Patent ID: 6736634
Filing Date: 2004-05-18
Classification: F23C,F23D

Abstract:
A combustion system for use in a fuel-fired apparatus comprising:a fuel-fired burner having an inlet and an outlet, said burner operative for receiving fuel and primary air in said inlet and generating a primary air and fuel mixture within said outlet to produce a flame extending substantially downstream from said outlet; a catalyst disposed in said burner for oxidizing at least a portion of the fuel in the primary air and fuel mixture, said catalyst being disposed substantially upstream of the flame; primary air supply means for controlling the amount of primary air but not the amount of fuel supplied to said inlet at a level which will limit a temperature of said catalyst to a predetermined level commensurate with a long life of said catalyst wherein the amount of primary air supplied to said inlet is substantially below that required for stoichiometric combustion and a radiation baffle disposed in the area of the flame for radiating heat therefrom and reducing the temperature of the flame.