EcoZoom's Zoom Versa, model ZV-VMC26, is versatile because it can burn wood, dried biomass or charcoal. You use the top door for wood and biomass and the bottom door for charcoal and to control airflow. Like the Zoom Dura, the Zoom Versa features an abrasion resistant and durable ceramic combustion chamber with a 10 cm in diameter vertical section that forces the gases to mix with the flame, decreasing harmful emissions and adds a refractory metal liner to the inside of the combustion chamber that protects the ceramic insulation, increases the life of your stove, and improves combustion efficiency. This stove features our new hinged combustion chamber doors enabling for an effortless conversion from wood to charcoal fuels. Both the main combustion chamber door and the damper door (bottom door) have reinforced metal frames and have hinges that serve to securely close the doors and regulate airflow. The Zoom Versa also has a durable, reformulated 6-pronged cast iron stovetop that improves heat transfer for all pots including round bottom pots and woks.