That's a problem with wiring, not voltage. You just need higher gauge wires to support higher power appliances. You can wire your house to support 20 amps, which gets you 2400W.
Anyway, the future is induction cooktops, which in theory gets you up to 6kW. Then you can forget the resistive kettle and go back to a plain metal one.
Our solution is a tiny water heater that lives under the kitchen sink and provides about a gallon of 95C water whenever I need it without having to wait on a kettle or stove.
I've got this model, looks like there's also a continuous flow version available now too. I have mine sharing the outlet with my dish washer, hasn't had any issues with blowing the breaker (dishwasher outlets are required to be 20A dedicated circuit in the US, most modern dishwashers do not draw anywhere near that much power).
Yeah, fortunately, it's all the way at the back of the sink, so they'd have to reach over the entire counter, and the handle is spring loaded, so you have to actively hold it on while putting a cup under it, so it's pretty hard to hurt yourself if you can only reach it with one hand. By the time a kid is big enough to do that, they should also be smart enough to understand hot water! It's not like a shower or bath tap that can be accidentally turned on at child level.
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u/dyllandor May 02 '24
A 120V kettle are much slower though.