Heat pumps are part of the Government's strategy to reach net zero carbon emissions by 2050. However, the technology generates noise, and can operate during the night and day. As a result, it has the potential to cause significant adverse effects to people living nearby. This briefing note provides guidance for those thinking about purchasing a heat pump in order to avoid significant adverse noise impacts associated with their use. More detailed information for installers is in our practitioners note.             November 2022