Can the mats be automatically controlled?
Yes. There are automatic controllers that can turn your mat on and off. HeatTrak sells two types of controllers (see accessories). The first is a thermostat controller (EH38) that plugs directly into the outlet. This controller will power the outlet whenever the temperature drops below 38 degrees Fahrenheit. However, once energized, the controller will stay on until the temperature rises above 50 degrees Fahrenheit (maybe not the best option depending on your climate). This controller does not require any professional installation. The second is a snow sensing controller (LCD-1). This device will turn on the mat whenever it senses moisture AND the temperature is below 38 degrees Fahrenheit. This controller must be hardwired into the circuit by a certified electrician. However this controller may not be a good option if you have snow drifts since the controller will not know to energize the mat. Also, the LCD-1 can only handle up to 16 amps of current, so it is usually only effective fo