Ignition inhibiting gas water heater

A water heater comprising:

• a water container;
• a combustion chamber located adjacent said container, said combustion chamber having a floor portion with an opening;
• a conduit extending upwardly from and being substantially air tightly sealed to said open;
• a flame trap positioned across said conduit, said flame trap permitting ingress of air and extraneous gases, if present, into said combustion chamber and prevent egress of flames from said structure;
• and
• a burner located inside said combustion chamber and positioned sufficiently close to said flame trap such that pressure pulses generated by said burner upon ignition blow away foreign matter, if any, that has accumulated on said flame trap.

A water heater comprising:

• a water container;
• a combustion chamber located adjacent said container;
• a flame trap positioned at an opening in said combustion chamber, said flame trap permitting ingress of air and extraneous gases, if present, into said combustion chamber and prevent egress of flames from said water heater;
• a burner located inside said combustion chamber and positioned sufficiently close to said flame trap such that pressure pulses generated by said burner upon ignition blow away foreign matter, if any, that has accumulated on said flame trap;
• and
• a blocking plate positioned within said combustion chamber and spaced above said opening.

A water heater comprising:

• a water container;
• a combustion chamber located adjacent said container;
• a flame trap positioned at an opening in said combustion chamber, said flame trap permitting ingress of air and extraneous gases, if present, into said combustion chamber and prevent egress of flames from said water heater;
• a burner located inside said combustion chamber and positioned sufficiently close to said flame trap such that pressure pulses generated by said burner upon ignition blow away foreign matter, if any, that has accumulated on said flame trap;
• and
• a conduit substantially airtightly sealed to said opening, said flame trap extending across an upper portion of said conduit.