Broil King outdoor gas grills are equipped with a metal burner unit. The burner may eventually wear out from the regular cycles of high heat and cooling. As a burner goes bad, pieces of the metal part begin to flake and chip off. This may be accompanied by rust. With significant damage, the burner jets begin to open up and flames burn higher than you can manage with the control knobs. It's time for a replacement.
Close the knob on the propane tank below your Broil King, turning the knob clockwise until tight.
Raise the lid on the Broil King to the upright position and remove the two cooking grates. Set them aside on the grass.
Remove the ceramic briquettes or lava rocks inside the grill and lift out the support grates underneath them to expose the burner. Depending on your Broil King model, your burner may be tube- or H-shaped.
Spray lubricant on the bolt and nut on the underside of the Broil King in the centre. This bolt holds the burner securely.
Unscrew the nut on the underside of the grill from the bolt, using a wrench or pliers.
Pull the two tubes attached to the burner below the grill from the two Venturi pipes that are connected to the back of the Broil King control panel. The burner tubes are not physically attached, but simply pull straight out of the Venturi pipes.
Grab the burner from the inside of the grill and lift upward, pulling the burner toward you at an angle to remove the connecting tubes as well. Take this part or the model number of the Broil King to the store as an aid to buying the correct replacement part.
Insert the connecting tubes on the new burner into the two holes on the inside bottom of your grill and lower the new burner into position until it rests flat on the inside bottom of the grill. The bolt in the new burner must extend into the centre hole in the bottom of the grill.
Guide the two burner tubes into the Venturi pipes. The end of each burner tube should be visible through the wire screen on the side of each Venturi pipe.
Tighten the nut to the bolt on the underside of the Broil King grill with pliers or a wrench.
Replace the support grates over the new burner inside the grill and arrange the briquettes or lava rocks in a single layer over the grates.
Replace the cooking grates and lower the lid on the Broil King.