Ariston Case Study - NIMBUS Heat Pump - CANOPY HOUSING - IMS - LEEDS

Case Study

Installation Carbon

Installation Carbon savings Luke Begley, IMS Installation Manager for the project commented on some of the other considerations that were taken into account when choosing the heat pump for this project. Issues for installation were quite complex as the NIMBUS Pocket was to be sited at a mid-terrace property where available space was tight. Luke said, “It was necessary to find a location for the heat pump that passed the MCS 020 Sound Assessment test. This required the heat pump to be fitted as close as possible to steps down from the kitchen door to ensure the sound level at the neighbour’s window was below the 42dBa level required by permitted development rules. With airflow requirements of 150mm the Ariston unit compared favourably to most heat pumps available. It is also very compact at just 1016mm wide meaning it could be fitted exactly in the desired location.” Dave Richards added, “The use of R32 refrigerant in the NIMBUS range was also an advantage in this case. Used by many manufacturers, R290 is a propane-based flammable refrigerant meaning larger safety clearances are required around the heat pump. In this installation with the tight spaces at play, the NIMBUS R32 heat pump was ideal.” Luke then continued, “The design of the system was based on low operating temperatures that can be readily matched by the Ariston unit with radiators installed with a 41 to 45 C flow temperature and 50 to 55 C DHW temperature. New radiators were installed to IMS specifications to ensure room temperatures can be maintained as required.” Comment “ With airflow requirements of 150mm the Ariston unit compared favourably to most heat pumps available. It is also very compact at just 1016mm wide meaning it could be fitted exactly in the desired location. ” Luke Begley, Installation Manager, IMS Heat Pumps Ltd Matilda Wallis commented, “Canopy Housing is currently retrofitting empty homes in Leeds using wood fibre insulation and limestone plaster to provide a low-carbon, breathable solution to infamously damp and cold housing. We are experimenting with providing low-carbon energy for our tenants by installing solar panels and air source heat pumps in our properties in a bid to ensure lowcost heating and electricity to our tenants, reduce the risk of fuel poverty, and improve the local air quality in Leeds”. In an estimate of CO 2 emissions completed by IMS Heat Pumps, the results show that the Ariston NIMBUS Pocket heat pump is expected to account Annual Carbon Dioxide Emission Comparison 6 5 CO₂ Emissions (tonnes/yr) 5.1 for 0.9 tonnes of CO 2 per year against 3.7 tonnes for the previous gas boiler, a saving of almost 3 tonnes per year. This carbon saving is predicted to increase over time as more UK electricity is produced from renewable sources leading to a greatly decarbonsied electricity grid. For Canopy Housing, this along with a predicted rebalancing between gas and electricity pricing, is an important consideration in their energy redress projects using ASHPs as funding can be difficult to obtain. So, a future with a decarbonised energy supply and lower electricity pricing will hopefully lead to more heat pump projects being feasible. You will SAVE 3 4 3 4.1 3.7 3.5 Tonnes of CO₂ per year Equivalent to PLANTING 2 1 0.9 126 TONNES 0 Heat Pump Oil Boiler LPG Boiler Mains Gas Boiler Direct Electric Trees per year Estimation provided by IMS Heat Pumps More information This installation and the work that Canopy Housing does was featured as part of a BBC Morning Live programme (29.08.2024) on the importance of improving energy efficiency in retrofit housing projects to hit UK 2050 Net Zero targets. It is available to watch on BBC iPlayer until 28.08.2025. For more information visit the Ariston, IMS Heat Pumps and Canopy Housing websites: ariston.com/en-uk imsheatpumps.co.uk canopyhousing.org CS-AUK-NIMBUS-24-09 | 3 HOT WATER | HEATING | RENEWABLES | AIR CONDITIONING Customer Service: customer.service.uk@ariston.com | 0333 240 8777 Sales: salesoffice@ariston.com | 0333 240 6666 | 4