Nuheat, which makes electric floor-heating systems, now can custom-cut its mats to fit any floor while heating through stone, tile, granite, marble, slate, engineered wood, and laminates. The 1/8-inch-thick mats can be controlled with one of three thermostat systems as an alternative to radiators or baseboard heat. They can be installed under shower beds and in saunas. Nuheat, www.nuheat.com; 800.778.9276.