If you want a t stat for the cold weather go and get a Stant thermostat number 532090. It is a wide flange that is a 195 degree. Will run alot warmer and doesn's cycle much. Only thing is, is when it starts to get warm out you need to change it back because that sucker will definately get warm. I change to that one every fall and back to stock every spring. Works great.
WD