L tube feed to 1 brick box dry stacked rocket stove

However, the burn chamber does get above 500 deg C as my temperature errors over this measurement.

The cooking plate only really gets hot where is directly above the gases, and even though those gases do pass over and down chamber 3, the plate in this part does not really get hot. The plate might be shedding heat too quickly.

I still need some secondary air, and insulation of the second chamber to see if I can get the temperatures up. And maybe add another layer of bricks in that area to make it a 1.5 brick box stove.