Burner assembly for cooktop appliance and method for operating same

1. A burner assembly of a cooktop appliance, the burner assembly comprising:

a baseplate;

a first burner defining a plurality of outlets for directing gaseous fuel therefrom, the first burner being disposed on the baseplate;

a second burner defining a plurality of outlets for directing gaseous fuel therefrom, the second burner being disposed on the baseplate and having a shape different from a shape of the first burner; and

a knob operable to control a gaseous fuel supply to the first burner and a gaseous fuel supply to the second burner, the knob movable to a first position wherein the first burner outputs a maximum gaseous fuel supply and the second burner outputs no gaseous fuel supply, a second position wherein the first burner outputs a minimum gaseous fuel supply and the second burner outputs no gaseous fuel supply, a third position wherein the first burner outputs a minimum gaseous fuel supply and the second burner outputs a maximum gaseous fuel supply, and a fourth position wherein the first burner outputs a minimum gaseous fuel supply and the second burner outputs a minimum gaseous fuel supply,

wherein the second burner comprise opposing burner portions and a seating portion between the opposing burner portions, the first burner being disposed in the seating position,

wherein the second burner defines at least one aperture in the seating portion between the first burner and one of the opposing burner portions,

wherein the second burner further comprises a top cover extending over the at least one aperture, and

wherein the baseplate defines an additional aperture below the at least one aperture and top cover of the second burner to facilitate airflow through the at least one aperture to the second burner.

2. The burner assembly of claim 1 , wherein the knob is movable sequentially from the first position to the second position.

3. The burner assembly of claim 1 , wherein the knob is movable sequentially from the third position to the fourth position.

4. The burner assembly of claim 1 , wherein the knob is movable sequentially to the first position, then the second position, then the third position, and then the fourth position.

5. The burner assembly of claim 1 , wherein the knob is movable sequentially to the third position, then the fourth position, then the first position, and then the second position.

6. The burner assembly of claim 1 , wherein a power output in the third position is approximately equal to a power output in the first position.

7. The burner assembly of claim 1 , further comprising a valve configured to supply gaseous fuel to the first burner and the second burner, the knob operably connected to the valve.

8. The burner assembly of claim 1 , wherein the second burner has a generally oval shape comprising opposing long straight sides and opposing short curved sides.

9. The burner assembly of claim 8 , wherein the first burner has a circular shape having a diameter less than lengths of the opposing short curved sides.

10. A method for operating a burner assembly of a cooktop appliance, the burner assembly comprising a first burner and a second burner each defining a plurality of outlets for directing gaseous fuel therefrom, the second burner having a shape different from a shape of the first burner and defining an aperture between the first burner and the second burner, the burner assembly further comprising a baseplate on which the first burner and the second burner are disposed, the baseplate defining an additional aperture beneath the second burner, the method comprising:

outputting a maximum gaseous fuel supply to the first burner and no gaseous fuel supply to the second burner when a burner assembly knob is in a first position;

outputting a minimum gaseous fuel supply to the first burner and no gaseous fuel supply to the second burner when the knob is in a second position;

outputting a minimum gaseous fuel supply to the first burner and a maximum gaseous fuel supply to the second burner when the knob is in a third position, wherein a power output in the third position is approximately equal to a power output in the first position; and

outputting a minimum gaseous fuel supply to the first burner and a minimum gaseous fuel supply to the second burner when the knob is in a fourth position.

11. The method of claim 10 , wherein the knob is movable sequentially from the first position to the second position.

12. The method of claim 10 , wherein the knob is movable sequentially from the third position to the fourth position.

13. The method of claim 10 , wherein the knob is movable sequentially to the first position, then the second position, then the third position, and then the fourth position.

14. The method of claim 10 , wherein the knob is movable sequentially to the third position, then the fourth position, then the first position, and then the second position.

15. The method of claim 10 , further comprising igniting the gaseous fuel.

16. The method of claim 10 , further comprising outputting no gaseous fuel supply to the first burner and a minimum gaseous fuel supply to the second burner when the knob is in a fifth position.

17. The method of claim 10 , wherein the knob is operably connected to a valve, the valve configured to supply gaseous fuel to the first burner and the second burner.