Eco news: What is a wastewater heat recovery system?
Architectural Design Insights | Alistair Crerar
Reclaiming heat, reducing waste.
Homeowners are increasingly looking for ways to make their homes greener while reducing energy use. One clever solution is the Wastewater Heat Recovery (WWHR) system. This technology captures heat from the water you’ve already used, such as from showers, baths, dishwashers, or washing machines, and recycles it to pre-warm incoming cold water.
Instead of losing valuable heat down the drain, these systems can recover a significant proportion of that energy, helping reduce both your household running costs and your carbon footprint.
How does it work?
- A heat exchanger is installed within the wastewater outlet.
- As warm water flows away, it transfers heat to the cold-water supply running through the exchanger.
- The preheated water then requires less energy to bring up to temperature, making your heating system more efficient.
Shower installations are particularly effective, as the outgoing and incoming flows happen simultaneously. For baths, washing machines and dishwashers, storage-based systems can be used, which hold the warm wastewater temporarily before transferring its heat.
Benefits of WWHR systems
- Lower energy consumption – less energy is required to heat incoming water.
- Smaller carbon footprint – reducing wasted energy contributes to a greener home.
- No maintenance – once fitted, systems are designed to run without ongoing upkeep.
- Future-ready – a smart addition if you’re upgrading to renewable heating or aiming for higher energy efficiency standards.
Is it right for my project?
WWHR systems are easiest to install during new builds, extensions, or major refurbishments, where plumbing layouts can be designed with them in mind. Retrofitting into existing bathrooms or kitchens can be more complex, but it’s sometimes possible depending on space and layout.
While savings will vary depending on how much hot water your household uses, the environmental impact is immediate: less wasted energy, greater efficiency, and a step towards a more sustainable home.
At Acre Design, we’re passionate about integrating innovative, sustainable technologies into our projects across Newcastle, Northumberland and North Tyneside. If you’re planning an extension or renovation, we’d love to help you explore how WWHR systems, and other eco upgrades, could work in your home.
Book your Ask the Expert Call today and let’s start planning your future-ready home.
Planning permission in Newcastle & the North East
Securing planning permission is often one of the first steps in creating your dream home extension or loft conversion. In …Bringing your home to life with 3D internal images
When you’re investing in a significant home transformation, whether that’s a kitchen extension in Gosforth, a new garden room in …A contemporary home extension in Cramlington
Our clients in Cramlington approached Acre Design with a vision: to modernise their existing property and create a home that …Gosforth planning approval – A modern family home reimagined
In Gosforth, one of Newcastle’s most desirable neighbourhoods, Acre Design secured planning permission for the transformation of a four-bedroom detached …Why choose Acre Design
Specialists in residential design and project management
We provide a complete concept-to-completion service, managing every stage of your project with precision, ensuring your home transformation is seamless and stress-free.
Transparent, upfront pricing
Enjoy a free initial consultation and a fully detailed quote before any work begins, giving you clarity and confidence with no unexpected costs.
Effortless project delivery
From planning approvals to contractor coordination, our team takes care of every detail so you can focus on enjoying life while your dream home takes shape.
Proven Track Record
With more than 1,000 completed projects across Newcastle, Northumberland, and North Tyneside, we are trusted for our quality, creativity, and commitment to exceeding expectations.
Contact Acre Design
CAI Building, Royal Quays,
North Shields, NE29 6DE