Advantages and disadvantages of a circulation pump
The constant supply of hot water significantly increases their living comfort. You save water, because the cold water does not end up unused in the drain. In addition, you prevent the formation of legionella, due to the constant heating of the water.
A circulation pump requires a circulation line, which is difficult to upgrade. You would have to do extensive construction work on the building, which can be expensive. Furthermore, the pipes must be well insulated so that the water does not cool down while circulating. The conventional models are permanently in operation, which involves a not inconsiderable energy consumption, for operation and heating.