| 48 / | HD | GAS: HEATING AND ILLUMINATING |
|
| 61 | DF | GENERATORS {4} |
| 62 R |  | .~ Cupola {18} |
| 71 | DF | .~.~> Coal, oil and water |
| 72 | DF | .~.~> Coal and oil |
| 73 | DF | .~.~> Coal and water |
| 76 | DF | .~.~> Producers |
| 77 | DF | .~.~> Coal |
| 78 | DF | .~.~> Water {3} |
| 85 | DF | .~.~> Carbon monoxide |
| 75 | DF | .~.~> Oil and steam injected |
| 63 | DF | .~.~> Air and steam injected {1} |
| 65 | DF | .~.~> Electric |
| 66 | DF | .~.~> Rotary bottom |
| 67 | DF | .~.~> Water jacket {1} |
| 69 | DF | .~.~> Water-seal pit |
| 74 | DF | .~.~> Refractory filling |
| 85.1 | DF | .~.~> Fuel agitating {2} |
| 86 R | DF | .~.~> Chargers {1} |
| 87 | DF | .~.~> Accessories |
| 62 A | DF | .~.~> Partial combustion carburetor |