Make sure your ventless fireplace stays fueled with the Moda Flame 1 qt. Bio Ethanol Fireplace Fuel - 9 Bottles. Nine single-quart bottles of bio-ethanol fuel are included in this set, sure to keep you toasty all winter long. Bio-ethanol fuel is made from 100% denatured alcohol and produces flames that are odorless, smoke-free, and without any ash byproduct. The fuel features an added bitterant to deter young children from ingesting it.