When connecting the stove, you should pay particular attention to the fact that, in addition to the wall opening in which the stove pipe is connected to the chimney, an extra opening is required for the fresh air supply.
The connection of the external combustion air supply is usually made with aluminum flex pipe and should have the lowest possible resistance. This means that the connection should lead as directly as possible to the outside without many changes in direction.
Please note that it is mandatory for your stove to be approved by the responsible chimney sweep before it is put into operation!