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Electric Fireplaces in the Wall Since they do not require venting or chimneys electric fireplaces that are wall-mounted are much more simple than wood or gas fireplaces. Many homeowners can install these fireplaces on their own in an afternoon. However, some installations might require an electrician to connect the electrical power. Check the installation instructions for your fireplace or the dealer for advice. Also consider whether you want it to be recessed or hung from the wall.