The thermostat is the property of the homeowner. In a purchased home, that is you, and in a rented property, it is the landlord.
If you want to replace the thermostat, we recommend doing so in consultation with an installer. As your energy supplier, Vaanster cannot provide advice on this matter. The thermostat affects the operation of your underfloor heating.
Tip: If you are looking for more information about the thermostat, the thermostat's manual can be helpful. Many manuals are available online.