| 122 / | HD | LIQUID HEATERS AND VAPORIZERS |
| 235.11 | DF | WATER TUBE {52} |
| * | DD | .~ Rearwardly declined {3} |
| * | DD | .~.~ Over firebox {1} |
| * | | .~.~.~ Front and rear header {3} |
| 298 | DF | .~.~.~.~> Horizontal-longitudinal drum |
| 299 | DF | .~.~.~.~> Transverse drum |
| 300 | DF | .~.~.~.~> Tubes beyond side wall |