What is the specified gap for electrodes in a boiler system?

The specified gap for electrodes in a boiler system is critical for ensuring proper operation and efficiency. A gap of 1/8 to 5/32 inches is commonly recommended because it allows for an optimal spark discharge while reducing the likelihood of misfires or incomplete combustion. This specific range helps generate a reliable ignition within the burner system, which is essential for maintaining consistent operational performance and achieving the necessary fuel-to-air ratios.

Furthermore, having the correct electrode gap contributes to lower emissions and better fuel efficiency. A gap that is too wide may lead to weak sparks, which increase the risk of burner operational issues. Conversely, a gap that is too narrow can lead to excessive wear on the electrodes and potential short-circuiting, causing failures in the ignition system.

The other options fall outside the accepted range for electrode gaps in boiler systems, making them less suitable and potentially problematic for ensuring the efficient ignition of fuel.