Optional thermal insulation for building a smart fireplace into any through room divider of non-flame-resistant materials.
It is installed after the installation of drywall (or other wall material).
You can safely build a stone into a through room divider with plasterboard, chipboard, wood and other non-flame-resistant materials.
The peculiarity of this case is that it allows you to install the fireplace so that it can be seen from different sides, from adjacent rooms.
