What you can do is run that mat everywhere but only heat the parts that you want.
Ditra heat mat.
Schluter ditra duo signature floor heating kit 64 square feet includes wifi touchscreen programmable thermostat duo membrane heat cable dhehk12064 safe installation kit heat enhancing additive 713 80 713.
Self leveling compounds are not required to encapsulate the cables significantly reducing installation time and effort.
Simplify installation of both your heating system and tile floor.
Ditra heat provides uncoupling to neutralize shear stresses between the substrate and the tile covering to prevent cracked tile and grout.
The dh5ma is an uncoupling and waterproofing membrane designed to secure ditra heat heating cable in place.
Alternatively you could use ditra heat mat only where you want to heat but i would recommend another similar height tile underlayment to use with it.
It is a universal substrate for tile coverings which serves as an uncoupling crack bridging waterproofing vapour pressure equalization layer and is designed for the attachment of heating cables.
Whether you use ditra xl 1 4 inch hardibacker or whatever is up to you.
Ditra heat mat is about 1 4 inch thick.
Schlüter ditra heat has been developed offering unique electrical underfloor heating within the uncoupling matting layer system that eradicates sticky situations measuring mistakes and self levelling and primer layers.
Schluter ditra heat matting is polyethylene membrane with a cut back stud structure and an anchoring fleece laminated on the underside.
Schluter ditra membranes provide uncoupling through free space which allows for in plane movement that effectively neutralizes the differential movement stresses between the substrate and the tile thus eliminating the major cause of cracking and delaminating of the tiled surface.
Cables can be placed wherever heat is desired for customized heating zones and no leveling compounds are required which makes for a quick and easy installation.
Cables can be placed wherever heat is desired without creating height differences in the floor.
It is a universal substrate for tile coverings which serves as an uncoupling crack bridging waterproofing vapour pressure equalization layer and is designed to be used as a carrying membrane for the schluter ditra heat e hk heating cable.
Ditra heat combines the flexibility of loose heating cables with the ease of installation of mat systems.
Schluter s ditra heat combines radiant floor heat in an uncoupling membrane.