Overview
Compact In-Pipe Heating Cable for Drain Lines, Condensate Lines & Low-Pressure Wastewater Pipes
YeloDeer IPHC-DMi is a compact self-regulating in-pipe heating cable designed for open drain lines, HVAC condensate drains, high-efficiency furnace drain pipes, roof drainage pipes, gray water discharge lines, low-pressure septic lines, and small sewer or wastewater drain applications where freezing can block water flow during winter.
This cable is inserted directly into the pipe opening without complicated fittings. Its slim 0.3 × 0.19 in cable profile makes it easier to route through smaller drain openings, while the corrosion-resistant fluoropolymer outer jacket helps protect the cable in wet and wastewater environments.
It is a practical freeze protection solution for customers who need a smaller, flexible, and cost-effective drain line heating cable for open or low-pressure drain systems.
Key Benefits
• Designed for open drain lines, condensate drains, furnace drains, gray water lines, and low-pressure wastewater pipes
• Compact cable size for easier insertion into smaller drain openings
• Self-regulating heating cable adjusts heat output as temperature changes
• 3W/ft heating output at 50°F / 10°C
• Increases output in colder conditions to help prevent freezing
• Corrosion-resistant fluoropolymer jacket for wet and drain environments
• 6 ft power cord included
• Standard lengths from 5 ft to 75 ft
• Can be used with pipe insulation for better freeze protection
• Suitable for many PVC, ABS, and metal drain pipe applications
Best For
• HVAC condensate drain lines
• High-efficiency furnace drain pipes
• Open drain pipes
• Roof drain and downspout drain lines
• Gray water discharge lines
• Low-pressure septic drain lines
• Small sewer drain applications
• Drain lines under dirt roads or exposed outdoor areas
• Cabin, garage, attic, basement, and utility drain freeze protection
Important Before You Order
This product is designed for open or low-pressure drain applications. It is not intended for sealed pressurized water supply pipes or potable drinking water lines.
If your pipe must remain sealed after the cable is inserted, or if you are working with a larger sewer or septic line that needs a sealed entry point, please choose YeloDeer’s Heavy-Duty Sewer Pipe Heating Cable instead.
For pressurized potable water pipes, please choose YeloDeer’s standard in-pipe heating cable or Y-fitting in-pipe heating cable.
Self-Regulating Does Not Mean Auto-Off
This cable automatically adjusts heat output based on surrounding temperature. It produces more heat in colder areas and reduces output in warmer areas.
However, self-regulating does not mean the cable turns itself completely off. To stop heating completely, unplug the cable or use a compatible thermostat.
For automatic seasonal operation and energy savings, we recommend using this cable with a pipe heat tape thermostat, sold separately.
Length Selection Reminder
Choose a cable length based on the section of pipe that needs freeze protection. For pipes longer than 20 ft, fish tape or a similar guide tool may help with installation.
The cable cannot be cut or shortened in the field. If you need a special length, contact us at yelodeer@yelodeer.com.
For more details on the differences between our pipe heating solutions, check our blog: How to Choose the Right Heat Cable for Your Pipes
Applications & Compatibility
Recommended Applications
YeloDeer IPHC-DMi is designed for small to medium open drain and low-pressure wastewater applications where ice buildup may block flow during winter.
Common applications include:
• HVAC condensate drain lines
• High-efficiency furnace drain pipes
• Attic condensate drains
• Basement drain lines
• Garage drain lines
• Roof drainage pipes
• Downspout drain pipes
• Open sewer drain lines
• Septic low-pressure drain lines
• Gray water discharge pipes
• Outdoor drainage pipes
• Drain lines under dirt roads
• Cabin and utility drain freeze protection
This product is especially useful when a drain line may be empty most of the time but still needs freeze protection when water or condensation flows through it.
Pipe Compatibility
This cable can be used with many common drain pipe materials, including:
• PVC
• ABS
• Metal drain pipes
• Condensate drain tubing
• Low-pressure wastewater pipes
• Septic and sewage drain lines where the pipe route is compatible
The cable size is approximately 0.3 × 0.19 in, making it suitable for many smaller open drain applications.
Before installation, confirm that the pipe has enough internal space for the cable and that the cable can pass through the route without being forced.
Open Drain vs Sealed Pipe Applications
This product is best for open drain applications where the cable can be inserted directly into a pipe opening, drain outlet, or accessible pipe end.
It is not recommended for sealed pressurized pipe systems.
If your wastewater pipe needs to remain sealed after cable insertion, or if you need a more robust solution for 2 in and larger sewer or septic pipes, choose YeloDeer’s Heavy-Duty Sewer Pipe Heating Cable.
IPHC-DMi vs Heavy-Duty Sewer Pipe Heating Cable
Choose IPHC-DMi if you need:
• A compact cable for smaller open drain lines
• A flexible solution for HVAC condensate or furnace drain pipes
• A cost-effective cable for open drain freeze protection
• A cable for low-pressure drain or gray water discharge systems
• A cable that can be inserted directly without sealed fittings
Choose the Heavy-Duty Sewer Pipe Heating Cable if you need:
• A larger cable for 2 in and larger sewer or septic pipes
• Built-in GFCI plug protection
• A more powerful 5W/ft heavy-duty cable
• A sealed pipe installation
• Optional 3 in or 4 in sealing accessories
• A more robust solution for severe sewer or septic freeze problems
When Not to Use This Product
This product is not recommended for:
• Pressurized drinking water supply lines
• Sealed pressurized pipe systems
• 1/2 in PEX water supply pipes
• Pipes with blocked, collapsed, or unknown internal conditions
• Pipes with very sharp bends where the cable cannot pass safely
• Pipes where the cable could be crushed, cut, or damaged
• Applications requiring a sealed pipe entry point
For sealed wastewater applications, choose the heavy-duty sewer pipe model.
For potable water lines, choose a potable in-pipe heating cable.
Specifications & Sizing
Product Specifications
Product Type: Compact self-regulating in-pipe heating cable for drain lines
Model: IPHC-DMi
Application: Open drain lines, condensate drains, furnace drains, gray water discharge, and low-pressure wastewater pipes
Heating Output: 3W/ft at 50°F / 10°C
Low-Temperature Output: Approximately 6W/ft at 32°F / 0°C or below
Voltage: 120V
Cable Type: Self-regulating heating cable
Outer Jacket: Corrosion-resistant fluoropolymer jacket
Cable Size: Approx. 0.3 × 0.19 in
Power Cord Length: 6 ft
Minimum Bend Radius: 1 in at 32°F / 0°C
Maximum Stable Cable Temperature: 60°C / 140°F
Recommended Use: Open or low-pressure drain applications
Standard Lengths: 5 ft to 75 ft
Custom Lengths: Available by request
Field Cutting: Not allowed
How to Choose the Right Length
Measure the section of drain pipe that needs freeze protection. Start from the cable entry point and measure to the farthest area where freezing may occur.
Before choosing a length, check:
• The location of the pipe opening
• The length of the exposed or freezing section
• Whether the pipe has bends
• Whether the pipe is open or sealed
• Whether the cable can be inserted easily
• Whether the outlet is close enough for the 6 ft power cord
• Whether fish tape may be needed for longer pipe runs
For pipes over 20 ft, we recommend using fish tape or a similar guide tool to help insert the cable smoothly.
The heating cable cannot be cut or shortened. If you are between two sizes, choose carefully based on the pipe layout.
Total Cable Length Reminder
The listed size refers to the heating cable length.
Each product also includes a 6 ft power cord.
For example:
• A 5 ft heating cable has an approximate total cable length of 11 ft
• A 15 ft heating cable has an approximate total cable length of 21 ft
• A 50 ft heating cable has an approximate total cable length of 56 ft
Custom Lengths
If you need a length that is not listed, please contact us at yelodeer@yelodeer.com.
Please include:
• Required heating length
• Pipe diameter
• Pipe material
• Application type
• Entry point photos
• Whether the pipe is open or sealed
• Any bends or difficult sections in the pipe route
Short custom lengths, such as 3 ft, may be possible, but they may cost more than standard sizes due to custom production requirements. In many cases, the standard 5 ft option is the most cost-effective choice.
Power and Amperage Note
Power draw depends on cable length and surrounding temperature.
For example, a 50 ft cable uses approximately 1.25A at 50°F / 10°C and approximately 2.5A in colder conditions near 32°F / 0°C or below.
For longer cables or custom applications, please confirm your outlet and circuit capacity before installation.
Installation & Accessories
Basic Installation Overview
YeloDeer IPHC-DMi is designed for simple insertion into open drain lines and low-pressure drain systems.
Typical installation steps:
1. Identify the section of pipe that needs freeze protection.
2. Confirm that the pipe is open, accessible, and not blocked.
3. Insert the heating cable directly into the pipe opening.
4. For pipe runs over 20 ft, use fish tape or a similar guide tool if needed.
5. Avoid forcing the cable through sharp bends or restricted areas.
6. Keep the cable inside the pipe section that needs freeze protection.
7. Insulate exposed pipe sections if needed.
8. Plug the cable into a properly protected 120V outlet.
9. Use a thermostat if automatic temperature control is desired.
Important Installation Notes
• Do not cut the cable.
• Do not splice the cable.
• Do not crush or sharply bend the cable.
• Do not force the cable through blocked or collapsed pipe sections.
• Keep the minimum bend radius at 1 in at 32°F / 0°C.
• Do not use this product in sealed pressurized water supply pipes.
• Do not use this product for potable drinking water lines.
• For outdoor power connections, protect the outlet and plug from rain, snow, and standing water.
• For complex sewer, septic, or sealed drain applications, professional installation is recommended.
Using Fish Tape
For longer pipe runs, especially over 20 ft, fish tape can help guide the cable through the pipe.
Make sure the fish tape is longer than the heating cable and that the pipe route is clear before installation.
Do not pull or force the cable through tight bends.
Using Pipe Insulation
This heating cable can be used with suitable pipe insulation, such as drain line insulation, to improve freeze protection.
Insulation is especially helpful for:
• Attic condensate drain lines
• Outdoor exposed drain pipes
• Basement or crawl space drain lines
• Roof drainage pipes
• Pipes exposed to wind or freezing air
Make sure the cable is installed properly before adding insulation.
Using an Extension Cord
If the pipe is far from the outlet, a suitable extension cord may be used.
For safer operation, use an extension cord that is 16AWG or thicker and suitable for the environment where it will be used.
Do not place plugs, connectors, or extension cord connections in standing water, snow, or direct rain exposure.
FAQ & Resources
Additional Product Questions
1. Can this cable be used with pipe insulation?
Yes. This cable can be used with suitable drain line insulation, such as foam or Armaflex-style insulation, especially for attic condensate drains, exposed outdoor drain pipes, and other areas where freezing air may affect the pipe.
2. Can this cable be used in an empty pipe?
Yes. The self-regulating cable adjusts heat output based on surrounding temperature. It can be used in drain lines that may be empty most of the time, such as condensate drains or intermittent wastewater drains.
3. Can the cable touch itself or overlap?
Because this is a self-regulating heating cable, it can safely touch itself in normal installation conditions. However, avoid sharp bends, tight knots, crushing, or forcing the cable into restricted spaces.
4. Can this cable be used in a 4 in ABS or PVC drain pipe?
Yes, it may be used in a 4 in ABS or PVC drain pipe if the pipe is open, accessible, and the cable can be inserted safely.
However, for larger 4 in drainage systems, roof drainage systems, or sealed sewer/septic applications, YeloDeer’s Heavy-Duty Sewer Pipe Heating Cable may be a better choice.
5. Can this cable be used in a toilet drain line?
It may be used in some larger toilet drain or waste pipe applications if the pipe diameter is suitable and the cable is installed smoothly without sharp bends.
The cable has a smooth outer jacket, which helps reduce the chance of catching debris. However, the pipe should be clear before installation. Do not install the cable in a pipe that is already partially blocked or prone to clogging.
6. Can this cable be used in a roof drain or downspout drain?
Yes. This product can be used in many roof drain, gutter drain, or downspout drain applications if the drain line is open, the cable route is accessible, and the electrical connection can be protected from moisture.
7. Can I leave extra cable near the pipe opening?
If the cable is slightly longer than needed, extra cable may be managed carefully near the pipe opening or inside a suitable larger pipe section, as long as it is not sharply bent, crushed, or placed where it may be damaged.
Do not cut the cable.
8. Is this product suitable for 1/2 in PEX pipe?
No. This product is not recommended for 1/2 in PEX water supply pipes.
For pressurized potable water pipes, use YeloDeer’s potable in-pipe heating cable and confirm the minimum pipe size and fitting opening before ordering.
9. What should I do if I am not sure which product to choose?
Please email yelodeer@yelodeer.com with:
• Pipe type
• Pipe diameter
• Required heating length
• Application photos
• Whether the pipe is open or sealed
• Whether the pipe is for condensate, drain, sewer, septic, or potable water
Our team can help you choose between IPHC-DMi, the Heavy-Duty Sewer Pipe Heating Cable, and potable in-pipe heating cable options.
Related Resources
For automatic temperature control, use with YeloDeer Pipe Heat Tape Thermostat.
For sealed sewer or septic pipe applications, choose YeloDeer Heavy-Duty Sewer Pipe Heating Cable.
For pressurized potable water lines, choose YeloDeer standard in-pipe heating cable or Y-fitting in-pipe heating cable.
For product selection help, contact yelodeer@yelodeer.com with pipe photos, pipe diameter, required length, and application details.
Temperature Controller Recommendation
The cable can operate without a thermostat, but a thermostat is recommended for automatic operation and energy savings.
A compatible thermostat can help:
• Turn the system on only when needed
• Reduce unnecessary energy use
• Avoid manual plugging and unplugging
• Set a preferred operating temperature range
• Improve convenience during winter
The thermostat is sold separately.
Real Customer Installations
Real Customer Installations
The installation photos below show how customers use YeloDeer IPHC-DMi compact in-pipe heating cable for drain line freeze protection in real applications.
Common installation examples include HVAC condensate drains, furnace drain lines, roof drainage pipes, open drain lines, low-pressure wastewater pipes, septic drain lines, and outdoor drainage systems.
Every drain system is different. Pipe diameter, entry point, pipe condition, bends, outlet location, and exposure to freezing air can all affect installation.
Before ordering, please check:
• What type of drain line you have
• Whether the pipe is open or sealed
• The pipe diameter
• The length of pipe that needs freeze protection
• Whether the pipe has sharp bends or restricted areas
• Whether fish tape is needed for installation
• Whether the pipe should be insulated
• Whether the outlet and plug can be protected from moisture
If you are unsure which cable length or model to choose, send your installation photos and pipe details to yelodeer@yelodeer.com. Our team can help review your application before you order.
