When custom home builder, George Royce, was looking for a radiant subfloor heating system for his eco-friendly, ranch-style home in Wellington, Nev., he looked high and low for a product that was energy efficient, simple to install, long lasting and, of course, dependable. He found a product with all those attributes and much more when he stumbled upon Step Warmfloor, an innovative radiant heating system with self-regulating properties.