https://sciencewiki.science/wiki/Cheap_Single_Oven
Being shorter than a double oven, single ovens can fit into small spaces and slide neatly under counters. They usually have electric elements at the top and the bottom of the oven for zoned heating. This allows for a more precise cooking and browning of dishes. You can cook several dishes at once, which saves time. Easy to clean If you are only a single person or don't cook a lot of meals A single oven with grill can be incredibly useful. It can replace your current oven and air fryer all in one unit, which will save you counter space.