A gas powered appliance includes a burner for burning gas, a flame sensor positioned proximate the burner to detect a strength of a flame on the burner and to output signals indicative of the strength of the flame, and a controller connected to the flame sensor. The controller includes a communication interface, a processor, and a memory containing instructions that program the controller to control the burner, receive the signals from the flame sensor indicative of the strength of the flame, determine the strength of the flame from the received signals, and output, using the communication interface, an indication of the strength of the flame to a mobile device for display on the mobile device.