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Electric Fireplaces in the Wall Electric fireplaces mounted on the wall are simpler to install than gas or wood ones, as they don't require venting or chimneys. Most homeowners can install them on their own over the course of a weekend, however some installations require an electrician for the electric connection. Before you start, make sure that the fireplace is a good fit within the space. You can also check the instructions of your model or ask a professional for advice regarding installation