What voltage does an ignition transformer typically step up to in a residential oil burner?

An ignition transformer in a residential oil burner typically steps up the voltage to around 10,000 volts. This high voltage is necessary to create a strong enough spark to ignite the oil mist in the combustion chamber. The ignition process requires this high voltage to ensure a reliable and consistent flame ignition, which is critical for the efficient operation of the burner.

While values like 5,000 volts might be found in some systems, the standard for most residential oil burners is around 10,000 volts, as this ensures adequate spark strength to overcome any environmental factors that could impede ignition. Similarly, voltages of 15,000 volts are generally not used in residential applications, as they may exceed the requirements and could potentially pose safety concerns without providing additional benefits for ignition.