Never use felt near heat. Polyester felt will melt, and wool is animal hair with chemical dyes, which you don't want getting hot and smelling like warm hair with your food, Bleah! I do use felt for batting in my panty purses, and for other purse type objects as a stiffer batting to help give them shape. Since the felt is enclosed, it doesn't pill when washed because there is no friction. I don't think I will try it for a useable quilt, but for wall hanging, it would help it hang straighter, and hold shape in case it must be cleaned.