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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 Kit contains everything you need to install a complete floor heating system under tile or stone:

  1 Spool of DITRA-HEAT Cable (DHEHK12021) - Warms 21 sq ft
  1 DHERT102/BW Programmable Thermostat (touchscreen)
  2 Sensor Wires - one in each the thermostat & heating cable box
  4 DITRA-HEAT-TB Uncoupling Membrane Sheets - Covers 34.4 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

Instruction Manual Link

DITRA-HEAT Installation Handbook


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).

Indoor / Outdoor


Maximum Circuit Load

15 amps


Manufacturer Schluter-Systems
Safety Listing UL Listed
Voltage 120V
Cable Length 70.5 feet
Cable Length (inches) 846 inches
Cable Length (meters) 21.5 meters
Heated Area in Sq Ft typical 21 Square Feet
Wattage per SF 12.75
Total Watts 270 Watts
Amp Draw 2.3
Heating Power Output per Hour (BTU) 921.28
Spacing of Heating Wire 3-stud and 3-2-3-2-stud spacing. (Tension loop can be made around a single stud if necessary. See installation handbook for details.)
Thickness ~ 0.25 inches

More Details

What's In The Box 4 Sheets DITRA-HEAT-TB Membrane, 1 DHEHK12021 Cable, 2 sensors, 1 Touchscreen Thermostat (DHERT102/BW)
Warranty from Manufacturer 10-25 year limited manufacturer warranty
Spacing between runs 1 3 stud spacing
Spacing between runs 2 3-2-3-2 stud spacing
Heated SF 1 21.3
Heated SF 2 17.8
Watts Per SF 1 12.7
Watts Per SF 2 15.2
BTUs/SF/Hr 1 43.2


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