| 摘要 |
A fuel burning boiler comprises a water holding shell of sheet steel having front and rear walls defining axially aligned openings. An insert body passes through the openings and is affixed thereto, the water being held between the shell and insert body. The insert body includes a cast iron casing providing a combustion chamber in the interior thereof, defining ducts for combustion gases of the fuel burnt in the combustion chamber and a smoke box at the rear wall and in communication with the ducts for receiving the combustion gases therefrom, and a sheet steel casing forming a skin over the cast iron casing and tightly fitting thereover. The sheet steel casing is fluid tightly connected with the front and rear walls of the shell around the rims of the opening therein. |
