Ethanol Fireplaces Ethanol fireplaces don't 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 don't produce smoke or ash, and need minimal maintenance. Find out more about ethanol fireplaces. 1. https://fireplacesandstovesuk21985.jts-blog.com/29519010/don-t-make-this-silly-mistake-with-your-bio-ethanol-fireplace