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Heatrex tubular, electric switch rod hairpin heaters are time tested, efficient and cost effective for the removal of snow and ice from switches, the company says. They are formed to a “U” shape with terminations at one end. These units are mounted between the ties to melt ice and snow in the switch rod area. One, two or three heaters are used, depending on the size of the switch. These heaters are generally held in place with hardware (plates and clamps) attached directly to the ties.