solukaasu
Solukaasu is a term with historical usage referring to a type of gas used for lighting or heating. Historically, the term might have been associated with various combustible gases produced from organic matter or through industrial processes. In some contexts, it could have referred to coal gas, a fuel produced by the destructive distillation of coal. This gas was a significant source of illumination in cities during the 19th century, powering streetlights and lamps in homes and public buildings.
Alternatively, "solukaasu" could have been used more broadly to describe other types of flammable gases generated