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WarmWire floor heat cable is an affordable alternative to radiant heated mats. Using electric heating wire, it provides underfloor heat that helps keep bathrooms, kitchens, and entryways cozy, dry, and safe.

  • New improved wire allows for increased jobsite toughness and durability
  • Wire is easily secured with CableStrap or HeatMatrix uncoupling membrane
  • Constant diameter wire makes installation with HeatMatrix quick and easy
  • Wire spacing can be adjusted to match rooms with different heating needs
  • 25-year warranty for WarmWire, whether used with CableStrap or other manufacturers’ heated floor membranes
  • Complete design freedom
  • Can be used to warm all kinds of floor coverings: ceramic & porcelain tile, stone, wood, laminates, vinyl, or carpet
  • Approved for shower installation where permitted by the local authority having jurisdiction (AHJ)
  • Constant diameter wire makes securement in uncoupling membranes quick and easy
  • Wire is easily secured at 2.5", 3" or 3.5" spacing with CableStrap
98 ft. cable heats 21 sq. ft. at 2.5" OC (14.4 W/sq. ft), 25 sq. ft. at 3" O.C. (12 W/sq. ft.), or 30 sq. ft. at 3.5" OC (10.3 W/sq. ft.)

WarmWire coverage depends on the selected wire spacing.
  • 2.5" spacing is recommended for high heat loss areas like sunrooms or basement rec rooms.
  • 3” spacing is recommended for kitchens, bathrooms, and living rooms over wood-framed subfloors.
  • 3.5" spacing may be used in lower heat loss areas such as hallways.
  • Voltage: 120 V
  • Amps: 2.5
To install, lay out and attach the CableStraps. Fasten the WarmWire to the CableStraps as you weave it back and forth across the floor. Put down a layer of thin-set mortar and set your tile or stone. Install a layer of self-leveling cement over the cables for hardwood, laminate, vinyl, or carpeted floors.
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Coverage (Sq Ft.):
Radiant Heat
WarmWire Heat Cable
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