Heating systems manufacturer Ariston has supplied air source heat pump water heaters for new homes at the Climate Innovation District in Leeds.
The development, located in the Hunslet Riverside area of South Bank, will include 955 homes and apartments, alongside a primary school, care home, nursery, offices, and leisure facilities.
The project is being designed in line with key Passivhaus principles, with a focus on insulation and airtight construction to reduce heating demand.
All properties are also connected to a shared photovoltaic (PV) installation, allowing on-site electricity generation and reducing reliance on the grid.
Ariston’s Nuos Plus Wi-Fi water heater has been installed in larger residential properties across the site.
The system uses an air source heat pump to heat an integrated hot water cylinder, drawing energy from external air and supplementing it with electricity when required.
The units operate alongside mechanical ventilation heat recovery (MVHR) systems installed throughout the development, supporting controlled airflow and heat retention in line with Passivhaus design.
Heat pump systems supporting low-carbon housing
The use of air source heat pump water heaters is intended to reduce carbon emissions associated with hot water generation, supporting wider sustainability targets within the development.
Rachel Luffman, Head of Design for Climate Innovation District, explains, “The cylinder in the Nuos Plus Wi-Fi air source heat pump is large enough to support a family home, and the ventilation needs for it can coordinate with those needed for the mechanical ventilation heat recovery system.
“We have installed these in several homes now and they are fit for purpose, so we will continue to install them in the Climate Innovation District.”
The Nuos Plus Wi-Fi system has a coefficient of performance (COP) of up to 3.14 and is rated A+ for energy efficiency.
Ariston has also introduced the Nuos Plus S2 Wi-Fi, which uses R290 refrigerant and offers a COP of up to 3.51 with a low global warming potential.
Both systems are designed to operate with low noise levels, supporting residential use.
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