Under preparation
Abstract
This proposed calculation method covers the required input data and calculation procedures to assess the energy performance of a system to recover the heat from the waste water of a domestic hot water system.
In the context of reduced heating needs due to the increasing level of building insulation, the energy use for domestic hot water has an increasing role. Waste water heat recovery (WWHR) is a technology that allows to cover a significant part of the domestic hot water energy use with heat recovered from the shower drain.
Acknowledgement: This proposal has been developed by the EPB Center with the support of the European Copper Institute (ECI) and the European Association for Wastewater Heat Recovery (WWHR Europe).
Current status: new active work item in CEN (link)
Links
More information
- Study confirming potential of wastewater heat recovery, commissioned by the European Copper Institute at the University of Innsbruck and the Passive House Institute
- Zero-Emission Buildings Academy, 2nd webinar, Recovered energy: the forgotten potential for zero emission buildings
- REHVA Journal, Vol. 60, Issue 2, April 2023, Laurent Socal, Shower drain heat recovery – an introduction