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"Boiling a kettle, for example, takes around two kilowatts."

I guess that was a very small amount of water or it was already pretty hot.

While I agree that the word 'boiling' should probably be replaced by 'running', the power draw of a typical kettle is indeed around 2 kilowatts. The amount of water or the starting temperature is not relevant for the power, but just for the total energy required, measured in kWh.

You are right. I mis-read the latter part due to the former implying total energy.

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