FIELD: protection and cleaning of surfaces of ferromagnetic materials from deposits; protection and cleaning of inner surfaces of water heaters, steam boilers and hot-water boilers from scale. SUBSTANCE: method includes subjecting ferromagnetic surface of steam and/or hot-water and/or heat-exchange equipment and simultaneously feed pipe line of equipment to action of magnetic pulsed field by pulse bursts at frequency of 0.1 to 10 Hz for forming magnetostriction effect and for magnetic treatment of water. EFFECT: possibility of cleaning surfaces and excluding scaling over entire period of operation. 2 cl, 2 dwg
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