| 432 / | HD | HEATING |
| 77 | ![]() | WITH WORK COOLING STRUCTURE {5} |
| 78 | DF | .~> Combustion feed air cools exiting work by contact {2} |
| 81 | DF | .~> Work holder having selectively usable heating and cooling structure |
| 82 | DF | .~> Entering and leaving work exchange heat |
| 83 | DF | .~> Work heat removed through heat transmitting wall {1} |
| 85 | DF | .~> Cooling liquid contacts work |