Electrical household appliance comprising a base having a gravity-fed boiling chamber

An electrical household appliance comprising a base for producing steam having a steam generator comprising a boiling chamber and a liquid reservoir to supply the boiling chamber by gravity, the liquid flowing by gravity from the reservoir toward the boiling chamber until the liquid level in the boiling chamber reaches an equilibrium level at which the liquid level in the appliance prevents air from entering the reservoir, the boiling chamber comprising a steam outlet through which steam can escape toward a work tool and a communication opening connected to a pipe having an evacuation opening closed with a removable stopper,

• wherein the pipe includes a scale-collecting container that is removable through the evacuation opening, and
• wherein the pipe is supplied with liquid coming from the reservoir through a supply duct that leads to the pipe at the level of an inlet opening.