Ethanol Fireplaces Ethanol fireplaces don't need chimneys, flues, or gas lines, making them easy to install in condos and apartments. These vent-free fireplaces are available in freestanding models, wall mounted and tabletop models. They also create no smoke or ash, and require little maintenance. Learn more about ethanol fireplaces. 1. https://fireplace10864.webdesign96.com/30724871/bio-ethanol-fireplace-a-simple-definition