To stably support a structure which is liable to receive an unbalanced load caused by the maldistribution of structure equipment, and to prevent the breakage of the foundation of the structure.
The foundation 70 of a water heater 10 is constituted of a flat board 14 and a base 72. The flat board 14 constitutes the undersurface of a housing 12, and the base is composed of a square foundation frame 74, a plurality of cross beams 76, and a plurality of stringers 78. The square foundation frame supports the lower part of the outer edge of the flat board, and the cross beams 76 and the stringers 78 are arranged in a direction where they intersect each other. The cross beams 76 and the stringers 78 are joined to each other in an intersecting state so that their top surfaces can form plane surfaces, and the board 14 which is fixed on the top surface of the base 72 is fixed. The space between the cross beams or the stringers is made small in the installation area of a compressor 15 which is the heaviest load, and the compressor is supported by a plurality of cross beams 76 or stringers 78. The space between the cross beams 76 or the stringers 78 is made large in the installation area of other equipment which is a light load, and the other equipment is supported by the square foundation frame 75 and one cross beam 76 or one stringer 78. By this, weight imposed on each of the beam materials is averaged, and the water heater 10 is supported stably.
ONO YUJI
NINOMIYA YUUKI
YONEDA HIROKAZU
KATAOKA MASAKI
FUJII HIDERO
