Fireplace vs. Insert
A lot of folks have trouble distinguishing between a fireplace and a fireplace insert(insert). Fireplaces can be metal or masonry and have a chimney for ventilation. An insert is an appliance that fits inside of a fireplace that already exists. Inserts vent using a liner that fits inside the existing chimney. Inserts are usually used in a situation when a person has a brick fireplace that they would like to make more efficient or to make it look more aesthetically pleasing.