| 122 / | HD | LIQUID HEATERS AND VAPORIZERS |
|
| 235.11 |  | WATER TUBE {52} |
| 235.12 | DF | .~> Wall structure |
| 235.13 | DF | .~> With fuel burners having posts and tuyeres |
| 235.14 | DF | .~> Tube structure |
| 235.15 | DF | .~> Headers and connections |
| 235.16 | DF | .~> For plural fluids |
| 235.17 | DF | .~> Having baffles |
| 235.18 | DF | .~> Having seals |
| 235.19 | DF | .~> D-type tube {1} |
| 235.22 | DF | .~> Wall loop |
| 235.23 | DF | .~> Having specific tube patterns |
| 235.24 | DF | .~> Screens {1} |
| 235.26 | DF | .~> Having slag and ash disposal |
| 235.27 | DF | .~> Locomotive-type |
| 235.28 | DF | .~> Having rotary flame |
| 235.29 | DF | .~> Having forced circulation system |
| 235.31 | DF | .~> Having specific intenal drum and head structure |
| 235.32 | DF | .~> With combustion |
| 235.33 | DF | .~> With convection zone regulation |
| 235.34 | DF | .~> With parallel multiple fireboxes |
| 235.35 | DF | .~> With serial multiple fireboxes |
| 238 | DF | .~> Offset firebox |
| 239 | DF | .~> Superimposed firebox |
| 240.1 | DF | .~> Having plural fireboxes {2} |
| 241 | DF | .~> Firebox in drum |
| 242 | DF | .~> Capillary {1} |
| * | DD | .~> Coil or loop {1} |
| 247 | DF | .~> Coil {2} |
| 253 | DF | .~> Cross {3} |
| 258 | DF | .~> Downflow |
| 259 | DF | .~> Drum type |
| 260 | DF | .~> Flat {1} |
| 262 | DF | .~> Horizontal {2} |
| 265 | DF | .~> Inclined |
| 266 | DF | .~> Internal fire tube {5} |
| 273 | DF | .~> Longitudinal upper drum {1} |
| 275 | DF | .~> Loop {3} |
| * | DD | .~> Over bridge wall {3} |
| * | DD | .~> Over firebox {2} |
| * | DD | .~> Rearwardly declined {3} |
| * | DD | .~> Rearwardly inclined {1} |
| * | DD | .~> Separate banks {1} |
| 305 | DF | .~> Spur {8} |
| 321 | DF | .~> Standpipe {2} |
| 324 | DF | .~> Straddle {2} |
| 331 | DF | .~> Transverse horizontal drum |
| 332 | DF | .~> Vertical {10} |
| 353 | DF | .~> Water grate {1} |
| 355 | DF | .~> Zigzag {3} |
| 237 | DF | .~> Magazine |
| 236 | DF | .~> Fluid fuel |
| * | DD | .~> Headers {1} |
| 365 | DF | .~> Drums and couplings |