FAQ
FAQ
What is the minimum stud spacing when installing the Schluter®-DITRA-HEAT-E-HK heating cables?
A cable spacing of 3 studs between runs is standard. However, cable may also be spaced at continuously alternating 3 stud – 2 stud intervals in isolated...
Can Schluter®-DITRA-HEAT-E-HK heating cables be installed on a shower bench?
Yes, DITRA-HEAT-E-HK heating cables can be installed on the top surface of shower benches. Care must be taken to install...
Can mosaic tile be used with Schluter®-DITRA-HEAT?
The minimum required tile format for use with DITRA-HEAT is 2" x 2" (50 mm x 50 mm). Please call Schluter®-Systems...
Can Schluter®-DITRA-HEAT be installed over vinyl flooring?
Yes, DITRA-HEAT can be installed over vinyl. Some limitations include the following: 1- Cushioned vinyl is unacceptable...
Can Schluter®-DITRA-HEAT be installed over hardwood flooring?
We don't recommend or warranty DITRA-HEAT installation over existing hardwood flooring as it is very unstable and difficult to bond...
Can other manufacturer’s heating cables be installed with Schluter®-DITRA-HEAT membrane?
The DITRA-HEAT-E-HK heating cables are specifically designed to integrate with the DITRA-HEAT membrane...
Can the Schluter®-DITRA-HEAT system be installed in an outdoor installation?
No, the DITRA-HEAT heating cables and membrane cannot be installed outdoors. The heating cables are not rated for exterior applications.
How long do I have to wait after the installing Schluter®-DITRA-HEAT to start using the system?
Schluter®-Systems recommends waiting 7 days after grouting before consistent use of the DITRA-HEAT system...
Can Schluter®-DITRA-HEAT be installed over existing tile?
Installing DITRA-HEAT over existing tile may require special considerations. Please call Schluter®-Systems...
I plan to install an electric floor warming system on slab on grade. Are there any available Schluter products that can act as a thermal break?
Why is megohmmeter testing strongly recommended for Schluter®-DITRA-HEAT-E-HK heating cables?
The insulation resistance test is intended to detect very small breaks throughout the cable insulation before, during, and after installation...
Where can I find a megohmmeter to perform the insulation resistance test?
Megohmmeters may be found at local electrical supply wholesalers or online retailers such as Grainger, Mouser Electronics, Amazon, etc...
My megohmmeter is reading OL or I; is this a good reading for the heating cable insulation resistance test?
If your megohmmeter is reading "OL" (over load) or "I" (infinity), these are commonly used readings on megohmmeters...
How do I connect the Schluter®-DITRA-HEAT-E-HK Heating Cables to a Schluter®-DITRA-HEAT-E-RSD thermostat?
For instructions on connecting the DITRA-HEAT-E-RSD thermostat, please reference the Schluter®-DITRA-HEAT Thermostat User’s Guides or...
How do I program the Schluter®-DITRA-HEAT-E-RSD thermostat?
Please see the DITRA-HEAT DHE RS D/BW Thermostat user’s guide for written instructions or see the Tips, Tricks, & FAQ video...
I ran out of room for my heating cables, can I cut them or put them under my cabinets?
NEVER cut or modify the heating cable in any way. This would change the cable resistance, will cause damage to the cable, and could cause cable overheating...
How do I select the correct length Schluter®-DITRA-HEAT-E-HK heating cable for my floor warming project?
The Schluter®-DITRA-HEAT membrane is selected according to the size of the area to be tiled. The DITRA-HEAT-E-HK heating cable is selected...
Why are two floor temperature sensors provided with the Schluter®-DITRA-HEAT system?
Both floor temperature sensors are installed within the tile assembly. One sensor is connected to the thermostat, while...
Can Schluter®-DITRA-HEAT-E-HK heating cables be installed on walls?
What are the restrictions on where I can install the Schluter®-DITRA-HEAT heating cables?
The DITRA-HEAT heating cables cannot be installed under vanities with no air space beneath, bathtub platforms...
Can more than one DITRA-HEAT-E-HK heating cable be connected to the Schluter®-DITRA-HEAT-E Thermostats ?
Multiple DITRA-HEAT-E-HK heating cables can be connected and controlled by a single DITRA-HEAT-E thermostat, if the total current is less than 15 amps...
What size electrical box is recommended for a Schluter-DITRA-HEAT-E thermostat?
We recommend a single gang, deep electrical box or a double gang electrical box with a single gang mud ring to provide plenty...
How do I choose between the 120V and a 240V Schluter®-DITRA-HEAT-E-HK heating cables?
There is no single determining factor. In general, 120V heating cables must be connected to 120V power sources...
Is it required to waterproof Schluter®-DITRA-HEAT?
Waterproofing the floor is not required, but can be beneficial in some cases. Today’s construction methods...
Can I use self-leveling compounds over Schluter®-DITRA-HEAT?
No, any leveling of the subfloor must be done prior to installing the DITRA-HEAT membrane. A major benefit of DITRA-HEAT is that self-leveling...
How long do I have to wait before installing tile on Schluter®-DITRA-HEAT?
Once the DITRA-HEAT membrane has been installed and the heating cables have been embedded within the membrane and tested, the tile can be installed right away...
How much thin-set mortar will be used with Schluter®-DITRA-HEAT?
The estimated thin-set mortar coverage is shown below. Coverage may vary with mortar consistency, angle at which the trowel is held...
What is the proper thin-set mortar consistency for installing Schluter-DITRA-HEAT?
Using a thin-set mortar that is suitable for the substrate, apply the thin-set mortar (mixed to a fairly fluid consistency, but still able to hold a notch)...
What type of thin-set mortar should I use when setting tile over Schluter®-DITRA-HEAT?
Schluter-Systems requires the use of Schluter SET™ , ALL-SET™ , FAST-SET™, or an unmodified thin-set mortar meeting the requirements of ANSI A118.1 to install...
How do I receive a lifetime warranty?
Can I install alternate floor coverings over Schluter®-DITRA-HEAT or Schluter®-DITRA-HEAT-DUO instead of tile or stone?
The Schluter®-DITRA-HEAT system is suitable for applications with engineered wood, vinyl, wood plastic composite (WPC), luxury vinyl tiles (LVT), luxury vinyl planks (LVP) and more.