I purchased this thermostat with the environ mat, the item was easy to install (6 wires in total, 2 input(240vac), 2 output (heater wires) and 2 sensor wires). Once wired and powered up it initialized and worked perfectly. I guess you could program it but since it is summer, I am not using the heated floors. Once again, easy to install and easy to program...Perfect.
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