Hot watt industries, since 1987 have been the utmost manufacturer of industrial heating elements. Oil immersion heaters along with check nut and washers, an unique product which is steel tubular sheathed, brazed to a c.I. Flange, provided with thermostat pocket, earthing terminals and cap. Oil immersion heaters are of great use for fuel oil heating, oil circulating, oil jacketed kettles, for systems which supply hot oil to plastic and chemicals processes and similar equipments. They are available in various ranges.