Help required with mini rocket stove

What a great project! Thank you for taking the time and making the effort to get this right. And, what a lovely stove you have as a result! Several years ago I was trying to live in a 3 x 3 meter house and wanted a tiny stove just like this, but didn't have the skills or imagination to work it out. Good on you!

Thank you

Hello! The exhaust tube out of your van need to be pretty high... 1 1/2 meter or 2...