Home Solution Shower-pipe WWHX
Netherlands

Shower-pipe WWHX

Sustainable building materials & equipment

Efficiently recovering heat from shower wastewater to reduce household energy demand and CO2 emissions.

Contact

Logo

Counter Flow Products B.V.

Company Established Year

Since 2019

Who is this solution for

Govt, Business

Info

Available

To sell

Project Status

In commerce

Looking to expand internationally

Yes

Doing business in

worldwide

Awards and certifications

KIWA Efficiency Certificate

2023

Validated performance of WWHR heat exchangers.

Passive House Certification – VX 1700

2024

Certified ≥52% shower heat energy savings.

Passive House Certification – VX 2100 Turbo

2024

Certified ≥57% shower heat energy savings.

Product description

The vertical shower-pipe wastewater heat exchanger (WWHX) is a groundbreaking solution developed by Counter Flow to address the pressing need for energy-efficient and sustainable construction practices. By harnessing the heat from warm wastewater and using it to pre-heat incoming cold water, this innovative system significantly reduces household energy demand and carbon emissions.

Installed beneath bathrooms on the ground floor, the vertical WWHX operates on the principles of simple thermodynamics, eliminating the need for pumps, energy input, or complex controls. Constructed from copper and PVC, the unit is not only fully recyclable but also ensures safety and durability. With a double separation system in place, the vertical WWHX guarantees that drinking water and wastewater remain completely isolated, meeting stringent hygiene standards.

Certified for its efficiency, this solution achieves high heat recovery rates, leading to substantial energy savings for homeowners and developers alike. Particularly effective for terraced houses, detached homes, and multi-story new builds, the vertical WWHX helps meet building regulations, reduces CO2 emissions, and lowers energy bills for residents.

Easy to install, maintenance-free, and designed for long-term use, the vertical WWHX transforms wasted shower energy into a valuable resource, making it an essential and cost-effective addition to energy-conscious construction projects.

Key characteristics and environmental benefits

  • Efficiently recovers heat from shower wastewater
  • Reduces household energy demand and CO2 emissions
  • Simple thermodynamic operation without pumps or controls
  • Constructed from recyclable copper and PVC materials
  • Double separation system ensures hygiene standards
  • Certified for efficiency with high heat recovery rates
  • Effective for various types of residential buildings
  • Helps meet building regulations and cut energy bills
  • Easy to install, maintenance-free, and long-lasting
  • Transforms wasted shower energy into a valuable resource

About the Company

Counter Flow Products B.V. is dedicated to reducing energy waste in the built environment through innovative wastewater heat recovery technology. By focusing on the largest source of domestic hot water usage—showers—the company designs and manufactures vertical tube-shaped heat exchangers that capture and reuse thermal energy from wastewater. With over 15 years of engineering expertise, Counter Flow develops highly efficient systems that require no auxiliary energy, have no moving parts, and feature double separation between drinking and wastewater for safety. Made entirely of recyclable copper and PVC, these exchangers are durable and environmentally friendly. Their solutions deliver rapid payback and meet Dutch energy-saving standards, helping to lower household emissions and improve overall building efficiency. Through these innovations, Counter Flow Products B.V. is actively contributing to a sustainable future where valuable energy no longer disappears down the drain.

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