For home cooks wall ovens are the definition of flexibility and convenience. With wall ovens, you no longer have to bend over to check your meals and take them out of the oven. When you are purchasing a wall oven you have to pay close attention to certain features and decide which type works for you. First decide whether you want a gas or electric wall oven. The next step is to decide what sized wall oven is best for you. Make a decision based on your kitchen space and your family size.