NOVELTY - The structure has a packing portion whose lower supporting portion (6) mounts and conveys a household installation (1). A top packing material is provided to cover an upper portion of the household installation. The circumference of the lower supporting portion is enclosed with the top packing material. A concrete (12) is placed in the gap of the top packing material and the lower supporting portion and is solidified, while installing the household installation and lower supporting portion on the leveling ground (10) of an installation place.    USE - Structure for installing household installation such as fuel cell power generation unit, air-conditioning equipment and water heater in outdoor.    ADVANTAGE - By utilizing the packing portion used for packing up the household installation as a formwork for forming the base, the installation of the household installation and the foundation is performed simultaneously, after conveyance of the household installation. The necessary for the worker to go to the construction site for multiple times is eliminated. The process number of the installation operation of the household installation is reduced. The need for using the heavy pallet component for conveying the household installation is eliminated so that the process for installing the household installation is performed at low cost. The horizontal state of the household installation is adjusted and the household installation is installed precisely, when the installed household installation is inclining slightly, before placing concrete inside the peripheral frame.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of installing household installation.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of the household installation after completing installation process. (Drawing includes non-English language text)    Household installation (1)    Lower supporting portion (6)    Peripheral frame of top packing material (7b)    Leveling ground (10)    Concrete (12)