n Firebox: The firebox encapsulates all the components that make up the fireplace; it's the frame and everything inside. For gas fireplaces, code allows the firebox to be either raised from, or flush with, the floor.
n Grills: Decorative grills are the esthetic treatments on the firebox. Often on gas fireplaces, these grills are the brass vents above and below the glass. They can be changed easily, and a variety of options are available.
n Hearth: Raised hearths are typically reminiscent of wood fireplaces, where a raised hearth was required to meet code. Though not required for today's gas fireplaces, a raised hearth remains a stylistic choice that can be selected when designing a fireplace.
n Insert: A gas insert is a complete unit that can fit into an existing wood-burning fireplace. It is important to have your wood fireplace thoroughly inspected and your insert installed by a certified fireplace consultant.
n Keystone: A decorative focal point centred above the firebox.
n Log sets: Gas fireplaces come with a variety of log pattern options. Patterns vary based on the type of wood emulated, and the number of logs that make up the set.
n Refractory liner: A brick outline refracting liner can be used inside a gas firebox to give the illusion of brick surrounding the flame.