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.

Choose the MI fixed-length Cozy Heat cable for large commercial and industrial floor heating projects, slab heating applications, and any installation where maximum watt output and long-term durability are the priority. The MI variant produces 11.5–20 watts per lineal foot — the higher end of the range needed for total space heating and demanding heat loss prevention applications. Because it is a fixed-length product, the cable length must be specified and ordered based on the system design before installation begins.

Yes. Cozy Heat is ETL listed — the same listing that covers Heatizon’s Hott-Wire cable, reflecting their identical cable construction. ETL listing is issued by Intertek, an OSHA-recognized Nationally Recognized Testing Laboratory carrying equal legal standing to UL and CSA listings in the United States.

Cozy Heat serves two distinct applications, each with a different installation method. The first is floor and space heating — where the cable is embedded in a cementitious material such as mortar, concrete, or lightweight concrete beneath the floor covering, warming the floor surface and the room above. The second is slab heating and heat loss prevention — where the cable is adhered to the underside of an existing concrete slab using aluminum tape and fasteners, preventing heat loss through the slab and maintaining the temperature of the space above. The installation method, cable spacing, and watt output target differ significantly between the two applications.

Cozy Heat and Hott-Wire share the same fundamental cable construction — both are mineral-insulated line-voltage cables with fiberglass insulation, a copper outer tube, HDPE jacket, and factory pre-connected cold leads on the MI variant. The difference is application: Hott-Wire is designed and rated for outdoor snow melting in concrete, asphalt, and pavers. Cozy Heat is designed for interior floor warming, space heating, and slab heating applications. Both are ETL listed and available in MI fixed-length and self-regulating cut-to-length variants.

Cozy Heat is Heatizon’s line-voltage electric radiant heating cable for interior floor warming, space heating, and slab heating — available in two configurations. The MI (mineral-insulated) fixed-length variant uses a central copper conductor surrounded by fiberglass insulation compressed inside a copper outer tube with an HDPE jacket, factory-terminated with pre-connected cold leads at both ends. The self-regulating cut-to-length variant automatically adjusts its heat output based on ambient temperature and is cut to length on site. Both variants are ETL listed and operate at line voltage — no step-down transformer required.