This option allows you to disperse heat from the fireplace to another room in your home. Heat is directed to another location through flexible ducting and finished off with a standard floor grate. Heat-Zone-Gas uses its own fan system to draw the air from around the firebox and push it into an area where the warmth is more desirable at the time. This is the perfect answer for those wanting a flexible heat source for more than one room without maintaining a higher setting on the furnace.