I suppose due to my lowly income status and the kinds of houses i own or rent the furnaces have always been a simple 2 wire affair. I used some modern wizardry to get this stat to work since it needs power from the furnace. I am hoping that when i upgrade this furnace i can use the full potential of the thermostat as bridgeman mentioned. I would like the idea of being able to cycle the fan since from March on i get a lot of sun in through my large south facing window and it keeps the house warm mostly but it keeps the furnace off and the temp upstairs around 20 to 21 degrees. For now i have to put in a replacement tooth so thats 5g's slated for the furnace i dont have this year.
