This document discusses household refrigerators. It defines a refrigerator as an appliance that is artificially kept cool to store food and drinks. Some key advantages are not having to make daily trips to the market for perishables, longer storage of items, and saving leftovers. Refrigerators can use a significant amount of energy and require repairs over time. They can also pose fire and environmental hazards if not disposed of properly. The document describes common refrigerator types including top freezer, bottom freezer, side-by-side, and French door models.