To provide a fireproof wall-fireproof floor device capable of placing a radiation heat emitting type combustion apparatus without performing fireproofing work on a wall and a floor as combustible materials, to solve a problem that large-scaled work for making the floor and the wall incombustible is required by a fire protection law in case when a radiation-type stove such as a pellet stove is installed near a wall inside of a room, which needs huge construction cost and a long construction period, and further an accidental fire often occurs because of wrong fireproofing work.

This fireproof wall-fireproof floor device has the fireproof floor 6 on which the radiation heat emitting type combustion apparatus 10 is loaded, and which is made of an incombustible material, has a space 6a inside thereof, and lined on a floor of a building, and the fireproof wall 7 which is vertically disposed at a desired position of the fireproof floor 6, made of the incombustible material and has a space 7a communicated with the space 6a of the fireproof floor 6 inside.