I no longer want to use the Wi-Fi connectivity of my DITRA-HEAT-E-WiFi thermostat. How do I turn off this feature?

There are 2 options to disconnect the thermostat from Wi-Fi

Option 1: Select "User Settings" from the menu, then "User Reset"+E150
Option 2: Select "Installer Settings" from the menu, then "Factory Reset"

Please note that selecting either option will also reset all current preferences and heating schedules.