Control of fluid temperature in a dialysis system

A dialysis system comprising:

• a supply sub-system configured to supply a fluid and comprising a heating device for heating the fluid,
• a storage sub-system comprising a non-heated reservoir, wherein the non-heated reservoir is fluidly connected to receive the fluid from the supply sub-system and configured to hold an intermediate supply of the fluid during operation of the dialysis system,
• a treatment sub-system configured to obtain the fluid from the storage sub-system and perform a dialysis treatment by use of the fluid, and
• a control device configured to operate the treatment sub-system to perform the dialysis treatment,
• wherein the control device is further configured to operate the supply sub-system to perform a sequence of fluid supply cycles causing a sequence of time-separated boluses of the fluid to be supplied to the non-heated reservoir, wherein a respective fluid supply cycle among the fluid supply cycles is assigned a target temperature and comprises a predefined number of boluses, wherein the supply sub-system is operated to achieve, through the predefined number of boluses, the target temperature of the fluid in the non-heated reservoir for the respective fluid supply cycle.