What is the minimum stud spacing when installing the Schluter®-DITRA-HEAT-E-HK heating cables?

A cable spacing of 3 studs between runs is standard. However, cable may also be spaced at continuously alternating 3 stud – 2 stud intervals in isolated areas or over the entire floor. This practice may be desirable to increase heat output (e.g., over uninsulated on or below grade concrete subfloors) or to consume more cable length in a given area (e.g., when using the standard 3 stud spacing doesn’t allow the selected cable to fit the floor area and respect minimum spacing requirements from walls, partitions, etc.) A cable spacing of 4 studs is not recommended, as it can produce inconsistent floor surface temperatures.