Where can I find a wiring diagram for the Wiser Underfloor Heating Controller? Follow Please find the wiring diagram for the Wiser Underfloor Heating Controller below. Related articles Are there any accessories available with the Wiser Underfloor Heating Controller? Do I need an extra heating channel to use UFH with Wiser? Wiser Installation Guide How many zones can be controlled by the Wiser Underfloor Heating Controller? How many actuators can be linked to one Underfloor Heating zone?