The Rack Settings
Conventional ovens use radiant heat to cook food. That means food placement is an important consideration when determining cooking time: the doneness, texture and moisture content of baked goods like pie crusts, pizza dough and bread depend on where in the oven you place your dishes or pans.
Have you ever read a recipe instructing you to put a pie or casserole on the center oven rack only to discover that the rack supports in your oven are too high or too low? If the sweet spot in your oven's interior is only accessible using a tall pot, what you need is an oven with more rack settings. These days it isn't hard to find an oven with five or more, so open the oven door and take a gander.