This time, I attached a blade (feather) to the tornado of the secondary combustion stove. In the previous video, the secondary combustion hole was bent and the fire ring was used to create a tornado. However, if the firepower weakens or is blown by the wind, the tornado becomes unstable and the axis shakes or collapses.
I also had an issue. This time, we aim to assist and stabilize the tornado by rotating the updraft of the stove with a blade to address such a problem.

■ Contents

00:00 Introducing the blade
00:26 Introduction to the previous video
01:12 Production of the blade
03:38 Confirmation of secondary combustion tornado
04:20 Powerful fire only
05:03 Strong firepower with blade
05:58 Weak firepower with blade
06:32 Weak firepower only firing
07:06 State after use & summary
　

■ Blade material

paint can lid

■ Blade production

Draw the blade and trace it on the lid
Processing with a drill and metal cutting scissors


■ Checking the effect of the blade

Flame comparison between fire ring only and fire ring + blade

1. When the secondary combustion flame was strong, both were tornadoed beautifully, and the difference in rotational force was not recognized with the naked eye.

2. When the secondary combustion flame is weak, the center of the flame rotates without blurring with the fire ring + blade. On the other hand, with only the fire ring attached, the center of the flame was blurred and the tornado became unstable.
As mentioned above, the effect of stabilizing the tornado was recognized with the blade.
However, you can enjoy the flickering of flames and changes in rotation just by installing a fire ring, so you can enjoy a wonderful tornado with this.