Nuheat's?standard mats (squares and rectangles) are ideal for most room layouts. Nuheat Mats are 1/8? thick, easy to install, energy efficient, and can be controlled using a variety of programmable and non-programmablethermostat options. Our electric floor heating system can use one or a combination of in floor heating mats to deliver under floor heat for the entire room. Nuheat in floor heating mats come in over 60 different standard sizesand are available in both 120 & 240 volt formats.