My car charger can boil water really fast [video]

In the US. In the UK 2200W induction plates are readily available with a standard plug for ~£40, or if you spend a little more you can go to 3kW - [0] which is about the limit of most domestic circuits but is hotter than most gas hobs.

If you _really_ want more than that you can go a little mental and use one with an integrated battery which can push out 10 kW [1]

[0] https://www.nisbets.co.uk/nisbets-essentials-single-zone-ind...

[1] https://www.impulselabs.com/

Sure, but over in 230V-land 3500W hot plates are completely standard, and can plug into any regular wall socket. Same with microwaves and hot-air ovens: just put it anywhere on your kitchen countertop and plug it into the nearest socket.

We do also have a "kitchen plug" for high-powered appliances. Those go up to 7.3kW in their regular dual-single-phase 16A version, 11kW when wired with three phases (quite common in households these days), or even 17kW with the (understandably) rarely-used 25A plug variant with three-phase wiring.

And that's not even commercial equipment, just what you'd pick up at your local Best Buy equivalent. The commercial stuff uses CeeForm, which is a three-phase 16A/32A/63A/125A plug. Or it's getting hard-wired.

I swear Vevor makes everything.

For a small amount of water, I would be afraid of flashing the water into steam, and the resulting steam explosion.

There is something like that in the original video - running a 120 V kettle at 240 V makes it boil four times as fast. But only a few times.

For sure, you could use six 240V heating elements wired in series in three pairs to get their rated power.

Of you can wire 240V elements directly to 480V to quadruple the power, as shown in the video ;)

3-phase electeode Boiler comes to mind. Just have it as a pass-through with a grounded shield at the end to keep you from accidentally touching dangerous voltage.

You might need a pressure vessel and a stirrer to hit 100 deg C in 5 seconds.

I would love to see that.

You could run (10) of these 9kW 480V three-phase immersion heaters [0] in place of your 85 HP motor, assuming ~110A FLA @ 480V = 91.5kW. The 9kW immersion heaters are 10.8A each at 480V three-phase (would be 75A if it was 120V single-phase!)

Just make sure you have somewhere for the steam to go, it takes up a bit more room than water ;)

Is your three-phase a corner-grounded delta service? I’ve never seen one in the wild but I hear they’re used for three-phase ag service drops that are strictly used to run motors. A and C are tapped normally on the secondary but the B phase is bonded to ground and also a line conductor, conductor color is white for B phase instead of orange.

[0] https://iseinc.com/_shop/480v-3ph-9kw-immersion-heater-47-14...

I have an electric water boiler like that also. I have to be very mindful to press a button to turn it off if i return it empty to the induction plate/holder otherwise it starts clicking and beeping and freaking out.

I have a kettle with 5°-settable temperature targets that has transformed my tea drinking.

It also has a function to hold temperature for up to 30 minutes, and because it has actual logic going on inside, when you lift it off the base it knows this and won't turn back on when you put it back.

> the boil-dry protection circuit continuously engages and disengages until somebody notices or the thing self-destroys – ours did the latter.

It is always fascinating to see unforeseen failure modes created by automation.

A 2022 Technology Connections video explores various ways to boil water: https://www.youtube.com/watch?v=_yMMTVVJI4c

And a 2020 video about different voltages in the US electrical systems: https://www.youtube.com/watch?v=jMmUoZh3Hq4

I highly doubt that. Electric kettles are just about 100% efficient, and the only difference between a 3kW kettle and a 2kW one is how long it'll take to boil. The total energy consumed will be more-or-less the same.

Are you perhaps conflating it with the EU regulations on vacuum cleaners going in around 2017? As with all EU regulations, this of course resulted in a decent bunch of EU-bashing in UK media by the usual suspects - despite less-power-hungry vacuum cleaners being just as effective as the more power-hungry ones, and power consumption being inflated by manufacturers to market their vacuums, as plenty of people believed that "bigger number = more suck = more better".

But the more powerful kettle should be slightly more efficient[0] because there is less time for heat to escape from the kettle while the water is being heated.

[0] Energy efficiency at boiling the water. A kettle is always 100% effective at making heat.

There was no such thing in the UK. ChatGPT is trained to produce text that fulfills the user's expectations. If you put a prejudiced prompt in, expect a corresponding result.

People are downvoting you because your story seems crazy, but you’re right (and wrong).

In the early 2010s there were reports that the EU was set to ban 3kW kettles in the anti-EU tabloid press.

The ‘plans’ were discussions, were general (about ‘high energy appliances’, not specifically kettles), and never got beyond the initial discussion stage - according to the same press because of fears they would drive Britons to vote for Brexit, although I’m not sure I believe that. As other commenters say, unlike other appliances that could be made more efficient, kettles are almost 100% efficient already, so the power draw doesn’t really matter. I still have some faith the authorities looking into home appliance energy efficiency would know that.

https://hoaxes.org/weblog/comments/eu_not_banning_kettles

https://www.the-independent.com/news/uk/politics/eu-pauses-p...

UK power grid has the Eastenders effect. Where the ending credits of the Eastenders soap signals a large increase in power draw from the grid as people will put on the tea kettle at the end of the show. The grid operators have to dispatch enough power to cover for this.

While the amount of energy used to boil water at 2kW is not significantly different from 3kW (2kW has a tiny amount of more atmospheric losses I think), there is a difference for the impact on the grid. Same energy but more power generating and transmission line capacity needed.

A larger heating element is very slightly more efficient due to less heat escaping as the liquid is heated more quickly. Resistive electric heating is always 100% efficient no matter the size of the heating element.

Keep in mind that heat is constantly being transferred between things that are different temperatures, the faster something reaches the set point temperature, the less time there is to lose heat.

https://en.wikipedia.org/wiki/Heat_equation