Which of the following is a potential issue if incoming gas pressure is too low?

When the incoming gas pressure is too low, one of the main consequences is that burners may not operate properly. Burners require a specific gas pressure to achieve optimal combustion. If the pressure falls below this level, it can lead to incomplete combustion, which may result in a weak flame or even cause the burners to go out entirely. This improper operation can manifest in various ways, such as fluctuating flame heights, difficulty in maintaining consistent temperature, or the inability for the appliance to reach the desired cooking temperatures.

In contrast, low gas pressure would not lead to increased fuel efficiency, as inefficient combustion typically results in wasted fuel. While decreased flame color could occur, it is more a result of combustion issues rather than a direct indication of low pressure. Excessive noise from the chimney is generally related to venting issues rather than gas pressure, although improper combustion can lead to other operational anomalies. Thus, the proper function of the burners is significantly affected by adequate gas pressure levels.