No Welding, No Casting - DIY Rocket Stove

I'm trying a different approach to building a Rocket Stove as compared to most of the builds you find on YouTube. Instead of welding metal pipes or casting refractory cement I built it out of vermiculite board.

Major inspiration to create my own design came from:

Loz Harrop Rocket Stove playlist:
https://www.youtube.com/playlist?list=PLt8pPbBqBmRgCT8hPGMqnoDpBPVR9R6Vj

Peter van den Berg's Batch Box Rocket:
https://batchrocket.eu/en/workings

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