Not necessarily. In the bad old days folks would draw a continuous kW or more in the evenings just for lighting. 8kWh for an evening of lighting, or 1kWh for dinner, and 1kWh for lighting.

As for gas or oil boilers - oil is uncommon except in rural areas - gas is far more common but not as ubiquitous in the past as you’d think - many folks heated their homes with resistive electric radiators or IR heaters - so a heat pump is a huge efficiency win.