The deck is at the 8' level, where the base of the oven needed to be. A structure was needed to get the base up to 8'. This became the room and the reason for the sauna.
To clear things up early, the sauna does not share a heat source or any infrastructure with the brick oven other than the walls that support the oven structure.
The following photos may help illustrate how this works:
In addition to the detailing of the stone, a slate roof finishes the exterior and the 'apron' pent-roof sheds rain away from the base of the oven.The installation of the sauna apparatus is yet to come...by others.


