Patent ID: 6296050
Filing Date: 2001-10-02
Classification: F23C,F28D

Abstract:
A heat exchanger, comprising:a) a central chamber;b) a first manifold connected to the central chamber;c) a first plurality of straight tubes each having a proximal end and a distal end connected to the first manifold, said first plurality of straight tubes being arranged in a first circumferential pattern around the central chamber;d) a second plurality of straight tubes each having a proximal end and a distal end connected to the first manifold, said second plurality of straight tubes being arranged in a second circumferential pattern around the central chamber;e) a second manifold connected to the proximal ends of the straight tubes, said second manifold having an exhaust vent; andf) a burner tube having a flame end, wherein the flame end is positioned within the central chamber.