My doorway is 22" wide and 10 1/2" high. The door is a perfect semicircle so the door area is more or less 175" square so the flu would need to be 17 1/2" square area therefore the flue would have to be under 5" in diameter according to the info I have found on this forum.....(Ideal Flue is 10%area of the door area). This seems small for a 42" oven...any ideas? Thanks
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Flue area to door area question? Confused again