New idea of making smoke free wood stove from Bain Marie Pots

I built smokeless wood stove for the camp. Used two different sized BMP (Bain Marie Pots) and it works great! for inner can ID 16.5, OD 18.7, H 19.0 (cm) for outer can ID 18.0, OD 20.1, H 21.0 (cm)