The Passiv Smart Thermostat (PST) only connects to your heat pump, zone valves, circulation pump, and the immersion element in your hot water tank. Any other devices installed in your home will not be optimised or coordinated with the control signals sent by the PST.
If you have devices in your home which provide independent control signals to your heating system, e.g. -
- Independently timed immersion heater
- Solar diverter
These devices can be used alongside the PST but you will be unable to view their operation in the Passiv app, and their operation will not be coordinated with your scheduled heating and hot water. This may limit the effectiveness of the PST's optimisation algorithms and reduce your overall heat pump efficiency.