The Masterplan
Welborne Garden Village represents one of the most ambitious and forward-thinking residential masterplans in the UK. Designed as a complete new community, this sustainable garden village is combining high-quality architecture, extensive green space and a strong focus on the future to deliver 6,000 homes along with schools, healthcare facilities and other public spaces for people to live, work and thrive.
Underpinning Welborne is the UK’s largest water source energy network designed and delivered by Rendesco. The network draws water from Portsmouth Water’s underground Hoads Hill Reservoir, making it significantly more efficient than air source heat pumps due to its stable and higher than average temperature, typically 12°C. A unique feature of the network is its capability to provide cooling in the summer by reversing the process and expelling heat back into the reservoir.
Acknowledging the energy network could reverse cycle and provide cooling as well as heating, the challenge then was to unlock that potential within the homes.
The Briza 10 Solution
The solution was Jaga’s Briza 10 Baseline heat pump radiator.
Engineered specifically for heat pump systems, the Briza incorporates intelligent fan coil technology to maximise output at low water temperatures. This enables strong heating performance in a compact design. Crucially, the same unit can operate in cooling mode using the existing flow and return pipework and connections from the local heat pump.
Briza has unrivalled product guarantees. Heat exchangers are covered for five years, valves three years, electrical components two years, and other components for ten years. Jaga provides support for design, application and installation guidance, via a nationwide network of sales and technical professionals.

Master Developer Perspective
Paul Self, Commercial Director at Buckland Group, explained:
‘We were looking for a slimline, aesthetically pleasing emitter that was simple to operate and exceptionally quiet in use.
The alternatives we reviewed tended to be larger and felt more suited to commercial environments than high-quality homes, which did not align with the residential vision for Welborne.
We are installing underfloor heating on the ground floors and using Jaga Briza units in all bedrooms, where cooling is provided via NIBE or Kensa water source heat pumps. The Briza units deliver efficient heating in winter and comfortable cooling in the summer, giving homeowners true year-round comfort from a single emitter. The sleek, uncluttered design, low operating noise levels and intuitive control via the Jaga app were all important factors in our decision.
Most importantly, the Briza stood apart aesthetically from other products on the market. Based on our experience at Welborne, we would definitely consider Jaga for future developments.’

Future-Ready Comfort Model
Welborne demonstrates how planned communities can integrate renewable infrastructure and advanced emitter technology to create genuine year-round comfort.
The Briza heat pump radiator enables heating and cooling from a single, beautifully designed emitter connected to a simple two-pipe heat pump system. By utilising the water-source energy network as both a heating and cooling source, Welborne maximises the value of its shared infrastructure.
