When using sanitize wash, should hot water be supplied?(Only sanitize washers)

Unlike normal fully-automatic washer, the sanitizing washer has a sanitize wash function.

Using only a cold water supply, the sanitize wash is possible with the help of the internal heater.

 However this method consumes a lot of energy and may lead to a higher electricity fee depending on the temperature of water supplied.

Therefore it is advisable to use sanitize wash when hot water is connected to the machine.