Waste Water Heat Recovery

Recoup develops heat exchangers that recover heat from shower wastewater, turning wasted warmth into valuable energy and contributing to the creation of future-proof buildings.

About

At Recoup, we aim to minimize energy loss by making wastewater heat recovery (WWHR) for showers a standard feature in every new home. This helps reduce the carbon footprint and supports compliance with current and future EU energy efficiency standards. Residents benefit from a more sustainable hot water system that significantly lowers energy costs without compromising shower comfort.

Our promise

Recoup provides innovative products that address one of the largest energy losses in modern buildings. Our solutions help builders, developers, and installers improve energy efficiency and create future-proof buildings. We focus on developing easy-to-install systems that reduce installation time and minimize complexity.

Powered by nature

Recovering heat is achieved without auxilary energy. Gravity alone insures maximum reliability.

No moving parts

Designed for durability and long-lasting performance without the need for any maintenance.

Self-activating

Heat recovery starts within seconds of every shower, with no user interaction required.

How waste water heat recovery works

Recoup products recover heat from warm shower wastewater. Cold water runs alongside double-walled heat exchangers, capturing the heat and preheating the incoming cold water. This process recovers up to 65% of the heat.

Insights & updates

The latest innovations and projects from Sanura.

Schermafbeelding 2026-03-11 141406

Save up to 50% domestic hot water

What is a Waste Water Heat Recovery (WWHR)? A Waste Water Heat Recovery for Showers is a system

ShowerPipe installation

Case Studie – Residential project France

Project Details Project type: Residential, individual house Project location: France Planned Completion: 2025 Product: Vertical Waste Water Heat

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Shower heat recovery: advantages and disadvantages

An innovative way to make your home more sustainable and save energy while showering is to use a

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