An example of the combustion engine includes a central chimney having a bottom end located adjacent a combustible fuel mixture of water and alcohol. A turbine has a top side with top side hole positioned around the chimney. A generally conical turbine insulator is positioned above the turbine and around the chimney. A generally conical deflector positioned above the insulator and around a top end of the chimney. The generally conical deflector is inverted relative to the generally conical turbine insulator.

A film evaporator burner arrangement (1) is provided, having: a combustion chamber arrangement comprising a combustion chamber (2) for the conversion of a fuel-air mixture with the release of heat, which extends in the axial direction along a longitudinal axis (Z); a combustion air supply (5) for the supply of combustion air, which is configured such that the combustion air is supplied with a tangential flow component to at least one combustion air inlet (8) of the combustion chamber arrangement; a film evaporator surface (4) for evaporating liquid fuel originating from a fuel film (10), which is arranged at a rear wall (3) axially rearward of the combustion air inlet (8); and a fuel supply (9) for the supply of liquid fuel to the film evaporator surface (4).

The invention relates to a stove that operates using liquid fuel of alcohol and water that can be diluted to concentrations as low as 50% alcohol by volume.