Patent ID: 6698522
Filing Date: 2004-03-02
Classification: A62C,B21D,B65D,F23D,F23M

Abstract:
A gas-fired hot water heater which is fire-safed against flash-back ignition of fugitive flammable vapors accidentally occurring in the surrounding atmosphere, said heater comprising:(a) a cabinet, (b) a tank located in said cabinet, (c) a combustion chamber in said cabinet, (d) a burner mounted in said combustion chamber for heating water in said tank, (d) a gas-supply line leading into said burner, (e) an opening in said cabinet for allowing air to enter said combustion chamber to mix with said natural gas and produce a flame in said burner, (g) and a flame arrester covering said opening in said cabinet for preventing said flame in said burner from flashing out of said cabinet.