Unlike other heating systems, in-floor systems call no attention to themselves. They are not only silent, but also totally invisible. That's a new concept. Traditionally, heating systems have included components—whether radiators, baseboards, or vents—in the conditioned rooms. In-floor heating, by contrast, doesn't encroach at all into the living space. With its panels hidden out of the way, beneath the floor, you are free to outfit your space as you wish. You don't even have to look at—let alone arrange furniture around—any clunky, space-hogging, or unsightly heating components.