What is a bennett deep seat for in fireplace?

A Bennett Deep Seat is a type of fireplace grate designed to hold and support a fire within a fireplace. It consists of a deep metal box that is placed inside the fireplace, with a grate or bars at the bottom to allow air to circulate and support the burning of the fire. The deep design of the Bennett Deep Seat allows for a larger and deeper fire to be built, providing more warmth and ambiance to the room. It also helps to contain the fire and prevent embers and sparks from escaping into the surrounding area. Additionally, the Bennett Deep Seat can help to protect the fireplace from damage caused by excessive heat and flames.