Schluter Ditra-Heat Electric Floor Heating Membrane with Uncoupling, Waterproofing, Vapor Management and Load Support - Ideal for Tiles and Stone - 1/4" Thickness, 134.5 Square Feet Roll - DH512M

Worth , the money

What attracted me to the DITRA-HEAT system was that it gives a lower total Z-height when compared to traditional backer-board-plus-heating-mat solutions. This was important because I needed to match up with existing hardwood floors. As you can see from the photo, it worked absolutely perfectly to within a millimeter. I am an amateur at this, but there's plenty of great "how-to" resources both on Schluter's website and on Youtube. Routing the heating cable was a little tricky, having to pay attention to all the rules (3-stud spacing minimum, 7" from any floor registers, etc etc) but nothing too bad. Protip: when you lay the matting, you do need a roller of some sort to flatten and bed it into the thinset mortar. Schluter offer one, but for about 1/4 the price I picked up a hardwood roller from the local big box DIY store, intended for installation of vinyl flooring. Works perfectly. Also, be sure to have plenty of heavy objects to hand ready to press the membrane down while the thinset hardens! I used the boxes of tiles I subsequently installed. I now have a hallway and bathroom floor that are pleasantly warm underfoot. 10/10, will buy this again when I remodel the other bathroom!

Using a decoupling membrane is a great way to add stability to the floor you install. In this case, it is a mosaic marble tile. This type of tile is going to crack if you don’t have a stable base. In this case, this is meant to carry the wire for the heating element. Installs the same as the regular Ditra, but has the channels for wiring. Top tip: this ships in a roll and likes to keep that shape. Lay it flat and install will get a lot easier.

Wonderful decoupling membrane that channels the electric floor heating cable. Keeps everything straight and in place.

Was able to get the best price from Amazon. Easy to install, and of course worked perfectly with Schluter Ditra heating cable. Allows you to water proof your subfloor, and making it really easy to layout the heating cable. Hardest part is determining which layout or path to lay the cable to use it all up and still heat all the area you want heated.

This is an expensive floor heat system but the best product available that I have found. I am a contractor and I have installed many different floor heat systems.

This has some minor flaws and takes some practice getting used to. The membrane is much thicker than Ditra's 1/8 membrane for non-heated areas. Thus, the concept of mixing this with there other product should be nixed in your thinking. For a large area, say a kitchen/open space, where you don't need heat for some of the floor (say where counters go, or where you know furniture will be semi-permanently) you should still use this more expensive membrane and not mix with the "standard" 1/8. because it is thicker, it wants to pop off the floor as it retains its roll. You need to weigh down the ends to make it stick. If your mortar underneath is uneven, it is very hard to smooth this out on a large floor. You really do want a way to squeeze this out. The seams combined with the kerdi strip will be significantly thicker. This is a bit of a pain if you are using thin set mortar that is "loose" as it is hard to keep the tiles even across the strip. The membrane, in my experience, seems to accentuate any floor uneveness, not smooth it out as you would expect. If I had it to do over again, I would have put a 1/4" hardboard on top of the subfloor. It works well with NuHeat cabling, which I think is superior to the Ditra heat cabling. Note that the NuHeat cabling calls for a 3" and 2" staggered or all 3" staggered layout of the cables. The Ditra membrane has spacing that is a bit different than that, so you want to use the 3 and 2 staggered just to get to the same 3 inch all layout that is recommended. This is not a criticism of the product, just an installation note if you use NuHeat. The installation instructions are "OK" but not great. They seem to combine the instructions between their standard product and the Heat product. Overall, this is a good product, but it was not the no brainer I wanted it to be <grin>. Be careful on large areas and remodel floors versus new floors.

This stuff is fantastic! Easy to install, accepts nuheat cable for $$ savings, and is easy to install over. Unlike the mesh mat system, this wire fits down inside the grooves and is then encased fully in UNMODIFIED thinset to provide a really flat substrate for tile install. No mesh/wire mats to float out while installing or backer board to cut. It's a great way to get a quality heated floor.

Vraiment génial. Cela facilite l’installation.

I had grout lines crack in bathroom in wooden house structure (even with using cement sheets). Bathroom floor was always cold too. So I learnt about this product and installed floor heating myself. Works well and I hope no more grout line cracks!!

Installation de planche chauffante. Dans la salle des bains.

Delivery was excellent and no damage. It was the best price I could find anywhere.

No issues. Great product.