Absolutely not, you could not use charcoal in a propane smoker, and do not try to use charcoal in propane smokers. There are numerous users tried to use charcoal in propane smokers. But they failed and were ashamed. Because it is a burner device in the gas grill and made multiple specifications to control the temperature. Unfortunately, if you are applies the charcoal in a propane smoker, then the possible chance that damaging the ingredient with ash.