Heat-Line ®

Heat-Line is an advanced freeze protected pipe system supplied with the self-regulating heat trace factory installed inside of 75 PSI CSA approved polyethylene pipe. Heat-Line is ideal for new installations or for older water systems where new pipe is required. Heat-Line can be used in a variety of water supply pipe applications including, cottages, homes, resorts and farms. It can be shallow buried or remain above the ground with the use of pipe insulation. The Heat-Line system is truly a freeze protected water supply system, adaptable to all areas where natural frost protection cannot be achieved. Even pipes that are exposed to free air such as over rocks or under buildings, can have reliable running water year round.


The Heat-Line product combines the advanced in-pipe self-regulating Retro-Line heating cable system with 75 PSI certified CSA polyethylene pipe, factory installed inside the pipe and ready for installation. Just roll out the pipe and hook up to your water system for a quick and easy install. 


The Heat-Line system is a job-ready freeze protection pipe supplied pre-assembled ready for installation. To install, simply roll out the pipe and connect to your water system.

Heat-Line is ideal to provide a safe and reliable solution to new applications where pipe has not yet been installed or where old systems need to be replaced. Common installations include water supply from wells, lakes, rivers as well as building to building.

Heat-Line can be used as a system to prevent freezing or as a precautionary system to use only if a freeze-up occurs. Even in applications where the pipes are intended to be dry for short or extended periods of time such as drain back systems, the Heat-Line presents no danger of overheating or melting the pipe.

Heat-Line employs the unique and advanced performance of self-regulating electrical heat trace cable technology. The Heat-Line system can effectively increase heat and energy output to every point microscopically along its length which are cold and simultaneously reduce heat and energy output to points which are warm. You never have to worry about the Heat-Line heat tracing cable overheating causing risk of melting and fire because of the self-regulating heating cable technology. Heat-Line gives you the peace of mind of reliable freeze protection without the risk.

To further increase the energy efficiency of your Heat-Line heating cable system, it is recommended to add thermal insulation and a thermostat. The additional thermal insulation works to reduce heat loss, and the thermostat allows you to duty cycle your Heat-Line system based on pipe temperature. Both accessories combined can increase energy efficiency by as much as 80%.

  • For high pressure or constant pressure water supply pipes see CARAPACE.
  • For longer systems see CARAPACE.

Heat-Line is an internal heat tracing system including pipe designed to provide reliable freeze protection. Examples include but are not limited to:

  • Lake and river water supply
  • Well water supply including dug, drilled and artesian wells
  • Building to building water supply
  • Suitable for jet pump and submersible pump applications

Heat-Line can be found providing freeze protection in many of the following places:

  • Homes, cottages
  • Resorts
  • Farm/Agriculture


  • 5 year limited warranty, 10 year extended warranty available
  • Cord set (hardwire) connected models available upon request
  • No other product combines these features or offers the reliability and flexibility
  • Simply plugs into a 120V or 240V receptacle (GFC models only). No extra electrical work is required
  • Available in 5 ft. (1.5 m) increments up to 100 ft. (30m) and increments of 10ft. (3m) to a maximum length of 300 ft. (91m)
  • Can be fully insulated to increase energy efficiency
  • Can be used with various optional control devices including timers and thermostats
  • Self-regulating/conductive polymer heating cable


  • Electrically Certified by cCSAus (Canada and USA)
  • Approved for potable water applications
  • Manufactured in North America
  • Ground fault protection is integral to the system (GFC models only)
  • Philmac fitting ensures pressure connections are simple, secure and leak proof
  • Suitable for above ground applications when properly insulated
  • No need to excavate below the frost line, thus saving costs on installation
  • Supplied job-ready based on specific freeze protection requirements
  • Completely serviceable
  • Heating cable is durable enough to stay in place within the entire length of pipe without the need of a downward hooking or latching device
  • Most reliable and energy-efficient system on the market
  • Proven performance in cold climates (even in above ground applications)
  • Will never melt or burnout the pipe, even if the pipe is dry


  • CSAus Certified (Canada and USA) LR85446
  • NSF/ANSI 61 certified drinking water 
  • Designations P and X Canada
  • Installation Type D USA

Electrical Specifications

  • Self-regulating/conductive polymer heating cable
  • Fluoropolymer Outer Heating Cable Jacket
  • 120 Volt systems – 3 watt /ft. (9W/m) at 50°F (10°C), maximum length 220 ft. (67m)
  • 240 Volt systems – 3 watt /ft. (9W/m) at 50°F (10°C), maximum length 300 ft. (91 m)
  • 120 Volt GFC models – 4 ft. (1.2 m) power supply lead with 27 milliamp ground fault circuit interrupter plug-in device
  • 240 Volt GFC models – 6 ft. (1.8 m) power supply lead with 27 milliamp ground fault circuit interrupter plug-in device
  • CS models – 6 ft. (1.8 m), 12- 14 AWG SJEOOW supply cord for direct hard wire connection, GFCI must be field installed

Plumbing Specifications

  • Freeze Protected Water Supply
  • 75 PSI, CSA approved polyethylene pipe
  • Available in 1 inch and 1 ¼ inch internal diameter pipe
  • Nominal heating cable thickness 0.25 in (6.4mm) / width 0.425 in (10.8mm)
  • Suitable for pressure systems 75 PSI or less. For higher pressure systems see CARAPACE, or contact Heat-Line directly for further advice
  • Supplied complete with Philmac compression style tee fitting

Measuring Recommendations for Heat-Line

Always measure prior to ordering. Do not assume or estimate the length required as a Heat-Line system cannot be extended.

  • The Heat-Line system is an advanced water supply pipe and self-regulating heating cable system factory finished and supplied job-ready to a pre-determined length provided at the time of order.
  • Heat-Line systems are priced and manufactured in standard lengths of 5 ft. (1.5m) increments up to 100 ft. (30m), then in 10 ft. (3m) increments from 100 ft. to 300 ft. (30m x 91m).

Important Notes:

  • A Heat-Line system can never be lengthened. If a longer system is needed an entire new system would be required.
  • The heating cable portion of the Heat-Line system can never be cut shorter at the job-site. If a shorter system is needed the heating cable can be shipped back to Heat-Line to be shortened or it can be shortened at the job-site by following careful extraction instructions. Always contact Heat-Line for guidance prior to proceeding.
  • Heat-Line systems are supplied with 2 feet of extra pipe than the heating cable length. If the pipe needs to be cut back the heating cable should be pulled back prior to proceeding to eliminate any chance of cutting the heating cable. If the heating cable is cut it can never be lengthened and can only be repaired at Heat-Line’s facility.
  • While most Heat-Line systems are manufactured in standard lengths, special lengths of any measurement can also be requested within the maximum lengths allowed for 120 and 240 volt systems. For example, if a 118ft. (36m) system was required, instead of purchasing a 120ft (36.5m) system, a special order could be placed for an exact length of 118ft (36m).

Lake/River Applications

  • In lake and or river installations, the Heat-Line system should start in the heated building or room and end (terminate) in the lake at a minimum total water depth that is greater than the expected depth of surface ice. In some applications, the Heat-Line system may extend right to the foot valve or submersible pump in the lake. If the heating cable is long enough to reach below the ice surface but the submersible pump or foot valve is to be in deeper water, non-heated pipe can be coupled on to the end of the Heat-Line system.

Well Applications

  • In a drilled or dug well application the Heat-Line system should start in the heated building or room and end (terminate) at the well casing.
  • In certain dug well applications, depending on the casing diameter and depth, you may be able to run the length of Heat-Line directly into the well casing prior to interfacing to the non-heated water pipe to extend to the foot valve and or pump.

As in all cases, if you are unfamiliar or uncomfortable with the measuring and/or installation of a Heat-Line product please consult directly with a Heat-Line application specialist or contact a qualified local tradesperson.

Heat-Line is considered a custom order as it is not kept in stock. Heat-Line can generally be shipped out within 1-3 days from the time of order. Please contact Heat-Line for current availability and lead times.

Included in a Heat-Line System:

  • Factory finished, self-regulating internal heating cable of pre-determined length complete with Philmac Compression Tee
  • Heating cable factory installed inside a CSA, 75 PSI polyethylene water pipe measuring 2 ft (0.6 m) longer than the heating cable ordered
  • 120V GFC models: 4 ft. (1.2 m) power supply lead with 27 milliamp ground fault circuit interrupter plug-in device
  • 240V GFC models: 6 ft. (1.8 m) power supply lead with 27 milliamp ground fault circuit interrupter plug-in device
  • CS models: 6 ft. (1.8 m), 12- 14 AWG SJEOOW supply cord for direct hardwire connection, GFCI must be field installed
  • 5 year limited warranty
  • Clear, concise installation and support documentation

Heat-Line Accessories 

HLA-120120V plug-in thermostat (GFC)
120/240V hardwire thermostat with GFCI (CS)
TIMER-120P120V plug-in timer (GFC)
TIMER-240P240V plug-in timer (GFC)
120/240V hardwire timer (CS)
MA-10120/240V GFCI/ELCI (CS)
INSUL-1.00Insulation sleeve for 1 inch ID pipe (1 5/8 inch ID, 6 ft long)
INSUL-1.25Insulation sleeve for 1 1/4 inch ID pipe (1 7/8 inch ID, 6 ft long)
HLP-TAPETape for insulation sleeves (100 ft)
WARRANTYExtended 10 year limited warranty


Heat-Line Product Code Guide

Heat-Line Product Code Guide

Q – What is the difference between Heat-Line and Retro-Line?
A – Retro-Line is a cCSAus and NSF/ ANSI 61 approved system for internally heat tracing potable water supply pipes and sump pump lines. Heat-Line is an advanced freeze protected pipe system supplied with the self-regulating heat trace factory installed inside of 75 PSI CSA approved polyethylene pipe. Heat-Line is ideal for new installations or for older water systems where new pipe is required.

Q – Will the heating cable restrict the water flow in the pipe?
A – The Heat-Line system is designed for minimal if any impact on water flow through a pipe. In common water supply pipe applications, the Heat-Line system has been shown not to provide any measurable effect.

Q – What length of Heat-Line will I need?
A – The length of Heat-Line that will be required can change from application to application. For help in determining the total length required, please see the MEASURING TIPS tab or contact Heat-Line to speak with a product specialist.

Q – Can Heat-Line be cut if too long?
A – No. The Heat-Line system is a pre-assembled factory terminated advanced self-regulating heating cable system that is not designed to be field terminated and or tailored to length. Contact Heat-Line to speak with a product specialist for details on a procedure to reduce the length of heating cable within the pipe. DO NOT CUT HEATING CABLE

Q – My Heat-Line system is too short; can I add a small section onto the end? If not, what can be done?
A – No. The Heat-Line system is a pre-assembled advance self-regulating heating cable system that includes a proprietary end-seal termination. As such the Heat-Line system cannot be spliced together or altered in the field. If greater length of the Heat-Line is required see CARAPACE.

Q – Is there a maximum length of Heat-Line heating cable systems?
A – Yes. The maximum circuit length of Heat-Line that is allowed on a 120V circuit is 220 ft. (67m), and 300 ft. (91m) on a 240V circuit.

Q – Where do I purchase the Heat-Line system?
A – The Heat-Line heating cable system is available directly through Heat-Line and or any of our Heat-Line product distributors. For a list of Heat-Line product distributors in Canada and the United States please contact Heat-Line directly on our toll-free number at 800-584-4944.

Q – Does a 240-volt system use less power than a 120-volt system?
A – A common misconception is that a 240V electrical appliance consumes less energy than a 120V electrical appliance. Power consumption is measured in watts, not voltage. Whether you are consuming 500W at 120V or 500W at 240V you are still consuming 500W of energy.

Q – Can I (the homeowner) install Heat-Line?
A – Heat-Line provides proper and easy to follow installation instructions with all of our products, and offers market-leading technical support. As a result, most Heat-Line systems, including Heat-Line can be installed by homeowners; however, Heat-Line commonly recommends that a qualified tradesperson complete the installation process

Q – How much power does a Heat-Line consume?
A – All Heat-Line brand systems including Heat-Line employ Heat-Line’s advanced self-regulating heating cable technology which operates to deliver energy and heat output to areas of the pipe that are cold and reduces energy and heat output to areas which are warm. While the overall amount of energy consumed depends on multiple factors you can be assured that you are installing the most energy-efficient heating cable system available. If you would like to reduce your energy consumption further you can investigate the addition of a thermostat, timer, and or other control device.

Q – Is Heat-Line safe for use with a drain back system?
A – The Heat-Line system is safe for use with all water systems less than 75 PSI including drain back. The advanced self-regulating technology employed in the Heat-Line product renders it safe for use with plastic pipes even when dry as it can never overheat and damage the pipe.

Q – Does the Heat-Line come with a thermostat?
A – A thermostat is not included with the Heat-Line product as they are not required for proper and safe operation; however, a thermostat can be purchased as an additional accessory. Depending on system applications, or where automatic operation is preferred, a thermostat can be used to switch the system on and off to help conserve power or to duty cycle the system. When combined with insulation thermostats can substantially increase energy efficiency.

Q – Do I have to use insulation with the Heat-Line system?
A – Insulation is highly recommended when using the Heat-Line system, especially if the installation is above ground in ambient outdoor air. Insulation helps reduce the overall heat loss and therefore reduce the amount of energy the Retro-Line heating cable must consume. Since the pipe is not already buried, Heat-Line recommends insulation be used in all applications.

Q – What type of insulation should I use with the Heat-Line system?
A – Heat-Line recommends to use insulation that is best suited to the environment in which it is going to be installed. A common type of insulation employed with Heat-Line heating cables is closed cell polyethylene insulation sleeves.

Q – Does the unit shut off when not required?
A – No. Heat-Line self-regulating heating cable systems increase heat output with cold but more importantly, decrease heat output with warmth. As a result, Heat-Line brand products are very energy efficient to operate, but do not completely shut off as they can only idle their output to a minimum amount. To completely shut off the system it must be unplugged or installed with a thermostat. Heat-Line brand systems should be unplugged or shut off when not required (summer months) and tested each year before use.

Q – If the power fails, do I have to reset the unit?
A – Heat-Line products are designed to turn back on as soon as the power to the unit is supplied. Once re-energized the Heat-Line system has the ability to increase its output to immediately begin to defrost any section of the pipe that has or was close to freezing during the power outage. In many instances defrosting the pipe can take as little as an hour or less.

Q – What is the indication light on the GFCI on Heat-Line models for?
A – The indication light located on the GFCI device included with all GFC model Heat-Line systems verifies that power is provided to the GFCI device and that the GFCI is allowing power to pass through to the heating cable device.

  • Heat-Line Install Manual
  • Heat-Line Catalogue


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