What is the normal output voltage for an ignition transformer?

The typical output voltage for an ignition transformer in an oil heating system is around 10,000 volts. This high voltage is essential for creating a reliable spark to ignite the oil mist sprayed into the combustion chamber. The ignition transformer increases the low input voltage from the primary circuit to a much higher voltage, which is necessary to overcome the resistance of the air gap during the ignition process.

This specific voltage of 10,000 volts is standard among most residential and commercial systems to ensure effective ignition and safe operation during the heating cycle. Offering an adequate spark at this voltage minimizes the risk of incomplete combustion, which can lead to higher emissions and inefficiency in the oil heating system.