We have 400V/16A, three phases, in kitchens for the proper stuff. That’s 19kW, if I remember correctly. Your strong power is like our standard power (240V/16A).
120v should get you a similarly fast boil if you have the same wattage (meaning you double the amperage compared to the 220-240v circuit). Most appliances are designed for standard circuits though, which in the USA are 120v at 15A (1800W peak, 1440W max constant load)
Making better kettles is easier when your entire electric grid is optimised for it.
Seriously, 220 volts will just always get you a faster boil than 120. It’s physics.
We have 240 in kitchens but don’t use it for counter top stuff
And it’s 2 phase
We have 400V/16A, three phases, in kitchens for the proper stuff. That’s 19kW, if I remember correctly. Your strong power is like our standard power (240V/16A).
120v should get you a similarly fast boil if you have the same wattage (meaning you double the amperage compared to the 220-240v circuit). Most appliances are designed for standard circuits though, which in the USA are 120v at 15A (1800W peak, 1440W max constant load)
With our standard 240/16A you’d get 11’000 W, that water will boil itself just thinking about that much power
Also, it uses much less copper, and there are fewer resistance losses