| 431 / | HD | COMBUSTION |
| 207 | DF | HEATED LINE SECTION FEEDS FLAME HOLDER {19} |
| 218 | DF | .~ Basin for burning liquid fuel heats feed line section {3} |
| 222 | DF | .~.~ Basin receives fuel from terminus of heated fuel line {5} |
| 227 | | .~.~.~ Basin encompasses vertical heated line section {2} |
| 228 | DF | .~.~.~.~> Line passes through basin to surrounding, descending discharge structure |
| 229 | DF | .~.~.~.~> Elongated basin parallel to fuel line |