When setting your controls, consider the factors affecting heat pump performance. This includes the space heating and hot water demand of the house, and its level of insulation and airtightness. Open the thermostat radiator valves (TRVs) completely (except in rooms where you want it to be cooler). Partially or fully closed TRVs can increase the heat pumps energy consumption.

Please refer to your user manual if you require any further information- If you experience alarm texts from the heat pump, contact your installer.