The 120V DITRA-HEAT cable is the right call for smaller heated floor areas where you already have a 120V circuit nearby. Same zero-EMF twisted-pair construction and snap-in installation as the 240V version, just sized for a lighter electrical load.

• Twin-conductor design snaps directly into DITRA-HEAT and DITRA-HEAT-DUO membranes — no clips, staples, or self-leveling compound needed
• Delivers ~11W per sq ft at standard spacing — practical for bathrooms, ensuites, and small mudrooms up to about 150 sq ft on a single 15A circuit
• Works with all DITRA-HEAT thermostats (E-R, E-RT, E-WiFi, E-RS1) — each thermostat includes a built-in GFCI as required by code

Pro tip: If your heated area exceeds 120 sq ft, price out a 240V circuit instead — the wire gauge is smaller, the cable costs are similar, and you'll have room to expand the system later.