Underfloor Heating System also called radiant floor heating. With a temperature not higher than 60 DEG C hot water as the heating medium, circulation flow in the filling layer of the heating pipe buried below the ground, heating the whole floor and through the ground to radiation and convection heat transfer mode to the indoor heating of a heating means. The heat dissipation characteristics is from bottom to top and it has the characteristics of warm, comfortable(heat evenly without drying), health, energy, etc.