A direct-vent fireplace is a sealed fireplace system. It is designed for installation into a wall or mantel. The Small Loft Series Direct Vent Fireplace features a linear burner and a reflective black liner allowing the flames to flicker, dance and reflect inside the sealed combustion chamber. The millivolt valve with on/off switch will allow your fireplace to operate even during a power outage as no electricity is required to provide heat.