Good points. There are a variety of houses/buildings built during various periods of time according to various codes and standards, but if you’re within city limits (US/Canada) then your house was probably built after the 70s/80s and has decent insulation. If there is an issue with the central heating in that kind of home, I 100% agree that there’s an issue that you might want a GC to fix. If your house/building is old, or if landlords don’t want to fix shit (and complaints are too much of a hassle), then I can also see that space heating can be a reasonable bandaid: at least until you get out of that situation.

Condensation is something I also forgot. That’s important for you electrical system too. In my experience in electric distribution/collection, usually we’d want to keep termination points around 20/68, but thermostats could drop to as low as 10/50 before kicking in. Certainly keeping a house colder than 10/50 is a bad idea, but between that and normal 20/68 I’d think would be fine. You also have the risk though that your thermostat is a single point of measurement for the system. Other parts of a house might be cooler/warmer, so I’d agree with the advice to keeping your house warmer than 15/59, unless it supports multi-unit dwellings.

Good convo, cheers