A cooktop assembly includes a burner box and a controller disposed on the burner box. A mounting panel is coupled to the burner box over the controller. The mounting panel defines a plurality of embossed features. Each of the plurality of embossed features extends vertically upward from discrete portions of the mounting panel. A plurality of coil assemblies includes individual coil assemblies. Each of the individual coil assemblies includes a coil disposed on a coil plate that defines more than one aperture. Each of the individual embossed features extends through an aperture of the more than one aperture defined by one of the coil plates when the individual coil assemblies are disposed on the mounting panel. A cooktop is disposed over the plurality of coil assemblies and coupled to the burner box.