I am coming from a hot country and I just observe that people here do put their drinks outside at the balcony, should I also put vegetables and fruits outside instead? The temp at home is quite warm due to the heater so I cannot store them just in the kitchen but then putting them outside also seems too freezing cold.

Where shall I put them or should I just place everything inside a fridge? (which include those that i do not normally put inside a fridge, such as onion etc)..
I am just a little bit confused with the heater and cold weather so forgive me if this question sounds as odd as it can be. Thanks!