200sqft, 240V HeatTech Electric Radiant In-Floor Heating Cable System, 800ft long Floor Heating Cable covers 135-265 sqft + AUBE digital floor sensing thermostat TH115-AF-240S with floor sensor + FREE cable guides Radiant Floor Heating Cable Length (spool of wire): 800ft long + cold lead (10ft) Area Coverage: 135 sqft @ 2" spacing; 200 sqft @ 3" spacing (recommended), 265 sqft @ 4" spacing. Allows easy heating of odd shapes Voltage: 240V; Output: 2400W (3W/ft.); Amperage: 10 Amps. Zero EMF. Highest quality heating cable. Heating cable is only ~1/8" thick. UL listed for USA and CANADA. 25-year Manufacturers Warranty