its a multistage blow dryer , unfortunately only high and low and no in-between.
The problem i am having is the fact that the coals are falling into the tube and i have nothing to really block it without blocking the airflow.
As for the grill itself , i managed to coat the bottom and walls with "fireproof" concrete (2part portland , 2 part sand , 1 part pearlite , 1 part clay)
I have no idea if this is going to last me long . I would make my own real forge but i dont have any welding supplies or training. Would a small cheap gas forge be better?