paul wheaton wrote:
The casserole door is, I think, a design that needs further optimization. And I think the first optimization is that we need to get away from batch box stuff.
The
Honey Do Carpenter discovered that having a hollow door with the primary air being drawn in the top of the door and drafting the fire at the bottom of the batch box solved the problem of the hot door and preheated the primary and secondary air. The cook top gives a view of the flames so the door view is not necessary.