Due to heating area is over 100sqft, a combination of (2) heating cables are suggested. 320ft long cable covers right and middle parts of the bathroom, 200ft long cable covers the rest of heating area. Two heating cables must be wired together in parallel at thermostat box.
Our suggested combination is: HTCBLKIT-120-320-GFCI and HTCBL-120-200. It includes 320ft long and 200ft long heating cables, 7-day programmable thermostat and floor sensor.