But a sphere section creates a circle, and if designed right that circle can cover almost the entire oven floor. Now mind you none of this actually matters because our rough matt yellowish fire bricks are not prefect emitters, and they do not produce perfect straight waves of radiation, they create diffused radiation like the sun on a cloudy day. If they did produce perfect radiation which oven would cook more even? Obviously the low dome oven with it's heat focused evenly over almost the entire oven floor. The hemisphere has many advantages as it is easier to build and more stable on top of the fact that the design has been proven many times over in great functioning ovens, but the even heat from a single point idea that gets thrown around here is nonsense. If that was the case you would have one hot spot in your oven and the rest would lose heat rapidly. The fact that doesn't happen shows the radiation in our ovens is highly diffused.
Originally posted by Neil2
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