My apartment mandates 23C in most rooms, 25C in one. Also, once you hit 16C, you get rapidly growing mold everywhere due to increase in humidity compensating lower temperature.

I don't know what you apartment mandates, but the rest of the post is simply not true.

We keep our heat at 16°C during the day, 15°C at night. We don't have any mold issues.

Furthermore, humidity drops with temperature, as cooler air can't hold as much moisture as warm air.

It's a problem if humidity on the place is high and building is insulated crappier.

> humidity drops with temperature, as cooler air can't hold as much moisture as warm air.

This encourages mold

That can lead to water condensing on other surfaces which on the right surface can start mold growth. Wallpaper, exposed wood, stucco walls and some painted surfaces are all subject to this.

That is really cold, but the temperature I would keep an unused house at. If I tried to do that in our current place, my family would be extremely angry - we have it at 20 and even then I get complaints.

> We keep our heat at 16°C during the day, 15°C at night.

Why would you do this to yourself? I meaning living in such woeful conditions.

Your apartment mandates rooms stay at least 73.4 degrees F? 77 in another? I'd be wearing a tanktop indoors at all times. I'm having a very hard time believing this is true.

Well my landlord was repeatedly explicitly pointing out these in the contract. I guess he doesn't want this luxurious apartment to degrade and lose value.

If it were my apartment, I just wouldn't do it. If the heating were centrally controlled, I'd open up the windows. 77F is simply way, way too hot inside, unless it's the summertime (and even then I'd be wearing shorts). That's insanely hot, and the idea of wasting all that energy to maintain a literal sauna inside your apartment is insane.

It's a common clause in rental agreements so that any mold problem can be blamed on the tenant because obviously they didn't heat their rooms to some ludicrous temperature while also opening the windows ten times a day.

You got an apartment that was so badly designed wrt air flow that it needed 23C temp every second of every day?

Whoops