Device for supplying warm water and method thereof

摘要

Provided is a device for supplying warm water and a method thereof. The device for supplying warm water includes a first heater configured to have a first set capacity and heating received water, a second heater configured to have a second set capacity greater than the first set capacity and heating received water, and a control part calculating heater driving cycles of the first heater and the second heater according to a set water temperature, and driving the first heater and the second heater according to the heater driving cycles. The control part calculates the heater driving cycle of the first heater by using a phase control method, and calculates the heater driving cycle of the second heater by using a zero-crossing control method.