I have the thermostat set to 65 all the time, but my main source of heat is a pellet stove, so when I’m home it’s usually 70-72 in the house. I shut the pellet stove down when I work and am not home. Used about 1/4 tank of oil so far this winter most likely because it’s been unseasonably warm. Feeling like this Friday-Saturday the stove will be struggling to keep the house at 65