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Boiler with temperature regulator for heating cold water. Red light indicator comes on - boiler works to heat the water. Boiler heats water from cold water supply system
Professional male engineer in boiler room checking pipes of heating system equipment. Industrial, worker, specialist.
Focused male engineer in boiler room uses laptop, presses buttons, monitors heating system equipment. Industrial workplace, safety, technology.
Wide aerial view of a paper and pulp plant showing active chimneys and industrial boilers, releasing steam and pollutants into the air, reflecting environmental and ecological concerns

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