Patent ID: 7582253

Claim:
A heat exchanger system, said system comprising: a furnace having means for heating an interior of the furnace and generating exhaust gases in the temperature range of about 4000° F. to 5000° F.; at least one heat exchange panel of sinuously winding piping having an inlet and an outlet; an input manifold in fluid communication with the inlet of the at least one panel; an output manifold in fluid communication with the outlet of the at least one panel; the piping being configured to have a cooling fluid flowing through the piping; the piping being located to have a stream of hot exhaust gasses from the furnace flowing over the piping; wherein the sinuously winding piping is substantially an assemblage of sectional lengths of connected tubes mounted side-by-side; and wherein the connected tubes are secured to each other with links therein forming the at least one panel, the links separating adjacent tubes so that there is a space between the adjacent tubes along at least a portion of the length of the adjacent tubes.