Instantaneous Wastewater Heat Recovery in Buildings
Learn everything about the essential aspects and practical information for the integration of instantaneous wastewater heat recovery systems (WWHRS) into existing and new buildings.
- 500,00 €
Pre-registration opens on 25/05/2026.
Description
The EPBD recast (EU/2024/1275) highlights the relevance of wastewater heat recovery systems (WWHRS) as energy-saving technologies with very short payback periods.
Wastewater heat recovery systems (WWHRS) harness the heat from drain water to preheat incoming cold mains water. As such, it partially meets energy needs by recovering energy that would otherwise be wasted. Instantaneous wastewater heat recovery is considered low-hanging fruit for building energy efficiency due to its simplicity and high potential for energy savings (up to 60% of shower energy needs can be recovered).
In this course you will learn everything there is to know about the instantaneous wastewater heat recovery as defined in the European standards.
Disclaimer: While the operational performance of WWHRS is unquestioned, it is the prerrogative of Member States to integrate WWHRS into their official energy performance of building assessment procedures.
Addressed to
Building service engineers who wish to learn the fundamentals of instantaneous wastewater heat recovery. It is particularly beneficial to professionals dealing with sanitary hot water installations.
Objectives
The objective of the course is to build capacity on:
- Integration of wastewater heat recovery systems in building projects
- Influence of wastewater heat recovery systems in building’s energy performance assessments, as described in the prEN 15316-7-1
Characteristics
- Self-paced and interactive theoretical modules
- Quizzes
- Practice-based exercises
- Engagement and Collaboration
- Certificate of Achievement
- Alumni LinkedIn Group
Program
This course is structured to increase the knowledge about WWHRS gradually.
Introduction
- Concise overview of instantaneous WWHRS
- Fundamentals of WWHRS as heat exchange devices
- Notion of heat available for recovery
- Types of configurations
- Calculation of recoverable and recovered heat
Calculation Procedure
Energy performance calculation procedures for various WWHRS types based on their connection schemes (A, B, and C)
- Scheme A
- Scheme B
- Scheme C
- Performance comparison
Health and Safety
- Legionella
- Materials
- Cross contamination and leakage detection
- Fire safety
- Acoustics
Application Guide
- General technical requirements are described for each type of product
- Considerations related to hot water distribution systems and sewage drainage
- Considerations related to the depth of intervention in existing buildings and new constructions
Excercise
More information about the exercise on 9 April
Certificate
- Feedback survey
- Certificate of Achievement download
Teachers
