20 Sq Ft Radiant Floor Heating Kit with Honeywell Thermostat (built-in GFCI) and Floor Sensor Complete 120 V heating system for your floor or countertop. Full 12 watts per square foot. Armored power lead. Double layer Tefzel (Teflon) insulation. 10 year warranty. Made in USA. Programmable thermostat with 10 floor sensor and 120 V integrated GFCI. 3 year Honeywell warranty. Professionals or DIY. Use our online tool to receive complete installation diagram. Certified to UL and CSA safety standards. Zero EMF emissions. Best price, value, and safety.