ARSD 44:70:10:29. Hot water systems

Each hot water distribution system over 50 feet or 15.24 meters long must recirculate to provide hot water at each fixture at all times. The hot water heating equipment must have sufficient capacity to supply water at the temperatures and amounts indicated in the following: (1) Three gallons an hour or 0.0033 liters a second for each bed; (2) Two gallons an hour or 0.0020 liters a second for each bed for dietary use; and (3) Two gallons an hour or 0.0020 liters a second per bed for laundry. Each storage tank provided must be fabricated of noncorrosive metal or lined with noncorrosive material.