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Ethanol Wall Fireplace Ethanol wall fireplaces can be set up inside or outside the home. They are fueled by liquid bio ethanol and burn without smoke, odor or ash. They do supply extra heat to a space. The amount of heat generated varies depending upon the model of fireplace you select. Before starting to install your ethanol fireplace, please check that it lies far from vents, doors and windows. No Smoke Vent Unlike gas or propane fireplaces, which require a chimney and connect to a fuel line, ethanol fires are self-contained. They burn liquid bio e