Screw furnace
The screw furnace is an invention of Rudolf Steiner . The furnace, like the cannon furnace, is cylindrical, but the flue moves in a spiral shape from the combustion chamber to the chimney . Together with Friedrich Justin Bertuch, Steiner described the structure and function of the stove in the Journal des Luxus und der Moden of 1791 . These ovens were u. a. equipped with Toreutika , such as. B. in the workshop of the Weimar court sculptor Martin Gottlieb Klauerwere designed. This stove, initially created for living rooms, was characterized by greater economic efficiency, at least in terms of its objectives. But this was soon questioned. As early as 1805, in a book about saving wood during the firing process, preference was given to the column oven (probably referring to the cannon oven) over Steiner's screw oven.