66F or 67F at the tstat...but the temp varies a lot by bedroom/kitchen/etc... lots of warm/cold spots in this old box. Kitchen can be near 70F on sunny winter days (winter sun exposure), while the north facing bedrooms are chilly all day. I burn natural gas and my bills run at most $150 (total/winter) and that is with an energy hog 50 gallon electric water hater and 3 little kids who like to waste hot water. 3 bedroom ranch, uninsulated cinderblock basement, walls with maybe an inch of old fiberglass/tar paper insulation.
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