|Theoretical Furnace Layout|
Here are a couple of images Richard took during the early phase of his build:
|Bottom layer of the sods, indicating the internal diameter|
|Bottom stone construction - gap for setting the tuyere|
There are a couple of possible variations for installing the tuyere. As set up now, the most likely is an insert style, using either the forged copper or standard ceramic tubes. High temperatures will cetainly effect the heavy stone lintel above the gap.