Ethanol Fireplaces Ethanol fireplaces don't require chimneys, flues, or gas lines, which makes them easy to install in condos and apartments. These fireplaces that are vent-free are available in freestanding or wall-mounted models. They also do not produce smoke or ash, and require little maintenance. Learn more about ethanol fireplaces. https://fireplaces46676.ja-blog.com/30263348/20-myths-about-bio-ethanol-fireplace-busted