Unique air outtake :  Use the Simulate tools to analogy the airflow in the combustion chamber, to adjust the air passages to make this stove more efficiency and more powerful without smoke. With the special support design, no matter the twigs enters the combustion chamber at any angle and in any position, it can be supported by those triangular support points, leaving a gap for fresh air to pass through, which can significantly improve combustion efficiency and reduce smoke. And even if the twigs become charcoal, it can still maintain a higher heat output power. And what’s more is FlameCube would be better able to handle the moisture twigs too.