Herschel Ultra iQ Smart energy-saving accessories - Instructions Richard Martin 01 February 2023 16:48 Updated PIR Sensor Related to Thermostats Controls Related articles Herschel XLS Thermostat Instructions Herschel iQ Thermostat Instructions Radio Emissions Directive Conformity - Herschel Controls Can I pair multiple heaters to a thermostat? How do I unpair an existing pairing?