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How far can you space snow melting cables?

Snow Melting Cable – WSM

Warmup recommends spacing snow melting cable at 3″ to deliver 50 watts per square foot. At 3″ spacing Warmup snow melting cable can deliver optimum results even under the harshest conditions.

Indoors or out, spacing heating cable further will decrease the heat output resulting in slower ramp-up times. Please refer to the chart below for a spacing guide.