A kettle, sometimes called a tea kettle or teakettle is a type of pot, typically metal, specialized for boiling water, with a lid, spout and handle, or a small kitchen appliance of similar shape that functions in a self-contained manner. Kettles can be heated either by placing on a stove, or by their own internal electric heating element in the appliance versions.
The first kettles were used in ancient Mesopotamia for purposes other than cooking. Over time these artistically decorated earthenware containers became more frequently utilized in the kitchen. In China, kettles were typically made of iron and were placed directly over an open flame. Travellers used the kettles to boil fresh water to make it suitable for drinking.
The word kettle originates from Old Norse ketill "cauldron". The Old English spelling was cetel with initial che- [t?] like 'cherry', Middle English (and dialectal) was chetel, both come (together with German Kessel "cauldron") ultimately from Germanic *katilaz, that was borrowed from Latin catillus, diminutive form of catinus "deep vessel for serving or cooking food", which in various contexts is translated as "bowl", "deep dish", or "funnel".
The development of kettles was in direct correlation with the evolution of the modern stove.
In the latter part of the 19th century, electric kettles were introduced as an alternative to stove top kettles. In 1893 the Crompton and Co. firm in the United Kingdom started featuring electric kettles in their catalogue. The early electric kettles were quite primitive as the heating element couldn't be immersed in the water. Instead, a separate compartment underneath the water storage area in the kettle was used to house the electric heating element. The design was inefficient even relative to the conventional stove-top kettles of the time.
In 1922, the problem was finally solved by Leslie Large, an engineer working at Bulpitt & Sons of Birmingham who designed an element of wire wound around a core and sheathed in a metal tube. As this element could be immersed directly into the water it made the new electric kettle much more efficient than stovetop kettles.