For whatever reason, I’m in the same situation, but in a relatively modern building where the hallways are warmed and slightly positively-pressurized for fire/s

For whatever reason, I’m in the same situation, but in a relatively modern building where the hallways are warmed and slightly positively-pressurized for fire/smoke mitigation, so there’s a constant slight heat source coming in from the hallways. Combine that with good insulation, some base loads and southern exposure and we go all winter running the hvac for just a few hours. It would be too hot if we ran the heat. This is in Toronto where it’ll average a bit colder than continental Europe.