No. Propane fireplaces are more environmentally friendly than electric fireplace units. The electricity used in electric fireplaces is often generated by coal-fired power plants which generate significant CO2 emissions, along with other pollutants. Plus, propane fireplaces produce fewer particulate emissions and less carbon monoxide compared with wood-burning fireplaces. In fact, jurisdictions in some parts of the country restrict the use of traditional wood-burning fireplaces during certain times of the year due to their detrimental air quality impact.