The Coleman stove/grill I bought 20 years ago finally went kaput. I bought another combo and love it as much as the first one.  I have never put a pot on the grill half (why would you put a pot on the grill when there is a burner?) and the grill works perfectly and does NOT melt. One star off because when turning the flame down, after you release the knob the flame goes up a bit, so more accurate control is needed.