Passively Recovering Waste Heat Energy With Every Shower

Recoup Drain+ Duo HE

The Recoup Drain+ Duo HE offers our incredible shower heat recovery technology in a WWHRS integrated wet-room drain / channel system. A true design focal point, with market-leading energy efficiency of up to 57.3%. Uniquely, this state of the art Waste Water Heat Recovery system for Showers (WWHRS) is available with two external cover plate finishes: The contemporary & functional look of the brushed, stainless steel ‘Quadratto’ drain cover, or the sleek, modern & sophisticated minimalistic look of the ‘in-line’ tile finish, creating the illusion of the shower water magically draining into the tiled wet-room floor. This passive energy saving device features a “double-walled” heat exchanger, offering the highest efficiency of any horizontal WWHRS system. with no moving parts, no exchanger maintenance, no end-user interaction This is a must have system for any high-end residential project trying to meet energy efficiency targets, as well as leisure clubs, gyms, nursing homes, holiday parks, hotels, student accommodation, ground floor self-build or any walk-in shower scenario.

Features and benefits

  • Horizontal WWHRS – integrated shower drain for wet-rooms
  • Patented, double-walled heat exchanger
  • KIWA validated efficiencies of up to 57%, dependant on flow rate
  • In-line tile or Quadratto cover plate options
  • Built-in shower trap
  • Legionella control risk assessed
  • Option of 3 system installation variations
  • High quality manufacture
  • Virtually maintenance free
  • SAP listed

Product application

Bungalows or ground floor, Apartments, Commercial properties Product Application

Product diagram

Recoup WWHRS Drain+ Duo HE Diagram

Data & Specification

Specification details

Description Value Unit
Minimum depth for installation 180 mm
Overall width for installation 866 mm
Material – Heat exchanger Copper
Shower flow rate 5 – 12.5 litres/min
Max. Mains water inlet pressure 10 bar
Min. Mains water inlet pressure 1 bar
Max. Waste water working temp 85 °C
Mains water connection ½” male BSP
Waste water connection 50 mm
Weight (Boxed) TBC kg
Water volume – mains water TBC litres

 

Performance & efficiency

Shower Flow Rate @ 40°C ( litres/min )

dRAIN+ DUO  HE efficiency ( Recovered energy kWh )

System A System B System C
5.8 57.4% (6.97) – – – – – –
9.2 57.3%(11.03) – – – – – –
11.0 56.7%(13.05) 44.9%(10.34) 49.2%(11.33)
12.5 56.4%(14.76) – – – – – –

 

Pressure drop on mains water circuit

Shower Flow Rate @ 40°C (litres/min)

dRAIN+ DUO HE Pressure drop ( bar )

System A System B System C
5.8 0.14 <TBC
9.2 0.32 <TBC
12.5 0.54 <TBC

Technical information and downloads

Recoup WWHRS Drain+ Duo HE (+55mm Syphon) drawingRecoup WWHRS Drain+ Duo HE (+55mm Syphon) drawing

Recoup WWHRS Drain+ Duo HE (+55mm Syphon) drawing document.

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Recoup WWHRS Drain+ Duo & Duo HE - Quadratto cover plate drawingRecoup WWHRS Drain+ Duo & Duo HE – Quadratto cover plate drawing

Recoup WWHRS Drain+ Duo & Duo HE – Quadratto cover plate drawing document.

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Recoup WWHRS Drain+ Duo & Duo HE - In-line tile cover plate drawingRecoup WWHRS Drain+ Duo & Duo HE – In-line tile cover plate drawing

Recoup WWHRS Drain+ Duo & Duo HE – In-line tile cover plate drawing document.

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Recoup WWHRS BrochureRecoup WWHRS brochure

Recoup's Waste Water Heat Recovery Systems (WWHRS) Brochure and Portfolio to download, save, print or share. Provides background information on WWHRS, SAP assessment, product options, features, benefits and frequently asked questions. Download here...

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