Many people don't care about power consumption precisely because it becomes heat in the room. They live in places where the need for heating is bigger than the

Many people don't care about power consumption precisely because it becomes heat in the room. They live in places where the need for heating is bigger than the need for air conditioning. In my experience, a ~500 W gaming PC does not generate any noticeable heat unless you use it in a small room behind a closed door. A 1450 W vacuum cleaner does, so I guess heat becomes significant somewhere around 1 kW of sustained power.