Montgomery Wards Freestanding Mid-Century Burnt Orange Cone Fireplace with Cast Iron Coal Grate 62 x 32" keywords: Preway mid century modern. These fireplaces can be used with wood, gas, gel or electric log sets. (Converting this fireplace into a wood burning stove is not recommended.)Many people are finding the new vent-free gas or gel ethanol fuel logs sets to be very attractive because they don't require connection to a chimney so you can save on installation cost but still have a "real fire" look and feel.