costs of heating apartments in winter in switzerland, energy and economic concept, hand unscrewing the radiator, piggy bank

100 adjusting apartment apartments background bank banknote bill blue burn burner business close cold concept conservation consumption control cost costs crisis domestic economic economy efficiency energy equipment europe european finance franc gas hand heat heater heating home hot household increase indoor industry money north piggy price radiator saving service spower standing stream swiss switzerland temperature thermal thermostat thermostatic union unscrewing warmth winter