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Hi guys!
I have brought two ficus into my office and I have slight concerns regarding the positioning and I'd like to double check.
The image of the ficuses can be seen here:

Few things: they're turned towards south, so they'll have enough of the sun. They're not directly exposed to radiator heat, since the shelf is quite wide. But the main concern is regarding the heating of the room through air ventilation. On the right side of the shelf, abouth 3,5m above(!) the shelf there's an air vent, so the heated air is blown into the room. The amount is not huge, so on the level of the shelf it's not possible to feel there's anything blowing at all.
But bonsais are much more sensitive, so i'm wondering if this could eventually be a problem? Does anyone know, can you give me some tips?

Thanks in advance!
Gasper

Hi Gasper, I'd rather keep it outside as much as possible to let it really thrive.
However, I keep my own ficus retusa within my house for 3-4 months during winter (say Nov to Feb) when temps are constantly below 10 degrees Celsius (I live in Milan, northern Italy), and it's doing well since years.
When inside I always keep a humidity tray, filled with wet gravel, below the pot, to prevent air from being too dry.
I would be careful about the air vent which blows warm (and dry) air inside the room. - keep it as far as possible from it!