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Schluter DITRA-HEAT-DUO Kit with 51 sq ft Cable, 77 sq ft INSULATED Membrane, Touchscreen Programmable Thermostat (120V)


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DITRA-HEAT-DUO (formerly TB) features an integrated thermal break to reduce impact sound transmission through floor-ceiling assemblies, reduce heat loss to the substrate, and improve floor warming response time (especially over concrete).

Cables easily snap into place wherever heat is desired, which significantly reduces installation time and effort.
Since this eliminates any height differences, simply place self-leveler over the top for a perfectly level flooring installation.

This DITRA-HEAT-TB Kit contains everything you need to install a complete floor heating system under tile or stone:

  1 Spool of DITRA-HEAT Cable (DHEHK12051) - Warms 51 sq ft
  1 DHERT102/BW Programmable Thermostat (touchscreen)
  2 Sensor Wires - one in each the thermostat & heating cable box
  9 DITRA-HEAT-TB Uncoupling Membrane Sheets - Covers 77.4 sq ft

This Revolutionary membrane by Schluter-Systems integrates electric floor warming with the functions associated with DITRA:
uncoupling, waterproofing, vapor management and support which eliminated common causes of cracking ensuring a long lasting installation under tile or stone.

Note:  Product shown is a kit put together by Authorized Distributor Warm Your Floor containing individual genuine Schluter® products.

Instructions + Video

Instructions + Video

Instruction Manual
Install Steps

Ensure your sub floor is clean, even, and load bearing. Bond inhibiting surfaces must be removed prior to the application of DITRA-HEAT. For complete installation guidelines and warranty criteria, please refer to the included instruction manual or at the link displayed above.

Note: Type, thickness, & format of the tile/stone covering must be at least 2" x 2" (5 x 5 cm).

Skill Level Should be installed by qualified persons only. Electrician recommended for all wiring.
GFCI / GFEP Protection Required for each circuit. Built into all DITRA-HEAT thermostats.
Electrical Box Size Extra-deep single-gang box to fit power leads from 1 or 2 spools.

For 3 sets of power leads, use a 4" square deep box (you'll need the extra room for the wire, wire nuts, and thermostat control unit)
Layout Flexibilty Adjustable to any layout, membrane can be cut to fit around fixtures, vents, and other obstructions. NEVER cut DITRA-HEAT heating cable.
Indoor/Outdoor? For INDOOR USE ONLY
Acceptable Sub-Floors Installs overtop plywood or concrete. (Can act as a replacement for backer board).
Trowel type Recommended 11/64" x 11/64" DITRA Trowel (SKU# TRL-DIT6)


Voltage 120V
Cable Length 168.9 feet
Cable Length (inches) 2,026.8 inches
Cable Length (meters) 51.8 meters
Wattage per SF 12.75
Manufacturer Schluter-Systems
Thickness ~ 0.25 inches
Spacing of Heating Wire 3-stud spacing is recommended by the manufacturer (Tension loop can be made around a single stud if necessary. See installation handbook for details).
Thermostat Control Required? Yes (included)
Conduit Required? Yes
More Details

More Details

What's In The Box 9 Sheets DITRA-HEAT-TB Membrane, 1 DHEHK12043 Cable, 2 sensors, 1 Touchscreen Thermostat (DHERT102/BW)
Warranty 10-25 year limited manufacturer warranty
Heated Area Size Covered 51 Square Feet
Amp Draw 5.4
Total Watts 650 Watts
Safety Listing UL Listed
BTUs/SF/Hr 1 2,216 BTUs per Square Foot per Hour

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