1)
For the baffle, I have some old T-posts i was thinking of cutting for the braces to run across and rest some metal on them. I also have an old refrigerator that has been needing to go to the dump. Would a piece of metal cut from the refrigerator work for the baffle if I cut two pieces a little larger than half the opening so I can overlap them and slide them to adjust airflow. The main question, is that a safe metal, or is it coated in something?
2)
Will I need to close the chimney off to cold smoke?