nebula

Maybe try looking it up.

Electric resistance heating is 100% energy efficient in the sense that all the incoming electric energy is converted to heat

Baseboard heating is 100% efficient but heat pumps can be up to 400% efficient. Depending on model and outside temperature. This is because hear pump is not generating heat its just moving it from one place to another. In AC mode from inside to outside of house and in heating mode from outside to inside.