Hello) I live in Novosibirsk, Russia! Now we have a cold night. In the afternoon + 5 ° C, and at night -2. My mines with a total capacity of 1,700 watts. stand on a glassed-in balcony. The temperature is now +30 ° C on the balcony, and on the street now + 1 ° C degrees Celsius. Waiting for the winter to see how they warm up the balcony (2 square meters)
I wish i live in this place. In my place 34 ° C in the air ><
Correction: You wouldn't like live here.

You'd like place mining farms here. Winter of 8 month per year is objective reality in Siberia.
To @Sergey-Majner: How you organize the ventilation of the balcony during summer? It's short but it's quite hot. If you have 30C in balcony at even 5C outdoor temperature?