Abstract: A steam generation device comprising two cylinders, an inner and an outer cylinder, the inner cylinder forming a combustion chamber into which streams of air, water and fuel are released under computer control. Water is introduced under pressure into the plenum formed by the inner and outer cylinder and exits into the combustion chamber top holes drilled at an angle into the inner cylinder. Using a model of the combustion process and the flame's gas envelope pressure, the computer maintains combustion and steam production without extinguishing the flame, in response to demands for differing quantities of steam volume, temperature and pressure.