Rapid Fast Flow Electric Water Heater series equips with double inner tank and two independent heating elements. When user starts to use hot water, the hot water of the left inner tank will be used first. If water temperature does not reach the temperature set by the user, the heating element will be activated, and the upper indicator light will be on first
When water temperature in the left inner tank reaches the temperature set by the user, the lower indicator light will be on, indicating that the heating element of the right inner tank has started to replenish heat.
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