The hope is that by reducing the internal volume of the oven by several inches the design will be able to attain an internal oven temperature above 149 °C (300.2 °F)). This will entail adding more cob to the oven interior to decrease its dimensions; constructing a smaller Reflectix liner for the oven; and reducing and refitting the polycarbonate window and frame to create a tight seal with the Reflectix liner.