We are always on the look out for innovative and cost effective ways to reduce energy use and assist in achieving Part L compliance.
A Waste Water Heat Recovery system (WWHR) has no moving parts or electrical connections and will not require any post installation customer interaction.
The manufacturers claim that not only will it save developers money but it will also reduce their CO2 emissions. It is claimed the system is likely to pay for itself within 3 years, a significantly better return than any other sustainable / renewable product.
The product is recognised by BRE within SAP 2005 (Appendix Q) and SAP 2009 within the Products Characteristics Database.
Our analysis, using a broad range of house types, is that one unit can count for between 4%-8% of the requirement over the Target Emissions Rate (TER) depending on the house type and fuel being displaced. Clearly, the more showers and units installed this figure is enhanced.
Taylor Wimpey are using the system across many of their sites, as are other house builders including, Redrow, Miller Homes, Stewart Milne amongst others. There are in excess of 21,000 units installed across Europe to date and over 500 in the UK.
