Abstract: A boiler device comprises a cold water input for supplying cold water through a feed water heating system. A bottom ring is spaced from and positioned below the heating system for producing uniform distribution of feed water. A delivery pipe supplies heated water from the heating system to the bottom ring. The delivery pipe extends from the heating system to a point spaced from and above the bottom ring. A generating coil system is provided above the bottom ring for heating water supplied from the bottom ring and producing steam. A superheater coil system is provided above the generating coil system for superheating steam. Incline headers between the generating coil system and the superheater coil system supply steam from the generating coil system to the superheater coil system. A standpipe supplies superheated steam from the superheater coil system to an upper ring above the superheater coil system for storing superheated steam.