126 / | HD | STOVES AND FURNACES |
* | DD | STOVES {3} |
58 | DF | .~ Heating {18} |
67 | .~.~ Hot air {5} | |
68 | DF | .~.~.~> Magazine |
69 | DF | .~.~.~> Revertible draft, base-heating |
72 | DF | .~.~.~> Tubular air heaters |
70 | DF | .~.~.~> Internal air chamber |
71 | DF | .~.~.~> Central air tube |