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DITRA-HEAT twisted pair heating cable is designed to snap into DITRA-HEAT uncoupling membrane.

Manufactured by Schluter-Systems, EMF-cancelling DITRA-HEAT radiant heating cable installs directly into DITRA-HEAT or DITRA-HEAT-DUO cable installation membrane (sold separately) for use under tile or stone flooring.
Additional benefits include:

 3-stud spacing is standard spacing (generates 12.7 Watts per square foot)

     NEW alternate spacing is now an option for more heat output

 Low profile of 4.8mm for cable and 5.5mm with membrane

 Compatible for shower floor and benchtop installation

 Significantly reduced installation time. No self-leveler required!

 120V and 240V options available in a variety of lengths

 15-Year Manufacturer Warranty with opportunity to extend

  IMPORTANT Information

  • Do not purchase a heating cable the same size as the area to be tiled; this will be too much heating cable!
  • Be sure to only measure the open floor area and not under objects such as cabinets and tubs.
  • Never CUT the heating cable. This would change the cable resistance and could lead to a fire.


Cable spacing of 3 studs is standard, but closer spacing of 3-2-3-2 provides more heat or allows you to “use up” extra cable if you have too much. 4 stud spacing is NOT recommended.

Instruction Manual Link

DITRA-HEAT Installation Handbook

Install Steps

Shower Installation

Indoor / Outdoor

Power Supply & Wiring

Maximum Circuit Load

Maximum Circuit Overload Protection

Wire Construction

Distance from Toilet

Trowel Size recommended

Minimum Installation Temperature

UPC 4011832146169
Manufacturer Schluter-Systems
Safety Listing Listed under CAN/CSA-C22.2 No. 130-03.
Voltage 120 VAC
Cable Length 35.3'
Heated Area Size Covered 11
Wattage per SF 12.7 at 3-stud spacing
Total Watts 135
Amp Draw 1.1
Heating Power Output per Hour (BTU) 460.64
Spacing of Heating Wire Varies
Power Lead Length 7'
Power Lead Wire Gauge 18 AWG
Power Lead Type Armored, NEC color code, Single point connection at 1 corner of mat. No return wire like inferior products
What's In The Box (1) 10.7 sq ft 120V cable, (1) sensor wire
Warranty from Manufacturer 15-Year Limited Warranty
Acceptable Floor Coverings Tile, Natural Stone
Spacing between runs 1 3 stud spacing
Spacing between runs 2 3-2-3-2 stud spacing
Heated SF 1 10.7
Heated SF 2 8.9
Watts Per SF 1 12.7
Watts Per SF 2 15.2
BTUs/SF/Hr 1 43.2
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