> Our heat pump can generate up to 3 times as much heat as a resistor, using the same amount of electricity.
Though it doesn't mention the temperature at which this is achieved, only that the range is from 160 to 550°C.
The COP gets lower as the temperature difference increases as you can expect.
https://en.wikipedia.org/wiki/Coefficient_of_performance
> The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required.[1][2] Higher COPs equate to higher efficiency, lower energy (power) consumption and thus lower operating costs.