I think it is a Hert/Hearth. Not so sure though so dont take my word for it.
In general, no. There are some wood stoves that are called fireplaces (free standing metal) but they are not fireplaces. A fireplace is permanently built into the structure.
The corner of a fireplace is called an Inglenook!
The metal support used in a fireplace is called a "fireplace grate." It is placed inside the fireplace to hold logs and allow airflow for a better burning fire.
The top part of a fireplace mantle is called the mantel shelf. It is the horizontal ledge that extends across the top of the fireplace to display decorative items.
In Scotland and elsewhere an inglenook is a alcove beside a fireplace.
The structure around a fireplace is commonly referred to as the "fireplace surround." This can include various components like the mantel, which is the horizontal shelf above the fireplace, as well as the hearth, which is the floor area in front of the fireplace. Together, these elements enhance the aesthetic appeal and functionality of the fireplace area.
The first gas fireplace is unknown to me but the regular fireplace was made by Benjamin Franklin and it was called the Franklin stove
A fireplace has something called a flu. So the answer is because it has the flu! :)
It's called a hearth.
The shelf above a fireplace is commonly referred to as a "mantel." It serves both decorative and functional purposes, providing a space to display items like photos, clocks, or decorative pieces. The term "mantelpiece" can also refer to the entire structure surrounding the fireplace, including the shelf.
The shelf over a fireplace is called a mantle.
It's called a fireplace bellow I believe.