When should I choose the self-regulating Cozy Heat cable?

Choose the self-regulating Cozy Heat cable for smaller or irregularly shaped floor areas, retrofit projects where the exact cable layout is finalized on site, and applications in milder climates or well-insulated buildings where the lower maximum output of a self-regulating cable is sufficient. The SR variant produces 5,9, or 12 watts per lineal foot and adjusts its output automatically based on surrounding temperature — it cannot overheat and is tolerant of irregular spacing during installation.