We have 4 settings,
1 - almost everything
2 - picky polyesters and bad bleeders, which we see less and less of every year, Sanmar poly's rule!
3 - Non-woven bags
4 - Hats with plastic closures (snap-backs)
That's part of the beauty of a gas oven with good airflow, setting # 1 will cure any ink deposit and we have never scorched a shirt in the oven.
(shameless plug for M&R Heatwave)