Does a space heater consume a lot of energy?

Generally speaking, yes. A space heater consumes on average 2000 W, whereas a fixed radiator consumes 2 times less. Indeed, space heaters must have a certain inertia, that is to say a certain capacity to store heat and then release it slowly, by radiation. This inertia depends on a heating process of a liquid body (as for an oil-filled radiator) or dry (for example a ceramic-core radiator) which can, in some cases, be long and energy-intensive. Nevertheless, our devices have been designed to be as economical as possible, with the addition of automatic functions.