Charcoal instead of gas? [Archive] Largest ...
Not to mention that for charcoal you need good airflow so a lot of the hot air is going up out the lid cover vent it still seems to work best to have the crucible buried in the charcoal (look at cupolas which melt iron the iron is actually sitting ON the charcoal or coke no crucible at all!) but you could try it if you want to see if it ...