How to calculate the amount of hot water shower in school?

Hot water quota method: daily water consumption = maximum daily water quota (L)× user unit.

The hot water consumption is determined according to the domestic hot water quota. There are two kinds of hot water quota: one is determined according to the nature of the building and the perfection of the internal sanitary ware, and its water temperature is calculated at 60℃;

The second is based on the nature of the building and the unit water consumption of the internal sanitary ware.