Patent ID: 6026804
Filing Date: 2000-02-22
Classification: F24H,F28F

Abstract:
A fluid heater comprising:(a) a housing;(b) a burner unit disposed in a bottom portion of said housing for burning combustible fuel;(c) a combustion chamber disposed within said housing where said combustible fuel is burned; and(d) a heat exchanger disposed substantially within said housing over said combustion chamber, said heat exchanger absorbing heat generated from burning said combustible fuel and conducting the heat to a fluid to be heated, said heat exchanger including a pair of spaced, parallel, stainless steel tubesheets with a plurality of tubes running therebetween and sealingly received within mating apertures in each of said tubesheets, a front header and a rear header removably attached to said tubesheets distal to said tubes, said heat exchanger having an inlet and an outlet for receiving and discharging, respectively, the fluid to be heated, said front header and said rear header being composed of plastic.