The Household Utilities ClipArt collection offers 100 illustrations arranged into 3 galleries: electrical systems, heating and cooling, and plumbing.
The Electrical System gallery offers 11 illustrations of household wiring, switches, and other electrical elements. For electrical lighting, please see the Electric Lighting gallery.
The Heating and Cooling ClipArt gallery offers 52 illustrations of household heating, cooling, and ventilation systems.
The Plumbing ClipArt gallery offers 37 illustrations of household plumbing fixtures and related items.