Principle of nine-cavity fierce fire gas stove

The fierce fire stove adopts the principle design of negative pressure in the inner container, upper ignition, downward ventilation, mechanical pressurization, forced combustion, four-zone hedging, fire superposition, rotating airflow and jet flame.

Using coal, firewood and crop straw as fuel, it burns directly in the furnace (outside), achieving many breakthroughs such as "diversity and compatibility of burning materials", "smokeless, less dust, smokeless and choking" and "saving coal and firewood by more than three quarters (boiling five kilograms of water in seven minutes, which is twice as efficient as liquefied gas stoves)".