9' DIY Plug-in Heating Cable for Pipes, Constant Wattage (7W/ft), 120V


Part Number: PTC120-7W-009
This support page provides publications, manuals, specifications, support articles, and common support questions


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Common Support Questions (16)

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Publications and Manuals (1)

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Specifications (15)

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Common Support Questions


Heat trace, heat tape, or heating cable for pipes is typically an electric heating cable that can be attached to the pipe which helps keep non-flowing water pipes in poorly insulated perimeter walls flowing despite harsh winter temperatures.

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No. Do not run constant wattage heating cable through walls, ceilings, or floors. The constant wattage cable must be installed 1/2“ away from combustible material.

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No, as long as it's properly installed. However, improper installation, use, and/or maintenance of electrical heating cable can cause fires, electric shock, and/ or frozen pipes.

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No, heating cable for pipes will use a relatively low amount of power—anywhere from 21W to 210W (depending on length).

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While the entire product is warrantied for 2 years, it is equipped with a built-in thermostat that has a service life of approximately 100,000 activations. The service life of the constant wattage heating cable itself is 20 years.

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Unfortunately there's no set answer for this because it depends on many factors such as the diameter of the pipes, the installation density of the heating cables, the outdoor temperature, the installation of thermal insulation sleeves, etc.

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The highest surface temperature of the heating cable for pipes can be between 70°F and 80°F.

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As the names imply, constant wattage cable uses fixed wattage output per linear foot and does not automatically adjust in response to temperature changes. Self-regulating cable is manufactured with a resistance matrix placed between its 2 buss wires that varies the ohms resistance per linear foot to automatically adjust in response to temperature changes. Learn more about this in our blog Self-Regulating vs. Constant Wattage Heating Cables.

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Heating cable may remain on the pipe year round, but WarmlyYours recommends turning off or disconnecting the power when air temperatures remain above 50°F/10°C. Always inspect the heating cable and its power connection at the beginning of the heating season.

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Only use on water pipes with a length greater than 3‘. Maximum pipe diameter of 1.5“. Never use a cable that is longer than the pipe. Never install constant wattage pipe heat on plastic/PVC/PEX piping unless it is filled with water at all times. Never install on pipes heated above 149°F/65°C such as steam lines.

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By attaching a heating cable to the exterior of a pipe, it will transfer the heat to the pipe to prevent frozen pipes. And with the use of pipe insulation the heat will be evenly spread and won't dissipate as quickly.

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Constant wattage cable cannot be used on plastic pipe unless it is filled with water at all times. Never spiral or wrap heating cable around pipes. Keep the heating cable straight along the pipe. In order to obtain even heat distribution, WarmlyYours recommends wrapping plastic pipe with aluminum foil before applying the heating cable. Never use more than ½“ of fiberglass or other non-flammable pipe insulation because this can cause the cable to overheat and cause a serious fire hazard or electrical shock.

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Ice Shield is 120V and outputs 5W/ft, and is designed for roof and gutter deicing applications.
PRO-Tect is 120V and outputs 7W/ft, and is designed for pipe freeze protection applications.

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Never spiral heating cable on pipes. Apply the constant wattage cable straight along the bottom of horizontal pipe, or the "weather side" of verticle pipe. For pipes 1“-1.5“ in diameter, apply two separate cables on opposite sides of the pipe. Please refer to the installation manual for further information.

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Use good quality electrical tape with a minimum 176°F/80°C temperature rating at 5.9“ (15cm) intervals. Never use metal binding to secure heating cable to pipe.

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Publications and Manuals



Specifications


Electrical

Amps 0.5 A
Cable Type Constant Wattage
Cold Lead Length 2 ft
Connection Method Plug-in
Ohms 228.6 Ohm
Voltage 120 V
Watts 63 W
Watts Per Linear Ft. 7 W

Installation

Maximum Pipe Diameter 1 ½″ (3.81cm)
Minimum Bend Radius 1″ (2.54cm)
Minimum Installation Temperature 14°F (-10°C)

Identifiers

SKU PTC120-7W-009
UPC (GTIN-12) 881308072056

Controls

Thermostat Built-in: ON setpoint 37.4°F (3°C), OFF setpoint 50°F (10°C)

Warranty / Certifications

Warranty 2-year warranty

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