Maybe they have their thermostats set at 20 and are working more to keep those 20 whilst heating your apartment too. Even if they set their thermostats at 25 th

Maybe they have their thermostats set at 20 and are working more to keep those 20 whilst heating your apartment too. Even if they set their thermostats at 25 they would be working extra to compensate. Is there a mandatory maximum temperature in your country?