Water heating

1: Municipal water feed
2: Fluid from water storage tank to external (passive) heat source; passive heat source can be the ground (soil or groundwater), sun or air via heat pump, or thermodynamic solar panel
3: Fluid from heat pump, or thermodynamic solar panel to water storage tank
4: Pump, actuator, controller and other parts
5: Water heater
6: Water storage tank
7: Hot water to domestic appliances

Electric tank-type storage water heater (US)

Gas furnace (top) and storage water heater (bottom) (Germany)

The inside of a hydraulically operated two-stage tankless heater, heated by 3-phase electric power. The copper tank contains heating elements with 18kW maximum power.

Water heating is a thermodynamic process that uses an energy source to heat water above its initial temperature. Typical domestic uses of hot water include cooking, cleaning, bathing, and space heating. In industry, hot water and water heated to steam have many uses.

单词	Domestic hot water
释义	Domestic hot water 原声例句经济学人（汇总） Since the widespread advent of domestic hot water 70 years ago, their utility and profits have been eroded. 自从70年前家用热水广泛普及以来，它们的实用价值和利润都已降低。英语百科 Water heating Water heating is a thermodynamic process that uses an energy source to heat water above its initial temperature. Typical domestic uses of hot water include cooking, cleaning, bathing, and space heating. In industry, hot water and water heated to steam have many uses.
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Domestic hot water

Water heating