ZYPHO® waste water heat recovery system saves energy, and saves you money.
Hot water is a massive part of the average UK household’s energy bill. We spend around £600 per year on heating water for showers. By recovering heat from wastewater, Zypho improves shower efficiency by 30 – 82%.
A Zypho is easy to install underneath your bath or shower tray. Once in place, it passively recovers heat from every shower, day after day, year after year.
Less energy consumed = fewer CO2 emissions and more showers for “free”.
How Zypho® works
The principle is simple
No Power
No Wires
No Moving Parts
Run outgoing wastewater against a copper coil of incoming cold water.
While the two streams are kept physically separate, the heat passes from the waste hot to the fresh cold.
ZYPHO has encapsulated these thermodynamic processes in a single, ingeniously designed unit that can fit under virtually any shower tray.
Three Zypho® models available
Download our product catalogue
See all information relating to the full range of Zypho shower heat recovery solutions.
News and Insights
Wastewater Heat Recovery and the Future Homes Standard
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.
Why shower heat recovery is a net zero hero
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.
Why ZapCarbon and Zypho are Backing the Liverpool Retrofit Revolution
ZapCarbon is heading to the Liverpool City Region Retrofit Summit & Expo 2026 to showcase Zypho’s smart retrofit solutions that reduce hot water costs, cut energy use, and help tackle fuel poverty across the North West.
Zypho WWHR: Unlocking Stage 2 of Retrofit Efficiency
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.
