Hot water systems come in several designs, each built to deliver reliable, efficient hot water for different home sizes and usage needs. Tank water heaters store heated water in an insulated tank, providing a steady supply for everyday household demands. Tankless water heaters heat water on demand, offering endless hot water while reducing energy waste and saving space. Indirect water heaters use a home’s boiler as the heat source, delivering high efficiency and fast recovery rates. Combi boilers provide both home heating and domestic hot water from a single compact unit, eliminating the need for a separate water heater.