Are there actually regulations in regards to heating in rentals? What are the best measures i can take to ensure heating is turned on?
I do wonder why if you do not have outside shutters to keep the cold out, heat in, why you do not get some curtains to keep the cold out from the glass doors/windows.
We are on the top floor of older building, heating is not on yet. Sometimes recently the nights have been on the chilly side, but we have a small fan heater we use that takes the chill off. Whilst you find out the facts you might like to get yourself one. The one we have is also a fan, we can use in the summer. They are not expensive & is reasonably small & light so does not take up much space in or out of use.
Anyway no idea of the temperatures in Geneva and hopefully someone else can give you the advice you seek.
I would love to get a heater but the rental contract explicitly forbids it. I don't know what the consequences of breaking that rule would be. Curtains would help but not much because the entire apartment is cold, including other rooms without a balcony. Im really used to cold temperatures being Canadian and if it were 15 degrees at night I wouldnt even mind. But its like there aren't walls its so cold.
Hope at least you have plenty of hot water.
Put on a few layers of clothing. I have been know to sleep with a wooly hat on!!
Much colder here in my native Jura- but with proper windows, good insulation and blazing woodburning stoves and central heating and DRY cold not soggy damp wet cold.
Today it was 22°C in my Gemeinde/commune and I live at higher elevation than you (2500 ft vs ~1200 ft in Geneva).
Get some Tesa insulating tapes [see, even the cat is happy ] from your local Jumbo, Coop brico loisirs or Migros Do-it and seal your windows.
It's a waste of energy if there are air infiltration leaks from your windows in cold winter, and your apt won't be properly heated!
Good luck and enjoy your time in Switzerland!
And I would definitely invest in heavy curtains and/or close the shutters at night - does the apartment warm up fast in the daytime too?
Do you have a multi-room apartment? For cold nights we isolate each room (close all the doors) and the doors all seal with minimal airflow because they all have raised wooden doorsteps (sometime a hazard for guests who are used to flat floors).
Do you have a thermometer in the house? I would perhaps record it over a few nights as evidence of how cold the apartment is getting.
There definitely was a cool change here in Zurich a couple of weeks back - the temperature was quite nice this afternoon but is definitely dropping overnight...