9milelake heat roof gutter de icing ice snow melter cable tape kit with thermostat.
Cable over gutter.
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However if you need to use the cable inside the downspout and then run it back along more gutter or roofline double the cable length measured for the downspout.
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The heating cable operates at 120 volts and therefore power saving.
Begin installing the cable at the corner of your roof running in a zigzag pattern to create 15 triangles.
You have to drop the middle of the cable through the downspout so you need twice as much.
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Secure it with brackets connected to each shingle at the bend of the cable.
Moreover it is self regulating and you do not need to shut it on or off.
Run the cable through the gutter on the inside and down the downspout so that water will continue to flow from the roof to the gutters to the downspout.
If the end of the heat cable stops in the downspout use that measurement.
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