Start with the furnace heat marks and the crew’s pause-and-return log. It is the source used to make a decision about whether the new fuel mix can cut smoke without requiring a longer hot shift; it is not the decision itself. The rule only works if the source describes the conditions at the north furnace aisle in the communal ironworks.
The latest count is 40 cooling pauses per completed charge; the prior file listed 42. The docket has returned for review with the exceptions and unresolved objections attached. The difference is a signal to check, not a verdict about who is right.
The disputed point is practical: The mill measures fuel by charge; the crew says time spent clearing a slow draft is missing from that total. One side relies on the posted total, while the other points to a soot line on the draft door that shifts when the intake starts to narrow.
The risk of reading the file too broadly is that an entry becomes a conclusion. Maela Dorn checked the furnace heat marks and the crew’s pause-and-return log against the field notes. The method is to follow the task through a complete shift, including the cleanup after the bell; it confirms the entries, but not every interpretation attached to them.
Next: The next trial will record both charge time and the minutes spent clearing the intake. A useful update will publish the method, exceptions and review date with the number.
