| 摘要 |
PROBLEM TO BE SOLVED: To prevent overflowing of generated gas from a space of a cooking room to its adjacent space. SOLUTION: A wall 25 displaceable to first and second moving directions A1, A2 is provided between a partition position 22 for partitioning a kitchen space 3 having a gas cooking appliance 16 and a gas water heater 17 and a living and dining space 4 continued to the space 3 by an upper region 40, and a predetermined retracting position 23 retracted from the position 22 at a ceiling 5 provided to for a horizontally substantially same plane over the space 3 and the space 4 continued to the space 3.
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