A fireplace and a fireplace insert are two distinct heating appliances with their own unique features and benefits.

A fireplace is typically an open hearth or firebox that is built into a wall or masonry chimney. It is designed to burn wood or other solid fuels and radiate heat into the surrounding room. Fireplaces are often considered to be a decorative feature, as they provide an ambiance and atmosphere that cannot be matched by other heating sources. However, they are not the most efficient heating source and can be costly to operate, as much of the heat is lost through the chimney.

A fireplace insert, on the other hand, is a self-contained heating appliance that is designed to be installed into an existing fireplace. It is essentially a fireproof box made of steel or cast iron, with insulated glass doors and an air intake vent. Fireplace inserts are available in a variety of fuel types, including gas, wood, and pellet, and they are highly efficient heating sources. They can help reduce energy bills and provide a more consistent and controllable heat output. Additionally, because they are closed units, they are safer to operate and produce less indoor and outdoor pollution than traditional fireplaces.

In summary, a fireplace is a traditional, open hearth or firebox that is built into a wall or masonry chimney, while a fireplace insert is a self-contained heating appliance that is designed to be installed into an existing fireplace. Fireplace inserts are generally more efficient, controllable, and safe to operate than traditional fireplaces, while still providing the warmth and ambiance of a traditional fireplace.