Cozy Heat carries a 10-year manufacturer’s warranty across both the MI fixed-length and self-regulating variants — backed by the same mineral-insulated fiberglass construction used in Hott-Wire, which provides exceptional resistance to moisture, mechanical damage, and temperature extremes over the life of the installation.

Yes. The MI Cozy Heat cable — at 11.5–20 watts per lineal foot — can provide sufficient heat output for total space heating in residential and commercial buildings, including cabins, homes, basements, sunrooms, commercial buildings, and industrial facilities. System design targets 5–15 watts per square foot of heated area depending on the building’s heat loss characteristics, insulation values, and climate. The Cozy Heat system is designed and specified by Heatizon’s team to meet each project’s heat loss requirements — not sized to a generic formula.

Cozy Heat systems can be controlled by a programmable thermostat for individual zone control — specifying the temperature and schedule for each heated area independently. For larger installations with multiple heating circuits, a relay or contactor panel allows a single thermostat or control device to activate multiple zones simultaneously. Zone-designed systems provide comfort and energy savings by heating specific areas only when needed.

Cozy Heat operates at line voltage — 120V, 208V, 240V, or 277V (480V/600V for MI) — supplied directly from the building’s electrical panel without a step-down transformer. This makes it well suited to commercial and industrial floor and slab heating projects where line-voltage supply is standard and transformer-based low-voltage systems are impractical for large areas.

Yes for floor and space heating — the cable must be embedded in a cementitious material such as mortar, standard concrete, or lightweight concrete. The cementitious heatsink is essential for even heat distribution across the floor surface above; without it, heat concentrates at the cable rather than spreading across the floor. For slab heating and heat loss prevention, the cable is adhered directly to the underside of the concrete slab — the slab itself acts as the thermal mass, and no separate heatsink embed is required.

Yes. The self-regulating variant can be used for slab heating applications — adhered to the underside of the concrete slab using aluminum tape and fasteners, as with the MI variant. The SR variant’s self-regulating characteristics mean it will reduce output as the slab reaches temperature, providing built-in energy efficiency without requiring a separate thermostat to manage overheating. For higher heat loss requirements where maximum output is needed consistently, the MI variant is the recommended choice.

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.

Cold leads are the non-heating sections of cable that connect the heating element to the electrical panel. Standard MI cables require cold leads to be spliced on-site — adding labor time and introducing a potential failure point at the splice. Cozy Heat’s MI cable ships with cold leads already connected at both ends from the factory. The installer routes the cold leads from the heating zone to the panel and terminates them — no specialized splicing tools or additional field connections required.

For slab heating and heat loss prevention, the MI Cozy Heat cable is adhered to the underside of a concrete slab using aluminum tape and fasteners — not embedded in the slab itself. This configuration allows the cable to heat the slab from below, preventing heat loss through the concrete and maintaining the temperature of the space above. This installation method is used when access to the underside of an existing slab is available and embedding in a new pour is not feasible or required.

For floor and space heating, the MI Cozy Heat cable is embedded in a cementitious material — mortar, standard concrete, or lightweight concrete — beneath the finished floor surface. The cable is laid at the spacing specified in the system design, and the cementitious layer is applied over the top before the floor covering is installed. The heatsink provided by the cementitious embed distributes heat evenly across the floor surface above.