When you make a coil, you have to pay attention to:
The heat capacity (tells you how much energy you need to heat the wire at a specific mass of 1 °K (°C).) Your coils have a heat capacity of ~ 208 mJ/K.
Coils of this mass need ~ 48W to increase their temperature by 230 °C within 1 second. Without cooling. When the wire gets warm, it takes time to cool down. When you take several clouds in a row, each one will be more hot. Fluid transport must be sufficiently efficient.
Once you have warmed up the coils, they must give heat through the surface they are in contact with, so the surface should be as large as possible.
Want to have a good taste, so to start with:
- reduce the inner diameter of the coil from 3.5 mm to 3 mm.
- adequate power.
- If fluid transport is too small, thinner wire and less power.
- The coil is to be close to the air hole
Or
- twisted pair of three wires (for example 29G). The mass is the same, but the surface is almost twice as large.