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Tips For Choosing an Electric Fireplace Insert For Wall In contrast to gas or wood fireplaces, electric models do not require a chimney or a flue. Instead, they plug into a wall outlet to produce the heat needed for your home. It is possible to install this insert into an existing fireplace or in the wall with a recess. Basic carpentry skills will be needed to frame the opening on the wall and drywall the area. Real Flame(r), Electric Fireplace, Wall Mounted/Recessed Insert Developed as an alternative to woo