Jisho

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Noun
1. water heater; (domestic) boiler
Wikipedia definition
2. Water heating2: Fluid from water storage tank to external (passive) heat source; passive heat source can be the ground (soil or groundwater), sun or air; e.g. 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]] Water heating is a thermodynamic process using an energy source to heat water above its initial temperature.
Read “Water heating” on English Wikipedia
Read “給湯器” on Japanese Wikipedia
Read “Water heating” on DBpedia

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