I try not to think about my heat bills in the winter. I do like it comfortable, and the thermostat is around 68-72 most of the winter, once I finally get the thing going. My first year in this house (about 8 years ago) I nearly fell on the floor after my first Dec-Jan bill - egads!!! I'm on the "budget plan" now, paying 200x my actual July usage in July to balance out the solstice deep-freeze.