The tiled stove is a pleasant, nice source of heating. However, it gives off its heat not only in the places we require, but it heats in virtually all directions. Also then, when warm air rises upwards, radiant heat is given down. When sitting in front of the stove we enjoy its warmth, it is also radiated backwards.
This also leads to heating of the floor and walls, next to which stands the stove. Their strong heating may, as a result of the associated phenomenon of thermal expansion, lead to damage to the building substance.. In order to eliminate or reduce this adverse phenomenon, appropriate solutions should be provided for. For the floor, it is enough, as a rule, to provide ventilation on the lower side of the heating insert or foundation furnace, which allows heat dissipation. The heat dissipation of the furnace towards the walls is much stronger than towards the floor. Therefore, it is necessary to protect them from the influence of heat. For two-shell foundation furnaces, which are properly planned, the wall does not heat up above 60°C, if adequate rear ventilation is provided. In this case, wall insulation is not required.
There are several options for protecting the wall from heat. If we have enough space, we can build a thin intermediate wall between the tiled stove and the wall, which on the front and back sides must be ventilated. With this solution, the heat is retained in front of the wall of the room. The same effect can be achieved with, just like the intermediate wall, set sheet metal. If we want to save space, we should attach to the insulated wall a mineral wool plate with a thickness of approx.. 6 Cm. When buying them, we must pay attention to the manufacturer's data, concerning non-flammability and fixability. Between wall insulation, and all heated parts of the tiled stove must flow freely air, which allows the heat collected on the outer surface of the insulating material to be transported away.

For air flowing within the tiled stove, and thus also to the respiratory tract, fibers of insulating material may enter. Therefore, insulation boards should be covered from the outside with aluminum foil suitable for use in construction or heating devices.