YeloDeer Heavy-Duty In Pipe Heating Cable for Sewer Systems, CSA Certified Self-Regulating with GFCI, Wastewater Pipe Heater, 5W/Ft 120V

Both are in-drain heating cables designed for non-pressurized drain or wastewater lines, but they differ in cable size, application range, and safety features:

IPHC-Dma
• Larger cable diameter for heavy-duty applications
• Suitable for both small drains and larger pipes ≥ 2 in
• Can be used in open drains and, with the Rubber Accessory Kit, also in closed drains
• Includes built-in GFCI protection for enhanced electrical safety

IPHC-Dmi
• Smaller cable diameter, more compact and lightweight
• Best for drains < 2 in
• Designed only for open drain applications
• No GFCI plug (must be used with a GFCI-protected circuit)
• More economical option when GFCI is already provided elsewhere

Usually no. You can insert it directly through the entry into the pipe interior. For longer runs, fish tape or similar tools can help guide the cable deeper.

No, you cannot cut this cable. It is factory terminated and not field‑spliceable. If it’s too long:

Use the rubber sealing unit at the entry to leave some excess cable outside the pipe.

For >3 in diameter pipes, you can turn back / fold the extra length and tuck it back into the pipe.

Measure from the entry point to the farthest section that must stay thawed, add slack for bends, and allow sufficient cable length for the outside sealing section. Then choose the next standard length up.

No. Energy efficiency has nothing to do with voltage.

Energy is billed in watts, not volts. Years ago, 240‑volt systems were called more efficient only because you can place more load on a 240‑volt circuit. This was misinterpreted to mean energy efficiency, which is not the case.

The actual advantage of 240‑volt systems is that they allow longer cable lengths on a single circuit because current is lower at higher voltage, reducing voltage drop and circuit load limitations.

Yes. We provide clear installation instructions with each product, and most homeowners can complete the process. However, for best results we recommend installation by a qualified tradesperson.

Our advanced self‑regulating technology delivers heat only where the pipe is cold and reduces output where it is warm. Actual energy consumption depends on conditions, but this design ensures maximum efficiency. For even greater energy savings, use with a thermostat.

No. Self‑regulating cables adjust their output with temperature changes but do not shut off completely—they idle at a minimum level. To fully shut off the system, unplug it or use a thermostat. We recommend shutting off the system when not needed (e.g., in summer).

No. Once power is restored, the cable automatically resumes operation. It will immediately increase output to thaw any section that may have started freezing during the outage.