luxheat 40sqft electric radiant floor heating system - 120v underfloor heating system - includes udg4 programmable thermostat w/gfci, heat cable, uncoupling membrane for under tile, sensor & alarm 120 volts 40 sqft is up for auction in Tools & Home Improvement. The current bid is $2.00, 100% below the $515.00 MSRP, in Good Condition. Bid on this item at our Rogers - N Dixieland Rd. location before the auction closes.