Resistive heating isn't pumping heat. It's turning zero entropy energy into heat. An ideal heat pump, on the other hand, creates no entropy.

Operating a digger to move dirt isn't pumping heat either, if we're listing project components that aren't pumping heat.

I'm guessing you caught but ignored the part that is moving heat?

	▲	pfdietz 21 hours ago \| parent [-]
		One can move heat from one place to another by moving a fluid. This is not a heat pump, even if the fluid is pumped. A heat pump is a specific kind of thermodynamic device that moves heat energy from lower to higher temperature. The system that is described in the OP link does not use a heat pump. Electrical energy is used to make heat, but it does so with a resistive heater, not a heat pump.