Patent ID: 8020783

Claim:
An apparatus for heating or cooling structures comprised of: (a) a plurality of radiant mat grid tiles forming a contiguous matrix of radiant mat grid tiles, each tile being square shaped with an upper surface and a lower surface; (b) each tile having a plurality of protuberances affixed to the perimeter of each respective tile; (c) each protuberance affixed by an attachment means for anchoring the protuberance to its respective tile so that each protuberance extends outside the perimeter of the tile; (d) each tile also having a plurality of protuberance receptacles placed along the interior of the circumference of the tile juxtaposed in a position such that each can lock onto the protuberance of a neighboring tile; (e) each tile having a plurality of weight bearing support knobs on its upper surface; (f) each weight bearing support knob having a recess at the upper end; (g) each recess containing a screw guide opening in its center; (h) each tile having a plurality of tube cradles protruding vertically from the upper surface of the tile to support tubing; (i) each tube cradle being immediately adjacent to one or more weight bearing support knobs; (j) each weight bearing support knob adjacent to a tube cradle having an indented undercut notch in its vertical surface on each side adjacent to each tube cradle so as to allow tubing to snap into each tube cradle and hold the tubing in place; (k) the contiguous matrix of radiant mat grid tiles for covering a desired part of the floors, walls, sides or ceiling of a structure to be heated or cooled; (l) a length of tubing inserted into a plurality of tube cradles on each tile comprising the matrix of radiant mat grid tiles; (m) the tubing being snapped into the indented undercut notch in the vertical surface of each weight bearing support knob adjacent to each tube cradle the tubing is placed on; (n) the tubing connected to a pumping manifold means for pumping a liquid to enable the circulation of a heated or cooled liquid through the tubing; (o) the matrix of tiles covered with an over-pour material.