The 3D fast stove is basically not a technical concept, but more like a propaganda concept. The original explanation in the manufacturer's promotional materials is to increase the thermal efficiency to more than 60% while maintaining the "super firepower" of 4.0kW (in fact, 4kW is the basic firepower of the cooker).

What does it mean to achieve a thermal efficiency of 60%? According to the national standard GB 30720-20 14 "Limits and grades of energy efficiency of domestic gas cookers", it can be known that the first and second thermal efficiencies of desktop cookers and the first thermal efficiency of embedded cookers must meet this requirement. In other words, 60% is the minimum threshold for some first-and second-class energy-efficient cookers (see the standard screenshot below). It was originally a product that had just reached the standard. Let's change the concept of 3d rapid fire to guess, that's all.