It's worth checking whether the oven has an Energy Star rating before buying an appliance. These are a good indication that the oven has been thoroughly tested for energy efficiency. Single wall ovens, unlike freestanding models are mounted at eye-level and come with thoughtful features like a pyrolytic cleaning function. https://ovens-and-hobs-uk20746.qodsblog.com/31038916/what-is-a-built-oven-single