wow
@arath9065 жыл бұрын
WHOOMP
@Neceros5 жыл бұрын
Whoa.
@elwolf85364 жыл бұрын
Never face a back draft without your hard hat
@eavyeavy28643 жыл бұрын
That Backdraft. Same one with Slow mo channel
@imautuber4 жыл бұрын
Watch the final moment in slow motion.
@emmanueludoh774 жыл бұрын
Why is the smoke white instead of black?
@grahamallen19703 жыл бұрын
People run from danger ....heros run towards it
@scaramagna10094 жыл бұрын
3:18 Katon Gokakyo no jutsu!
@user-md1dx7jf5x4 жыл бұрын
これは意図的に実験でやってるけど、もしも実際の家で起こったら怖いな
@Sharrendan4 жыл бұрын
Wooow! 👌😯
@Kleinebombair3 жыл бұрын
How Big was the Dragon Inside
@searchereverything65754 жыл бұрын
와.. 마지막 엄청나네!!!
@Leoprincess30385 жыл бұрын
This was fucking cool 😂🔥🔥🔥
@miguelantunes87852 жыл бұрын
not so cool mate
@pemadamapi5 жыл бұрын
Caracter of fire
@plaguey20226 жыл бұрын
3:19 fus ro dah!
@angelicatorresjaramillo35313 жыл бұрын
Raúl Jaramillo D 👍
@danielvvls134 жыл бұрын
Me trying to control the temp on my smoker
@liamsngauge87704 жыл бұрын
3:19 looked like a jet engine
@roma_j26 жыл бұрын
Parece um tiro de canhão nuuu
@kevinwu19994 жыл бұрын
oh my.
@Siberia-s4 жыл бұрын
No harm for train service above this place?? lol.
@Mattd252 Жыл бұрын
A spokesman for the South Wales Fire Brigade said… “fucking hell”… 😉😂
@keiththomasOstomate Жыл бұрын
😂😂😂
@2.2nico173 жыл бұрын
the container trying to blow Os lol
@bry1202 жыл бұрын
Backdraft kills the fire faster the firemen. This is like the hot house of my neighbor. They are high after
@Nyklas4 жыл бұрын
Where his helmet ? ?
@fransalinas6694 жыл бұрын
Tanta contaminación solo para que salga esa explosión No mam.n
@delllllllllllllta6 жыл бұрын
3:15
@therealblueberry56306 жыл бұрын
최윤민 real mvp
@plaguey20226 жыл бұрын
Thnx mate
@pedrogasparini86363 жыл бұрын
senai alguem
@colinbreen33634 жыл бұрын
Kurt russel ssssaaaavvveeee mmmeeeee
@hdk1BB773 жыл бұрын
すべての扉を閉じて一時的に炎が消える所、”潜む”って感じで怖すぎる。
@frankiewojtas71506 жыл бұрын
Amazballs
@user-pq5dx6bp9p6 жыл бұрын
와 무섭다...
@ericlutz79394 жыл бұрын
Can someone with an adult volume voice please try to explain.
@MrJoevette054 жыл бұрын
Eric I may be mistaken but I believe when flame is smothered out and then gets a source of fesh air it's explodes with vengeance.
@bentatsch43954 жыл бұрын
@@MrJoevette05 That's pretty much what a backdraft is, yes. The fire lacks oxygen, so the flames go out, BUT there's still a ton of heat in that room, smoke/gas keeps building up. As soon as you open a door or a window, you add oxygen to the mix, and all of the heated gas that has built up ignites again. And in this case, they gave themselves a little more time. This is basically opening a window to the room - because the gas is under pressure, it expands outward first (pressure inside higher than outside), but as soon as enough gas has escaped and the pressure more or less equalised (the 'gap you can see right before it happens), fresh air comes in, remember it's still super hot in there, and there you go. It happens faster if you open up a larger area - if they had opened the door fully, the backdraft would've happened faster as there is more room for gas exchange to happen. Basically, if you suspect there's a fire behind a closed door or window, DO NOT OPEN IT.
@sdcrym2 жыл бұрын
@@bentatsch4395 the flame source doesn't go out in a backdraft. After the door is opened, an explosive mixture starts to form until it touches the flame source. A ventilation induced flashover like you're describing isn't about explosive gas mixtures necessarily, just materials above their flame temperature with no oxygen
@hrguy80196 жыл бұрын
Fire is beautiful
@altheawilliamson69786 жыл бұрын
HR Guy v
@Youre_Right5 жыл бұрын
Galactic Tuna Fire is beautiful. I have no desire to burn a dwelling or cause anyone harm. Fire is extremely dangerous and destructive. It also is beautiful.
@The_Sweep_Life4 жыл бұрын
Holy fucking fuck balls batman!
@Balabushka77165 жыл бұрын
えぇーーーーーーーー
@Jtttcagn4 жыл бұрын
feh, still weaker than my fart
@bweany67284 жыл бұрын
ahahaha
@chairwood4 жыл бұрын
😡💨
@Jeddah18203 жыл бұрын
That is fuckin scary.. wow
@Ricochet16166 жыл бұрын
FUS RO DAH
@RonicVll5 жыл бұрын
YOL TOOR SHUL*
@1224chrisng5 жыл бұрын
is the Asian guy from Yorkshire or something
@elwolf85364 жыл бұрын
Sounds Welsh to me
@Pepper9253 жыл бұрын
3:20 exactly what it looks like when the mother-in-law enters our home! 🤔🤔
@dimaleoniv79872 жыл бұрын
True
@khallilsaid87123 ай бұрын
2:37
@ladubabasarankultoka35675 жыл бұрын
Fire Ball dhakare na
@oozuwai4 жыл бұрын
日本じゃこんなラフにできぬ
@greghone64213 жыл бұрын
Realistic???? How many well developed fires in storage containers do fire fighters go to ???
@evilrubberducky923 жыл бұрын
The container is just a tool that’s used to force a backdraft to happen. It teaches the signs of a backdraft situation and helps train firefighters to recognise when this might happen. Meaning they can tackle the fire appropriately, while keeping everyone as safe as possible. Any well established fire that’s been starved of oxygen can/ will do this regardless of where the fire this.
@russellwilliams43173 жыл бұрын
Cool video, but was anybody else focusing more on wth dude was saying, rather than watching the fire? Dude sounds like he is from deep wood TN or back wood NO! Lmao!