I just want to make sure that it is sufficient to meter 2 subsystems; not all that are available in a project. Is this correct?
I a project, there is irrigation and of course fixtures and fittings. There may be decentral on-demand domestic water heaters (small ones in each restroom of the tenant spaces).
To my understanding it is not required to meter domestic hot water; as long as irrigation and fixtures and fittings are metered. Is this correct?