The SunTouch® WarmWire Electric Floor Heating Cable is a radiant heating cable system designed for custom underfloor heating installations. Unlike pre-spaced heating mats, WarmWire allows adjustable cable spacing to fit around fixtures, curves, and irregular room layouts.
The cable installs over plywood, backer board, or concrete slab substrates and is embedded within self-leveling mortar or polymer-modified thin-set mortar. Available in 120V and 240V configurations, WarmWire is compatible with tile, stone, hardwood, and carpet flooring and is designed for use with SunStat® floor sensing thermostats.
Specifications
| Specification | Details |
|---|---|
| Supply Voltage | 120VAC & 240VAC, 1-Phase |
| Amp Draw | 120VAC: 1 Amp per 10 sq ft 240VAC: 1 Amp per 20 sq ft |
| Maximum Circuit Load | 20 Amps (15 Amps with SunStat Control) |
| Wire Spacing | 2.5", 3", or 3.5" O.C. |
| Watt Density | 10.3 – 14.4 W/Sq Ft |
| Maximum Temperature | 194°F (90°C) |
| EMF Rating | Less Than 1 Milligauss at 1/2" |
| Minimum Mortar Thickness | 3/8" Polymer-Modified Thin-Set |
| Compatible Floor Coverings | Tile, Stone, Hardwood, Carpet |
| Allowable Substrates | Plywood, Backer Board, Concrete Slab |
