Water Heater Blast
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Uploader Comments (randallhilton)
Top Comments
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CSI needs an eposode with a timed water heater explosion.
3 years ago 4
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For reference a pellet gun fires a projectile around 800-1000 fps, the same as this water heater.
2 years ago 3
All Comments (40)
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great! my bed is right below our water heater!
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That was great. Now let's have a demo of one in a typical stick frame house, not a new one of course but one scheduled for demolition. I'd love to see the damage that a forty gallon water heater could do under the same conditions.
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yea watched a really old school video for my apprenticeship, that was mean.
scary to see how comon this can happen, aparntly in nz like 3 went off last year
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When they say the water heater would explode, I'm thinking they would do more of a "traditional" explosion like a gernade. Never thought a water heater would explode like a rocket though.
Nice demonstration.
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check hho projects on this sight and see how you can apply it to your demilitions and accidently turn it into your doomsday(if you dont research enouph).
i think mythbusters still have that beatin.
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That was a tiny water heater, nothing like the ones in most homes that are 30-50 gallon - 3 times as big, and the blast might be 10 times as powerful.
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You tell us to check the t&p valve, but how please tell us that.
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Yes I know why it was buried, but it doesn't change the fact that burying it will direct all the pressure upward. The expanding gases have nowhere to go but up, thereby increasing the force of the launch
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Modern water heaters are designed to blow up rather than out, so it won't destroy your house but it will punch a huge hole in your roof.
monkeyman1140 2 years ago
@monkeyman1140
Not quite accurate. Electric water heaters will tend to "rocket" upwards due to the bottom blowing out. Gas fired water heaters will tend to split on their side because the burner area and flue reinforce the bottom, making the side the weakest point.
randallhilton 1 year ago
By burying the water heater in this video, they confined the blast pressure thereby increasing the force of the explosion.
veryslyfox 2 years ago
Actually, it wouldn't increase the force. The reason for the hole was to make sure the tank went up, which was more predictable than if it had been allowed to fly horizontally. We didn't know if the side would split or if the bottom would blow out.
randallhilton 2 years ago
What was the Myth Buster PSI durring an explosion? like 250?
theshipman 3 years ago
Not sure but 250 seems a bit low. Of course, they're only rated to 150 so beyond that anything goes.
randallhilton 3 years ago