Steam generator

A steam generator comprising:

• a water storage chamber configured to store water therein, a first heating portion configured to heat water stored in the water storage chamber and to generate steam, the first heating portion located proximate to a vertical center of the water storage chamber, a water supply device configured to supply the water storage chamber with water, a controller, a steam spout port that ejects steam generated in the water storage chamber therethrough, and a temperature detector configured to detect a temperature in the water storage chamber,
• wherein the water storage chamber includes a front surface and a back surface facing each other within the water storage chamber, and a first distance from the front surface to the back surface is greater at a first location below the first heating portion than at a second distance from the front surface and the back surface at a second location, the second location intermediate to the first heating portion and the first location,
• wherein the controller is configured to calculate a water level in the water storage chamber depending on the temperature detected by the temperature detector, and
• wherein the controller is further configured to perform a water supply control of the water supply device during steam generation based on the calculated water level, such that a water volume from the first heating portion to a water surface is smaller than a water volume from the first heating portion to a bottom surface of the water storage chamber.