It does not utilize wood so they are against the environment. Use of an electric fireplace doesn't produce any pollutant or harmful chemicals. There is no release of smoke from this kind of fireplace so there is no need for a chimney or venting system.
They are the most flexible and versatile choice of home heating systems. They can perfectly fit almost everywhere in your house as long as there is adequate spacing to safely and seamlessly install the vent pipe. So, with wood stoves, you can zone-heat everywhere in your house regardless of the size and shape of the room.