A burner apparatus includes a mounting head having a fuel inlet opening defined in the mounting head for receiving combustion air and fuel gas through the opening. That unit is controlled by a controller to produce a toner pattern on the receiver. The matrix user interface allows a user to enter a large number of data points per minute, compared to conventional systems, which may require a user to swipe a bar code, enter an indicia, or enter a rowcolumn position prior to entering data.