Impressive Rocket stove that really burns the wood with vortex

[mart85 (Mart Hale)]

サイクロンバズーカ2015（3次燃焼サイクロンロケットストーブ）～Tertiary combustion vortex rocket stove

If you watch this video to the end it is a marvel to watch how the air interacts with the air as it comes out the chimney.

[k_vanlooken (Koen Van Looken)]

Yup… gasifier principle… cheminey effect… very clean burning…