SunTouch 120045WD-BKIT WarmWire 3.0 kit 45 Sq Ft 120V Electric Radiant Floor Heating Cable System WarmWire cable is thin, durable, and energy efficient. (Input: 120V, Output: 12W/SqFt, 41 BTUs) Heats 45 square feet (Contains a 176 ft spool with 10 ft armored power lead) Installs easily with complete design freedom for going around turns, fixtures, and obstructions. Kit includes cable, touchscreen programmable thermostat, floor sensor, and install accessories.