Rikka Tavi

dear Panagiotis,
could you please specify the 6 inch oder 8 inch system - what is "system" in this context"?
Thanks!

Thank you Bob for your reply.
Our riser seems to be quite central. Underneath is a square fire box (bricks), also pretty central. Around it is the wall of bricks again.
Now according to the plan we have we should put some perlite/clay layer around it and we do not know how thick it should be and also how wide the gap..

Hello, we are in germany and have nearly completed our rocket stove. The heat raiser stack is set and the fire box at the bottom is set.
Now we need to put the perlite layer around the fire box.
However, one thing is still not clear to us from the pictures we got out of the manual:
How thick should be the perlite layer around the fire box at the bottom part inside the manifold?
Connected to that is the other question: how big should be the gap be between the perlite surface inside the manifold and the outer brick wall of the manifold, necessary for the air to reach the bench outlet?
Those dimensions are not clear to us...

Thank you in advance for any tips!