Great pie Chau! Interesting discussion on heat sources. I have been enamored by the idea of coal pizza, but my dream was shattered when I walked into an anthracite coal oven pizza joint in Northeastern PA. I observed the oven, and had to search for the heat source in the back left. There were a few coals burning, and they gave off no aroma. I remember one of the advantages of anthracite was that it was clean burning - little smell, right? I asked the owner the deck temp - he measured with his IR gun, and reported 495. My pie was an 8 minute bake, and the crust was dead in the water. Flat, but crispy. Topping heavy and tasty, crust a dog. As I walked out weeping, I thought they used coal in NY for one reason, clean and cheap heat. My dream of a coal oven at home evaporated. I am using my steel plate, with great NY pies. I think a wood fire oven is the next step because the wood does burn dirty. That smoke and heat does help the final product. A lot of work, but adds magic. And your pies are a wonder! Mark