It is possible to set the flame intensity manually. The exact desired temperature cannot be set.

Yes, the German aluminium bottles fit. The thread is the same. My wife lives in STR, I don't know the other bottle, but I assume it is the same.

The exhaust gases cannot be led to the outside. However, they are harmless because the unit is operated with gas and if it is ventilated from time to time. Of course, it depends on the size of the room. I have already operated the stove for four hours without ventilation and never had the feeling of a lack of oxygen.

The air is not that thin at this altitude. I don't think that's a problem at all.

No. Normal gas bottles, e.g. at the Landi, fit. They can also be large bottles.

10.5 Kg Vitogaz

Yes, gas bottle from Landi connected without any problem.

According to research, the product has the following dimensions: Height: 780 mm Length: 430 mm Width: 480 mm