There are two possible approaches, depending on the design of the balcony door:
Option 1: Balcony door as an exterior door
If the balcony door is similar in construction to a typical exterior door, it can be entered as such in Autarc — or the value of an existing exterior door can be increased accordingly.
This approach is especially recommended if the door has similar insulation properties to a standard exterior door.
Option 2: Balcony door as a window
If the balcony door resembles a window — for example, in terms of glazing and frame structure — the window area should be adjusted.
This means increasing the total window area by the surface area occupied by the balcony door.