I remember my grandma having one very old fashioned one. It just had some big wooden rollers with no heat. I never got to try it, but I remember my mom raving about how wonderful it was. I remember using the gas iron though. My little sister had these cute fluffy nylon dresses, & one time when I was ironing it , a flame shot out the side, & burned a hole into it. After that I only used the ones we heated on the stove. I think they were called "sad irons".