Plug and play burner

A combustion system, comprising:

• a fuel and oxidant source configured to output fuel and oxidant;
• a plurality of perforated flame holders, including at least:
• a first perforated flame holder positioned to receive a first portion of the fuel and oxidant and to support a first combustion reaction of the fuel and oxidant within the first perforated flame holder;
• and
• a second perforated flame holder positioned to receive a second portion of the fuel and oxidant and to support a second combustion reaction of the fuel and oxidant within the second perforated flame holder;
• the first and second perforated flame holders being separated by a gap;
• a metal flange that is configurable for attachment to a furnace wall, the metal flange having an inner surface and an outer surface, and defining a flange aperture passing through the metal flange between the inner surface and the outer surface;
• a plurality of support legs, each operatively coupled to the metal flange and extending inwardly from the flange, each support leg being formed at least partially from a ceramic material;
• the plurality of perforated flame holders being operatively coupled to each of the plurality of support legs such that the plurality of support legs collectively support the plurality of perforated flame holders at a distance from the metal flange, the plurality of perforated flame holders including an input surface and an output surface;
• and
• a combustion air register operatively coupled to the flange and disposed adjacent to the outer surface of the flange, the combustion air register being configured to control a flow of combustion air through the flange aperture to the plurality of perforated flame holders;
• wherein the fuel and oxidant source includes a fuel delivery system including a plurality of fuel nozzles configured to deliver gaseous fuel toward the input surface of the plurality of perforated flame holders.