I was wondering if anyone has tried to make a Incubator from something ceramic. I have a flue from a fireplace that I was thinking about using. It would take a while to heat up but once it got going it could potently hold an even heat and would not cool down like a cooler when opened, it would recover faster. It is a high fire clay stoneware body so it should clean up nicely and not wick water. It would be fire proof. I have the tools to work with stone so cutting and drilling holes should not be a problem. The outside could be in covered in insulation. Do you see any down sides I haven’t considered yet?