Domestic hot water refers to the heated water used in homes for various purposes, such as bathing, cooking, and cleaning. It is typically produced by a water heater, which can be powered by electricity, gas, or solar energy. The hot water is stored in a tank or delivered on demand through a system of pipes. In many households, the demand for hot water varies throughout the day. To ensure a steady supply, some systems use a combination of storage tanks and instant heating. Efficient management of domestic hot water can lead to energy savings and reduced utility bills, benefiting both the environment and homeowners.