If you want heated tile without building up a thick floor or messing around with clips, this is the membrane the whole Schluter system revolves around. It warms the floor and protects the tile assembly at the same time.

Product overview

Schluter DITRA-HEAT is a studded uncoupling membrane that accepts DITRA-HEAT-E-HK heating cables and adds four critical functions under tile: uncoupling, waterproofing, vapor management, and load distribution. This roll covers up to 134.5 square feet and installs at a slim nominal thickness of about 1/4".

Pro tips

• Use rolls for the main field and fill in awkward cuts with sheets if your room has lots of jogs or fixtures.
• Don't buy based on room size alone. Measure the actual heated area after subtracting cabinets, tubs, and toilets.
• If you're working over plywood or OSB, ALL-SET or FAST-SET is the safer bond coat. Over concrete or gypsum, SET works well.
• If you need better sound control or a thermal break over a cold substrate, step up to DITRA-HEAT-DUO instead.

Installation notes

• Install fleece-side down in thin-set mortar and fully embed it with a float or roller.
• Sheets are installed edge to edge, not overlapped.
• Heating cables snap into the stud pattern — no fasteners through the floor.
• Tile can be installed immediately after cable placement.

What it pairs with

• DITRA-HEAT-E-HK 120V or 240V heating cables
• Schluter thermostats from the simple E-R up to the RS1 smart thermostat
• Schluter SET, ALL-SET, or FAST-SET mortars
• KERDI-BAND if you're waterproofing seams and transitions in wet-area applications

Who should buy it

This is the right call for homeowners and installers who want warm tile floors without giving up the crack-isolation benefits Schluter is known for. It's especially good for bathrooms, entries, laundry rooms, and kitchens where comfort and tile protection both matter.

Comparison to alternatives

Standard heating mats warm the floor, but they don't give you Schluter's uncoupling layer underneath. Standard DITRA protects tile, but it doesn't accept heating cables. DITRA-HEAT is the one product that does both jobs in a single layer.

Good to know: It's a Canadian-friendly system, easier to source than pieced-together heating setups, and earns 3% rewards on YourFloors.ca.