What is Waste Water Heat Recovery (WWHR)?
When showering, you are using water that’s been heated using the building’s water heating system (Combi boiler, Cylinder, Thermal store or Heat Interface Unit). A Waste Water Heat Recovery System (WWHRS) captures heat energy that would normally go down the drain during baths or showers.
By using the residual heat from the waste water, a WWHRS preheats the incoming mains cold water feed. This heat exchange reduces the energy demand from water heaters because the heat energy that would normally go down the drain is being reused. Every shower taken using a WWHRS uses less hot water, has lower CO² emissions and reduces energy costs.
Shower draws hot water from the boiler 60°C.
Shower is turned on and draws hot water from the boiler 40°C.
Hot waste water runs down through the Showersave unit 35°C.
Showersave warms cold mains water 10°C via heat transfer from hot waste water.
Warmed mains water flows back up into the boiler 25°C.
Showersave waste water heat recovery provides energy cost saving and reduced CO² emissions.
Benefits of Showersave WWHR
Achieve Part L Compliance
A cost efficient solution to optimise SAP and meet Part L Building Regulations
Cost Efficient CO2 Reduction
Cost efficient alternative to MVHR, solar PV, or triple glazing, achieving similar carbon energy savings
Reduce Energy Costs
An energy efficient solution benefiting homeowners, housebuilders and developers
Maintenance Free
A fit and forget product, lasting the lifetime of the buildings with minimal maintenance
Easy Installation
Quick and easy to install in 3 easy steps, tough enough to withstand an in situ 1st fix pressure test
Suitable for a range of buildings
An industry leading robust design, easy to incorporate into current building designs
Case Studies
Showersave is a trusted partner of the UK’s largest house builders and developers.
Case study
The Banks, Ballyholme
Bangor
An exclusive over 55’s development with impressive views over Ballyholme Bay, Bangor, Northern Ireland. This modern and picturesque development is home to 30 apartments, each available for long term rental.
Case study
Trent Basin Housing Development
Nottingham
Trent Basin demonstrates a shining example of how to blend innovative low energy design, with the reality of building desirable homes in a commercially driven environment.
Case study
Holland Park
London
205 Holland Park Avenue is a development of 41 large apartments in central London, a project demonstrating suitability of Showersave for apartments.
Book a CPD
Find out more about the benefits of WWHRS with a CPD session delivered by our expert team.
Download our brochure
Showersave is installed in over 200,000 homes across the UK and Europe, all of which are benefiting from the recovery of the heat energy contained in the waste water being thrown down the drain. As well as being extremely easy to install, most Showersave systems are maintenance free and have an established record of high reliability.
