MythBusters - Exploding Water Heater

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Adam and Jamie learn just how much power a water heater under pressure really has.
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[@sstroh08]

Loved watching this, but just want to say, as a former plumber who used to work on these things daily, don't be nervous about this happening in your house with your heater. Three seperate failures would have to happen at once. All water heaters have a temperature and pressure sensitive relief valve that will open for either and relieve the pressure. Both parts of it would have to fail, then there is also an electric switch built in that kicks out if the heater exceeds 190 ish degrees. Also on top of that your plumbing would need to hold in that much pressure without something failing. Electric water heaters are not anything to be nervous about.

[@nekogod]

Indeed, they had to go to quite some lengths to actually get them to fail like this.

[@jbsbrickkiln9254]

We all know gas water heaters are the ones to be worried about exploding.

[@holladaycubed]

Thanks for the reassurance! I just bought my first house and it’s a new build and the water heater is in the attic above the master bedroom and every night after shower I hear it heating up the water and I’m like I know you’re new but please don’t explode lol

[@mattbowyer6865]

Indeed. Just don’t screw with the safety systems.

[@normayounan541]

What about gas water heaters? Mines right next to where i sleep so it makes me nervous

[@MaxwellAerialPhotography]

Is truly amazing learning after all these years, that Jamie and Adam’s friendship and camaraderie was all just acting and professional courtesy. Massive respect for the both of them for acting so professional about it and keeping the illusion alive for the fans for ask these years.

[@narutobroken]

LessCommonKnowledge to be fair you don't have to be friends with coworkers. You come in, get work done, and head home for the day

[@gaterunner64]

I met Adam while he was on a short day shoot in Northern California, and he was friendly, warm and sincere towards me. He had no reason to be any of those things, as I was just a contract vendor on the perimeter of the days events. I spent a good four to six hours in close proximity and he seemed to be an even tempered nice guy.

[@bragr_]

I don't really think they were trying to keep the "illusion" alive. They never claimed to be anything besides coworkers on the show and in interviews they frequently pointed out that they were not friends. I think it says more about all the rest of us, that we immediately assume that they are besties because they have a good working relationship and are on TV together.

[@idontknow164]

That is what makes Mythbusters work. Because their is sometimes friction and their personalities are so polar opposites yet they get along enough to have a show for 12 seasons.

[@1TotalJabroni]

While they weren't friends personally, you can be darn sure there was a good amount of mutual respect and they enjoyed doing a lot of these experiments together. I also think it's funny how a lot of times they made builds a competition where they would each make their own design separately. I think along with the mutual respect there was also a bit of competitiveness involved, and it all made for good entertainment. 👍

[@Arabesquian]

Adam said on the "Mythbusters Unleashed" tour that this water heater or one like it flew to about 850 feet off the ground. Whatever the height it reached, it was more than 500 feet, because the FAA was NOT happy when they heard about the stunt. They also kept the big water heater that launched, too, because they've been parading it out in their shows.

[@tabcreedence6553]

did the FAA get over it yet

[@tomsmith5584]

@Sammy N The FAA gets annoyed when you put uncontrolled things over 500 feet in the air without telling them. They want to keep airplanes away from the area when that happens.

[@CMDRSweeper]

@empbac Nonesense! A water heater will just help warm up the aircraft! As a result, the FAA is now starting to launch water heaters!

[@aliyahh5879]

weewwe we eweweeewweeeeeeeeeeeeeewe f see

[@scottalanclymer]

@Sammy N Aircraft (think helicopters) legally fly as low as 500" AGL (above ground level). Now imagine you're a helicopter pilot, out doing your job, and these asshats are launching water tanks to 850 feet. Make sense now? If I was the FAA chief for this area, I'd have lighted the full weight of the US govt on these idiots shoulders, for whatever fine that may entail.

[@sce2aux464]

"So, why do you think you have a problem with your heater?" 1:35 "...Oh."

[@revolutionaryprepper4076]

Note to self : Make sure that, hot water heater has a functioning, pressure release valve.

[@retrobat153]

Also make sure to have the pressure release valve go outside onto concrete or if its in the garage just pointing down, cause if that thing ever goes off it will flood and ruin wood or carpet

[@forrestgumball]

@@retrobat153 I had this one customer request that I routed the drain into her flower garden lol

[@MerelvandenHurk]

@@forrestgumball That sounds like a good idea, but wouldn't the water be hot? Pretty sure those flowers won't appreciate hot water... Did you do it? :P

[@Knightphall]

I had mine replaced recently.

[@vlaf9]

it stayed 13 second in the air. it makes 6.5 second of free fall, means that it climbs at 207 meters (660 ft) and his initial speed was 64 m/s - 230 kph - 143 mph. this is damn quick.

[@andrewwilliams5337]

I know this is 9 years ago. But your calculations don’t seem right. I don’t have the number to give the core to answer, but it wouldn’t have been falling for 6.5 seconds, that would be mean it fell as fast as it went up. It’s not a constant speed the whole time. It may have accelerated to peak hight 3 or 4 seconds in and free fell the for the remainder. Anyway that’s just my take.

[@FrankBenlin]

@@andrewwilliams5337 All velocity is not created equally. Terminal velocity is way slower than the detonation velocity that got it up there.

[@Owen_loves_Butters]

@@FrankBenlin I'm pretty sure the terminal velocity of this tank (which is made of steel) is more than 64m/s

[@leonardmilcin7798]

To all people wondering why water tank explodes and not just burst or leaks out. The explosion mechanism is BLEVE, which is due to additional energy stored in overheated water. As the pressure rises the water boiling temperature also rises. You could have very little steam in the container (say one cubic inch) but the pressure could be very high (it must be to burst the container). To reach that pressure, the water in tank must have overheated and for that it must have accepted huge amount of energy. The boiler reached 300PSI which means the water must have reached about 210C (boiling temperature at 300psi). Imagine the water in the tank is at 210C and now there is a hole in the tank and the pressure suddenly dropped to 1atm. All that water no longer wants to be liquid and wants to turn to gas. As the steam is at the top, and all water at the bottom, the water expanding has nowhere to go but up. This causes top of the container to be hit with rushing water. This typically causes the container to fail catastrophically and also is the reason why those damn containers go always up. The moment the container bursts all the energy that was needed to heat up water from 100C to 210C now is released in an instant causing a violent explosion.

[@nicholaswroblewski3069]

holy cow, didn’t know that i wanted to know. thanks

[@markemanuele1929]

When I worked at a Boy Scout camp kitchen one summer (1975) we had a water heater that the safety valve kept leaking. The camp director replaced the valve with a "replacement" that someone donated to the camp. He failed to actually look at the pressure rating on the valve. It turns out that the valve was for a high pressure dry steam boiler and not for a water heater. It turns out that the problem with the water heater was that the thermostat was broken, not the safety valve, and the night that the camp director changed out the safety valve, at about 1am we heard a big KABOOM, and a minute later heard a THUD. The water heater "rocket" went through the roof, blew out almost all of the windows in the kitchen and the dining hall, and made about a one foot divot in the parade field when it landed there. When I saw this episode, I already knew what the outcome would be, but I still laughed along with Adam and Jamie when their "rocket" took off.

[@Sparky-ww5re]

Too bad the camp didn't hire you as the maintenance director. Trying to defeat a safety feature is playing Russian roulette. While there's always the chance the valve is old or contaminated, in most cases, it is leaking because you have a pressure issue or a temperature issue, and the proper repair is to investigate why the valve is leaking

[@markemanuele1929]

@@Sparky-ww5re By the way, this was a propane fired 400 gallon water heater. We were very lucky this happened at night and not during a meal service, otherwise neither I or about 400 boy scouts and staff would not be around to talk about it.

[@eroraf8637]

Dare I even imagine what happened to the camp director after this? At the very least, I hope he learned something from the experience and is grateful to be alive.

[@graysonl.crespojr.4828]

Bullshit

[@codymoe4986]

@@markemanuele1929 Didn't you say that it failed to even blow all the windows out? How is that going to kill 400+ people?? You had a cool story going until you overplayed your hand...which immediately puts the rest of the story in doubt...

[@tcg1_qc]

Imagine this happening in your house

[@dysfunctional3837]

It happened to mine around 2010. Not too destructive but caused nearly irreparable mold damage afterwards.

[@tcg1_qc]

@@dysfunctional3837 damn

[@Jules-hl2ls]

Ours just leaked so it might

[@cutlerc2351]

Impossible if you have a pressure relief valve. All heaters come with them.

[@poptwo4]

It happens when a handyman plugs the relief valve because of a drip. Will work fine until the heaters thermostat decides to fail. 23 years as a plumber, I’ve seen it many times. Even saw the aftermath of one that went through the roof and rocked the house from the foundation. House had to be demo’d.

[@Marksman3434]

A water heater explosion happened in Madrid yesterday and blew away like 3 floors. Shit's gotta be taken seriously with these heaters, folks.

[@mysticm1543]

WOW was that in an apartment building? Makes me nervous to rent any unit over the boiler room, no matter what floor.

[@darkcupid3671]

Always loved this episode, this happened to us when I was a kid with one of the smaller water heater tanks (About the size of a 5 gallon bucket). The dipshit who installed it capped off the release valve.

[@player400_official]

Did you sue?

[@ronchappel4812]

Easily the most impressive thing mythbusters ever did.I still struggle to believe the height it reached.Incredible😳

[@Okie93]

Every time I watch one of their shows it makes me want to go and try to recreate what they do even though they say not to most of the time.

[@cross_guy]

Ok

[@TheSonicZero]

well definitely don't do this one

[@johnnycastaway]

Me to! never mind those others guys. ;)

[@vgaportauthority9932]

You need to reupload these golden clips, Discovery. It's like watching a rip of a VHS.

[@jbsbrickkiln9254]

There’s no way these looked this bad when we watched them on tv, right?

[@riverratyutoob]

Just dawned on me how the water heater takes off all of a sudden and why it goes straight up. The concave base panel is designed to intrude on the tank in a way that strengthens the container. But, when it finally buckles it "oil cans" to it's inside out shape with enough speed to rip the welds all around it's circumference. This suddenly releases the entire contents boosting it into orbit. If there were a "tear" panel in a safe spot on the tank the pressure might release in a more controlled and gradual rate.

[@ape8346]

and this is why as an apprentice, I feel they should show this in plumbing courses to really show the true damage of what a water heater could do like imagine this happening in a basement

[@ThePeterDislikeShow]

How much bigger before the heater leaves Earth alltogether?

[@euromobile900]

[@Skip.8221]

Sam Carlson A man of culture

[@appletree8441]

I died because my father did believe my uncle about it needing to be replaced.

[@drabberfrog]

A rocket is just a huge hot water heater with rocket fuel and an oxidizer inside of it instead of water.

[@daydodog]

Not possible in a meaningful sense, air resistance is too great at escape speed

[@pulaski1]

If Mythbusters was still running, they should (have) redo(ne) it with a drone or drones to try to capture the tank in flight.

[@Shadowkey392]

Bring this show back Discovery!

[@camodrums]

*Who's here because of the "Hot Water Heater Explosion" that happened in that Plum, Pennsylvania neighborhood?*

[@iamtherealzim]

this is my favorite :D by the way, about 2 weeks ago I saw on the news what happens to a house when the heater explodes... they found it 200 yards away... after it went through 2 floors and the roof!

[@onmyHONOUR]

The hot water heater episode made some of the most beautiful explosions ever on Mythbusters...

[@Ragequiitt]

i like how the mythbusters show takes 30 min for us to find out the myth. we search in youtube and find watch the entire episode in 3 min!

[@FoodloveFoodlife]

came here after the Pennsylvania Home explosion

[@bobgarske9579]

One time long ago and in the middle of the night our local fire dept responded to a strange call at a mobile home. Somehow the 40 gallon H2O heater blew up. The owners were in the bed just 3 feet from the H2O htr closet on the opposite side of the wall. Suddenly they were launched sideways bed and all and came to rest about 30' away on the slope below the home, shocked but unhurt. HALF of the mobile was stripped to the bare floor, completely GONE.

[@rustynail3159]

It was a Walmart store that had a water heater explode and they found it in the far parking lot of the next store over. Plumber friend of mine said that it blew a perfect round hole right through the ceiling.

[@theleonpasta7336]

So basically just make sure you're room isn't above the water heater and you should hopefully survive, though the blast radius is likely large that it doesn't matter, you aren't getting out without a lot of damage either from the blast itself or the shockwave which could probably destroy you're eardrums and maybe other things if you're near it

[@Shadowdoom345]

Awesome! Water-heater-o-doom... Went up just like a bullet... and I have one of those in my house. Thank goodness for safety technology.

[@veronicarubi7047]

The fact that one of these is in my tiny house...

[@rickiema]

small: no boom medium: boom large: KAboom

[@network_king]

This is like my favorite explosion they did, cement truck was cool but this is so strange and crazy it just makes cooler.

[@GunganWorks]

It’s like a mini version of SN9, except faster! Metal tank blasts off, free falls, and then comes crashing down!

[@ajdo1991]

@Rand0mManic Unvented Cylinders are usually equipped with three stages of protection; 1. A normal temperature thermostat, normally set between 55-65 Degrees Celsius. 2. A high temperature cut out, set at about 90 Degrees Celsius. 3 A temperature and pressure relief valve which will activate at 90-95 Degrees Celsius. As you can see, they went out of their way to disable the safety features of the cylinder. It is unlikely but nonetheless, possible. Always use a qualified and competent engineer.

[@Compwhiz128]

This actually did happen in my area, at a mexican restaurant on the south side of 152nd, west of 1st ave. The water heater went up in the air, moved in a north east direction across 152nd, across 1st ave, landed in a pizza hut parking lot which resides on the east side of first avenue, and on the north side of 152nd street. Yet no one was hurt at the restaurant or out on the streets :O!

[@roxannewolfofficial]

did it go thump when it landed?

[@LeoEnigma]

Guess I won't be converting an old hot water tank into extra volume for my air compressor then

[@vikkbiff6029]

Aren't water heaters supposed to have an emergency blow off valve and dump the water before it gets to dangerous pressures?.

[@Adramelk]

love how it sounded just like a clap of thunder when it took off for the grate blue yonder

[@LisethH]

seeing this and being informed the boiler in my apt almost exploded is scary.

[@Muscleduck]

Confederate rocket used to be my favourite myth. Then they did this... This is my favourite myth and explosion they ever did.

[@BlueEarthTech]

I appreciate the entertainment value of the show and this episode. It successfully demonstrates expansion of compressed gases, however, not properly harnessed. This occurance is happening within every gasoline and diesel engine. Expanding gases are what is forcing the pistons down into a crank mechanism. What if instead of needlessly using gasoline or diesel fuels utilize high pressure 1500 psi compressed air. I have three (3) patents for a compressed air motor that can achieve this as a viable alternative to electric motors and gasoline engines. Clean air in and clean air out.

[@mickblock]

In a home inspection class I took the instructor had told us of a homeowner who capped off the pressure release valve on his water heater. I think it was dripping. Which, unknown to him at the time, is an indicator of regulator failure. So when the completely regulator failed his water heater over-pressurized and blasted from his basement clear through his roof. It was found severy blocks away. Hows that for an air-pumped water rocket!? :)

[@chrisyoung6588]

Always make sure the tank is full of water bleed the lines even before you light it up

[@sploonz]

this makes me worried. At work we have a big one like that, and recently its been kinda faulty . . . If that thing goes off, it'll blow a hole through our wall.

[@themcfaceman]

did ya'll ever get it fixed

[@fbi3579]

now im afraid of my water heater

[@Solifeaul]

Don't be! Especially if you live in a house, there are three separate safeties that would all need to fail for anything close like this to happen, plus your heater is probably significantly more sturdy than your water pipes, which blow first.

[@Yatef]

I love Mythbusters...they never disappoint with their Ka-Booms.

[@Sonicgott]

Adam mentioned that this was his favourite explosion. Well, he was more convinced it was a conflagration rather than an explosion. Apparently, the sound and visual effect is just satisfying. Adam, I have to agree. I just love watching stuff blow up, and this was very cool. :D

[@Compwhiz128]

I remember when a water heater exploded at a mexican resturant here in Burien, It flew up into the air and landed in the pizza hut parking lot on 1st AVE and 152nd

[@hersheywithalmonds]

this just might be the coolest myth they've ever done

[@vidopnir]

This actually is the footage of Starlink SN1 preassure test

[@looteverybody]

It goes up so fast! I love it

[@bubbles093]

I didn't realize that this was three years ago. Wow. I haven't missed an episode in over 3 years. o.o

[@jbsbrickkiln9254]

Now it’s 15 years ago.

[@xphobus]

A water heater at home cannot explode even if the safeties malfuction because the pressure will always expland on the water supply, which is connected. Most likely the heater will overheat until the heating elements burn before anything else happens...

[@geomodelrailroader]

Yes it will a water heater is a large boiler you tamper with the safety valve it will explode and it will go through your roof

[@lumlian]

xphobus Wrong. Houses have been knocked off foundation due to exploding water heater.

[@Enzyomes]

Charles Doyle name one

[@robertlee-nq6mg]

m.scmp.com/news/hong-kong/law-and-crime/article/2163329/explosion-hong-kong-police-station

[@chubchub1307]

@@robertlee-nq6mg that was not a water heater expluuusion that was the *KKK* dOin that

[@Circuitssmith]

I wonder what would have happened if they had put stabilizing fins on it.

[@henristephane7920]

IT IS THE BEST TV REALITY

[@tomconner9695]

The boom is caused by the dimension of the bottom of the tank, its concave,when the pressure builds above the level of the “burp” or “dent’s” concave design threshold it gets popped out like a pop-O-matic die tumbler in some popular board games, or one of those hand ball halves you push inside-out and put on the table when they’re cold, and suppress your laughter, until dinner is half way done and the taters warm the thing up “PAAPP!” goes careening off of the ceiling into the grasp of the cat, never to be seen again if Mom finds it before you do, simplicity, install a pop off valve at a safe but worthy pressure, say, 180, set your shut off valve at150, hang the tank by the two eye rings on the top, (beneath cover and insulation) with kern-mantle rope from a support beam so its at least 20” off the floor, plumb a water drain valve near the bottom so it extends two inches down and 18” from the tanks outside diameter (you can use any factory bung with reducing pipe thread adapter, two double inverted flare line insert flanges on either side bend inside line so its as close to or touching lowest level or use adhesive to fasten a flexible tube weighted on inner end to a nipple, use 5/16” transmission cooling line to a union with a ball valve. take a rubber-made trash can slide it under the tank after running your air lines at least two feet higher than the top of the tank, or enough to clear the trash can by a foot and a half put a pallet and a piece of sheathing-under rubbermaid or dollar store can test for leaks fill the trash can with bentonite clay, “old type cheap unscented cat litter) or old not too oily speedy dry mount service and safety valves so they extend outside of the trash bin, add in about a box of arm n hammer washing soda or borax, add water slowly to hydrate the speedy dry or sand install lid add safety and input output lines gauges shutoffs, don’t mount the compressor unit to tank, run a heat exchanger, (compressor to tank line through a larger diameter pipe with T fittings on each end, epoxy the airline tubing ingress egress ends ( or wind a coil of tubing in and out of a water bucket to keep incoming air temperatures low, you cab bury the tank in the ground, with two feet of packing peanuts in a trash bag on the bottom and if it goes you’ll only have a mess in the shop or ruptured air tank to remove, (sulfuric acid, alum, and a safe oxidizer (Don’t Do This Yourself For God’s Sake, the wrong sequence could kill you unknown variable reactions can cause poisonous fumes) dare someone you don’t like to do it! Duhhh! Jk, Sorry for the long winded book but anyone of these things as a precaution I just got it thanks safely I’ve seen guys do it friend of mine was a really good welder he set one up, real tall water heater tank, it let go, left the building, the sound we heard from a half mile away, i can only attempt to spell, “BAH-W-KAKKK-OOOM-BASH!!” broke the joists, rafters and about a square of shingled plywood off of his garage roof, we couldn’t tell where the tank went, I don’t think he ever found it, (?) i don’t think so. Send the next one he did he welded ribs around it with feet to elevate it, Use the pressure washer with about 3800 pounds of water (no air at all!) pressure, and slowly re shaped the thing, That’s not how much pressure I put in the tank that’s how much the pressure washer had I’m sure it complied with the intent long before it reached pressures anything close to that high!

[@BigDraco244]

Trident home inspections group can make sure that your water heater doesn’t do that hahaha

[@zxcvbob]

Did you have the tank half-full of water and then piped in compressed air until it failed, or what? (that's what it looked like; I saw a temperature gauge that said 70-something degrees F) If so, you missed an important part of the experiment. An actual WH explosion has superheated water converting to steam and is a lot more energetic than compressed air. Look up "BLEVE" Maybe you covered that in the episode; all I saw was this video.

[@glenn1285]

CALLING MYTH BUSTERS: Jamie/Adam (Peter Rees) You need to do a EUROPEAN version of this . . . . . Apartments with steel reinforced concrete floors, but 'card-board' interiors. I think this would be even more devastating with the cylinder possibly ricocheting many times within an apartment floor and/or an explosions that would devastate many apartments on that floor, and possible compromise the structure of the entire building. The walls between the apartments and walkways are usually single or dual breeze block, as with the outer wall. The walls within the apartment are usual wood or steel studs with gypsum plaster-board. Can you not find an apartment block about to be torn down, but set up this experiment before they start ripping it apart and then repeat your experiment? Kit out three entire floors (several apartments per floor) and put the hot water cylinder in the middle floor? I suspect there might even be enough power to lift the concrete floor that it initially hits. Typical water cylinder sizes in Europe are 210L! It would really help to motivate the owners and landlords to take yearly and consistent inspections more thoroughly.

[@JohanBrodd]

Holy crap! That was a loud kaboom! I allmost blasted my speakers with it.

[@Random_4400]

English subtitles: small Nobu medium boom Extra-large cob boom Me: LMFAO 🤣🤣🤣🤣🤣🤣🤣🤣

[@oatnoid]

Had to relight the pilot light on my 75 gallon water heater this AM so I thought I do a refresher course.

[@Hickeydog2365]

Yeah, a water heater just punched a hole in the ISS.

[@Vikturus22]

THAT WAS THE COOLEST THING I HAVE EVER SEEN! I saw this today and have been Dying to re see it lol

[@MaceH1ndu]

@Logixmaster just refresh the page to skip the ad.

[@jaimeoops]

Holy crap! 300 psi? that tank was kind of sturdy.

[@rwboa22]

Way cool dude!!! Puts me in mind of the air-pumped water rockets I had as a kid.

[@tsnap4]

two words: straight up!

[@MojaSzerokosc]

Damn, I miss that show 😿

[@Brustkle]

The most energy efficient rocket launch ever. lol

[@rybaluc]

Yep they have and maybe they works. But it is sad that new cars absent motor temp monitor. Its not so handy in my cold country in the middle of europe, but in some hot countries you really need to watch this;) Some car engine cooling systems are more prone to failure than others.

[@fm2dmax]

Woah, what's that like for DHW tanks loaded into ATTICS? Yes, I know ... insane... but I've seen several in my time, DHW tanks installed into attics!

[@epiclabre]

When you subscribe, whenever the user uploads a video, you get it in your subscription box.

[@myuphrid]

NASA called; they'd like to call you guys in for a job interview.

[@Mola_P]

I lov this show verrrrrrrrrrry much

[@helloworldstein]

my favorite episode.

[@VulpisFoxfire]

Yeah, Jamie, that was just a *little* more energetic. ;-)

[@charliedallachie3539]

500 feet is like the Washington monument…. Or half the biggest Manhattan skyscrapers 😂

[@scottalanclymer]

Main question here: was the tank full of water? If it was full of air only, then these results are valid. If it was full of water, then the tank would burst, not explode. Major difference.

[@JelleM3]

my thoughts exactly

[@weapondrift]

Im still waiting for them to find out if Television really rots your brain.

[@slipknot73745]

Remember to check your PRV's, everyone!

[@RAINBOWHORSES]

Our fascination with bottle rockets translates into this. Little kids play with plastic water bottles, men play with huge ass water heaters.

[@swedensy]

Take it to next level please. Build container so strong so that expending water can not brake out. If so, what gonna happen to that water? Same goes to ice in pipings, they crack/explode when water freezes in tank or pipes in closet system. But one guy built so strong pipe, even at -38C the pipe did not crack, instead he created different kind of ice in that pipe:)

[@thenavido]

this is adam's most favourite explosion of all time

[@EstCrossings]

So it's a non-radioactive Chernobyl?

[@MaceH1ndu]

That was a satisfying sound, wouldn't want to be near it, of course.

[@mikkelduden]

small; no boom, medium; boom, extra large; KABOOM :D Haha, gotta love adam!

[@Karascool]

This was such an awsome spisode.

[@80slimshadys]

i used to sit on a large water heater that was bulging on one side. Was told it was close to exploding. I used to sit on it and watch movies outside. I had to sleep with it on the other side of the wall from my bed knowing it could explode.

[@CeeKayz0rz]

I wonder if the guys at that rocket rail track (where they sliced the car in two with a rocket cart) would let them build a water heater-powered cart to see how it compares to a real rocket... :D

[@DangerousDac]

The wide shot here is in no way the actual shot of this explosion.

[@sagesaria]

Best Mythbusters explosion EVER.

[@roxannewolfofficial]

the concrete one was better

[@hydrogenbond7303]

Yes, Rico. Kaboom!

[@doctorwhom1]

if i ever found my own country i'm hiring the mythbusters as my arms makers what soldier could with stand a hot water heater flying at their head? ICBWH- Inter-Continental Ballistic Water Heater

[@JaceTan-90]

What we didn’t show you, and expect you to pay for the DVD specials so that the footage of the bigger boom’s expenses doesn’t go to waste, is the …….. hehe

[@xplodingbunnys]

Holy crap, that went high !

[@marvinthemaniac7698]

The water inside of a hot water heater tank is said to be 140°F.

[@enounce]

Evan in slow motion with the MySpeed plug-in, the heater still just disappears off the ground.

[@mikemullen8174]

Rumour has it Elon Musk saw this and thought, 'add some fins and a nosecone...'

[@dumbdig86]

Great tutorial! gonna try rn

[@fishyinadissy]

14 years! thats a long time! i wasnt even alive then!