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Water heater having a low NOx burner integrated with FVIR platform

  • US 6,994,056 B1
  • Filed: 09/03/2004
  • Issued: 02/07/2006
  • Est. Priority Date: 09/03/2004
  • Status: Active Grant
First Claim
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1. A fuel-fired heating appliance comprising:

  • a combustion chamber separated from a plenum area by a wall structure;

    an inlet space for receiving combustion air from outside said appliance; and

    a fuel burner having a hollow body with an outlet portion thereof projecting from said wall structure into said combustion chamber, and an inlet portion thereof projecting from said wall structure into said plenum area, said inlet portion having a venturi inlet structure associated therewith, communicated with said inlet space, and operative to flow combustion air from said inlet space into said inlet portion of said hollow body, said wall structure being defined by a peripheral portion of said fuel burner.

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