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this post was submitted on 17 Jun 2025
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How so, do they use heater resistors or a heat pump?
Electricity may be cheap sometimes but still, heater resistors aren't the most efficient.
They use resistive heating, so they can only charge it dirt cheap when there is surplus solar or wind.
Okay, I guess the heat pumps aren't suitable due to the economics or maybe cannot reach high enough temperatures.
As much as I've understood, yes - heat pumps have difficulty with reaching high temperatures.