What is a Waste Water Heat Recovery system?

Waste Water Heat Recovery used in outdoor shower head for the bath and showering cold water to body before jumping in the resort pool
Waste Water Heat Recovery uses hot water that would otherwise be washed down the drain (Image credit: Getty Images)

A Waste Water Heat Recovery system, also known as a drain water heat recovery system, is designed to capture and reuse the heat energy from hot water that is typically discarded down the drain. 

This type of system is employed to improve a home's energy efficiency and could be required for all new homes by 2025 due to the Future Homes Standard.

David Hilton
David Hilton

With more than 35 years of expertise, David is a seasoned renewables and ventilation installer, recognised for his longstanding contributions to Homebuilding and Renovating magazine. Holding membership in the Gas Safe Register and armed with a Masters degree in Sustainable Architecture, David stands as an authoritative figure in sustainable building and energy efficiency. His extensive knowledge spans building fabrics, heat recovery ventilation, renewables, and conventional heating systems. Additionally, he serves as a distinguished speaker at the Homebuilding & Renovating Show.

Joseph Mullane
News Editor

News Editor Joseph has previously written for Today’s Media and Chambers & Partners, focusing on news for conveyancers and industry professionals.  Joseph has just started his own self build project, building his own home on his family’s farm with planning permission for a timber frame, three-bedroom house in a one-acre field. The foundation work has already begun and he hopes to have the home built in the next year. Prior to this he renovated his family's home as well as doing several DIY projects, including installing a shower, building sheds, and livestock fences and shelters for the farm’s animals. Outside of homebuilding, Joseph loves rugby and has written for Rugby World, the world’s largest rugby magazine.