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.
Using nuheat cable with ditra heat mat.
Uncoupling waterproofing vapor management and support to ensure a long lasting installation.
How to install nuheat heat matt with schluter ditra on a plywood subfloor.
What you can do is run that mat everywhere but only heat the parts that you want.
Whether you use ditra xl 1 4 inch hardibacker or whatever is up to you.
Schluter ditra heat integrates customizable comfortable electric floor warming with the functions associated with ditra.
I liked the nuheat system better than the ditra heat cables so i bought the.
Like you i wanted to use a decoupling membrane plus i like the waterproofing of ditra in the bathroom.
Uncoupling waterproofing vapor management and support to ensure a long lasting installation.
Schluter ditra heat integrates customizable comfortable electric floor warming with the functions associated with ditra.
The stud structure of ditra heat is specifically designed to allow for the easy installation of ditra heat e hk heating cables.
The nuheat heat mat should be installed on the plywood with a good quality polyme.
Ditra does not recommend using anything but their own heating cables but nuheat advertises that their cable system works just fine with the ditra heat membrane.
Ditra heat mat is about 1 4 inch thick.