What is on-demand hot water recirculation system?
BASIX definition On-demand hot water recirculation system means a system that, on demand, recirculates cold water sitting in the hot water pipe back to the water heating system for heating before use, as a means of saving water. It does not include continuously recirculating hot water systems. To maximise the water saving benefit of ‘on-demand hot water systems’, they must be connected to every hot water-using fixture located within the dwelling. This 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. Further information and installation advice are available from the respective manufacturers of these systems. Note: an ‘on-demand hot water 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.
