German army heater, made of stamped steel, brass and porcelain burner, the cover is stamped with warnings against the use of gasoline or fuels. Dated in 1942.
Its use was to heat the battery and engine of a vehicle when it had problems to fix in winter. The heater can run on diesel fuel or even on Coleman stove fuel. These heaters were often used for other types of heating, such as heating ditches, tents, bunkers.