Recent 13+ Old Fireplace Insert
Recent 13+ Old Fireplace Insert. Both gas fireplace inserts and prefabricated fireplaces and chimneys are built with safety in mind. Fireplace inserts are perfect for homeowners who have a traditional fireplace but are. These electric units are available in three types and offer remarkably realistic flame effects. Wood inserts are fireboxes designed to be inserted into old, low efficiency open hearth fireplaces to increase heat transfer, efficiency, and reduce emissions.