An Aerona³ air source heat pump has been installed alongside a Grant high performance hot water cylinder to upgrade the heating system of a property in Lanark, Scotland. Converting this home’s heating system from a traditional fossil fuel to renewable energy, the Grant heat pump and cylinder installed are designed to partner together effectively to deliver maximum system efficiency.
The Project
Property: single story detached cottage
Heat Source: air source heat pump
Products installed: Aerona³ 10kW air source heat pump and Grant hot water cylinder
In the Autumn of 2019, the owners of a two-bedroom, single story detached cottage in Braehead, Lanark, made the decision to upgrade their central heating system. An external oil boiler previously heated the property which was sited alongside the property where a future extension is proposed to be built. The need to re-site the boiler prompted the homeowners to reassess their home heating and, after thorough discussions with their installers MCA Renewables, they decided to switch to renewable heating.
Features of Aerona³ R32 heat pump
A Grant Aerona³ R32 10kW air source heat pump was selected. Compact in size and highly efficient, the Aerona³ R32 models are high performing heat pump units which provide homes with reliable heating and hot water. With excellent SCOPs even when the external temperature is very low, the Aerona³ units use R32 refrigerant and are highly efficient air source heat pumps. They can also deliver householders a return on their investment by reducing their reliance on fossil fuels and by being eligible for financial support through Government incentives.
Why the homeowner chose a heat pump
“These homeowners wanted to move away from oil,” comments Terry Doherty of MCA Renewables, the G1 Installers who completed this installation. “Upgrading a traditional heating system to a more sustainable, efficient option can be expensive but with Government initiatives available, homeowners can access financial support to help them incorporate greener, renewable technologies into their properties. For this installation in Braehead, the homeowners received an interest free loan of £10,000 through the Home Energy Scotland Loan scheme, which helped with the installation costs, and they have also applied for the Domestic RHI Scheme so will receive quarterly payments for their renewable heating for seven years.”
All of Grant’s Aerona³ heat pumps are MCS approved and MCA Renewables are MCS accredited installers, thus making this installation eligible for the Domestic RHI.
Update September 2025 - please note, the Domestic RHI Scheme is no longer available. Please visit our Government Incentives and Initiatives webpage for the latest information on current funding support.
What funding is available for heat pumps in Scotland?
The Home Energy Scotland Loan initiative is designed to provide homeowners in Scotland with an interest free loan (funded by the Scottish Government) to encourage them to make energy saving improvements within the home, such as installing a renewable heating system. This loan can help with the initial costs of an installation, making the selection of a renewable heat source a more viable solution for homeowners.
Eligible homeowners can also access a grant through the Home Energy Scotland (HES) Grant Scheme, funding which can be claimed either independently or alongside a HES Loan. The infographic below summaries the technologies which are eligible for a HES Loan and which are eligible for a HES Grant.
Please visit our Home Heating Blog to learn more about the HES Grant and Loan Scheme.
For homeowners in England and Wales, the Boiler Upgrade Scheme provides a grant of up to £7,500 to eligible households who replace their fossil fuel boiler by installing an air source heat pump – read our blog here to discover more about the Boiler Upgrade Scheme (BUS).
G1 Installer thoughts on the installation
While the homeowners can enjoy all the benefits that their new Grant heating system is delivering, the installer also found working with the Aerona³ heat pump an enjoyable installation. “The Grant Aerona³ range is my heat pump of choice,” continues Terry. “We have installed a number of these heat pumps and find them very straightforward to work with, being installer friendly and easy to set up. We also installed a Grant high performance 200ltr cylinder which is ideally suited to complement the heat pump. We have happy customers too which is always what we aim to achieve as installers!”
Learn more about air source heat pumps
If you are wondering about whether an air source heat pump is right for your home, please explore our Knowledge Hub to access a range of resources and articles which share more insight about how heat pumps work, what life is like living with a heat pump and the benefits they can deliver.
Follow some of our links here to read more:
- Learn about what properties air source heat pumps are suitable for
- Discover our 10 top questions to ask before buying a heat pump
- Read more case studies showcasing Grant air source heat pumps and renewable heating systems in action.
