Case Studies

As domestic energy consumption and carbon emissions are steadily reduced through tighter regulations, the energy balance of new homes is changing. As building fabric performance improves, hot water is no longer a secondary load. Instead, it is beginning to account for an increasingly significant proportion of domestic energy use.

As homes become more energy efficient, hot water is set to become one of the largest sources of household energy demand. Discover how Zypho's Waste Water Heat Recovery technology captures heat from shower waste water to reduce energy use, lower bills and support net zero housing in both new build and retrofit projects.

As UK social housing retrofit programmes adopt the fabric-first approach, attention is turning to the remaining source of energy demand: hot water. Zypho Waste Water Heat Recovery (WWHR) captures heat from shower waste water and reuses it to preheat incoming cold water, reducing energy use, lowering bills, and supporting net-zero targets without complex installation or user intervention.

Purpose-built student accommodation places heavy and predictable demand on domestic hot water, particularly from frequent en-suite shower use. Recovering heat from shower wastewater offers a simple, passive way to reduce energy consumption, carbon emissions and operating costs at scale.

Choosing marine-grade stainless steel over copper in vertical waste-water heat-recovery systems improves durability, resists corrosion and theft risk, and delivers high energy recovery in modern buildings.

Once the building fabric is optimised, the bathroom becomes the next big opportunity. Recovering shower heat can slash energy use, cut bills and support decarbonisation without major behaviour change.

As fabric standards improve, waste-water heat-recovery offers cost-effective SAP uplift and carbon savings. It feels like a hidden gem in the drive to compliance and efficiency.

In high-density homes, hot-water demand drives energy use. Using shower waste-heat recovery units significantly lowers load on communal systems, slashes emissions and reduces resident bills.

Compliance with UK water regulations is essential for consultants, designers, and architects when specifying and installing waste water heat recovery (WWHR) systems, particularly in new builds and renovation projects.

Now is the optimal time to incorporate waste water heat recovery (WWHR) into retrofit programmes, maximising energy efficiency gains and supporting residents to live in warmer, more affordable homes.

Now is the optimal time to incorporate waste water heat recovery (WWHR) into retrofit programmes, maximising energy efficiency gains and supporting residents to live in warmer, more affordable homes.

It’s a well known fact that installing PV panels in the home is not a cheap option. The Energy Savings Trust estimates that installation will set you back £7,860 for a three-bed semi-detached house with four occupants, according to figures released in March 2023. But the figures will vary depending on the size of your home and how much energy you want to produce.