Mechanical room

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A mechanical room,^[1] boiler room or plant room is a technical room or space in a building dedicated to the mechanical equipment and its associated electrical equipment, as opposed to rooms intended for human occupancy or storage. Unless a building is served by a centralized heating plant, the size of the mechanical room is usually proportional to the size of the building. A small building or home may have at most a utility room but in larger buildings, mechanical rooms can be of considerable size, often requiring multiple rooms throughout the building, or even occupying one or more complete floors (see: mechanical floor).

Technical rooms in residential houses typically house technical equipment such as air handling units, central heating, electric panels or water heaters, or gives easy access to utilities such as a building's internal stop-tap for water supply, inspection holes for greywater or sewage lines.