| 126 / | HD | STOVES AND FURNACES | 
| * | DD | STOVES {3} | 
| 58 | DF | .~ Heating {18} | 
| * | DD | .~.~ Liquid or gaseous fuel {3} | 
| 85 R | DF | .~.~.~ Gas {6} | 
| 92 R |  | .~.~.~.~ Incandescent fire grate {4} | 
| 92 AC | DF | .~.~.~.~.~> Radiant | 
| 92 A | DF | .~.~.~.~.~> Electric radiant | 
| 92 B | DF | .~.~.~.~.~> Radiant with reflector | 
| 92 C | DF | .~.~.~.~.~> Radiant enclosed by furnace shell |