Hot Water Diversion and Recirculation

BASIX recognises the following types of hot water management systems:

• Hot water diversion systems - diverts cold water in the hot water pipe to a tank
• Hot water recirculation systems (on-demand) - circulates cold water in the hot water pipe back to the water heater in response to a switch or sensor
• Hot water recirculation systems (continuous/timed) - circulates cold water in the hot water pipe back to the water heater continuously or in response to a timer

The installation of a hot water management system will require discussion with your plumber/hydraulic designer, to ensure they understand the plumbing requirements for these systems, and factor this in during design/installation stages of the development. The system must be permanently connected to every hot water-using fixture located within the dwelling.

Further information and installation advice is available from the respective manufacturers of these systems.

Note: a hot water diversion system or recirculation system is NOT an instantaneous hot water system. For further information on hot water systems, refer to the help notes within the 'Energy' section.