Unlike single pole thermostats, double pole thermostats provide a true "OFF" position. Therefore, power to the heater can be completely cut "OFF" or the heater can be "ON" at any set temperature point chosen.
Comments about Dimplex Integrated Double Pole Thermostat Kit (TWHT2):
The thermostat works fine. The double line break feature is, imo, safer. It is used with the Dimplex TWH2031CW wall heater. However, one of the online pdf installation instructions calls for an opening width of 7 5/8." This is clearly incorrect, as the INCLUDED instructions call for a width of 8 5/8," which is correct. I prepared an incorrect opening, then had to hog out an existing stud due to aforementioned misprint. Otherwise, the product does a terrific job. Sylvane is a first class supplier, and it was my pleasure to do business with them.
Bottom Line Yes, I would recommend this to a friend