Case Studies
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.
Maximising hot water efficiency in Student Accommodation with Zypho
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.
Why Stainless Steel Wins Over Copper in Vertical Waste Water Heat Recovery
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.
A Smarter Step after “Fabric First”
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.
The SAP Gap: Time to take another look at Waste Water Heat Recovery
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.
Communal Heating and Energy Savings
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.
Navigating Compliance: Understanding UK water regulations for Waste Water Heat Recovery
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.
Maximising Home Energy Efficiency
How housing developers can maximise energy efficiency by combining solar with affordable solutions such as waste water heat recovery (WWHR).
Delivering Net Zero From the Drain Up
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.
Boosting SAP Scores and Tackling Fuel Poverty in SHDF Retrofits
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.
Come and meet us in 2025
With social housing decarbonisation funding and Wave 3 very much on everyone's mind at present, plus new legislation and compliance around Net Zero and Awaab's Law in housing, it's even more important to find affordable energy-saving solutions that tackle fuel poverty and make homes healthier.
Zypho at London Build 2024
London Build at Olympia (November 20-21) is one of the most exciting shows in the building and retrofit calendar, and we're delighted to be exhibiting there once again this year. Our team of experts will be on hand to talk you through the basics of shower heat recovery, and demonstrate the incredible fuel- and cost-savings that can be made by simply installing waste water heat recovery devices in your property.
Energy Saving: Shower Heat Recovery vs Solar Panels
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.
Zypho exhibiting at Installer Show in Birmingham
Discover the latest in shower heat recovery systems at the Installer Show, NEC Birmingham, 27 - 29th June 2023. We will be exhibiting on stand D136, and look forward [...]
Case Study: Reducing domestic fuel bills
With so many people using the shower, hot water supply was always an issue, especially in the winter. Even if we set the water temperature right up to 65 degrees, we could never get it very hot. And by the time everyone had finished showering, there was no hot water for anyone else.


