Ethanol Fireplaces Ethanol fireplaces do not require chimneys, flues or gas lines, making them easy to install in condos and apartments. These vent-free fireplaces come in freestanding models, wall mounted and tabletop models. They also create no smoke or ash, and need minimal maintenance. Learn more about ethanol fireplaces. 1. https://stoves54208.ageeksblog.com/29325884/10-key-factors-about-bio-ethanol-fireplace-you-didn-t-learn-in-school