Pro Warm Electric under carpet / under vinyl heating mats provide a reliable & effective underfloor heating system that when used in conjunction with XPS Standard insulation boards & Heat Pak Dual Overlay work extremely well with carpet & vinyl finishes. Each Pro Warm under carpet / under vinyl heating system & thermostat comes with a Lifetime Warranty, subject to terms & conditions. Pro Warm under carpet heating systems are constructed using multi strand wires which are only 2mm thick & contained within a foil matting. Making them not only one of the thinnest on the market, but also extremely durable. Please choose an electric underfloor heating mat that will cover 90% of your floor area. It is best to order slightly less than you need than have too much as the cables CAN NOT be cut or shortened.