Patent ID: 8091514

Claim:
An energy re-claimer for preheating water for a gas-fired water heater, said water heater having a draft diverter and a flue, said energy re-claimer comprising: a generally cylindrical outer wall having an inner surface and an outer surface, a first end and a second end; a generally cylindrical inner wall disposed inside said outer wall, said inner wall having an inner surface and an outer surface, a first end and a second end; a longitudinal axis passing through the center of the energy re-claimer parallel to said outer wall and said inner wall; a continuous pipe for carrying water for heating, said pipe disposed inside said inner wall; and a plurality of heat exchange disks disposed inside said inner wall, said disks oriented perpendicular to said axis, wherein each of said heat exchange disks further comprises: an upper surface and a lower surface; a plurality of openings for passage of said pipe; and a plurality of hot air passages, whereby, water passing through said pipe is heated by gases from said water heater.