NOVELTY - The structure comprises a motor that moves carrier box between two or more positions. The igniters (39) are provided for igniting the fuel cells (220). A snuffing plate (355,360) is provided for snuffing out flame emanating from fuel cells. The carrier box is adapted to be positioned by motor maintains fuel cells in a first position when igniting, and a second position when burning. The carrier box is adapted to be positioned by motor to place fuel cells in a third position when snuffing fuel cells.    USE - Mechanical structure for use with ventless fireplace (claimed).    ADVANTAGE - The mechanical structure seek to provide an improved alcohol gel fireplace system with enhanced safety and convenience features. The fireplace system automates many of the tasks normally performed by the user, such as opening the cartridge, lighting, and snuffing the flame, thus reduces the operating burden on the user while further enhancing safety and convenience. Once the flame is extinguished, mechanisms preferably snuff and seal the fuel cells to retain any remaining alcohol gel fuel, prevent any unpleasant odor from escaping into the ambient airspace, and retain the fuel cells for a time allowing for the temperature to reduce to a level safe for a user to touch and remove them. When burning, it is better for the cartridge to be as high as possible without being visible, in order to maximize the visual display of flames and minimized the amount of heating of the fireplace structure or mechanical unit that result from the flames. The gel pack and fireplace feature a sealing port allows convenient and safe refilling and protects against spills.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a ventless fireplace.    DESCRIPTION OF DRAWING(S) - The drawings show a cross sectional view of the components of the fireplace and side view of the burn module in the off position.    Igniter (39)    Fuel cell (220)    Elevator (310)    Elevator cavity (315)    Snuffing plate (355,360)