The water circulating part comprises a pump, an outlet valve, a ball valve, a water tank, a water temperature sensor and a filter. The frequency and flow changing heat pump water heater takes the frequency-changing compressor as the power source of the system, takes the electronic expansion ...
heat water directly as it passes through a heat exchanger. This makes it possible to get hot water on demand without a storage tank. Tankless systems are more energy-efficient than storage tank systems since they only heat water when needed, resulting in lower energy costs and reduced standby ...