Early examples (estimated at 3,600 years) of devices that heat water surrounding a fire include samovar tea urns from Eastern, Central, and Southeastern Europe, as well as the Middle East.
[5][1][2][3] George Marris & Co of Birmingham (Brass Founders, Stampers and Piercers) first come to light in the 1800s making iron bedsteads and brass/copper fern pots.
The original concept of the volcano kettle appears to have been Harts, but he may have been inspired by traditional Mongolian and Chinese hot-pots which had a central chimney.
The first Sirram Volcano Kettle was manufactured out of spun copper with brass handles/fittings, it appeared in the late 1920s and was eventually covered by Registered Design No.
Magazine') test of 21 camp stoves which concluded "For boiling water quickly or washing up there is nothing to beat a Sirram Volcano, either at home or abroad".