My Samsung tumble dryer recently decided to let out the invisible smoke of life. It was a basic vented model, using electric heaters to dry the clothes. It was connected to a 240V 30A circuit breaker. Below is its power consumption for a typical load:

The total power consumption was 2.58kWh.

So I got a new heat pump model, that operates on a very different principle. It basically warms air from the outside via the condenser coils, uses that to extract moisture from the clothes but then, instead of expelling it into the environment, cools down that air via a refrigerant in the evaporator coils and catching the condensed water in a tank. This process is slightly slower but much more efficient. How much? See for yourself:

The total power consumption was 1.29kWh.

The machine even connects directly to the 120V/15A circuit. Pretty cool.