Ключевые слова: appliance, background, boiler, building, central, circulation, construction, control, design, energy, engineering, equipment, fixing, heat, heater, heating, home, hot, house, industrial, industry, installation, installing, insulation, interior, man, modern, office, person, pipe, pipeline, pipes, plastic, plumber, plumbing, pump, room, service, steel, supply, system, tank, technology, tube, valve, valves, water, work, worker,