Ethanol Fireplaces Ethanol Fireplaces do not require chimneys, flues or gas lines. This makes them very easy to install, especially in condominiums and apartments. Vent-free fireplaces are available in tabletop, wall-mounted or freestanding models. They also don't produce smoke or ash, and need little maintenance. Learn more about ethanol fireplaces. https://stoves76420.weblogco.com/30289388/bio-ethanol-fireplace-a-simple-definition