Background: I stayed in various flats as a student. In one we got an astronomical bill for heating. Ever since I have been too wary to put the heating on.
I currently live in a small flat and realistically it shouldn’t cost much to heat. Up to now I set the thermostat to 16 degrees C. But am thinking of treating myself to 18 degrees C.
I keep mine at about 72 F but it’s a highly efficient on demand hot water radiator central heat system with thermostats on each radiator. It’s not that expensive b cause it doesn’t really drop b low 55 f outside
I’m in a bad house so I can’t heat it (50f) or I would spend $1700 a month, therefore I’m using mostly a infrared gas heater to heat the people and not the air.
It’s not at all excessive. A lot of people I know keep their thermostats at 72F . We keep ours at 63-64F, which is about what you do? Any lower and there’s no point.
I have a programmable thermostat for my heating oil. Its set at 60 during the weekdays, 65 in evenings and all weekend. I saved a lot of money since installing it. I’d probably keep it at 60 but the SO likes to be warm when he is home from work.